[BUG] Third-party datasources do not sync when chaosgenius-db port is not exposed

[Samyak2]

Describe the bug

After adding a Google Sheets data source in 0.4.0-rc thirdparty, the tables never show up when adding a KPI. The following error can be seen in the logs of airbyte-scheduler:

2022-02-15 00:07:52 ERROR i.a.c.i.LineGobbler(voidCall):85 - {job_log_path=/tmp/workspace/1/1/logs.log} -       Suppressed: java.sql.SQLException: Cannot create PoolableConnectionFactory (Connection to host.docker.internal:5433 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.)

Additionally, trying a "Query" instead of "Table" shows a similar error in the UI:

Explain the environment

• Chaos Genius version: example is 0.4.0-rc thirdparty
• OS Version / Instance: Ubuntu 20.04
• Deployment type: Docker

Current behavior

Steps to reproduce:

• Install 0.4.0-rc with thirdparty docker compose
• Setup a Google Sheets data source
• Notice the issue in logs and when adding a Query KPI