Changed the base image in the Dockerfile to be the same as ko

[iastewar]

This makes the local development image the same as the production one, avoiding the cert errors that appeared with scratch.

Ideally we should be able to just use ko locally and avoid the need for a Dockerfile altogether. I haven't had a chance to look into this yet but there are flags like -L to the ko build command that might work.

[patflynn]

should this use distroless.dev/static:latest? I think that's what ko defaults to now.

[iastewar]

should this use distroless.dev/static:latest? I think that's what ko defaults to now.

According to the docs, gcr.io/distroless/static:nonroot is the default. Where did you find that distroless.dev/static:latest is the default?

[patflynn]

https://github.com/ko-build/ko/blob/7dc51c0cf6db4346bfbe98b82e1c3ea0eb5e4bd3/pkg/commands/options/build.go#L35

I think the docs are out of date. @imjasonh FYI

[imjasonh]

The docs are out of date, as of v0.12 the default base image is cgr.dev/chainguard/static:latest (equivalent to distroless.dev/static:latest)

ko-build/ko#903

[iastewar]

Thanks @patflynn and @imjasonh. Has the base image been changed often? If so we might as well remove the Dockerfile now and just use ko locally.

[imjasonh]

The base image has changed exactly once ever, from gcr distroless to distroless.dev, then in name only to the equivalent cgr.dev/chainguard image.

I don't expect it will change again, at least not soon.

[spowelljr]

Thanks for this fix!