chore(channel-specs): Move channel specs to separate files (#12989)

<!--A few plain bullets saying what changed and why, for a reviewer
skimming it - not a wall of text, not a restatement of the diff, not
generated boilerplate.-->
#### Description

- Moved channel specs to separate files under alert manager types
- Channel receivers are also moved the same file

<!--Reference issues using `Closes #issue-number` to enable automatic
closure on merge. -->
#### Issues closed by this PR
Closes
https://github.com/orgs/SigNoz/projects/34/views/26?pane=issue&itemId=252814150&issue=SigNoz%7Cpulse-pod%7C374

pkg/sqlmigration/049_add_route_policy.go

@@ -13,7 +13,6 @@ import (
 	"github.com/SigNoz/signoz/pkg/sqlschema"
 	"github.com/SigNoz/signoz/pkg/sqlstore"
 	"github.com/SigNoz/signoz/pkg/types"
-	"github.com/SigNoz/signoz/pkg/types/ruletypes"
 	"github.com/SigNoz/signoz/pkg/valuer"
 	"github.com/uptrace/bun"
 	"github.com/uptrace/bun/migrate"
@@ -50,6 +49,11 @@ type rule struct {
 	OrgID   string `bun:"org_id,type:text"`
 }
 
+type routePolicyRuleData struct {
+	PreferredChannels []string          `json:"preferredChannels"`
+	Labels            map[string]string `json:"labels"`
+}
+
 type addRoutePolicies struct {
 	sqlstore  sqlstore.SQLStore
 	sqlschema sqlschema.SQLSchema
@@ -187,20 +191,20 @@ func (migration *addRoutePolicies) migrateRulesToRoutePolicies(ctx context.Conte
 func (migration *addRoutePolicies) convertRulesToRoutes(rules []*rule, channelsByOrg map[string][]string) ([]*expressionRoute, error) {
 	var routes []*expressionRoute
 	for _, r := range rules {
-		var gettableRule ruletypes.GettableRule
-		if err := json.Unmarshal([]byte(r.Data), &gettableRule); err != nil {
+		var ruleData routePolicyRuleData
+		if err := json.Unmarshal([]byte(r.Data), &ruleData); err != nil {
 			return nil, errors.NewInternalf(errors.CodeInternal, "failed to unmarshal rule data for rule ID %s: %v", r.ID, err)
 		}
 
-		if len(gettableRule.PreferredChannels) == 0 {
+		if len(ruleData.PreferredChannels) == 0 {
 			channels, exists := channelsByOrg[r.OrgID]
 			if !exists || len(channels) == 0 {
 				continue
 			}
-			gettableRule.PreferredChannels = channels
+			ruleData.PreferredChannels = channels
 		}
 		severity := "critical"
-		if v, ok := gettableRule.Labels["severity"]; ok {
+		if v, ok := ruleData.Labels["severity"]; ok {
 			severity = v
 		}
 		expression := fmt.Sprintf(`%s == "%s" && %s == "%s"`, "threshold.name", severity, "ruleId", r.ID.String())
@@ -218,7 +222,7 @@ func (migration *addRoutePolicies) convertRulesToRoutes(rules []*rule, channelsB
 			},
 			Expression:     expression,
 			ExpressionKind: "rule",
-			Channels:       gettableRule.PreferredChannels,
+			Channels:       ruleData.PreferredChannels,
 			Name:           r.ID.StringValue(),
 			Enabled:        true,
 			OrgID:          r.OrgID,

pkg/tokenizer/opaquetokenizer/provider.go

@@ -364,12 +364,26 @@ func (provider *provider) gc(ctx context.Context, org *types.Organization) error
 }
 
 func (provider *provider) flushLastObservedAt(ctx context.Context, org *types.Organization) error {
-	accessTokenToLastObservedAt, err := provider.listLastObservedAtDesc(ctx, org.ID)
+	tokens, err := provider.tokenStore.ListByOrgID(ctx, org.ID)
 	if err != nil {
 		return err
 	}
 
-	if err := provider.tokenStore.UpdateLastObservedAtByAccessToken(ctx, accessTokenToLastObservedAt); err != nil {
+	observedTokens := make([]*authtypes.StorableToken, 0, len(tokens))
+	for _, token := range tokens {
+		cachedLastObservedAt, ok := provider.lastObservedAtCache.Get(lastObservedAtCacheKey(token.AccessToken, token.UserID))
+		if !ok {
+			continue
+		}
+
+		if err := token.UpdateLastObservedAt(cachedLastObservedAt); err != nil {
+			continue
+		}
+
+		observedTokens = append(observedTokens, token)
+	}
+
+	if err := provider.tokenStore.UpdateLastObservedAt(ctx, observedTokens); err != nil {
 		return err
 	}
 

pkg/tokenizer/tokenizerstore/sqltokenizerstore/store.go

@@ -232,15 +232,16 @@ func (store *store) ListByUserID(ctx context.Context, userID valuer.UUID) ([]*au
 	return tokens, nil
 }
 
-func (store *store) UpdateLastObservedAtByAccessToken(ctx context.Context, accessTokenToLastObservedAt []map[string]any) error {
-	if len(accessTokenToLastObservedAt) == 0 {
+func (store *store) UpdateLastObservedAt(ctx context.Context, tokens []*authtypes.StorableToken) error {
+	if len(tokens) == 0 {
 		return nil
 	}
 
 	values := store.
 		sqlstore.
 		BunDBCtx(ctx).
-		NewValues(&accessTokenToLastObservedAt)
+		NewValues(&tokens).
+		Column("id", "last_observed_at", "updated_at")
 
 	_, err := store.
 		sqlstore.
@@ -250,8 +251,8 @@ func (store *store) UpdateLastObservedAtByAccessToken(ctx context.Context, acces
 		Model((*authtypes.StorableToken)(nil)).
 		TableExpr("update_cte").
 		Set("last_observed_at = update_cte.last_observed_at").
-		Where("auth_token.access_token = update_cte.access_token").
-		Where("auth_token.user_id = update_cte.user_id").
+		Set("updated_at = update_cte.updated_at").
+		Where("auth_token.id = update_cte.id").
 		Exec(ctx)
 	if err != nil {
 		return err

pkg/types/alertmanagertypes/channel_email.go

@@ -0,0 +1,62 @@
+package alertmanagertypes
+
+import (
+	"maps"
+	"net/textproto"
+	"slices"
+
+	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/valuer"
+	"github.com/prometheus/alertmanager/config"
+)
+
+// ChannelEmailConfig carries no SMTP transport fields: the smarthost,
+// credentials and TLS settings come from the deployment's global config, so a
+// channel can only choose recipients and body.
+type ChannelEmailConfig struct {
+	SendResolved *bool                        `json:"sendResolved,omitempty"`
+	To           string                       `json:"to" required:"true"`
+	HTML         valuer.UnsetOrNonEmptyString `json:"html"`
+	Headers      map[string]string            `json:"headers,omitempty"`
+}
+
+func (c ChannelEmailConfig) Validate() error {
+	if c.To == "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.to is required for an email channel")
+	}
+
+	// A read reports header names as textproto canonicalizes them, turning
+	// "subject" into "Subject", so a name that is not already in that form is
+	// rejected rather than answered with one the caller never sent.
+	for _, header := range slices.Sorted(maps.Keys(c.Headers)) {
+		if canonical := textproto.CanonicalMIMEHeaderKey(header); canonical != header {
+			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.headers name %q must be written as %q", header, canonical)
+		}
+	}
+
+	return nil
+}
+
+func (c ChannelEmailConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
+	return &Receiver{Receiver: &config.Receiver{
+		Name: displayName,
+		EmailConfigs: []*config.EmailConfig{{
+			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultEmailConfig.VSendResolved)},
+			To:             c.To,
+			HTML:           c.HTML.StringValue(),
+			Headers:        c.Headers,
+		}},
+	}}, nil
+}
+
+func newChannelEmailConfigFromReceiver(_ string, receiver *Receiver) (ChannelSpec, error) {
+	email := receiver.EmailConfigs[0]
+	sendResolved := email.VSendResolved
+
+	return &ChannelEmailConfig{
+		SendResolved: &sendResolved,
+		To:           email.To,
+		HTML:         valuer.UnsetIfEmpty(email.HTML),
+		Headers:      email.Headers,
+	}, nil
+}

pkg/types/alertmanagertypes/channel_googlechat.go

@@ -5,10 +5,59 @@ import (
 	"strings"
 
 	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/valuer"
 	"github.com/prometheus/alertmanager/config"
 	commoncfg "github.com/prometheus/common/config"
 )
 
