The central Elasticsearch, Zammad's Elasticsearch and Magento's
OpenSearch ran with a literal heap beside a mem_limit four times its
size: 1g in 4g, 512m in 2g and 512m in 2g. The heap is now half of the
limit through lookup('service_memory_mb'), which makes it 2048, 1024
and 1024 MiB and lets it follow the limit when that changes.
Xms equals Xmx, so these containers hold that much more memory from
the start.
Zammad's memcached size and Magento's PHP_MEMORY_LIMIT take the same
lookup and keep their values, 256 and 768M.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
start_interval is the cadence while start_period runs, and only while it runs.
Once the window closes the probe falls back to interval, so a service that
becomes ready just after it pays a whole tick anyway and the cadence never
reached it. Six of the seven flavors were shaped that way, Curl worst: a thirty
second window against a one minute interval.
Measured across 151 converge waits in four job logs, 63 sit exactly on a tick
boundary, 36 in the thirty second step and 27 in the sixty second one.
Attributed by application, web-app-seaweedfs is the largest at 1501s over
sixteen waits with a median of 57.7s: it probes with curl and fell straight into
the gap. web-app-zammad probes with connect, whose window is fifteen minutes,
and its 154s median is real boot time with nothing to recover.
So the window moves to ten minutes and the steady state interval to two, and the
flavor overrides that sat below them go: Curl, Wget and Connect lose interval
1m, Http its twenty second window, Nc its ten. Connect keeps fifteen minutes.
Neither number costs anything while a container works. start_period delays
nothing, it only stops failures counting, and interval no longer touches
convergence at all since that hangs on the window alone; it is steady state
load, which drops from 120 probes an hour per service to 30.
Forty six role files follow. Twenty seven declarations go that repeat the new
default or undercut it, an undercut window being the defect itself. Eight
windows longer than ten minutes keep their value and now say why. The literal
blocks and the three Dockerfiles this repository builds spell every timing out,
because outside the lookup an omission takes docker's value and not the
platform's.
A fourth lint rule keeps the shape: start_period must outlast one interval,
checked against the effective values, so raising interval without the window
cannot quietly bring the cliff back.
Two faults in the lint surfaced while building it and are fixed here. It
compared timings as strings, so 600s and 10m read as different values, and it
matched the healthcheck key exactly, so a line carrying a trailing nocheck was
skipped whole, which is how the two swarm-init partials went unexamined.
One regression, bounded. A container that starts and never turns healthy is
neither rejected nor errored, so stack_ready.sh only calls it fatal after three
killed tasks, and each cycle now spans the longer window. That reaches twenty
minutes rather than six, capped there by swarm_stack_converge_retries at 600
with a two second delay, and it lands only on runs that were failing anyway.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
A healthcheck written outside the container_healthcheck lookup inherits nothing
from utils/docker/healthcheck, and docker offers nowhere to put a replacement.
daemon.json carries storage, logging, DNS, registries and runtimes, and no
health key at all, so an omitted timing lands on docker's own value rather than
the platform's. The two disagree where it matters most: docker starts a
container with no start period, which leaves start_interval no window to act in.
That is why the hand-written blocks never gained the cadence.
The three images this repository builds itself now carry it. openldap and
postgres also drop to the platform interval, and bluesky gains the start window
it never had:
svc-db-openldap/files/Dockerfile --interval=30s ... --start-interval=5s
svc-db-postgres/templates/Dockerfile.j2 --interval=30s ... --start-interval=5s
web-app-bluesky/.../Dockerfile --start-period=30s --start-interval=5s
Six literal blocks move to the platform interval as well: magento, redis,
elasticsearch, matrix and both sys-svc-rdbms partials. Since start_interval
exists, interval no longer touches convergence and is steady state load alone.
Sixteen values that stay where they are now name the mechanism that keeps them
there. Two are worth reading. web-app-kix overrides start_period and nothing
else on purpose, letting the image's own HEALTHCHECK supply test, interval,
timeout and retries; filling those in would have overwritten what upstream tuned.
The memcached and redis swarm-init partials probe every second and deliberately
run with no start window, which is why start_interval is absent rather than
forgotten.
The rest name their probe: occ boots the whole Nextcloud stack, tor re-parses
its torrc instead of asking a running service, opensearch is still forming a
cluster, matrix waits on a file another step writes to a share.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
42ebd9ea71 gave the healthcheck SPOT start_interval, the cadence docker uses
while start_period is still running. A block a template writes out itself
bypasses the SPOT and never gained it. Measured across the repository: 46 such
blocks, 40 of them already carrying start_period, not one carrying
start_interval.
Without it a probe fires only every interval, so a service ready after two
seconds is reported healthy at the next tick and a stack converges no faster
than its coarsest quantisation. That lands in sys-svc-compose's swarm converge
wait, 1551.7s per CI job over 38 stack deploys.
Twenty five of the blocks move into meta/services.yml and render through
container_healthcheck. Each keeps an explicit test rather than picking a flavor:
a flavor would replace the command instead of carrying it across.
