initial commit

fluxer_devops/postgres/compose.yaml

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+services:
+  postgres:
+    image: postgres:17-alpine
+    hostname: postgres
+    environment:
+      - POSTGRES_DB=fluxer
+      - POSTGRES_USER=fluxer
+      - POSTGRES_PASSWORD_FILE=/run/secrets/postgres_password
+    secrets:
+      - postgres_password
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+      - ./conf/postgresql.conf:/etc/postgresql/postgresql.conf
+    command: postgres -c config_file=/etc/postgresql/postgresql.conf
+    networks:
+      - fluxer-shared
+    ports:
+      - '5432:5432'
+    deploy:
+      replicas: 1
+      restart_policy:
+        condition: on-failure
+        delay: 10s
+        max_attempts: 3
+      resources:
+        limits:
+          cpus: '4'
+          memory: 16G
+        reservations:
+          cpus: '2'
+          memory: 8G
+    healthcheck:
+      test: ['CMD-SHELL', 'pg_isready -U fluxer -d fluxer']
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 30s
+    shm_size: 2g
+
+networks:
+  fluxer-shared:
+    external: true
+
+volumes:
+  postgres_data:
+    driver: local
+
+secrets:
+  postgres_password:
+    external: true

fluxer_devops/postgres/conf/postgresql.conf

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+listen_addresses = '*'
+max_connections = 200
+superuser_reserved_connections = 3
+
+shared_buffers = 4GB
+effective_cache_size = 12GB
+maintenance_work_mem = 1GB
+work_mem = 20MB
+
+checkpoint_timeout = 15min
+checkpoint_completion_target = 0.9
+max_wal_size = 4GB
+min_wal_size = 1GB
+
+random_page_cost = 1.1
+effective_io_concurrency = 200
+
+wal_buffers = 16MB
+wal_compression = on
+wal_level = replica
+max_wal_senders = 3
+
+logging_collector = on
+log_directory = 'log'
+log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'
+log_rotation_age = 1d
+log_rotation_size = 100MB
+log_line_prefix = '%t [%p]: [%l-1] user=%u,db=%d,app=%a,client=%h '
+log_checkpoints = on
+log_connections = on
+log_disconnections = on
+log_duration = off
+log_lock_waits = on
+log_statement = 'none'
+log_temp_files = 0
+log_min_duration_statement = 1000
+
+autovacuum = on
+autovacuum_max_workers = 3
+autovacuum_naptime = 30s
+
+shared_preload_libraries = 'pg_stat_statements'
+track_io_timing = on
+track_functions = all
+
+pg_stat_statements.max = 10000
+pg_stat_statements.track = all
+
+default_statistics_target = 100
+max_parallel_workers_per_gather = 2
+max_parallel_workers = 4
+max_worker_processes = 4
+
+datestyle = 'iso, mdy'
+timezone = 'UTC'
+lc_messages = 'en_US.utf8'
+lc_monetary = 'en_US.utf8'
+lc_numeric = 'en_US.utf8'
+lc_time = 'en_US.utf8'
+default_text_search_config = 'pg_catalog.english'