+type ChannelGoogleChatConfig struct {
+	SendResolved *bool                        `json:"sendResolved,omitempty"`
+	WebhookURL   string                       `json:"webhookUrl" required:"true" format:"password"`
+	Title        valuer.UnsetOrNonEmptyString `json:"title"`
+	Text         valuer.UnsetOrNonEmptyString `json:"text"`
+}
+
+func (c ChannelGoogleChatConfig) Validate() error {
+	if c.WebhookURL == "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.webhookUrl is required for a googlechat channel")
+	}
+
+	return nil
+}
+
+func (c ChannelGoogleChatConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
+	webhookURL, err := parseSecretURL(c.WebhookURL)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Receiver{
+		Receiver: &config.Receiver{Name: displayName},
+		GoogleChatConfigs: []*GoogleChatReceiverConfig{{
+			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, DefaultGoogleChatReceiverConfig.VSendResolved)},
+			WebhookURL:     webhookURL,
+			Title:          c.Title.StringValue(),
+			Text:           c.Text.StringValue(),
+		}},
+	}, nil
+}
+
+func newChannelGoogleChatConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
+	googlechat := receiver.GoogleChatConfigs[0]
+	sendResolved := googlechat.VSendResolved
+
+	if err := rejectAnyHTTPAuth(name, googlechat.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	return &ChannelGoogleChatConfig{
+		SendResolved: &sendResolved,
+		WebhookURL:   formatSecretURL(googlechat.WebhookURL),
+		Title:        valuer.UnsetIfEmpty(googlechat.Title),
+		Text:         valuer.UnsetIfEmpty(googlechat.Text),
+	}, nil
+}
+
 type GoogleChatReceiverConfig struct {
 	config.NotifierConfig `yaml:",inline" json:",inline"`
 

pkg/types/alertmanagertypes/channel_incidentio.go

@@ -6,10 +6,64 @@ import (
 	"strings"
 
 	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/valuer"
 	"github.com/prometheus/alertmanager/config"
 	commoncfg "github.com/prometheus/common/config"
 )
 
+type ChannelIncidentIOConfig struct {
+	SendResolved *bool                        `json:"sendResolved,omitempty"`
+	URL          string                       `json:"url" required:"true"`
+	Token        string                       `json:"token" required:"true" format:"password"`
+	Title        valuer.UnsetOrNonEmptyString `json:"title"`
+	Description  valuer.UnsetOrNonEmptyString `json:"description"`
+	Metadata     map[string]string            `json:"metadata,omitempty"`
+}
+
+func (c ChannelIncidentIOConfig) Validate() error {
+	if c.URL == "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.url is required for an incidentio channel")
+	}
+
+	if c.Token == "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.token is required for an incidentio channel")
+	}
+
+	return nil
+}
+
+func (c ChannelIncidentIOConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
+	return &Receiver{
+		Receiver: &config.Receiver{Name: displayName},
+		IncidentIOConfigs: []*IncidentIOReceiverConfig{{
+			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, DefaultIncidentIOReceiverConfig.VSendResolved)},
+			URL:            c.URL,
+			Token:          config.Secret(c.Token),
+			Title:          c.Title.StringValue(),
+			Description:    c.Description.StringValue(),
+			Metadata:       c.Metadata,
+		}},
+	}, nil
+}
+
+func newChannelIncidentIOConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
+	incidentio := receiver.IncidentIOConfigs[0]
+	sendResolved := incidentio.VSendResolved
+
+	if err := rejectAnyHTTPAuth(name, incidentio.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	return &ChannelIncidentIOConfig{
+		SendResolved: &sendResolved,
+		URL:          incidentio.URL,
+		Token:        string(incidentio.Token),
+		Title:        valuer.UnsetIfEmpty(incidentio.Title),
+		Description:  valuer.UnsetIfEmpty(incidentio.Description),
+		Metadata:     incidentio.Metadata,
+	}, nil
+}
+
 // incidentIOEventsPathPrefix is the path of incident.io's HTTP alert source
 // endpoint (Alert Events V2 API). The full URL is per-source:
 // https://api.incident.io/v2/alert_events/http/<source_config_id>.

pkg/types/alertmanagertypes/channel_jira.go

@@ -7,11 +7,147 @@ import (
 	"time"
 
 	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/valuer"
 	"github.com/prometheus/alertmanager/config"
 	commoncfg "github.com/prometheus/common/config"
 	"github.com/prometheus/common/model"
 )
 
+type ChannelJiraConfig struct {
+	SendResolved *bool `json:"sendResolved,omitempty"`
+	// Site is the Jira Cloud base URL, https://<site>.atlassian.net. Only Jira
+	// Cloud is supported; the REST base is derived from it.
+	Site              string                       `json:"site" required:"true"`
+	Project           string                       `json:"project" required:"true"`
+	IssueType         string                       `json:"issueType" required:"true"`
+	Summary           valuer.UnsetOrNonEmptyString `json:"summary"`
+	Description       valuer.UnsetOrNonEmptyString `json:"description"`
+	Priority          string                       `json:"priority"`
+	Labels            []string                     `json:"labels,omitempty"`
+	ResolveTransition string                       `json:"resolveTransition"`
+	ReopenTransition  string                       `json:"reopenTransition"`
+	ReopenDuration    valuer.UnsetOrNonEmptyString `json:"reopenDuration"`
+	WontFixResolution string                       `json:"wontFixResolution"`
+	CustomFields      map[string]any               `json:"customFields,omitempty"`
+
+	Email    string `json:"email" required:"true"`
+	APIToken string `json:"apiToken" required:"true" format:"password"`
+}
+
+func (c ChannelJiraConfig) Validate() error {
+	for _, required := range []struct {
+		value string
+		field string
+	}{
+		{c.Site, "site"},
+		{c.Project, "project"},
+		{c.IssueType, "issueType"},
+		{c.Email, "email"},
+		{c.APIToken, "apiToken"},
+	} {
+		if required.value == "" {
+			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.%s is required for a jira channel", required.field)
+		}
+	}
+
+	if !c.ReopenDuration.IsZero() {
+		reopenDuration, err := model.ParseDuration(c.ReopenDuration.StringValue())
+		if err != nil {
+			return errors.WrapInvalidInputf(err, ErrCodeAlertmanagerChannelInvalid, "config.spec.reopenDuration %q is not a valid duration", c.ReopenDuration)
+		}
+
+		// A read reports the duration as model.Duration formats it, collapsing
+		// "72h" into "3d", so a value that is not already in that form is rejected
+		// rather than answered with one the caller never sent.
+		if canonical := reopenDuration.String(); canonical != c.ReopenDuration.StringValue() {
+			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.reopenDuration %q must be written as %q", c.ReopenDuration, canonical)
+		}
+	}
+
+	return nil
+}
+
+func (c ChannelJiraConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
+	// Seeded from upstream's default rather than a zero value: FollowRedirects
+	// and EnableHTTP2 marshal unconditionally, so a zero value would persist them
+	// as false and read back as a config ChannelJiraConfig cannot represent.
+	httpConfig := commoncfg.DefaultHTTPClientConfig
+	httpConfig.BasicAuth = &commoncfg.BasicAuth{
+		Username: c.Email,
+		Password: commoncfg.Secret(c.APIToken),
+	}
+
+	jira := &JiraReceiverConfig{
+		// JiraReceiverConfig seeds no send_resolved of its own, so unset means off.
+		NotifierConfig:    config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, false)},
+		Site:              c.Site,
+		Project:           c.Project,
+		IssueType:         c.IssueType,
+		Summary:           c.Summary.StringValue(),
+		Description:       c.Description.StringValue(),
+		Priority:          c.Priority,
+		Labels:            c.Labels,
+		ResolveTransition: c.ResolveTransition,
+		ReopenTransition:  c.ReopenTransition,
+		WontFixResolution: c.WontFixResolution,
+		CustomFields:      c.CustomFields,
+		HTTPConfig:        &httpConfig,
+	}
+
+	if !c.ReopenDuration.IsZero() {
+		reopenDuration, err := model.ParseDuration(c.ReopenDuration.StringValue())
+		if err != nil {
+			return nil, errors.WrapInvalidInputf(err, ErrCodeAlertmanagerChannelInvalid, "parse reopenDuration %q", c.ReopenDuration)
+		}
+		jira.ReopenDuration = reopenDuration
+	}
+
+	return &Receiver{
+		Receiver:    &config.Receiver{Name: displayName},
+		JiraConfigs: []*JiraReceiverConfig{jira},
+	}, nil
+}
+
+func newChannelJiraConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
+	jira := receiver.JiraConfigs[0]
+	sendResolved := jira.VSendResolved
+
+	if err := rejectUnsupportedHTTPConfig(name, jira.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	if jira.HTTPConfig != nil && jira.HTTPConfig.Authorization != nil {
+		return nil, errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "channel %q sets http_config.authorization, which is not supported", name)
+	}
+
+	if err := rejectHTTPBasicAuthBeyondPassword(name, jira.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	spec := &ChannelJiraConfig{
+		SendResolved:      &sendResolved,
+		Site:              jira.Site,
+		Project:           jira.Project,
+		IssueType:         jira.IssueType,
+		Summary:           valuer.UnsetIfEmpty(jira.Summary),
+		Description:       valuer.UnsetIfEmpty(jira.Description),
+		Priority:          jira.Priority,
+		Labels:            jira.Labels,
+		ResolveTransition: jira.ResolveTransition,
+		ReopenTransition:  jira.ReopenTransition,
+		ReopenDuration:    valuer.UnsetIfEmpty(jira.ReopenDuration.String()),
+		WontFixResolution: jira.WontFixResolution,
+		CustomFields:      jira.CustomFields,
+	}
+
+	if jira.HTTPConfig != nil && jira.HTTPConfig.BasicAuth != nil {
+		spec.Email = jira.HTTPConfig.BasicAuth.Username
+		spec.APIToken = string(jira.HTTPConfig.BasicAuth.Password)
+	}
+
+	return spec, nil
+}
+
 const defaultJiraReopenDuration = model.Duration(3 * 24 * time.Hour)
 