The move is lossless by construction. probes.py block() writes
overrides.get(key, default) for interval, timeout, retries, start_period and
start_interval, so a declaration repeating the literal values renders the same
block plus the missing cadence. Checked per block against the old values: the
only difference is start_interval 5s, nothing changed, nothing lost.
Twenty one stay literal. Seventeen interpolate a template variable, whose value
resolves in a scope meta/services.yml does not share, so moving them would be a
rewrite rather than a transcription. Four interpolate nothing and still cannot
move: svc-db-memcached and svc-db-redis probe every second in their swarm
service partial, where a 5s start cadence would report healthy later than the
block already does, and the sys-svc-rdbms and keycloak sso_proxy partials render
for the consuming role's application_id, so their declaration has no single
meta/services.yml to live in. Each carries a nocheck naming its reason.
All twenty one gain start_interval. Three also gain start_period, without which
the key does nothing at all, since it only applies while the start period runs.
That widens their failure tolerance rather than narrowing it: bluesky from 90 to
120 seconds, magento from 50 to 80, the mariadb partial from 180 to 210.
pixelfed spelled its probe as a bare string and now spells it CMD-SHELL. Docker
reads both as a shell command; only the YAML shape changes.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The mount pipeline was split across two layers: compose_volumes and
container_volumes lived as filter modules that ansible's filter loader
rejected on every start ("has no attribute 'FilterModule'", two warnings
per run), while the same-named lookups wrapped them thinly. The filter
bodies now live inside their lookups (the tor_socks precedent), the
filter files are gone, and the render tests moved next to the lookup
tests.
As lookups they see the templating context, so the application_id term
every call site passed back to its own role is gone too: both lookups
read application_id from context and fail loudly when it is missing.
107 templates and nfs_prep.yml drop the term; the calls collapse to
lookup('compose_volumes') and lookup('container_volumes', service_name).
The container_volumes call is now canonical - four leading spaces,
service_name in the service position, | indent(4) - enforced by a new
lint (test_container_volumes_call_shape). Normalizing the 85 literal
call sites surfaced that erpnext keyed its meta/volumes.yml mounts by
container name instead of compose service key, the only role to do so;
its meta now uses the service keys. wordpress's column-0 call, which
rendered its first line at top level, is indented like every other.
Template logic that only restated meta/volumes.yml is deleted: mailu fed
compose_volumes an extra_volumes dict whose eight names were looked up
from the very meta file compose_volumes reads itself; zammad's init and
railsserver extra mounts were the volumes.yml entries minus the two
services, which the meta now lists (the when-gated OIDC binds included).
Conditionality that meta cannot express stays in code, but in role-local
lookup plugins instead of template loops: matrix_bridge_mounts renders
the per-bridge registration mounts, nextcloud_extra_volumes the
feature-gated whiteboard/recording volumes (type: volume entries are
declared unconditionally by compose_volumes, so gating must happen
before it).
Parity is proven, not assumed: every mechanically rewritten template is
byte-identical to HEAD after the transformation regexes (95/95), and the
semantic roles render identically through the real functions against
HEAD's meta - zammad across six sso/tls polarities, all seven erpnext
services, mailu's top level. make test-lint passes complete.
Also: suitecrm's compose template pins container_extra_hosts with
host_alias (the SOCKS proxy URL host.docker.internal never resolved in
compose+tor), and the five disabled mautrix bridge addons use the
empty-default config lookup so templating the applications dict stops
emitting 125 errors per batch in every CI job.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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>
Every compose.yml.j2 now declares services as '{{ service_name }}:' with
its '{% set %}' knobs on two-space lines above the key, includes at four
spaces and if/for tags aligned to the content they wrap. The layout
renders correctly because stack_host_template enables lstrip_blocks for
compose.yml.j2; indent(4, True) in the container base and '{%+' guards
in whitespace-sensitive scalars keep the shared fragments identical
under both render modes. A new lint test enforces the skeleton.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Take the host IP as an optional third element of each term
([service, protocol, host_ip]) instead of an ip= kwarg, and build the whole
ports: block from declared ports.local/public (host) + ports.internal
(container). Convert every compose template across 84 roles, folding the
remaining raw var/numeric/specific-ip mappings (including mailu's per-interface
mail ports bound to MAILU_IP4_PUBLIC). Multi-term calls render one term per line.
Add the compose-ports-must-use-container-ports lint: it forbids any raw
"<host>:<published>:<container>" publish item under a ports: block and requires
every term to declare ports.internal. Remove
tests/lint/roles/test_swarm_internal_ports.py, now subsumed.
Fix a container_depends_on rendering regression. The lookup self-indented
(default indent=4), so the added 4-space placement + | indent(4) triple-indented
the block. Flip the lookup default to column 0 (consistent with
container_networks), make every call use the 4-space + | indent(4) form, and add
a lint enforcing it.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Shared single-host engine roles consumed via lookup('engine', ...), mirroring the central postgres/mariadb pattern: meta/services flags, overlay topology in meta/server, compose templates, per-consumer provisioning in 02_init. Lets apps drop their embedded sidecars and become unpinned/NFS-shareable in swarm.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5.5