Reduce Docker image size #24
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mraerino
previously approved these changes
Apr 8, 2022
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give me a sec to fix the CI flow for external contributions |
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@dmke would you mind merging main into your branch so the CI can run? |
By using Alpine instead of Ubuntu, the resulting image is around
110 MB smaller:
$ docker images
REPOSITORY TAG CREATED SIZE
unms-exporter alpine 3 seconds ago 20MB
unms-exporter ubuntu 5 minutes ago 132MB
We could save 5 MB more by using `FROM scratch` instead of Alpine,
but then handling of timezone and CA certificate files becomes a
hassle.
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Done. |
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By using Alpine instead of Ubuntu, the resulting image is around 110 MB smaller:
Some savings are due to building with
-ldflags="-s -w"(strip binary), and-trimpath(remove builder path prefixes).We could save 5 MB more by using
FROM scratchinstead of Alpine, but then handling of timezone and CA certificate files becomes a hassle.