[prefecthq] docker-compose.yml for launching it #use-case 6 automation!

docker-compose.yml

version: "3.5"
# Features driving version requirement
# - networks.name                 3.5
# - healthcheck.start_period      2.3
# - healthcheck                   2.1

services:
  # PostgreSQL: the backing database which stores flow metadata
  postgres:
    image: "postgres:14"  # JSONB Subscripting is avail. in PG14!
    ports:
      - "127.0.0.1:${POSTGRES_HOST_PORT:-5432}:5432"
    environment:
      POSTGRES_USER: ${POSTGRES_USER}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
      POSTGRES_DB: ${POSTGRES_DB}
    volumes:
      - ${POSTGRES_DATA_PATH}:/var/lib/postgresql/data
    networks:
      - prefect-server
    command:
      - "postgres"
      # explicitly set max connections
      - "-c"
      - "max_connections=150"
    healthcheck:
      test: pg_isready -q -d $${POSTGRES_DB} -U $${POSTGRES_USER} || exit 1
      interval: 10s
      timeout: 2s
      retries: 60
      start_period: 2s
    restart: always

  # Hasura: automatically generates a GraphQL schema from Postgres, provides most of the 'query' API
  hasura:
    image: "hasura/graphql-engine:v2.1.1"
    ports:
      - "127.0.0.1:${HASURA_HOST_PORT:-3000}:3000"
    command: "graphql-engine serve"
    environment:
      HASURA_GRAPHQL_DATABASE_URL: ${DB_CONNECTION_URL}
      HASURA_GRAPHQL_ENABLE_CONSOLE: "true"
      HASURA_GRAPHQL_SERVER_PORT: "3000"
      HASURA_GRAPHQL_QUERY_PLAN_CACHE_SIZE: 100
      HASURA_GRAPHQL_LOG_LEVEL: "warn"
      HASURA_GRAPHQL_V1_BOOLEAN_NULL_COLLAPSE: "true"
    networks:
      - prefect-server
    healthcheck:
      test: wget -O - http://hasura:$${HASURA_GRAPHQL_SERVER_PORT}/healthz &>/dev/null || exit 1
      interval: 10s
      timeout: 2s
      retries: 60
      start_period: 1s
    restart: always
    depends_on:
      - postgres

  # GraphQL: provides most of the 'mutation' GraphQL API
  graphql:
    image: "prefecthq/server:${PREFECT_SERVER_TAG:-latest}"
    ports:
      - "127.0.0.1:${GRAPHQL_HOST_PORT:-4201}:4201"
    command: bash -c "${PREFECT_SERVER_DB_CMD} && python src/prefect_server/services/graphql/server.py"
    environment:
      PREFECT_SERVER_DB_CMD: ${PREFECT_SERVER_DB_CMD:-"echo 'DATABASE MIGRATIONS SKIPPED'"}
      PREFECT_SERVER__DATABASE__CONNECTION_URL: ${DB_CONNECTION_URL}
      PREFECT_SERVER__HASURA__ADMIN_SECRET: ${PREFECT_SERVER__HASURA__ADMIN_SECRET:-hasura-secret-admin-secret}
      PREFECT_SERVER__HASURA__HOST: hasura
      PREFECT_CORE_VERSION: ${PREFECT_CORE_VERSION:-"UNKNOWN"}
    networks:
      - prefect-server
    healthcheck:
      test: curl --fail --silent "http://graphql:4201/health" &> /dev/null || exit 1
      interval: 20s
      timeout: 2s
      retries: 60
      start_period: 1s
    restart: always
    depends_on:
      - hasura

  # Towel: runs a collection of simple services
  towel:
    image: "prefecthq/server:${PREFECT_SERVER_TAG:-latest}"
    command: "python src/prefect_server/services/towel/__main__.py"
    environment:
      PREFECT_SERVER__HASURA__ADMIN_SECRET: ${PREFECT_SERVER__HASURA__ADMIN_SECRET:-hasura-secret-admin-secret}
      PREFECT_SERVER__HASURA__HOST: hasura
    networks:
      - prefect-server
    restart: "always"
    depends_on:
      - graphql

  # Apollo: combines the hasura and graphql schemas into a unified schema, the primary API entrypoint
  apollo:
    image: "prefecthq/apollo:${PREFECT_SERVER_TAG:-latest}"
    ports:
      - "${APOLLO_HOST_IP:-127.0.0.1}:${APOLLO_HOST_PORT:-4200}:4200"
    command: bash -c "./post-start.sh && npm run serve"
    environment:
      HASURA_API_URL: ${HASURA_API_URL:-http://hasura:3000/v1alpha1/graphql}
      PREFECT_API_URL: ${PREFECT_API_URL:-http://graphql:4201/graphql/}
      PREFECT_API_HEALTH_URL: ${PREFECT_API_HEALTH_URL:-http://graphql:4201/health}
      PREFECT_SERVER__TELEMETRY__ENABLED: ${PREFECT_SERVER__TELEMETRY__ENABLED:-true}
      GRAPHQL_SERVICE_HOST: http://graphql
      GRAPHQL_SERVICE_PORT: 4201
    networks:
      - prefect-server
    healthcheck:
      test: curl --fail --silent "http://apollo:4200/.well-known/apollo/server-health" &> /dev/null || exit 1
      interval: 10s
      timeout: 2s
      retries: 60
      start_period: 1s
    restart: always
    depends_on:
      - graphql
      - hasura

  # UI: the user interface that provides a visual dashboard for mutating and querying metadata
  # The UI is a standalone web interface and only communicates with the Apollo GraphQL API via
  #  the host from which it is accessed (i.e. the user's browser) .
  ui:
    image: "prefecthq/ui:${PREFECT_UI_TAG:-latest}"
    ports:
      - "${UI_HOST_IP:-127.0.0.1}:${UI_HOST_PORT:-8080}:8080"
    command: "/intercept.sh"
    environment:
      PREFECT_SERVER__APOLLO_URL: ${APOLLO_URL:-http://localhost:4200/graphql}
    networks:
      - prefect-server
    healthcheck:
      test: curl --fail --silent --head "http://ui:8080/" &> /dev/null || exit 1
      interval: 30s
      timeout: 5s
      retries: 3
    restart: always
    depends_on:
      - apollo

networks:
  prefect-server:
    name: prefect-server