77 lines
2.8 KiB
YAML
77 lines
2.8 KiB
YAML
# Stack for Portainer. Everything it needs lives in the image, so it can be
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# deployed by pasting this file — no checkout of the repository on the server.
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#
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# Environment variables to set in the Portainer stack:
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# IMAGE registry.tibiscuit.ch/vm-selector:latest
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# POSTGRES_PASSWORD anything, it never leaves the internal network
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# LIBVIRT_GID the host's libvirt group id, from:
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# getent group libvirt | cut -d: -f3
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# APP_PORT host port for the reverse proxy to point at (default 3010)
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services:
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db:
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image: postgres:18.3-alpine
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restart: unless-stopped
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environment:
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POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?set POSTGRES_PASSWORD in the stack}
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POSTGRES_DB: vmselector
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volumes:
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# Postgres 18 moved PGDATA to /var/lib/postgresql/18/docker and its declared
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# VOLUME to /var/lib/postgresql. Mounting the pre-18 /var/lib/postgresql/data
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# leaves the real data outside the volume, and trips the entrypoint.
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- db_data:/var/lib/postgresql
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healthcheck:
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test: ['CMD-SHELL', 'pg_isready -U postgres -d vmselector']
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interval: 5s
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timeout: 5s
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retries: 10
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# initdb runs on the very first boot: do not count failures before it is done
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start_period: 30s
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networks: [internal]
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# Runs once per deployment, before the app: applies any new migration, then exits
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migrate:
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image: ${IMAGE:?set IMAGE in the stack}
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restart: 'no'
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entrypoint:
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['dbmate', '--migrations-dir', '/app/db/migrations', '--no-dump-schema', 'up']
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environment:
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DATABASE_URL: postgres://postgres:${POSTGRES_PASSWORD}@db:5432/vmselector?sslmode=disable
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depends_on:
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db:
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condition: service_healthy
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networks: [internal]
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app:
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image: ${IMAGE:?set IMAGE in the stack}
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restart: unless-stopped
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ports:
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- '${APP_PORT:-3010}:3000'
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environment:
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APP__POSTGRES__HOST: db
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APP__POSTGRES__PASSWORD: ${POSTGRES_PASSWORD}
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APP__POSTGRES__NAME: vmselector
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APP__VM__DRIVER: libvirt
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# The socket bind-mounted below, not ssh: the app runs on the same host
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APP__VM__URI: qemu:///system
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volumes:
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# The whole directory, not a single socket: depending on whether the host
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# runs the monolithic libvirtd or the split daemons, the app needs
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# libvirt-sock or virtqemud-sock.
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- /var/run/libvirt:/var/run/libvirt
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# Reaching that socket requires being in the host's libvirt group. Without
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# this the socket is visible and every call is denied.
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group_add:
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- '${LIBVIRT_GID:?see the header of this file}'
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depends_on:
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db:
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condition: service_healthy
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migrate:
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condition: service_completed_successfully
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networks: [internal]
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volumes:
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db_data:
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networks:
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internal:
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