New roles/sys-svc-container/templates/env.j2 sets TZ={{ HOST_TIMEZONE }} and LANG=C.UTF-8. Every role env.j2 includes it at the top; it renders via stack_host_template, the same engine that resolves the includes in compose.yml.j2, so it works in both compose and swarm. TZ/LANG are removed from the individual role env.j2 so each value stays single-source.
New lint tests/lint/ansible/test_env_base_include.py verifies every role env.j2 includes the base and never re-sets a base-owned key (keys derived from the base file).
mattermost and gitea meta/volumes.yml drop the /etc/timezone host-path bind: swarm hard-rejects a task whose bind source is missing on the node (Debian-trixie nodes have no /etc/timezone). TZ now comes from the base env. /etc/localtime bind also dropped; the container timezone follows TZ.
Non-directive comments were removed from the touched env.j2 (banners, restatements, reference URLs, narration) so the changed files pass the comment-lint; only tool directives remain.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
docker stack deploy does not strip quotes from env_file values (unlike
docker compose), so the literal `"..."` characters reach the container's
environment. POSTGRES_INITDB_ARGS is interpreted by initdb as a shell-
parsed string and tolerates unquoted spaces here because the line is
read whole. Removing the wrapping quotes makes the value identical
across compose and swarm and avoids confusing initdb in the swarm path.
kevinveenbirkenbachandClaude Opus 4.8