 // Service accounts authenticate against the api.atlassian.com gateway (keyed by

pkg/types/alertmanagertypes/channel_jsmops.go

@@ -2,10 +2,63 @@ package alertmanagertypes
 
 import (
 	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/valuer"
 	"github.com/prometheus/alertmanager/config"
 	commoncfg "github.com/prometheus/common/config"
 )
 
+// ChannelJSMOpsConfig carries no API URL: JSM Ops is a single global gateway
+// keyed by the integration API key, which the notifier pins itself.
+type ChannelJSMOpsConfig struct {
+	SendResolved *bool                        `json:"sendResolved,omitempty"`
+	APIKey       string                       `json:"apiKey" required:"true" format:"password"`
+	Message      valuer.UnsetOrNonEmptyString `json:"message"`
+	Description  valuer.UnsetOrNonEmptyString `json:"description"`
+	Priority     string                       `json:"priority"`
+	// Tags is the comma-separated list JSM Ops attaches to the alert.
+	Tags valuer.UnsetOrNonEmptyString `json:"tags"`
+}
+
+func (c ChannelJSMOpsConfig) Validate() error {
+	if c.APIKey == "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.apiKey is required for a jsmops channel")
+	}
+
+	return nil
+}
+
+func (c ChannelJSMOpsConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
+	return &Receiver{
+		Receiver: &config.Receiver{Name: displayName},
+		JSMOpsConfigs: []*JSMOpsReceiverConfig{{
+			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, DefaultJSMOpsReceiverConfig.VSendResolved)},
+			APIKey:         config.Secret(c.APIKey),
+			Message:        c.Message.StringValue(),
+			Description:    c.Description.StringValue(),
+			Priority:       c.Priority,
+			Tags:           c.Tags.StringValue(),
+		}},
+	}, nil
+}
+
+func newChannelJSMOpsConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
+	jsmops := receiver.JSMOpsConfigs[0]
+	sendResolved := jsmops.VSendResolved
+
+	if err := rejectAnyHTTPAuth(name, jsmops.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	return &ChannelJSMOpsConfig{
+		SendResolved: &sendResolved,
+		APIKey:       string(jsmops.APIKey),
+		Message:      valuer.UnsetIfEmpty(jsmops.Message),
+		Description:  valuer.UnsetIfEmpty(jsmops.Description),
+		Priority:     jsmops.Priority,
+		Tags:         valuer.UnsetIfEmpty(jsmops.Tags),
+	}, nil
+}
+
 // JSMOpsAPIBaseURL is the native JSM Ops integration-events gateway. It is a
 // single global host keyed by the integration API key (no region/cloud id in
 // the path). The trailing slash is required: the Opsgenie notifier appends

pkg/types/alertmanagertypes/channel_msteams.go

@@ -0,0 +1,55 @@
+package alertmanagertypes
+
+import (
+	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/valuer"
+	"github.com/prometheus/alertmanager/config"
+)
+
+type ChannelMSTeamsConfig struct {
+	SendResolved *bool                        `json:"sendResolved,omitempty"`
+	WebhookURL   string                       `json:"webhookUrl" required:"true" format:"password"`
+	Title        valuer.UnsetOrNonEmptyString `json:"title"`
+	Text         valuer.UnsetOrNonEmptyString `json:"text"`
+}
+
+func (c ChannelMSTeamsConfig) Validate() error {
+	if c.WebhookURL == "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.webhookUrl is required for an msteams channel")
+	}
+
+	return nil
+}
+
+func (c ChannelMSTeamsConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
+	webhookURL, err := parseSecretURL(c.WebhookURL)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Receiver{Receiver: &config.Receiver{
+		Name: displayName,
+		MSTeamsV2Configs: []*config.MSTeamsV2Config{{
+			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultMSTeamsV2Config.VSendResolved)},
+			WebhookURL:     webhookURL,
+			Title:          c.Title.StringValue(),
+			Text:           c.Text.StringValue(),
+		}},
+	}}, nil
+}
+
+func newChannelMSTeamsConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
+	msteams := receiver.MSTeamsV2Configs[0]
+	sendResolved := msteams.VSendResolved
+
+	if err := rejectAnyHTTPAuth(name, msteams.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	return &ChannelMSTeamsConfig{
+		SendResolved: &sendResolved,
+		WebhookURL:   formatSecretURL(msteams.WebhookURL),
+		Title:        valuer.UnsetIfEmpty(msteams.Title),
+		Text:         valuer.UnsetIfEmpty(msteams.Text),
+	}, nil
+}

pkg/types/alertmanagertypes/channel_opsgenie.go

@@ -0,0 +1,71 @@
+package alertmanagertypes
+
+import (
+	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/valuer"
+	"github.com/prometheus/alertmanager/config"
+)
+
+type ChannelOpsgenieConfig struct {
+	SendResolved *bool                        `json:"sendResolved,omitempty"`
+	APIKey       string                       `json:"apiKey" required:"true" format:"password"`
+	APIURL       string                       `json:"apiUrl"`
+	Message      valuer.UnsetOrNonEmptyString `json:"message"`
+	Description  valuer.UnsetOrNonEmptyString `json:"description"`
+	Source       valuer.UnsetOrNonEmptyString `json:"source"`
+	Details      map[string]string            `json:"details,omitempty"`
+	Priority     string                       `json:"priority"`
+}
+
+func (c ChannelOpsgenieConfig) Validate() error {
+	if c.APIKey == "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.apiKey is required for an opsgenie channel")
+	}
+
+	return nil
+}
+
+func (c ChannelOpsgenieConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
+	var apiURL *config.URL
+	if c.APIURL != "" {
+		parsed, err := parseUpstreamURL(c.APIURL)
+		if err != nil {
+			return nil, err
+		}
+		apiURL = parsed
+	}
+
+	return &Receiver{Receiver: &config.Receiver{
+		Name: displayName,
+		OpsGenieConfigs: []*config.OpsGenieConfig{{
+			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultOpsGenieConfig.VSendResolved)},
+			APIKey:         config.Secret(c.APIKey),
+			APIURL:         apiURL,
+			Message:        c.Message.StringValue(),
+			Description:    c.Description.StringValue(),
+			Source:         c.Source.StringValue(),
+			Priority:       c.Priority,
+			Details:        c.Details,
+		}},
+	}}, nil
+}
+
+func newChannelOpsgenieConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
+	opsgenie := receiver.OpsGenieConfigs[0]
+	sendResolved := opsgenie.VSendResolved
+
+	if err := rejectAnyHTTPAuth(name, opsgenie.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	return &ChannelOpsgenieConfig{
+		SendResolved: &sendResolved,
+		APIKey:       string(opsgenie.APIKey),
+		APIURL:       formatUpstreamURL(opsgenie.APIURL),
+		Message:      valuer.UnsetIfEmpty(opsgenie.Message),
+		Description:  valuer.UnsetIfEmpty(opsgenie.Description),
+		Source:       valuer.UnsetIfEmpty(opsgenie.Source),
+		Priority:     opsgenie.Priority,
+		Details:      opsgenie.Details,
+	}, nil
+}

pkg/types/alertmanagertypes/channel_pagerduty.go

@@ -0,0 +1,92 @@
+package alertmanagertypes
+
+import (
+	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/valuer"
+	"github.com/prometheus/alertmanager/config"
+)
+
+type ChannelPagerdutyConfig struct {
+	SendResolved *bool                        `json:"sendResolved,omitempty"`
+	RoutingKey   string                       `json:"routingKey" required:"true" format:"password"`
+	URL          string                       `json:"url"`
+	Source       valuer.UnsetOrNonEmptyString `json:"source"`
+	Client       valuer.UnsetOrNonEmptyString `json:"client"`
+	ClientURL    valuer.UnsetOrNonEmptyString `json:"clientUrl"`
+	Description  valuer.UnsetOrNonEmptyString `json:"description"`
+	Severity     string                       `json:"severity"`
+	Component    string                       `json:"component"`
+	Group        string                       `json:"group"`
+	Class        string                       `json:"class"`
+	Details      map[string]string            `json:"details,omitempty"`
+}
+
+func (c ChannelPagerdutyConfig) Validate() error {
+	if c.RoutingKey == "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.routingKey is required for a pagerduty channel")
+	}
+
+	return nil
+}
+
+func (c ChannelPagerdutyConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
+	var eventsURL *config.URL
+	if c.URL != "" {
+		parsed, err := parseUpstreamURL(c.URL)
+		if err != nil {
+			return nil, err
+		}
+		eventsURL = parsed
+	}
+
+	return &Receiver{Receiver: &config.Receiver{
+		Name: displayName,
+		PagerdutyConfigs: []*config.PagerdutyConfig{{
+			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultPagerdutyConfig.VSendResolved)},
+			RoutingKey:     config.Secret(c.RoutingKey),
+			URL:            eventsURL,
+			Source:         c.Source.StringValue(),
+			Client:         c.Client.StringValue(),
+			ClientURL:      c.ClientURL.StringValue(),
+			Description:    c.Description.StringValue(),
+			Severity:       c.Severity,
+			Component:      c.Component,
+			Group:          c.Group,
+			Class:          c.Class,
+			Details:        newUpstreamDetails(c.Details),
+		}},
+	}}, nil
+}
+
+func newChannelPagerdutyConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
+	pagerduty := receiver.PagerdutyConfigs[0]
+	sendResolved := pagerduty.VSendResolved
+
+	if err := rejectAnyHTTPAuth(name, pagerduty.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	var details map[string]string
+	if len(pagerduty.Details) > 0 {
+		extracted, err := extractStringDetails(name, pagerduty.Details)
+		if err != nil {
+			return nil, err
+		}
+		details = extracted
+	}
+
+	return &ChannelPagerdutyConfig{
+		SendResolved: &sendResolved,
+		RoutingKey:   string(pagerduty.RoutingKey),
+		URL:          formatUpstreamURL(pagerduty.URL),
+		Source:       valuer.UnsetIfEmpty(pagerduty.Source),
+		Client:       valuer.UnsetIfEmpty(pagerduty.Client),
+		ClientURL:    valuer.UnsetIfEmpty(pagerduty.ClientURL),
+		Description:  valuer.UnsetIfEmpty(pagerduty.Description),
+		Severity:     pagerduty.Severity,
+		Component:    pagerduty.Component,
+		Group:        pagerduty.Group,
+		Class:        pagerduty.Class,
+		Details:      details,
+	}, nil
+}

