ci(deploy): extract deploy-obs composite action

Five required, no-default inputs (incl. grafana_db_password for the #651
read-only reader role). Four named run: blocks keep the four CI log sections:
deploy configs, validate, start, assert health.

Secrets map to env: and are written via an unquoted <<EOF heredoc ('$VAR'
expands at the shell layer; a quoted delimiter would write the literal var
name and config --quiet would pass anyway). A five-key non-empty guard runs
right after the write, and chmod 600 is the final operation so the file is
never world-readable. ADR-016 absolute paths and the two-file --env-file
ordering are preserved.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Marcel
2026-06-02 19:21:28 +02:00
parent a6a8552a48
commit 0e30e5c570

View File

@@ -0,0 +1,125 @@
name: Deploy observability stack
description: >-
Deploy observability configs + secrets to /opt/familienarchiv, validate the
compose config, start the stack, and assert the five healthchecked services
are healthy. Per-environment values arrive as inputs.
inputs:
grafana_admin_password:
description: Grafana admin password (secret)
required: true
grafana_db_password:
description: Read-only grafana_reader DB role password (secret, issue #651)
required: true
glitchtip_secret_key:
description: GlitchTip Django secret key (secret)
required: true
postgres_password:
description: PostgreSQL password for the environment (secret)
required: true
postgres_host:
description: >-
Compose project + service hostname, e.g. archiv-staging-db-1. Derived
from the Compose project name and service name — a project rename
requires updating the caller's value. Plain input, not a secret.
required: true
runs:
using: composite
steps:
- name: Deploy observability configs
shell: bash
# Copies the compose file and config tree from the workspace checkout
# into /opt/familienarchiv/ — the permanent location that persists
# between CI runs. Containers started in the next step bind-mount
# from there, so a future workspace wipe cannot corrupt a running
# config file.
#
# obs-secrets.env is written fresh from Gitea secrets on every run so
# Gitea is always the single source of truth for secret rotation.
# Non-secret config lives in infra/observability/obs.env (tracked in git).
#
# secrets.* is NOT available inside a composite action, so the values
# arrive as inputs mapped to env: below and are referenced as $VAR in
# the heredoc. The delimiter MUST stay unquoted (<<EOF, not <<'EOF') so
# the shell expands $VAR — a quoted delimiter would write the literal
# string "$GRAFANA_ADMIN_PASSWORD" and `config --quiet` would still pass
# (the var is present, just wrong). Do not stage these into intermediate
# variables either, or Gitea log masking can be lost.
env:
GRAFANA_ADMIN_PASSWORD: ${{ inputs.grafana_admin_password }}
GRAFANA_DB_PASSWORD: ${{ inputs.grafana_db_password }}
GLITCHTIP_SECRET_KEY: ${{ inputs.glitchtip_secret_key }}
POSTGRES_PASSWORD: ${{ inputs.postgres_password }}
POSTGRES_HOST: ${{ inputs.postgres_host }}
run: |
rm -rf /opt/familienarchiv/infra/observability
mkdir -p /opt/familienarchiv/infra/observability
cp -r infra/observability/. /opt/familienarchiv/infra/observability/
cp docker-compose.observability.yml /opt/familienarchiv/
cat > /opt/familienarchiv/obs-secrets.env <<EOF
GRAFANA_ADMIN_PASSWORD=$GRAFANA_ADMIN_PASSWORD
GRAFANA_DB_PASSWORD=$GRAFANA_DB_PASSWORD
GLITCHTIP_SECRET_KEY=$GLITCHTIP_SECRET_KEY
POSTGRES_PASSWORD=$POSTGRES_PASSWORD
POSTGRES_HOST=$POSTGRES_HOST
EOF
# Five-key non-empty guard: a bare presence check matches an empty
# `KEY=` line, so assert each key has a value. Fail loudly on any
# missing/empty key rather than starting the stack with broken auth.
for key in GRAFANA_ADMIN_PASSWORD GRAFANA_DB_PASSWORD GLITCHTIP_SECRET_KEY POSTGRES_PASSWORD POSTGRES_HOST; do
grep -Eq "^${key}=.+" /opt/familienarchiv/obs-secrets.env \
|| { echo "::error::obs-secrets.env missing or empty: ${key}"; exit 1; }
done
# chmod 600 MUST be the final operation: the ordering is the security
# property — there is no window where the file is world-readable.
chmod 600 /opt/familienarchiv/obs-secrets.env
- name: Validate observability compose config
shell: bash
# Dry-run: resolves all variable substitutions and reports any missing
# required keys before containers start. Catches undefined variables and
# YAML errors in config files updated by the previous step.
# --env-file order: obs.env first (git-tracked defaults), obs-secrets.env
# second (CI-written secrets). Later files win on duplicate keys, so
# obs-secrets.env overrides POSTGRES_HOST set in obs.env.
run: |
docker compose \
-f /opt/familienarchiv/docker-compose.observability.yml \
--env-file /opt/familienarchiv/infra/observability/obs.env \
--env-file /opt/familienarchiv/obs-secrets.env \
config --quiet
- name: Start observability stack
shell: bash
# Runs with absolute paths so bind mounts resolve to stable host paths
# that survive workspace wipes between runs (see ADR-016).
# Non-secret config from obs.env (git-tracked); secrets from obs-secrets.env
# (written fresh from Gitea secrets above). --env-file order: obs.env first,
# obs-secrets.env second — later file wins on duplicate keys.
run: |
docker compose \
-f /opt/familienarchiv/docker-compose.observability.yml \
--env-file /opt/familienarchiv/infra/observability/obs.env \
--env-file /opt/familienarchiv/obs-secrets.env \
up -d --wait --remove-orphans
- name: Assert observability stack health
shell: bash
# docker compose up --wait covers services WITH healthcheck directives only.
# obs-promtail, obs-cadvisor, obs-node-exporter, and obs-glitchtip-worker have
# no healthcheck — they are considered "started" as soon as the process runs.
# This step explicitly asserts the five healthchecked critical services are
# healthy before the smoke test proceeds.
run: |
set -e
unhealthy=""
for svc in obs-loki obs-prometheus obs-grafana obs-tempo obs-glitchtip; do
status=$(docker inspect "$svc" --format '{{.State.Health.Status}}' 2>/dev/null || echo "missing")
if [ "$status" != "healthy" ]; then
echo "::error::$svc is not healthy (status: $status)"
unhealthy="$unhealthy $svc"
fi
done
[ -z "$unhealthy" ] || exit 1
echo "All critical observability services are healthy"