Multiarch images #432
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Multiarch images #432
+117
−55
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As discussed briefly in #216
The high-level logic here is to build each postgres/postgis/variant tuple natively (for speed) on both AMD64 and ARM64 separately, then push those images to Dockerhub by digest (ie, untagged). Do some magic with manifests/indexes to reference those digest and push them up to Dockerhub with the human-readable tags.
When someone pulls the image, dockerd will follow the index/manifest chain to resolve the correct image for the runtime's architecture.
If this is merged, it probably obviates #256, #405, #406 (nonexhaustive)