pkg/types/alertmanagertypes/channel_slack.go

@@ -0,0 +1,182 @@
+package alertmanagertypes
+
+import (
+	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/valuer"
+	"github.com/prometheus/alertmanager/config"
+)
+
+type ChannelSlackConfig struct {
+	SendResolved *bool                        `json:"sendResolved,omitempty"`
+	APIURL       string                       `json:"apiUrl" required:"true" format:"password"`
+	Channel      string                       `json:"channel"`
+	Title        valuer.UnsetOrNonEmptyString `json:"title"`
+	Text         valuer.UnsetOrNonEmptyString `json:"text"`
+	Color        valuer.UnsetOrNonEmptyString `json:"color"`
+	TitleLink    valuer.UnsetOrNonEmptyString `json:"titleLink"`
+	Pretext      valuer.UnsetOrNonEmptyString `json:"pretext"`
+	Fallback     valuer.UnsetOrNonEmptyString `json:"fallback"`
+	Footer       valuer.UnsetOrNonEmptyString `json:"footer"`
+	Fields       []ChannelSlackField          `json:"fields,omitempty"`
+	Actions      []ChannelSlackAction         `json:"actions,omitempty"`
+}
+
+type ChannelSlackField struct {
+	Title string `json:"title" required:"true"`
+	Value string `json:"value" required:"true"`
+	Short *bool  `json:"short,omitempty"`
+}
+
+// ChannelSlackAction is a link button when URL is set, otherwise a message
+// button that needs Name. Upstream clears whichever side is not in use.
+type ChannelSlackAction struct {
+	Type    string                    `json:"type" required:"true"`
+	Text    string                    `json:"text" required:"true"`
+	URL     string                    `json:"url"`
+	Style   string                    `json:"style"`
+	Name    string                    `json:"name"`
+	Value   string                    `json:"value"`
+	Confirm *ChannelSlackConfirmation `json:"confirm,omitempty"`
+}
+
+type ChannelSlackConfirmation struct {
+	Text        string `json:"text" required:"true"`
+	Title       string `json:"title"`
+	OkText      string `json:"okText"`
+	DismissText string `json:"dismissText"`
+}
+
+func (c ChannelSlackConfig) Validate() error {
+	if c.APIURL == "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.apiUrl is required for a slack channel")
+	}
+
+	for i, field := range c.Fields {
+		if field.Title == "" || field.Value == "" {
+			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.fields[%d] requires title and value", i)
+		}
+	}
+
+	for i, action := range c.Actions {
+		if action.Type == "" || action.Text == "" {
+			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.actions[%d] requires type and text", i)
+		}
+		if action.URL == "" && action.Name == "" {
+			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.actions[%d] requires url or name", i)
+		}
+		if action.Confirm != nil && action.Confirm.Text == "" {
+			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.actions[%d].confirm requires text", i)
+		}
+	}
+
+	return nil
+}
+
+func (c ChannelSlackConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
+	apiURL, err := parseSecretURL(c.APIURL)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Receiver{Receiver: &config.Receiver{
+		Name: displayName,
+		SlackConfigs: []*config.SlackConfig{{
+			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultSlackConfig.VSendResolved)},
+			APIURL:         apiURL,
+			Channel:        c.Channel,
+			Title:          c.Title.StringValue(),
+			Text:           c.Text.StringValue(),
+			Color:          c.Color.StringValue(),
+			TitleLink:      c.TitleLink.StringValue(),
+			Pretext:        c.Pretext.StringValue(),
+			Fallback:       c.Fallback.StringValue(),
+			Footer:         c.Footer.StringValue(),
+			Fields:         newUpstreamSlackFields(c.Fields),
+			Actions:        newUpstreamSlackActions(c.Actions),
+		}},
+	}}, nil
+}
+
+func newChannelSlackConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
+	slack := receiver.SlackConfigs[0]
+	sendResolved := slack.VSendResolved
+
+	if err := rejectAnyHTTPAuth(name, slack.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	return &ChannelSlackConfig{
+		SendResolved: &sendResolved,
+		APIURL:       formatSecretURL(slack.APIURL),
+		Channel:      slack.Channel,
+		Title:        valuer.UnsetIfEmpty(slack.Title),
+		Text:         valuer.UnsetIfEmpty(slack.Text),
+		Color:        valuer.UnsetIfEmpty(slack.Color),
+		TitleLink:    valuer.UnsetIfEmpty(slack.TitleLink),
+		Pretext:      valuer.UnsetIfEmpty(slack.Pretext),
+		Fallback:     valuer.UnsetIfEmpty(slack.Fallback),
+		Footer:       valuer.UnsetIfEmpty(slack.Footer),
+		Fields:       newChannelSlackFields(slack.Fields),
+		Actions:      newChannelSlackActions(slack.Actions),
+	}, nil
+}
+
+func newUpstreamSlackFields(fields []ChannelSlackField) []*config.SlackField {
+	if len(fields) == 0 {
+		return nil
+	}
+
+	upstream := make([]*config.SlackField, 0, len(fields))
+	for _, field := range fields {
+		upstream = append(upstream, &config.SlackField{Title: field.Title, Value: field.Value, Short: field.Short})
+	}
+
+	return upstream
+}
+
+func newChannelSlackFields(upstream []*config.SlackField) []ChannelSlackField {
+	if len(upstream) == 0 {
+		return nil
+	}
+
+	fields := make([]ChannelSlackField, 0, len(upstream))
+	for _, field := range upstream {
+		fields = append(fields, ChannelSlackField{Title: field.Title, Value: field.Value, Short: field.Short})
+	}
+
+	return fields
+}
+
+func newUpstreamSlackActions(actions []ChannelSlackAction) []*config.SlackAction {
+	if len(actions) == 0 {
+		return nil
+	}
+
+	upstream := make([]*config.SlackAction, 0, len(actions))
+	for _, action := range actions {
+		upstreamAction := &config.SlackAction{Type: action.Type, Text: action.Text, URL: action.URL, Style: action.Style, Name: action.Name, Value: action.Value}
+		if action.Confirm != nil {
+			upstreamAction.ConfirmField = &config.SlackConfirmationField{Text: action.Confirm.Text, Title: action.Confirm.Title, OkText: action.Confirm.OkText, DismissText: action.Confirm.DismissText}
+		}
+		upstream = append(upstream, upstreamAction)
+	}
+
+	return upstream
+}
+
+func newChannelSlackActions(upstream []*config.SlackAction) []ChannelSlackAction {
+	if len(upstream) == 0 {
+		return nil
+	}
+
+	actions := make([]ChannelSlackAction, 0, len(upstream))
+	for _, upstreamAction := range upstream {
+		action := ChannelSlackAction{Type: upstreamAction.Type, Text: upstreamAction.Text, URL: upstreamAction.URL, Style: upstreamAction.Style, Name: upstreamAction.Name, Value: upstreamAction.Value}
+		if upstreamAction.ConfirmField != nil {
+			action.Confirm = &ChannelSlackConfirmation{Text: upstreamAction.ConfirmField.Text, Title: upstreamAction.ConfirmField.Title, OkText: upstreamAction.ConfirmField.OkText, DismissText: upstreamAction.ConfirmField.DismissText}
+		}
+		actions = append(actions, action)
+	}
+
+	return actions
+}

