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70 lines
2.1 KiB
70 lines
2.1 KiB
[Unit]
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Description=PostgreSQL Database Server - Initialization
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Documentation=https://hub.docker.com/_/postgres/
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After=network.target postgresql-set-major.service
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Before=postgresql-server.service
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Requires=postgresql-set-major.service
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# Only start if PostgreSQL has been configured
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ConditionPathExists=/etc/quadlets/postgresql/config.env
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# and NOT initialized
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ConditionPathExists=!/var/lib/quadlets/postgresql/.initialized
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# Start/stop this unit when the target is started/stopped
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PartOf=postgresql.target
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[Container]
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ContainerName=postgresql-init-job
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Image=docker.io/library/postgres:${PG_MAJOR}-alpine
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# Network configuration
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Network=host
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# PostgreSQL storage is specific to major version
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Environment=PGDATA=/var/lib/postgresql/${PG_MAJOR}/docker
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# Those environment variables will be injected by podman into the container
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EnvironmentFile=/etc/quadlets/postgresql/config.env
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# Use our entrypoint script to initialize the database
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Entrypoint=/usr/local/bin/init.sh
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# Set PostgreSQL command line arguments
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Exec=${POSTGRES_ARGS}
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# No need for root privileges
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User=postgres
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Group=postgres
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# UID/GID mapping to map the postgres (70) user inside the container to arbitrary user 10004 / group 10000 on the host
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UIDMap=0:1000000:70
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UIDMap=70:10004:1
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UIDMap=71:1000071:65465
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GIDMap=0:1000000:70
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GIDMap=70:10000:1
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GIDMap=71:1000071:65465
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# Avoid issues with built-in volumes being created by root
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PodmanArgs=--image-volume=ignore
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# Volume mounts
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Volume=/var/lib/quadlets/postgresql:/var/lib/postgresql:z
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Volume=/var/lib/virtiofs/data/postgresql/backup:/var/lib/postgresql/backup:z
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Volume=/etc/quadlets/postgresql/init.sh:/usr/local/bin/init.sh:z,ro
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Volume=/etc/quadlets/postgresql/init.d:/docker-entrypoint-initdb.d:z,ro
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[Service]
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Restart=no
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TimeoutStartSec=30
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# These environment variables are sourced to be used by systemd in the Exec* commands
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EnvironmentFile=/etc/quadlets/postgresql/config.env
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# This container is a job - run once to completion
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Type=oneshot
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# Mark the database as intialized
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ExecStartPost=touch /var/lib/quadlets/postgresql/.initialized
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[Install]
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WantedBy=postgresql.target
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