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GHA tests that depend on Postgres fail intermittently: #25757
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Our GH workflow is configured to run tests automatically upon pushes. Recently, I switched our test backend db on Github Actions from SQLite to Postgres. Since then we get errors like this, often but not every time: Sometimes the jobs work the first time, or I can re-run the same failing job some hours later and it will succeed. The failures are intermittent. The YAML for the GH workflow is here: failng-pg-jobs - Pastebin.com I find a discussion here python 3.x - Django was unable to create a connection to the 'postgres' database and will use the default database instead - Stack Overflow where someone had a similar issue and was advised to introduce a package called I can try this, and will if I don’t find any bettter ideas, but I’m using Anybody have ideas or suggestions? |
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Replies: 2 comments
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This seems to be resolved (knock on wood). What ended up working was using depends_on together with condition so the postgres health check was actually getting monitored by the dependent service, e.g.: See SO post here: django - psql not found in script for trying to control startup and shutdown order in Docker Compose - Stack Overflow Note that this isn’t officially supported for docker compose v3, but it seems to be unofficially supported. My editor gives me a warning on the condition statement. It works fine when running in Github, so I’m content for now. |
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Best explanation I found about this problem is in this blog post. In short, for the web service, add a service health condition and a restart "always". for the db, specify what "healthy" means: |
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This seems to be resolved (knock on wood).
What ended up working was using depends_on together with condition so the postgres health check was actually getting monitored by the dependent service, e.g.:
See SO post here: django - psql not found in script for trying to control startup and shutdown order in Docker Compose - Stack Overflow
Note that this isn’t officially supported for docker compose v3, but it seems to be unofficially supported. My editor gives me a warning on the condition statement. It works fine when running in Github, so I’m content for now.