pkg/types/alertmanagertypes/channel_webhook.go

@@ -0,0 +1,98 @@
+package alertmanagertypes
+
+import (
+	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/prometheus/alertmanager/config"
+	commoncfg "github.com/prometheus/common/config"
+)
+
+// ChannelWebhookConfig splits apart the two authentication modes the legacy API
+// overloaded onto one password field, where an empty username meant the password
+// was really a bearer token. Username or Password may be set without the other,
+// as upstream allows, but not together with BearerToken.
+type ChannelWebhookConfig struct {
+	SendResolved *bool  `json:"sendResolved,omitempty"`
+	URL          string `json:"url" required:"true" format:"password"`
+	Username     string `json:"username"`
+	Password     string `json:"password" format:"password"`
+	BearerToken  string `json:"bearerToken" format:"password"`
+}
+
+func (c ChannelWebhookConfig) Validate() error {
+	if c.URL == "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.url is required for a webhook channel")
+	}
+
+	usesBasicAuth := c.Username != "" || c.Password != ""
+
+	if usesBasicAuth && c.BearerToken != "" {
+		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.bearerToken cannot be combined with config.spec.username or config.spec.password")
+	}
+
+	return nil
+}
+
+func (c ChannelWebhookConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
+	webhook := &config.WebhookConfig{
+		NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultWebhookConfig.VSendResolved)},
+		URL:            config.SecretTemplateURL(c.URL),
+	}
+
+	// Seeded from upstream's default rather than a zero value: FollowRedirects
+	// and EnableHTTP2 marshal unconditionally, so a zero value would persist
+	// them as false and read back as a config ChannelWebhookConfig cannot represent.
+	switch {
+	case c.Username != "" || c.Password != "":
+		httpConfig := commoncfg.DefaultHTTPClientConfig
+		httpConfig.BasicAuth = &commoncfg.BasicAuth{
+			Username: c.Username,
+			Password: commoncfg.Secret(c.Password),
+		}
+		webhook.HTTPConfig = &httpConfig
+	case c.BearerToken != "":
+		httpConfig := commoncfg.DefaultHTTPClientConfig
+		httpConfig.Authorization = &commoncfg.Authorization{
+			Type:        bearerAuthorizationType,
+			Credentials: commoncfg.Secret(c.BearerToken),
+		}
+		webhook.HTTPConfig = &httpConfig
+	}
+
+	return &Receiver{Receiver: &config.Receiver{
+		Name:           displayName,
+		WebhookConfigs: []*config.WebhookConfig{webhook},
+	}}, nil
+}
+
+func newChannelWebhookConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
+	upstream := receiver.WebhookConfigs[0]
+	sendResolved := upstream.VSendResolved
+	if err := rejectUnsupportedHTTPConfig(name, upstream.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	if err := rejectHTTPBasicAuthBeyondPassword(name, upstream.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	if err := rejectHTTPAuthorizationBeyondBearer(name, upstream.HTTPConfig); err != nil {
+		return nil, err
+	}
+
+	webhook := &ChannelWebhookConfig{
+		SendResolved: &sendResolved,
+		URL:          string(upstream.URL),
+	}
+
+	if upstream.HTTPConfig != nil {
+		if basicAuth := upstream.HTTPConfig.BasicAuth; basicAuth != nil {
+			webhook.Username = basicAuth.Username
+			webhook.Password = string(basicAuth.Password)
+		}
+		if authorization := upstream.HTTPConfig.Authorization; authorization != nil {
+			webhook.BearerToken = string(authorization.Credentials)
+		}
+	}
+
+	return webhook, nil
+}

pkg/types/alertmanagertypes/channelconfig.go

@@ -3,8 +3,6 @@ package alertmanagertypes
 import (
 	"bytes"
 	"encoding/json"
-	"maps"
-	"net/textproto"
 	"net/url"
 	"reflect"
 	"slices"
@@ -14,7 +12,6 @@ import (
 	"github.com/SigNoz/signoz/pkg/valuer"
 	"github.com/prometheus/alertmanager/config"
 	commoncfg "github.com/prometheus/common/config"
-	"github.com/prometheus/common/model"
 	"github.com/swaggest/jsonschema-go"
 )
 
@@ -205,808 +202,6 @@ type ChannelSpec interface {
 	toUndefaultedReceiver(displayName string) (*Receiver, error)
 }
 
