kevinveenbirkenbachandClaude Opus 5.5 2ceba492b8 fix(web-app-zammad): render the search precheck service in compose only ...

In swarm, docker stack deploy ignores depends_on, so the precheck
service and every init replica ran search_allocation_precheck.sh at the
same time. They shared one probe index: one invocation's PUT could fail
the shards_acknowledged check because another had created the index
first, and either one's cleanup could delete the other's probe. The
init service carries no replica override, so compose_replicas gives it
one task per host in the application group and the collision also
happens between init replicas.

A failing precheck task also never reached has_fatal_task in
stack_ready.sh: with restart_policy none it records a single error,
while has_fatal_task needs three. stack_ready.sh then kept answering
"not converged" until the handler ran out of retries. And a Running
init task counts as converged through running_current_spec, so the
swarm deploy never depended on init failing; the role's "wait for
Zammad init" task is what stops it.

The probe index now carries the container's hostname, which docker
sets to the container id, so concurrent invocations no longer share an
index. compose.yml.j2 renders the precheck service, and init's
service_completed_successfully dependency on it, only outside swarm.
Compose keeps its fast stop on a refusal; in swarm, init runs the same
check in front of zammad-init, a refusal leaves Zammad unseeded, the
wait for Zammad init fails the deploy, and the init service logs carry
the allocation explanation.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

2026-10-18 12:33:54 +02:00

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fix(web-app-zammad): render the search precheck service in compose only

2026-10-18 12:33:54 +02:00

__init__.py

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