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097fb4d819
There have been a number of tickets in the past - most recently #7061 - covering the fact that Dokku doesn't clean up disk utilization. The underlying issue is that Docker uses build cache that cannot be cleaned up in a targeted way - and usually doesn't even respect the builder gc settings in a way that makes sense. In fact, the computed disk space does not line up with actual disk utilization, causing it to be a mystery to anyone investigating the underlying problem. This change introduces a cron-based mechanism that cleans up disk once a day. Cleaning up more often would potentially cause issues during a build if for some reason the prune and an app deploy happened at the same time - its not clear if there is a lock on build cache usage - so cleaning up after hours once a day is a decent tradeoff. In the future, this setting may be modifiable, but it works well for now. Closes #7061
52 lines
1.2 KiB
Bash
Executable File
52 lines
1.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eo pipefail
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[[ $DOKKU_TRACE ]] && set -x
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trigger-builder-install-prune() {
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declare desc="builder install plugin trigger"
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declare trigger="install"
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if [[ $(systemctl 2>/dev/null) =~ -\.mount ]]; then
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cat <<EOF >/etc/systemd/system/docker-builder-prune.service
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[Unit]
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Description=Docker builder prune service
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Requires=docker.service
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After=docker.service
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[Service]
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Type=oneshot
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User=$DOKKU_SYSTEM_USER
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ExecStart=$DOCKER_BIN builder prune
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[Install]
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WantedBy=docker.service
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EOF
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cat <<EOF >/etc/systemd/system/docker-builder-prune.timer
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[Unit]
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Description=Run docker-builder-prune.service every day at 4:05am
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[Timer]
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OnCalendar=Mon..Sun 04:05
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Persistent=true
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[Install]
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WantedBy=timers.target
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EOF
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if command -v systemctl &>/dev/null; then
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systemctl --quiet reenable docker-builder-prune
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systemctl --quiet enable docker-builder-prune.timer
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systemctl --quiet start docker-builder-prune.timer
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fi
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else
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cat <<EOF >/etc/cron.d/docker-builder-prune
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PATH=/usr/local/bin:/usr/bin:/bin
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SHELL=/bin/bash
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5 4 * * * $DOKKU_SYSTEM_USER $DOCKER_BIN builder prune >>/var/log/dokku/builder-prune.log 2>&1
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EOF
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fi
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}
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trigger-builder-install-prune "$@"
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