Extra containers and extra initContainers - #15
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Add extra containers helm chart so that we can deploy on GCP with Managed SQL instance. That's because GCP wants you to use an sql-auth-proxy
djfarrelly
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Feb 16, 2026
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Hi @ivank - thanks for this PR - I like the idea and would definitely like to support it. One key question that I had with this PR was why the string literal approach instead of yaml configuration for these? I would imagine that configuring these in yaml would be easier as it's structured and easier for other tools to parse, but I may be missing some context in the ecosystem why a yaml-in-string-literal approach is better.
I drafted the yaml approach on top of your work below, but would like your thoughts on this if there are any pros/cons that I may be missing?
Thanks again for the contribution!
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Our setup is on GCP and we are using google SQL for postgres. The recommended way to connect to the database is with google's sql auth proxy.
And the easiest way of doing this is to have the proxy running as a sidecar container.
To do that we define
extraContainersandextraInitContainers, and make this consistent in all the deployments so future considerations can also be handled with this - for example a telemetry collector or a logs file reader.I have seen this pattern in a lot of software, for example HashiCorp's consul.
I've already made the same change in another software we are using and that worked out well featbit/featbit-charts#57