# add airflow

server/docker/app/traefik/node/nas/conf/conf.d/db.yml

@@ -27,6 +27,9 @@ http:
     superset:
       rule: Host(`superset.czy21-internal.com`)
       service: superset@docker
+    airflow:
+      rule: Host(`airflow.czy21-internal.com`)
+      service: airflow@docker
     chat2db:
       rule: Host(`chat2db.czy21-internal.com`)
       service: chat2db@docker

server/docker/db/airflow/deploy.yml

@@ -0,0 +1,203 @@
+
+x-traefik-label: &traefik-label
+  traefik.enable: true
+  traefik.http.routers.{{ param_role_name }}.service: {{ param_role_name }}
+  traefik.http.services.{{ param_role_name }}.loadbalancer.server.port: 8080
+
+x-airflow-common:
+  &airflow-common
+  image: apache/airflow:2.10.3
+  environment:
+    &airflow-common-env
+    AIRFLOW__CORE__EXECUTOR: CeleryExecutor
+    AIRFLOW__DATABASE__SQL_ALCHEMY_CONN: postgresql+psycopg2://{{ param_db_pgsql_username }}:{{ param_db_pgsql_password }}@{{ param_db_pgsql_host }}:{{ param_db_pgsql_port }}/airflow
+    AIRFLOW__CELERY__RESULT_BACKEND: db+postgresql://{{ param_db_pgsql_username }}:{{ param_db_pgsql_password }}@{{ param_db_pgsql_host }}:{{ param_db_pgsql_port }}/airflow
+    AIRFLOW__CELERY__BROKER_URL: redis://:{{ param_db_redis_password }}@{{ param_db_redis_host }}:{{ param_db_redis_port }}/0
+    AIRFLOW__CORE__FERNET_KEY: ''
+    AIRFLOW__CORE__DAGS_ARE_PAUSED_AT_CREATION: 'true'
+    AIRFLOW__CORE__LOAD_EXAMPLES: 'true'
+    AIRFLOW__API__AUTH_BACKENDS: 'airflow.api.auth.backend.basic_auth,airflow.api.auth.backend.session'
+    AIRFLOW__SCHEDULER__ENABLE_HEALTH_CHECK: 'true'
+    _PIP_ADDITIONAL_REQUIREMENTS: 
+  volumes:
+    - {{ param_docker_data }}/{{ param_role_name }}/data/dags:/opt/airflow/dags
+    - {{ param_docker_data }}/{{ param_role_name }}/data/logs:/opt/airflow/logs
+    - {{ param_docker_data }}/{{ param_role_name }}/data/config:/opt/airflow/config
+    - {{ param_docker_data }}/{{ param_role_name }}/data/plugins:/opt/airflow/plugins
+  user: "1000:0"
+
+services:
+
+  airflow-webserver:
+    <<: *airflow-common
+    container_name: airflow-webserver
+    command: webserver
+    labels:
+      <<: *traefik-label
+    healthcheck:
+      test: ["CMD", "curl", "--fail", "http://localhost:8080/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 30s
+    restart: always
+    depends_on:
+
+      airflow-init:
+        condition: service_completed_successfully
+
+  airflow-scheduler:
+    <<: *airflow-common
+    container_name: airflow-scheduler
+    command: scheduler
+    healthcheck:
+      test: ["CMD", "curl", "--fail", "http://localhost:8974/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 30s
+    restart: always
+    depends_on:
+
+      airflow-init:
+        condition: service_completed_successfully
+
+  airflow-worker:
+    <<: *airflow-common
+    container_name: airflow-worker
+    command: celery worker
+    healthcheck:
+      # yamllint disable rule:line-length
+      test:
+        - "CMD-SHELL"
+        - 'celery --app airflow.providers.celery.executors.celery_executor.app inspect ping -d "celery@$${HOSTNAME}" || celery --app airflow.executors.celery_executor.app inspect ping -d "celery@$${HOSTNAME}"'
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 30s
+    environment:
+      <<: *airflow-common-env
+      # Required to handle warm shutdown of the celery workers properly
+      # See https://airflow.apache.org/docs/docker-stack/entrypoint.html#signal-propagation
+      DUMB_INIT_SETSID: "0"
+    restart: always
+    depends_on:
+
+      airflow-init:
+        condition: service_completed_successfully
+
+  airflow-triggerer:
+    <<: *airflow-common
+    container_name: airflow-triggerer
+    command: triggerer
+    healthcheck:
+      test: ["CMD-SHELL", 'airflow jobs check --job-type TriggererJob --hostname "$${HOSTNAME}"']
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 30s
+    restart: always
+    depends_on:
+
+      airflow-init:
+        condition: service_completed_successfully
