[Unit]
Description=Docker prune for Gitea runner resources

[Service]
Type=oneshot
Environment=DOCKER_HOST=unix:///run/user/{{ gitea_runner_uid }}/docker.sock
Environment=XDG_RUNTIME_DIR=/run/user/{{ gitea_runner_uid }}
# Force-remove stale containers (including running ones) left behind by failed
# molecule tests. "docker container prune -f" only removes stopped containers,
# so running containers from crashed/interrupted CI jobs accumulate indefinitely,
# consuming disk and memory. We stop+rm everything first, then prune the rest.
# Exclude CI job containers (name starts with GITEA-ACTIONS-TASK) — removing
# them kills the active CI job and causes "RWLayer is unexpectedly nil" errors.
# Only remove containers older than 1 hour (grep for "hour/day/week/month/year
# ago" in RunningFor) to avoid killing molecule test containers that CI jobs
# are actively using.
ExecStart=/bin/sh -c 'docker ps -a --format "{% raw %}{{.ID}} {{.Names}} {{.RunningFor}}{% endraw %}" 2>/dev/null | grep -v "GITEA-ACTIONS-TASK" | grep -E "(hour|day|week|month|year)s? ago" | awk "{print $1}" | xargs -r docker rm -f 2>/dev/null || true'
ExecStart=/usr/bin/docker system prune -af --filter "until={{ gitea_runner_prune_until }}" --volumes
# Prune networks older than the prune-until threshold to avoid removing
# networks that molecule tests are actively creating (e.g. 'traefik' network
# created during molecule create phase before containers are attached).
ExecStart=/usr/bin/docker network prune -f --filter "until={{ gitea_runner_prune_until }}"
ExecStart=/usr/bin/docker builder prune -f