-type ChannelSlackConfig struct {
-	SendResolved *bool                        `json:"sendResolved,omitempty"`
-	APIURL       string                       `json:"apiUrl" required:"true" format:"password"`
-	Channel      string                       `json:"channel"`
-	Title        valuer.UnsetOrNonEmptyString `json:"title"`
-	Text         valuer.UnsetOrNonEmptyString `json:"text"`
-	Color        valuer.UnsetOrNonEmptyString `json:"color"`
-	TitleLink    valuer.UnsetOrNonEmptyString `json:"titleLink"`
-	Pretext      valuer.UnsetOrNonEmptyString `json:"pretext"`
-	Fallback     valuer.UnsetOrNonEmptyString `json:"fallback"`
-	Footer       valuer.UnsetOrNonEmptyString `json:"footer"`
-	Fields       []ChannelSlackField          `json:"fields,omitempty"`
-	Actions      []ChannelSlackAction         `json:"actions,omitempty"`
-}
-
-type ChannelSlackField struct {
-	Title string `json:"title" required:"true"`
-	Value string `json:"value" required:"true"`
-	Short *bool  `json:"short,omitempty"`
-}
-
-// ChannelSlackAction is a link button when URL is set, otherwise a message
-// button that needs Name. Upstream clears whichever side is not in use.
-type ChannelSlackAction struct {
-	Type    string                    `json:"type" required:"true"`
-	Text    string                    `json:"text" required:"true"`
-	URL     string                    `json:"url"`
-	Style   string                    `json:"style"`
-	Name    string                    `json:"name"`
-	Value   string                    `json:"value"`
-	Confirm *ChannelSlackConfirmation `json:"confirm,omitempty"`
-}
-
-type ChannelSlackConfirmation struct {
-	Text        string `json:"text" required:"true"`
-	Title       string `json:"title"`
-	OkText      string `json:"okText"`
-	DismissText string `json:"dismissText"`
-}
-
-func (c ChannelSlackConfig) Validate() error {
-	if c.APIURL == "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.apiUrl is required for a slack channel")
-	}
-
-	for i, field := range c.Fields {
-		if field.Title == "" || field.Value == "" {
-			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.fields[%d] requires title and value", i)
-		}
-	}
-
-	for i, action := range c.Actions {
-		if action.Type == "" || action.Text == "" {
-			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.actions[%d] requires type and text", i)
-		}
-		if action.URL == "" && action.Name == "" {
-			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.actions[%d] requires url or name", i)
-		}
-		if action.Confirm != nil && action.Confirm.Text == "" {
-			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.actions[%d].confirm requires text", i)
-		}
-	}
-
-	return nil
-}
-
-func (c ChannelSlackConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
-	apiURL, err := parseSecretURL(c.APIURL)
-	if err != nil {
-		return nil, err
-	}
-
-	return &Receiver{Receiver: &config.Receiver{
-		Name: displayName,
-		SlackConfigs: []*config.SlackConfig{{
-			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultSlackConfig.VSendResolved)},
-			APIURL:         apiURL,
-			Channel:        c.Channel,
-			Title:          c.Title.StringValue(),
-			Text:           c.Text.StringValue(),
-			Color:          c.Color.StringValue(),
-			TitleLink:      c.TitleLink.StringValue(),
-			Pretext:        c.Pretext.StringValue(),
-			Fallback:       c.Fallback.StringValue(),
-			Footer:         c.Footer.StringValue(),
-			Fields:         newUpstreamSlackFields(c.Fields),
-			Actions:        newUpstreamSlackActions(c.Actions),
-		}},
-	}}, nil
-}
-
-func newChannelSlackConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
-	slack := receiver.SlackConfigs[0]
-	sendResolved := slack.VSendResolved
-
-	if err := rejectAnyHTTPAuth(name, slack.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	return &ChannelSlackConfig{
-		SendResolved: &sendResolved,
-		APIURL:       formatSecretURL(slack.APIURL),
-		Channel:      slack.Channel,
-		Title:        valuer.UnsetIfEmpty(slack.Title),
-		Text:         valuer.UnsetIfEmpty(slack.Text),
-		Color:        valuer.UnsetIfEmpty(slack.Color),
-		TitleLink:    valuer.UnsetIfEmpty(slack.TitleLink),
-		Pretext:      valuer.UnsetIfEmpty(slack.Pretext),
-		Fallback:     valuer.UnsetIfEmpty(slack.Fallback),
-		Footer:       valuer.UnsetIfEmpty(slack.Footer),
-		Fields:       newChannelSlackFields(slack.Fields),
-		Actions:      newChannelSlackActions(slack.Actions),
-	}, nil
-}
-
-func newUpstreamSlackFields(fields []ChannelSlackField) []*config.SlackField {
-	if len(fields) == 0 {
-		return nil
-	}
-
-	upstream := make([]*config.SlackField, 0, len(fields))
-	for _, field := range fields {
-		upstream = append(upstream, &config.SlackField{Title: field.Title, Value: field.Value, Short: field.Short})
-	}
-
-	return upstream
-}
-
-func newChannelSlackFields(upstream []*config.SlackField) []ChannelSlackField {
-	if len(upstream) == 0 {
-		return nil
-	}
-
-	fields := make([]ChannelSlackField, 0, len(upstream))
-	for _, field := range upstream {
-		fields = append(fields, ChannelSlackField{Title: field.Title, Value: field.Value, Short: field.Short})
-	}
-
-	return fields
-}
-
-func newUpstreamSlackActions(actions []ChannelSlackAction) []*config.SlackAction {
-	if len(actions) == 0 {
-		return nil
-	}
-
-	upstream := make([]*config.SlackAction, 0, len(actions))
-	for _, action := range actions {
-		upstreamAction := &config.SlackAction{Type: action.Type, Text: action.Text, URL: action.URL, Style: action.Style, Name: action.Name, Value: action.Value}
-		if action.Confirm != nil {
-			upstreamAction.ConfirmField = &config.SlackConfirmationField{Text: action.Confirm.Text, Title: action.Confirm.Title, OkText: action.Confirm.OkText, DismissText: action.Confirm.DismissText}
-		}
-		upstream = append(upstream, upstreamAction)
-	}
-
-	return upstream
-}
-
-func newChannelSlackActions(upstream []*config.SlackAction) []ChannelSlackAction {
-	if len(upstream) == 0 {
-		return nil
-	}
-
-	actions := make([]ChannelSlackAction, 0, len(upstream))
-	for _, upstreamAction := range upstream {
-		action := ChannelSlackAction{Type: upstreamAction.Type, Text: upstreamAction.Text, URL: upstreamAction.URL, Style: upstreamAction.Style, Name: upstreamAction.Name, Value: upstreamAction.Value}
-		if upstreamAction.ConfirmField != nil {
-			action.Confirm = &ChannelSlackConfirmation{Text: upstreamAction.ConfirmField.Text, Title: upstreamAction.ConfirmField.Title, OkText: upstreamAction.ConfirmField.OkText, DismissText: upstreamAction.ConfirmField.DismissText}
-		}
-		actions = append(actions, action)
-	}
-
-	return actions
-}
-
-// ChannelEmailConfig carries no SMTP transport fields: the smarthost,
-// credentials and TLS settings come from the deployment's global config, so a
-// channel can only choose recipients and body.
-type ChannelEmailConfig struct {
-	SendResolved *bool                        `json:"sendResolved,omitempty"`
-	To           string                       `json:"to" required:"true"`
-	HTML         valuer.UnsetOrNonEmptyString `json:"html"`
-	Headers      map[string]string            `json:"headers,omitempty"`
-}
-
-func (c ChannelEmailConfig) Validate() error {
-	if c.To == "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.to is required for an email channel")
-	}
-
-	// A read reports header names as textproto canonicalizes them, turning
-	// "subject" into "Subject", so a name that is not already in that form is
-	// rejected rather than answered with one the caller never sent.
-	for _, header := range slices.Sorted(maps.Keys(c.Headers)) {
-		if canonical := textproto.CanonicalMIMEHeaderKey(header); canonical != header {
-			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.headers name %q must be written as %q", header, canonical)
-		}
-	}
-
-	return nil
-}
-
-func (c ChannelEmailConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
-	return &Receiver{Receiver: &config.Receiver{
-		Name: displayName,
-		EmailConfigs: []*config.EmailConfig{{
-			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultEmailConfig.VSendResolved)},
-			To:             c.To,
-			HTML:           c.HTML.StringValue(),
-			Headers:        c.Headers,
-		}},
-	}}, nil
-}
-
-func newChannelEmailConfigFromReceiver(_ string, receiver *Receiver) (ChannelSpec, error) {
-	email := receiver.EmailConfigs[0]
-	sendResolved := email.VSendResolved
-
-	return &ChannelEmailConfig{
-		SendResolved: &sendResolved,
-		To:           email.To,
-		HTML:         valuer.UnsetIfEmpty(email.HTML),
-		Headers:      email.Headers,
-	}, nil
-}
-
-// ChannelWebhookConfig splits apart the two authentication modes the legacy API
-// overloaded onto one password field, where an empty username meant the password
-// was really a bearer token. Username or Password may be set without the other,
-// as upstream allows, but not together with BearerToken.
-type ChannelWebhookConfig struct {
-	SendResolved *bool  `json:"sendResolved,omitempty"`
-	URL          string `json:"url" required:"true" format:"password"`
-	Username     string `json:"username"`
-	Password     string `json:"password" format:"password"`
-	BearerToken  string `json:"bearerToken" format:"password"`
-}
-
-func (c ChannelWebhookConfig) Validate() error {
-	if c.URL == "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.url is required for a webhook channel")
-	}
-
-	usesBasicAuth := c.Username != "" || c.Password != ""
-
-	if usesBasicAuth && c.BearerToken != "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.bearerToken cannot be combined with config.spec.username or config.spec.password")
-	}
-
-	return nil
-}
-
-func (c ChannelWebhookConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
-	webhook := &config.WebhookConfig{
-		NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultWebhookConfig.VSendResolved)},
-		URL:            config.SecretTemplateURL(c.URL),
-	}
-
-	// Seeded from upstream's default rather than a zero value: FollowRedirects
-	// and EnableHTTP2 marshal unconditionally, so a zero value would persist
-	// them as false and read back as a config ChannelWebhookConfig cannot represent.
-	switch {
-	case c.Username != "" || c.Password != "":
-		httpConfig := commoncfg.DefaultHTTPClientConfig
-		httpConfig.BasicAuth = &commoncfg.BasicAuth{
-			Username: c.Username,
-			Password: commoncfg.Secret(c.Password),
-		}
-		webhook.HTTPConfig = &httpConfig
-	case c.BearerToken != "":
-		httpConfig := commoncfg.DefaultHTTPClientConfig
-		httpConfig.Authorization = &commoncfg.Authorization{
-			Type:        bearerAuthorizationType,
-			Credentials: commoncfg.Secret(c.BearerToken),
-		}
-		webhook.HTTPConfig = &httpConfig
-	}
-
-	return &Receiver{Receiver: &config.Receiver{
-		Name:           displayName,
-		WebhookConfigs: []*config.WebhookConfig{webhook},
-	}}, nil
-}
-
-func newChannelWebhookConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
-	upstream := receiver.WebhookConfigs[0]
-	sendResolved := upstream.VSendResolved
-	if err := rejectUnsupportedHTTPConfig(name, upstream.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	if err := rejectHTTPBasicAuthBeyondPassword(name, upstream.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	if err := rejectHTTPAuthorizationBeyondBearer(name, upstream.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	webhook := &ChannelWebhookConfig{
-		SendResolved: &sendResolved,
-		URL:          string(upstream.URL),
-	}
-
-	if upstream.HTTPConfig != nil {
-		if basicAuth := upstream.HTTPConfig.BasicAuth; basicAuth != nil {
-			webhook.Username = basicAuth.Username
-			webhook.Password = string(basicAuth.Password)
-		}
-		if authorization := upstream.HTTPConfig.Authorization; authorization != nil {
-			webhook.BearerToken = string(authorization.Credentials)
-		}
-	}
-
-	return webhook, nil
-}
-
-type ChannelPagerdutyConfig struct {
-	SendResolved *bool                        `json:"sendResolved,omitempty"`
-	RoutingKey   string                       `json:"routingKey" required:"true" format:"password"`
-	URL          string                       `json:"url"`
-	Source       valuer.UnsetOrNonEmptyString `json:"source"`
-	Client       valuer.UnsetOrNonEmptyString `json:"client"`
-	ClientURL    valuer.UnsetOrNonEmptyString `json:"clientUrl"`
-	Description  valuer.UnsetOrNonEmptyString `json:"description"`
-	Severity     string                       `json:"severity"`
-	Component    string                       `json:"component"`
-	Group        string                       `json:"group"`
-	Class        string                       `json:"class"`
-	Details      map[string]string            `json:"details,omitempty"`
-}
-
-func (c ChannelPagerdutyConfig) Validate() error {
-	if c.RoutingKey == "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.routingKey is required for a pagerduty channel")
-	}
-
-	return nil
-}
-
-func (c ChannelPagerdutyConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
-	var eventsURL *config.URL
-	if c.URL != "" {
-		parsed, err := parseUpstreamURL(c.URL)
-		if err != nil {
-			return nil, err
-		}
-		eventsURL = parsed
-	}
-
-	return &Receiver{Receiver: &config.Receiver{
-		Name: displayName,
-		PagerdutyConfigs: []*config.PagerdutyConfig{{
-			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultPagerdutyConfig.VSendResolved)},
-			RoutingKey:     config.Secret(c.RoutingKey),
-			URL:            eventsURL,
-			Source:         c.Source.StringValue(),
-			Client:         c.Client.StringValue(),
-			ClientURL:      c.ClientURL.StringValue(),
-			Description:    c.Description.StringValue(),
-			Severity:       c.Severity,
-			Component:      c.Component,
-			Group:          c.Group,
-			Class:          c.Class,
-			Details:        newUpstreamDetails(c.Details),
-		}},
-	}}, nil
-}
-
-func newChannelPagerdutyConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
-	pagerduty := receiver.PagerdutyConfigs[0]
-	sendResolved := pagerduty.VSendResolved
-
-	if err := rejectAnyHTTPAuth(name, pagerduty.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	var details map[string]string
-	if len(pagerduty.Details) > 0 {
-		extracted, err := extractStringDetails(name, pagerduty.Details)
-		if err != nil {
-			return nil, err
-		}
-		details = extracted
-	}
-
-	return &ChannelPagerdutyConfig{
-		SendResolved: &sendResolved,
-		RoutingKey:   string(pagerduty.RoutingKey),
-		URL:          formatUpstreamURL(pagerduty.URL),
-		Source:       valuer.UnsetIfEmpty(pagerduty.Source),
-		Client:       valuer.UnsetIfEmpty(pagerduty.Client),
-		ClientURL:    valuer.UnsetIfEmpty(pagerduty.ClientURL),
-		Description:  valuer.UnsetIfEmpty(pagerduty.Description),
-		Severity:     pagerduty.Severity,
-		Component:    pagerduty.Component,
-		Group:        pagerduty.Group,
-		Class:        pagerduty.Class,
-		Details:      details,
-	}, nil
-}
-
-type ChannelOpsgenieConfig struct {
-	SendResolved *bool                        `json:"sendResolved,omitempty"`
