build: refresh imapfilter image to 2.8.2 - #7
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Why: - Refresh the image so it builds cleanly and ships the current packaged imapfilter release. - Add container validation that can be required on pull requests. Image refresh: - Switch the base image from alpine:latest to alpine:3. - Remove stale explicit libcrypto/libssl installs and unused wget/curl packages. - Keep bash and moreutils as explicit runtime dependencies for the entrypoint. - Continue installing imapfilter from Alpine edge/testing. - Update IMAPFILTER_VERSION to 2.8.2. Testing and CI: - Add goss.yaml container assertions. - Add make test using dgoss and IMAPFILTER_VERSION-driven expectations. - Run CI image validation for both linux/amd64 and linux/arm64. - Fix local dgoss execution on Apple Silicon by using a Linux arm64 goss binary for container-side validation. - Make the image publish job depend on the test job for tag releases. Validation: - Ran make test. - Confirmed dgoss passed all 7 container checks locally.
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Summary
imapfilterrelease and simplify the Alpine package setdgoss-based container validation with a localmake testtargetlinux/amd64andlinux/arm64Details
alpine:latesttoalpine:3wget/curlbashandmoreutilsas explicit runtime dependencies for the entrypointimapfilterfrom Alpineedge/testingIMAPFILTER_VERSIONto2.8.2goss.yamlassertions for container contents and entrypoint behaviordgossruns work on Apple Silicon by using a Linuxarm64gossbinary inside the test containerValidation
make test