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compose-farm/tests
Bas Nijholt fd1b04297e
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fix: --host filter now limits multi-host stack operations to single host (#175)
* fix: --host filter now limits multi-host stack operations to single host

Previously, when using `-H host` with a multi-host stack like `glances: all`,
the command would find the stack (correct) but then operate on ALL hosts for
that stack (incorrect). For example, `cf down -H nas` with `glances` would
stop glances on all 5 hosts instead of just nas.

Now, when `--host` is specified:
- `cf down -H nas` only stops stacks on nas, including only the nas instance
  of multi-host stacks
- `cf up -H nas` only starts stacks on nas (skips migration logic since
  host is explicitly specified)

Added tests for the new filter_host behavior in both executor and CLI.

* fix: Apply filter_host to logs and ps commands as well

Same bug as up/down: when using `-H host` with multi-host stacks,
logs and ps would show results from all hosts instead of just the
filtered host.

* fix: Don't remove multi-host stacks from state when host-filtered

When using `-H host` with a multi-host stack, we only stop one instance.
The stack is still running on other hosts, so we shouldn't remove it
from state entirely.

This prevents issues where:
- `cf apply` would try to re-start the stack
- `cf ps` would show incorrect running status
- Orphan detection would be confused

Added tests to verify state is preserved for host-filtered multi-host
operations and removed for full stack operations.

* refactor: Introduce StackSelection dataclass for cleaner context passing

Instead of passing filter_host separately through multiple layers,
bundle the selection context into a StackSelection dataclass:

- stacks: list of selected stack names
- config: the loaded Config
- host_filter: optional host filter from -H flag

This provides:
1. Cleaner APIs - context travels together instead of being scattered
2. is_instance_level() method - encapsulates the check for whether
   this is an instance-level operation (host-filtered multi-host stack)
3. Future extensibility - can add more context (dry_run, verbose, etc.)

Updated all callers of get_stacks() to use the new return type.

* Revert "refactor: Introduce StackSelection dataclass for cleaner context passing"

This reverts commit e6e9eed93e.

* feat: Proper per-host state tracking for multi-host stacks

- Add `remove_stack_host()` to remove a single host from a multi-host stack's state
- Add `add_stack_host()` to add a single host to a stack's state
- Update `down` command to use `remove_stack_host` for host-filtered multi-host stacks
- Update `up` command to use `add_stack_host` for host-filtered operations

This ensures the state file accurately reflects which hosts each stack is running on,
rather than just tracking if it's running at all.

* fix: Use set comparisons for host list tests

Host lists may be reordered during YAML save/load, so test for
set equality rather than list equality.

* refactor: Merge remove_stack_host into remove_stack as optional parameter

Instead of a separate function, `remove_stack` now takes an optional
`host` parameter. When specified, it removes only that host from
multi-host stacks. This reduces API surface and follows the existing
pattern.

* fix: Restore deterministic host list sorting and add filter_host test

- Restore sorting of list values in _sorted_dict for consistent YAML output
- Add test for logs --host passing filter_host to run_on_stacks
2026-02-01 13:43:17 -08:00
..
2025-12-11 09:28:54 -08:00