AWS MWAA：尝试在 Docker 上运行本地 Apache Airflow 环境时出现“无法访问 Postgres”错误

Question

Following the AWS MWAA (Amazon Managed Workflows for Apache Airflow) installation tutorial for Windows using Docker in WSL (Windows Subsystem for Linux) 2 with Ubuntu distro, I encountered a problem when trying to run a local Apache Airflow environment.

When I input the command wsl ./mwaa-local-env start , this is the output:

docker-postgres-1      | chmod: /var/lib/postgresql/data: Operation not permitted
docker-postgres-1      | The files belonging to this database system will be owned by user "postgres".
docker-postgres-1      | This user must also own the server process.
docker-postgres-1      |
docker-postgres-1      | The database cluster will be initialized with locale "en_US.utf8".
docker-postgres-1      | The default database encoding has accordingly been set to "UTF8".
docker-postgres-1      | The default text search configuration will be set to "english".
docker-postgres-1      |
docker-postgres-1      | Data page checksums are disabled.
docker-postgres-1      |
docker-postgres-1      | fixing permissions on existing directory /var/lib/postgresql/data ... initdb: could not change permissions of directory "/var/lib/postgresql/data": Operation not permitted
docker-postgres-1 exited with code 1
docker-local-runner-1  | Sat Feb 12 21:14:01 UTC 2022 - waiting for Postgres... 1/20
docker-local-runner-1  | Sat Feb 12 21:14:26 UTC 2022 - waiting for Postgres... 2/20
docker-local-runner-1  | Sat Feb 12 21:14:51 UTC 2022 - waiting for Postgres... 3/20
docker-local-runner-1  | Sat Feb 12 21:15:16 UTC 2022 - waiting for Postgres... 4/20
docker-local-runner-1  | Sat Feb 12 21:15:41 UTC 2022 - waiting for Postgres... 5/20
docker-local-runner-1  | Sat Feb 12 21:16:06 UTC 2022 - waiting for Postgres... 6/20
docker-local-runner-1  | Sat Feb 12 21:16:32 UTC 2022 - waiting for Postgres... 7/20
docker-local-runner-1  | Sat Feb 12 21:16:57 UTC 2022 - waiting for Postgres... 8/20
docker-local-runner-1  | Sat Feb 12 21:17:22 UTC 2022 - waiting for Postgres... 9/20
docker-local-runner-1  | Sat Feb 12 21:17:47 UTC 2022 - waiting for Postgres... 10/20
docker-local-runner-1  | Sat Feb 12 21:18:12 UTC 2022 - waiting for Postgres... 11/20
docker-local-runner-1  | Sat Feb 12 21:18:37 UTC 2022 - waiting for Postgres... 12/20
docker-local-runner-1  | Sat Feb 12 21:19:03 UTC 2022 - waiting for Postgres... 13/20
docker-local-runner-1  | Sat Feb 12 21:19:28 UTC 2022 - waiting for Postgres... 14/20
docker-local-runner-1  | Sat Feb 12 21:19:53 UTC 2022 - waiting for Postgres... 15/20
docker-local-runner-1  | Sat Feb 12 21:20:19 UTC 2022 - waiting for Postgres... 16/20
docker-local-runner-1  | Sat Feb 12 21:20:44 UTC 2022 - waiting for Postgres... 17/20
docker-local-runner-1  | Sat Feb 12 21:21:09 UTC 2022 - waiting for Postgres... 18/20
docker-local-runner-1  | Sat Feb 12 21:21:34 UTC 2022 - waiting for Postgres... 19/20
docker-local-runner-1  | Sat Feb 12 21:21:59 UTC 2022 - postgres:5432 still not reachable, giving up
docker-local-runner-1 exited with code 1

Answer 1

This solution fixed it for me:

1. docker volume create --name=db-data to create a db-data volume in docker

2. In file ./docker/docker-compose-local.yml change the line

   - "${PWD}/db-data:/var/lib/postgresql/data"

   to

   - "/db-data:/var/lib/postgresql/data"

Credits to : https://github.com/aws/aws-mwaa-local-runner/issues/45