Postgresql 尽管配置了postgres，但docker compose始终试图访问sqlite

我尝试设置一个停靠的airflow实例，但无论我做什么（到目前为止…），它都会一直尝试访问一些sqlite3数据库，而我不知道该指令来自何处。我通过

aiffair\uuuuu CORE\uuuu SQL\u ALCHEMY\u CONN

，甚至

aiffair\u CONN\u METADATA\u DB

，指向所有可能的Postgres实例

启动时的典型错误消息如下：

sqlalchemy.exc.OperationalError: (sqlite3.OperationalError) no such table: job

完整docker-compose.yml：

version: '3'
x-airflow-common:
  &airflow-common
  image: apache/airflow:2.0.0
  environment:
    - AIRFLOW__CORE__EXECUTOR=LocalExecutor
    - AIRFLOW__CORE__SQL_ALCHEMY_CONN=postgresql+psycopg2://postgres:postgres@db:9501/airflow
    - AIRFLOW_CONN_METADATA_DB=postgres+psycopg2://postgres:postgres@db:9501/airflow
    - AIRFLOW__CORE__FERNET_KEY=FB0o_zt4e3Ziq3LdUUO7F2Z95cvFFx16hU8jTeR1ASM=
    - AIRFLOW__CORE__LOAD_EXAMPLES=True
    - AIRFLOW__CORE__LOGGING_LEVEL=INFO
  volumes:
    - /home/x/docker/airflow/dags:/opt/airflow/dags
    - /home/x/docker/airflow/airflow-data/logs:/opt/airflow/logs
    - /home/x/docker/airflow/airflow-data/plugins:/opt/airflow/plugins
    - /home/x/docker/airflow/airflow-data/airflow.cfg:/opt/airlfow/airflow.cfg
  depends_on:
    - db

services:
  db:
    image: postgres:12
    #image: postgres:12.1-alpine
    environment:
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres
      - POSTGRES_DB=airflow
      - POSTGRES_PORT=9501
      - POSTGRES_HOST_AUTH_METHOD=trust
    ports:
      - 9501:9501
    command:
      - -p 9501

  airflow-init:
    << : *airflow-common
    container_name: airflow_init
    entrypoint: /bin/bash
    environment:
      - SQL_ALCHEMY_CONN=postgresql://postgres:postgres@db:9501/airflow
      - AIRFLOW_CONN_METADATA_DB=postgres://postgres:postgres@db:9501/airflow
    command:
      - -c
      - airflow users list || ( airflow db init &&
        airflow users create
          --role Admin
          --username airflow
          --password airflow
          --email airflow@airflow.com
          --firstname airflow
          --lastname airflow )
    restart: on-failure

  airflow-webserver:
    << : *airflow-common
    command: airflow webserver
    ports:
      - 9500:8080
    container_name: airflow_webserver
    environment:
      - AIRFLOW_USERNAME=airflow
      - AIRFLOW_PASSWORD=airflow
      - SQL_ALCHEMY_CONN=postgresql://postgres:postgres@db:9501/airflow
      - AIRFLOW_CONN_METADATA_DB=postgres://postgres:postgres@db:9501/airflow
    restart: always

  airflow-scheduler:
    << : *airflow-common
    command: airflow scheduler
    container_name: airflow_scheduler
    environment:
      - SQL_ALCHEMY_CONN=postgresql://postgres:postgres@db:9501/airflow
      - AIRFLOW_CONN_METADATA_DB=postgres://postgres:postgres@db:9501/airflow
    restart: always

版本：“3”
x-通用：
&普通气流
图片：apache/airflow:2.0.0
环境：
-气流\uuuu核心\uuuu执行器=本地执行器
-气流核心炼金术CONN=postgresql+psycopg2://postgres:postgres@db：9501/气流
-气流连接元数据DB=postgres+psycopg2://postgres:postgres@db：9501/气流
-空气流量\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu=
-气流\uuuuu芯\uuuuu负载\u示例=真
-气流\uuuuu芯\uuuuu记录\u级别=信息
卷数：
-/home/x/docker/airflow/dags:/opt/airflow/dags
-/home/x/docker/airflow/airflow data/logs:/opt/airflow/logs
-/home/x/docker/airflow/airflow data/plugins:/opt/airflow/plugins
-/home/x/docker/airflow/airflow data/airflow.cfg:/opt/airlfow/airflow.cfg
取决于：
-分贝
服务：
db:
图片：博士后：12
#图片：postgres:12.1-1
环境：
-POSTGRES\u USER=POSTGRES
-POSTGRES\u密码=POSTGRES
-POSTGRES_DB=气流
-POSTGRES_端口=9501
-POSTGRES\u HOST\u AUTH\u METHOD=信任
端口：
- 9501:9501
命令：
--第9501页
气流初始：
通过以下docker-compose.yaml文件解决：


而不是试图调整postgres（和redis）的端口，而是使用了“expose”选项，这样可以避免与同一主机上的其他容器发生冲突

所以不是：

 environment: 
   POSTGRES_PORT: 9501
 ports:
   - 9501:9501

但是：使用默认端口（内部）运行它，不要尝试在外部共享它们：

 expose: 
   - 5432

仍然不确定使用更高端口的问题是什么。当配置的数据库由于某种原因无法连接时，这可能是sqlite的默认回退