DEFAULT_AUTH override is not respected

[jwillmer]

Summary

I want to backup multiple databases so I don't want to modify the DEFAULT_AUTH variable. However the DB0X-AUTH variable is not respected.

Steps to reproduce

I reduced my backup config to only one database for testing. This is a working configuration:

        environment:
          - ...
          - DEFAULT_AUTH=local         
          - DB01-AUTH=local
          - DB01_TYPE=pgsql
          - DB01_HOST=postgres
          - DB01_USER=${POSTGRESUSER}
          - DB01_PASS=${POSTGRESPW}
          - DB01_NAME=ALL
          - DB01_SPLIT_DB=TRUE

With message:

2024-10-16.12:05:42 [INFO] ** [db-backup01] Starting Manual Backup for db-backup01
2024-10-16.12:05:45 [NOTICE] ** [01-postgres__ALL] Dumping PostgresSQL database: 'postgres' and compressing with 'gzip'
2024-10-16.12:05:45 [INFO] ** [01-postgres__ALL] DB Backup of 'pgsql_postgres_postgres_20241016-120544.sql.gz' completed successfully
2024-10-16.12:05:45 [NOTICE] ** [01-postgres__ALL] Generating MD5 sum for 'pgsql_postgres_postgres_20241016-120544.sql.gz'
2024-10-16.12:05:45 [NOTICE] ** [01-postgres__ALL] Backup of 'pgsql_postgres_postgres_20241016-120544.sql.gz' created with the size of 95302 bytes
2024-10-16.12:05:46 [NOTICE] ** [01-postgres__ALL] DB Backup for 'postgres' time taken: Hours: 0 Minutes: 00 Seconds: 02
2024-10-16.12:05:46 [INFO] ** [01-postgres__ALL] Cleaning up old backups on filesystem
2024-10-16.12:05:46 [NOTICE] ** [01-postgres__ALL] Dumping PostgresSQL database: 'local' and compressing with 'gzip'
2024-10-16.12:05:46 [INFO] ** [01-postgres__ALL] DB Backup of 'pgsql_local_postgres_20241016-120546.sql.gz' completed successfully
2024-10-16.12:05:46 [NOTICE] ** [01-postgres__ALL] Generating MD5 sum for 'pgsql_local_postgres_20241016-120546.sql.gz'
2024-10-16.12:05:47 [NOTICE] ** [01-postgres__ALL] Backup of 'pgsql_local_postgres_20241016-120546.sql.gz' created with the size of 446 bytes
2024-10-16.12:05:47 [NOTICE] ** [01-postgres__ALL] DB Backup for 'local' time taken: Hours: 0 Minutes: 00 Seconds: 01
2024-10-16.12:05:47 [INFO] ** [01-postgres__ALL] Cleaning up old backups on filesystem
2024-10-16.12:05:47 [INFO] ** [01-postgres__ALL] Backup 01 routines finish time: 2024-10-16 12:05:47 CEST with exit code 0
2024-10-16.12:05:47 [NOTICE] ** [01-postgres__ALL] Backup 01 routines time taken: Hours: 0 Minutes: 00 Seconds: 03

Broken configuration:

        environment:
          - ...
          # - DEFAULT_AUTH=local         
          - DB01-AUTH=local
          - DB01_TYPE=pgsql
          - DB01_HOST=postgres
          - DB01_USER=${POSTGRESUSER}
          - DB01_PASS=${POSTGRESPW}
          - DB01_NAME=ALL
          - DB01_SPLIT_DB=TRUE

With error message:

2024-10-16.12:07:31 [INFO] ** [db-backup01] Starting Manual Backup for db-backup01
psql: error: connection to server at "postgres" (172.20.0.4), port 5432 failed: FATAL:  database "admin" does not exist
2024-10-16.12:07:33 [INFO] ** [01-postgres__ALL] Backup 01 routines finish time: 2024-10-16 12:07:33 CEST with exit code 0
2024-10-16.12:07:33 [NOTICE] ** [01-postgres__ALL] Backup 01 routines time taken: Hours: 0 Minutes: 00 Seconds: 01

What is the expected correct behavior?

Relevant logs and/or screenshots

Environment

I use version/tag 4.1.4 but I could also reproduce it with the develop version.