magnusandClaude Opus 4.6
a307141068
pg_basebackup -Xs copies WAL segments to the backup dir, causing the archive_command to fail on those pre-existing files and block all subsequent archiving. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
52 lines
1.4 KiB
YAML
52 lines
1.4 KiB
YAML
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services:
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postgres-db:
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image: postgres:18
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container_name: postgres-db
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restart: unless-stopped
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environment:
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POSTGRES_USER: ${POSTGRES_USER}
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POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
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POSTGRES_DB: ${POSTGRES_DB}
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ports:
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- "${PGPORT}:5432"
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volumes:
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- postgres_data:/var/lib/postgresql
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- /data/backup/postgres/wal:/backup/wal
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- ./init-replication-hba.sh:/docker-entrypoint-initdb.d/init-replication-hba.sh:ro
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command:
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- postgres
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- -c
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- wal_level=replica
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- -c
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- archive_mode=on
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- -c
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- archive_command=test -f /backup/wal/%f || cp %p /backup/wal/%f
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postgres-backup:
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image: postgres:18
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container_name: postgres-backup
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restart: unless-stopped
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depends_on:
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- postgres-db
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environment:
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POSTGRES_USER: ${POSTGRES_USER}
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PGPASSWORD: ${POSTGRES_PASSWORD}
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volumes:
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- /data/backup/postgres:/backup
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entrypoint: ["/bin/bash", "-c"]
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command:
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- |
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mkdir -p /backup/wal /backup/full
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chown 999:999 /backup/wal
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while true; do
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STAMP=$$(date +%Y-%m-%d_%H-%M-%S)
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echo "Starting full backup: full_$$STAMP"
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pg_basebackup -h postgres-db -U "$$POSTGRES_USER" -D "/backup/full/full_$$STAMP" -Fp -Xs -P
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echo "Full backup complete: full_$$STAMP"
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sleep 604800
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done
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volumes:
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postgres_data:
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