-	APIKey       string                       `json:"apiKey" required:"true" format:"password"`
-	APIURL       string                       `json:"apiUrl"`
-	Message      valuer.UnsetOrNonEmptyString `json:"message"`
-	Description  valuer.UnsetOrNonEmptyString `json:"description"`
-	Source       valuer.UnsetOrNonEmptyString `json:"source"`
-	Details      map[string]string            `json:"details,omitempty"`
-	Priority     string                       `json:"priority"`
-}
-
-func (c ChannelOpsgenieConfig) Validate() error {
-	if c.APIKey == "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.apiKey is required for an opsgenie channel")
-	}
-
-	return nil
-}
-
-func (c ChannelOpsgenieConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
-	var apiURL *config.URL
-	if c.APIURL != "" {
-		parsed, err := parseUpstreamURL(c.APIURL)
-		if err != nil {
-			return nil, err
-		}
-		apiURL = parsed
-	}
-
-	return &Receiver{Receiver: &config.Receiver{
-		Name: displayName,
-		OpsGenieConfigs: []*config.OpsGenieConfig{{
-			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultOpsGenieConfig.VSendResolved)},
-			APIKey:         config.Secret(c.APIKey),
-			APIURL:         apiURL,
-			Message:        c.Message.StringValue(),
-			Description:    c.Description.StringValue(),
-			Source:         c.Source.StringValue(),
-			Priority:       c.Priority,
-			Details:        c.Details,
-		}},
-	}}, nil
-}
-
-func newChannelOpsgenieConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
-	opsgenie := receiver.OpsGenieConfigs[0]
-	sendResolved := opsgenie.VSendResolved
-
-	if err := rejectAnyHTTPAuth(name, opsgenie.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	return &ChannelOpsgenieConfig{
-		SendResolved: &sendResolved,
-		APIKey:       string(opsgenie.APIKey),
-		APIURL:       formatUpstreamURL(opsgenie.APIURL),
-		Message:      valuer.UnsetIfEmpty(opsgenie.Message),
-		Description:  valuer.UnsetIfEmpty(opsgenie.Description),
-		Source:       valuer.UnsetIfEmpty(opsgenie.Source),
-		Priority:     opsgenie.Priority,
-		Details:      opsgenie.Details,
-	}, nil
-}
-
-type ChannelMSTeamsConfig struct {
-	SendResolved *bool                        `json:"sendResolved,omitempty"`
-	WebhookURL   string                       `json:"webhookUrl" required:"true" format:"password"`
-	Title        valuer.UnsetOrNonEmptyString `json:"title"`
-	Text         valuer.UnsetOrNonEmptyString `json:"text"`
-}
-
-func (c ChannelMSTeamsConfig) Validate() error {
-	if c.WebhookURL == "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.webhookUrl is required for an msteams channel")
-	}
-
-	return nil
-}
-
-func (c ChannelMSTeamsConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
-	webhookURL, err := parseSecretURL(c.WebhookURL)
-	if err != nil {
-		return nil, err
-	}
-
-	return &Receiver{Receiver: &config.Receiver{
-		Name: displayName,
-		MSTeamsV2Configs: []*config.MSTeamsV2Config{{
-			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, config.DefaultMSTeamsV2Config.VSendResolved)},
-			WebhookURL:     webhookURL,
-			Title:          c.Title.StringValue(),
-			Text:           c.Text.StringValue(),
-		}},
-	}}, nil
-}
-
-func newChannelMSTeamsConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
-	msteams := receiver.MSTeamsV2Configs[0]
-	sendResolved := msteams.VSendResolved
-
-	if err := rejectAnyHTTPAuth(name, msteams.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	return &ChannelMSTeamsConfig{
-		SendResolved: &sendResolved,
-		WebhookURL:   formatSecretURL(msteams.WebhookURL),
-		Title:        valuer.UnsetIfEmpty(msteams.Title),
-		Text:         valuer.UnsetIfEmpty(msteams.Text),
-	}, nil
-}
-
-type ChannelGoogleChatConfig struct {
-	SendResolved *bool                        `json:"sendResolved,omitempty"`
-	WebhookURL   string                       `json:"webhookUrl" required:"true" format:"password"`
-	Title        valuer.UnsetOrNonEmptyString `json:"title"`
-	Text         valuer.UnsetOrNonEmptyString `json:"text"`
-}
-
-func (c ChannelGoogleChatConfig) Validate() error {
-	if c.WebhookURL == "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.webhookUrl is required for a googlechat channel")
-	}
-
-	return nil
-}
-
-func (c ChannelGoogleChatConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
-	webhookURL, err := parseSecretURL(c.WebhookURL)
-	if err != nil {
-		return nil, err
-	}
-
-	return &Receiver{
-		Receiver: &config.Receiver{Name: displayName},
-		GoogleChatConfigs: []*GoogleChatReceiverConfig{{
-			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, DefaultGoogleChatReceiverConfig.VSendResolved)},
-			WebhookURL:     webhookURL,
-			Title:          c.Title.StringValue(),
-			Text:           c.Text.StringValue(),
-		}},
-	}, nil
-}
-
-func newChannelGoogleChatConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
-	googlechat := receiver.GoogleChatConfigs[0]
-	sendResolved := googlechat.VSendResolved
-
-	if err := rejectAnyHTTPAuth(name, googlechat.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	return &ChannelGoogleChatConfig{
-		SendResolved: &sendResolved,
-		WebhookURL:   formatSecretURL(googlechat.WebhookURL),
-		Title:        valuer.UnsetIfEmpty(googlechat.Title),
-		Text:         valuer.UnsetIfEmpty(googlechat.Text),
-	}, nil
-}
-
-type ChannelJiraConfig struct {
-	SendResolved *bool `json:"sendResolved,omitempty"`
-	// Site is the Jira Cloud base URL, https://<site>.atlassian.net. Only Jira
-	// Cloud is supported; the REST base is derived from it.
-	Site              string                       `json:"site" required:"true"`
-	Project           string                       `json:"project" required:"true"`
-	IssueType         string                       `json:"issueType" required:"true"`
-	Summary           valuer.UnsetOrNonEmptyString `json:"summary"`
-	Description       valuer.UnsetOrNonEmptyString `json:"description"`
-	Priority          string                       `json:"priority"`
-	Labels            []string                     `json:"labels,omitempty"`
-	ResolveTransition string                       `json:"resolveTransition"`
-	ReopenTransition  string                       `json:"reopenTransition"`
-	ReopenDuration    valuer.UnsetOrNonEmptyString `json:"reopenDuration"`
-	WontFixResolution string                       `json:"wontFixResolution"`
-	CustomFields      map[string]any               `json:"customFields,omitempty"`
-
-	Email    string `json:"email" required:"true"`
-	APIToken string `json:"apiToken" required:"true" format:"password"`
-}
-
-func (c ChannelJiraConfig) Validate() error {
-	for _, required := range []struct {
-		value string
-		field string
-	}{
-		{c.Site, "site"},
-		{c.Project, "project"},
-		{c.IssueType, "issueType"},
-		{c.Email, "email"},
-		{c.APIToken, "apiToken"},
-	} {
-		if required.value == "" {
-			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.%s is required for a jira channel", required.field)
-		}
-	}
-
-	if !c.ReopenDuration.IsZero() {
-		reopenDuration, err := model.ParseDuration(c.ReopenDuration.StringValue())
-		if err != nil {
-			return errors.WrapInvalidInputf(err, ErrCodeAlertmanagerChannelInvalid, "config.spec.reopenDuration %q is not a valid duration", c.ReopenDuration)
-		}
-
-		// A read reports the duration as model.Duration formats it, collapsing
-		// "72h" into "3d", so a value that is not already in that form is rejected
-		// rather than answered with one the caller never sent.
-		if canonical := reopenDuration.String(); canonical != c.ReopenDuration.StringValue() {
-			return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.reopenDuration %q must be written as %q", c.ReopenDuration, canonical)
-		}
-	}
-
-	return nil
-}
-
-func (c ChannelJiraConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
-	// Seeded from upstream's default rather than a zero value: FollowRedirects
-	// and EnableHTTP2 marshal unconditionally, so a zero value would persist them
-	// as false and read back as a config ChannelJiraConfig cannot represent.
-	httpConfig := commoncfg.DefaultHTTPClientConfig
-	httpConfig.BasicAuth = &commoncfg.BasicAuth{
-		Username: c.Email,
-		Password: commoncfg.Secret(c.APIToken),
-	}
-
-	jira := &JiraReceiverConfig{
-		// JiraReceiverConfig seeds no send_resolved of its own, so unset means off.
-		NotifierConfig:    config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, false)},
-		Site:              c.Site,
-		Project:           c.Project,
-		IssueType:         c.IssueType,
-		Summary:           c.Summary.StringValue(),
-		Description:       c.Description.StringValue(),
-		Priority:          c.Priority,
-		Labels:            c.Labels,
-		ResolveTransition: c.ResolveTransition,
-		ReopenTransition:  c.ReopenTransition,
-		WontFixResolution: c.WontFixResolution,
-		CustomFields:      c.CustomFields,
-		HTTPConfig:        &httpConfig,
-	}
-
-	if !c.ReopenDuration.IsZero() {
-		reopenDuration, err := model.ParseDuration(c.ReopenDuration.StringValue())
-		if err != nil {
-			return nil, errors.WrapInvalidInputf(err, ErrCodeAlertmanagerChannelInvalid, "parse reopenDuration %q", c.ReopenDuration)
-		}
-		jira.ReopenDuration = reopenDuration
-	}
-
-	return &Receiver{
-		Receiver:    &config.Receiver{Name: displayName},
-		JiraConfigs: []*JiraReceiverConfig{jira},
-	}, nil
-}
-
-func newChannelJiraConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
-	jira := receiver.JiraConfigs[0]
-	sendResolved := jira.VSendResolved
-
-	if err := rejectUnsupportedHTTPConfig(name, jira.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	if jira.HTTPConfig != nil && jira.HTTPConfig.Authorization != nil {
-		return nil, errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "channel %q sets http_config.authorization, which is not supported", name)
-	}
-
-	if err := rejectHTTPBasicAuthBeyondPassword(name, jira.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	spec := &ChannelJiraConfig{
-		SendResolved:      &sendResolved,
-		Site:              jira.Site,
-		Project:           jira.Project,
-		IssueType:         jira.IssueType,
-		Summary:           valuer.UnsetIfEmpty(jira.Summary),
-		Description:       valuer.UnsetIfEmpty(jira.Description),
-		Priority:          jira.Priority,
-		Labels:            jira.Labels,
-		ResolveTransition: jira.ResolveTransition,
-		ReopenTransition:  jira.ReopenTransition,
-		ReopenDuration:    valuer.UnsetIfEmpty(jira.ReopenDuration.String()),
-		WontFixResolution: jira.WontFixResolution,
-		CustomFields:      jira.CustomFields,
-	}
-
-	if jira.HTTPConfig != nil && jira.HTTPConfig.BasicAuth != nil {
-		spec.Email = jira.HTTPConfig.BasicAuth.Username
-		spec.APIToken = string(jira.HTTPConfig.BasicAuth.Password)
-	}
-
-	return spec, nil
-}
-
-// ChannelJSMOpsConfig carries no API URL: JSM Ops is a single global gateway
-// keyed by the integration API key, which the notifier pins itself.
-type ChannelJSMOpsConfig struct {
-	SendResolved *bool                        `json:"sendResolved,omitempty"`
-	APIKey       string                       `json:"apiKey" required:"true" format:"password"`
-	Message      valuer.UnsetOrNonEmptyString `json:"message"`
-	Description  valuer.UnsetOrNonEmptyString `json:"description"`
-	Priority     string                       `json:"priority"`
-	// Tags is the comma-separated list JSM Ops attaches to the alert.
-	Tags valuer.UnsetOrNonEmptyString `json:"tags"`
-}
-
-func (c ChannelJSMOpsConfig) Validate() error {
-	if c.APIKey == "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.apiKey is required for a jsmops channel")
-	}
-
-	return nil
-}
-
-func (c ChannelJSMOpsConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
-	return &Receiver{
-		Receiver: &config.Receiver{Name: displayName},
-		JSMOpsConfigs: []*JSMOpsReceiverConfig{{
-			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, DefaultJSMOpsReceiverConfig.VSendResolved)},
-			APIKey:         config.Secret(c.APIKey),
-			Message:        c.Message.StringValue(),
-			Description:    c.Description.StringValue(),
-			Priority:       c.Priority,
-			Tags:           c.Tags.StringValue(),
-		}},
-	}, nil
-}
-
-func newChannelJSMOpsConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
-	jsmops := receiver.JSMOpsConfigs[0]
-	sendResolved := jsmops.VSendResolved
-
-	if err := rejectAnyHTTPAuth(name, jsmops.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	return &ChannelJSMOpsConfig{
-		SendResolved: &sendResolved,
-		APIKey:       string(jsmops.APIKey),
-		Message:      valuer.UnsetIfEmpty(jsmops.Message),
-		Description:  valuer.UnsetIfEmpty(jsmops.Description),
-		Priority:     jsmops.Priority,
-		Tags:         valuer.UnsetIfEmpty(jsmops.Tags),
-	}, nil
-}
-
-type ChannelIncidentIOConfig struct {
-	SendResolved *bool                        `json:"sendResolved,omitempty"`
-	URL          string                       `json:"url" required:"true"`
-	Token        string                       `json:"token" required:"true" format:"password"`
-	Title        valuer.UnsetOrNonEmptyString `json:"title"`
-	Description  valuer.UnsetOrNonEmptyString `json:"description"`
-	Metadata     map[string]string            `json:"metadata,omitempty"`
-}
-
-func (c ChannelIncidentIOConfig) Validate() error {
-	if c.URL == "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.url is required for an incidentio channel")
-	}
-
-	if c.Token == "" {
-		return errors.NewInvalidInputf(ErrCodeAlertmanagerChannelInvalid, "config.spec.token is required for an incidentio channel")
-	}
-
-	return nil
-}
-
-func (c ChannelIncidentIOConfig) toUndefaultedReceiver(displayName string) (*Receiver, error) {
-	return &Receiver{
-		Receiver: &config.Receiver{Name: displayName},
-		IncidentIOConfigs: []*IncidentIOReceiverConfig{{
-			NotifierConfig: config.NotifierConfig{VSendResolved: resolveSendResolved(c.SendResolved, DefaultIncidentIOReceiverConfig.VSendResolved)},
-			URL:            c.URL,
-			Token:          config.Secret(c.Token),
-			Title:          c.Title.StringValue(),
-			Description:    c.Description.StringValue(),
-			Metadata:       c.Metadata,
-		}},
-	}, nil
-}
-
-func newChannelIncidentIOConfigFromReceiver(name string, receiver *Receiver) (ChannelSpec, error) {
-	incidentio := receiver.IncidentIOConfigs[0]
-	sendResolved := incidentio.VSendResolved
-
-	if err := rejectAnyHTTPAuth(name, incidentio.HTTPConfig); err != nil {
-		return nil, err
-	}
-
-	return &ChannelIncidentIOConfig{
-		SendResolved: &sendResolved,
-		URL:          incidentio.URL,
-		Token:        string(incidentio.Token),
-		Title:        valuer.UnsetIfEmpty(incidentio.Title),
-		Description:  valuer.UnsetIfEmpty(incidentio.Description),
-		Metadata:     incidentio.Metadata,
-	}, nil
-}
-
 // ════════════════════════════════════════════════════════════════════════
 // Helpers
 // ════════════════════════════════════════════════════════════════════════