+
+  airflow-init:
+    <<: *airflow-common
+    container_name: airflow-init
+    entrypoint: /bin/bash
+    # yamllint disable rule:line-length
+    command:
+      - -c
+      - |
+        if [[ -z "${AIRFLOW_UID}" ]]; then
+          echo
+          echo -e "\033[1;33mWARNING!!!: AIRFLOW_UID not set!\e[0m"
+          echo "If you are on Linux, you SHOULD follow the instructions below to set "
+          echo "AIRFLOW_UID environment variable, otherwise files will be owned by root."
+          echo "For other operating systems you can get rid of the warning with manually created .env file:"
+          echo "    See: https://airflow.apache.org/docs/apache-airflow/stable/howto/docker-compose/index.html#setting-the-right-airflow-user"
+          echo
+        fi
+        one_meg=1048576
+        mem_available=$$(($$(getconf _PHYS_PAGES) * $$(getconf PAGE_SIZE) / one_meg))
+        cpus_available=$$(grep -cE 'cpu[0-9]+' /proc/stat)
+        disk_available=$$(df / | tail -1 | awk '{print $$4}')
+        warning_resources="false"
+        if (( mem_available < 4000 )) ; then
+          echo
+          echo -e "\033[1;33mWARNING!!!: Not enough memory available for Docker.\e[0m"
+          echo "At least 4GB of memory required. You have $$(numfmt --to iec $$((mem_available * one_meg)))"
+          echo
+          warning_resources="true"
+        fi
+        if (( cpus_available < 2 )); then
+          echo
+          echo -e "\033[1;33mWARNING!!!: Not enough CPUS available for Docker.\e[0m"
+          echo "At least 2 CPUs recommended. You have $${cpus_available}"
+          echo
+          warning_resources="true"
+        fi
+        if (( disk_available < one_meg * 10 )); then
+          echo
+          echo -e "\033[1;33mWARNING!!!: Not enough Disk space available for Docker.\e[0m"
+          echo "At least 10 GBs recommended. You have $$(numfmt --to iec $$((disk_available * 1024 )))"
+          echo
+          warning_resources="true"
+        fi
+        if [[ $${warning_resources} == "true" ]]; then
+          echo
+          echo -e "\033[1;33mWARNING!!!: You have not enough resources to run Airflow (see above)!\e[0m"
+          echo "Please follow the instructions to increase amount of resources available:"
+          echo "   https://airflow.apache.org/docs/apache-airflow/stable/howto/docker-compose/index.html#before-you-begin"
+          echo
+        fi
+        mkdir -p /sources/logs /sources/dags /sources/plugins
+        chown -R "${AIRFLOW_UID}:0" /sources/{logs,dags,plugins}
+        exec /entrypoint airflow version
+    # yamllint enable rule:line-length
+    environment:
+      <<: *airflow-common-env
+      _AIRFLOW_DB_MIGRATE: 'true'
+      _AIRFLOW_WWW_USER_CREATE: 'true'
+      _AIRFLOW_WWW_USER_USERNAME: '{{ param_manage_username }}'
+      _AIRFLOW_WWW_USER_PASSWORD: '{{ param_manage_password }}'
+      _PIP_ADDITIONAL_REQUIREMENTS: ''
+    user: "0:0"
+    volumes:
+      - {{ param_docker_data }}/{{ param_role_name }}/data/:/sources
+
+  airflow-cli:
+    <<: *airflow-common
+    profiles:
+      - debug
+    environment:
+      <<: *airflow-common-env
+      CONNECTION_CHECK_MAX_COUNT: "0"
+    # Workaround for entrypoint issue. See: https://github.com/apache/airflow/issues/16252
+    command:
+      - bash
+      - -c
+      - airflow
+
+  # You can enable flower by adding "--profile flower" option e.g. docker-compose --profile flower up
+  # or by explicitly targeted on the command line e.g. docker-compose up flower.
+  # See: https://docs.docker.com/compose/profiles/
+  flower:
+    <<: *airflow-common
+    command: celery flower
+    profiles:
+      - flower
+    # ports:
+    #   - "5555:5555"
+    healthcheck:
+      test: ["CMD", "curl", "--fail", "http://localhost:5555/"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 30s
+    restart: always
+    depends_on:
+
+      airflow-init:
+        condition: service_completed_successfully