93 lines
3.9 KiB
YAML
93 lines
3.9 KiB
YAML
version: '3.8'
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x-postgres-env: &postgres-env
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POSTGRES_DB: bonfire_db
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POSTGRES_USER: postgres
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POSTGRES_PASSWORD_FILE: /run/secrets/postgres_password
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services:
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app:
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environment:
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<<: *postgres-env
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POSTGRES_HOST: ${STACK_NAME}_db
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secrets:
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- postgres_password
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db:
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image: ${DB_DOCKER_IMAGE:-ghcr.io/baosystems/postgis}:${DB_DOCKER_VERSION:-17-3.5}
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# give Postgres time to shut down cleanly: the Swarm default (10s) force-kills it mid-shutdown on every redeploy, which wipes the cumulative stats (pg_stat_*) that autovacuum's triggers depend on — a root cause of autovacuum never running on big tables
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stop_grace_period: 2m # NOTE: abra validates the schema before env interpolation, so this duration field can't be env-parameterized
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# static tuning defaults for deployments NOT using the postgres tuner overlay (NOTE: `compose.postgres.tune.yml` computes these from your system resources instead of hardcoding them, so please use it!)
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# Notes:
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# memory defaults are deliberately SAFE-SMALL (fit a 1 or 2GB VPS with the app co-hosted): shared_buffers is allocated at boot and maintenance_work_mem is per vacuum worker, so oversizing can prevent startup or OOM small machines — the tuner overlay right-sizes them instead (~25% / ~6% of the DB's RAM budget);
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# max_connections is deliberately low because Bonfire's Ecto pool is the connection pooler (~25-50 conns; oversizing shrinks usable work_mem);
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# jit off = measured per-query compile tax on Bonfire's many-join queries with no benefit;
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# the autovacuum settings suit Bonfire's soft-delete/append workload where default thresholds never trigger on big tables.
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command: >
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postgres
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-c max_connections=${PG_MAX_CONNECTIONS:-100}
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-c shared_buffers=${PG_SHARED_BUFFERS_MB:-256}MB
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-c effective_cache_size=${PG_EFFECTIVE_CACHE_SIZE_MB:-768}MB
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-c work_mem=${PG_WORK_MEM_MB:-16}MB
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-c maintenance_work_mem=${PG_MAINTENANCE_WORK_MEM_MB:-128}MB
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-c random_page_cost=${PG_RANDOM_PAGE_COST:-1.1}
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-c effective_io_concurrency=${PG_EFFECTIVE_IO_CONCURRENCY:-200}
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-c jit=${PG_JIT:-off}
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-c wal_compression=${PG_WAL_COMPRESSION:-lz4}
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-c default_toast_compression=${PG_TOAST_COMPRESSION:-lz4}
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-c shared_preload_libraries=${PG_PRELOAD_LIBS:-pg_stat_statements}
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-c pg_stat_statements.track=all
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-c track_io_timing=on
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-c track_activity_query_size=16384
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-c autovacuum_vacuum_scale_factor=0.05
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-c autovacuum_vacuum_insert_scale_factor=0.05
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-c autovacuum_vacuum_cost_limit=1000
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-c log_autovacuum_min_duration=0
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-c log_min_duration_statement=${PG_LOG_MIN_DURATION_STATEMENT:-2000}
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-c log_lock_waits=on
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-c log_temp_files=0
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# -c statement_timeout=1800000
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#entrypoint: ['tail', '-f', '/dev/null'] # uncomment when the Postgres DB is corrupted and won't start
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volumes:
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- db-data:/var/lib/postgresql/data
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- type: tmpfs
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target: /dev/shm
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tmpfs:
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size: 1000000000
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# about 1 GB in bytes
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tmpfs:
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- /tmp:size=${DB_MEMORY_LIMIT:-1024}M^
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networks:
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- internal
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environment:
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<<: *postgres-env
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secrets:
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- postgres_password
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healthcheck:
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test: ["CMD-SHELL", "pg_isready", "-U", "postgres"]
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interval: 10s
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timeout: 5s
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retries: 5
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deploy:
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labels:
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backupbot.backup: ${ENABLE_BACKUPS:-true}
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backupbot.backup.pre-hook: "/pg_backup.sh backup"
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backupbot.backup.volumes.db-data.path: "backup.sql"
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backupbot.restore.post-hook: '/pg_backup.sh restore'
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configs:
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- source: pg_backup
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target: /pg_backup.sh
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mode: 0555
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volumes:
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db-data:
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configs:
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pg_backup:
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name: ${STACK_NAME}_pg_backup_${PG_BACKUP_VERSION}
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file: pg_backup.sh
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secrets:
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postgres_password:
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external: true
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name: ${STACK_NAME}_postgres_password_${SECRET_POSTGRES_PASSWORD_VERSION:-v1} |