pkg/types/authtypes/token.go

@@ -258,6 +258,6 @@ type TokenStore interface {
 	// Delete a token by userID.
 	DeleteByUserID(context.Context, valuer.UUID) error
 
-	// Update last observed at by access token.
-	UpdateLastObservedAtByAccessToken(context.Context, []map[string]any) error
+	// Update last observed at of the given tokens.
+	UpdateLastObservedAt(context.Context, []*StorableToken) error
 }

tests/integration/tests/passwordauthn/09_last_observed_at.py

@@ -0,0 +1,36 @@
+import time
+from collections.abc import Callable
+from http import HTTPStatus
+
+import requests
+from sqlalchemy import sql
+
+from fixtures import types
+from fixtures.auth import USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD
+
+
+def test_last_observed_at_is_flushed(signoz: types.SigNoz, get_token: Callable[[str, str], str]) -> None:
+    """Verify the tokenizer GC persists the cached last observed at of a used token to the sql store."""
+    token = get_token(USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD)
+
+    response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v2/users/me"),
+        headers={"Authorization": f"Bearer {token}"},
+        timeout=5,
+    )
+    assert response.status_code == HTTPStatus.OK
+
+    deadline = time.time() + 30
+    while time.time() < deadline:
+        with signoz.sqlstore.conn.connect() as conn:
+            row = conn.execute(
+                sql.text("SELECT last_observed_at FROM auth_token WHERE access_token = :access_token"),
+                {"access_token": token},
+            ).fetchone()
+
+        if row is not None and row[0] is not None:
+            return
+
+        time.sleep(1)
+
+    raise AssertionError("last_observed_at was not flushed to the sql store within 30s")

tests/integration/tests/passwordauthn/conftest.py

@@ -0,0 +1,33 @@
+import pytest
+from testcontainers.core.container import Network
+
+from fixtures import types
+from fixtures.signoz import create_signoz
+
+
+@pytest.fixture(name="signoz", scope="package")
+def signoz_passwordauthn(
+    network: Network,
+    zeus: types.TestContainerDocker,
+    gateway: types.TestContainerDocker,
+    sqlstore: types.TestContainerSQL,
+    clickhouse: types.TestContainerClickhouse,
+    request: pytest.FixtureRequest,
+    pytestconfig: pytest.Config,
+) -> types.SigNoz:
+    """
+    Package-scoped fixture for SigNoz with a short tokenizer GC interval so the last observed at flush runs within a test.
+    """
+    return create_signoz(
+        network=network,
+        zeus=zeus,
+        gateway=gateway,
+        sqlstore=sqlstore,
+        clickhouse=clickhouse,
+        request=request,
+        pytestconfig=pytestconfig,
+        cache_key="signoz-passwordauthn",
+        env_overrides={
+            "SIGNOZ_TOKENIZER_OPAQUE_GC_INTERVAL": "5s",
+        },
+    )