Reduce Docker image size from 165 MB to 32.8 MB #131
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Using multi-stage build available from Docker 17.05 to avoid having any build artifacts.
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Also I noticed that the version referenced in |
From 114 to 32 MB
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I tried another approach were the final size is 36 MB, but I'm not sure if it runs correctly. I have modified I then untar the release tar.gz in Do you think it can work like this? |
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Thank you so much for the PR! I will pull your branch this weekend and if it's all working well I will release a new version! That's awesome 🎉 |
Dockerfile
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| @@ -13,7 +13,18 @@ RUN mix deps.get | |||
| RUN mix compile | |||
| RUN echo "" > config/poxa.prod.conf | |||
| RUN mix release | |||
| RUN mkdir -p /app/$APP_NAME | |||
| WORKDIR /app/$APP_NAME | |||
| RUN tar xzf /source/_build/prod/rel/$APP_NAME/releases/0.7.1/$APP_NAME.tar.gz | |||
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I think we need to tar the rel/* so that we don't need to hardcode the version here.
I've tested and it's working nicely! I got 32.8MB here 🎉
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Good point! I replaced I'm glad it works :-) I took inspiration from this elixir-forum thread and especially this comment but I was not sure that omitting Should I stash the commits? |
cbliard
changed the title
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@cbliard, thank you so much! I will release a new version soon! 👌 The commits are ok! I can squash & merge no problem 👍 |
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Perfect! Happy to help :-) Thanks for providing poxa 👍 |
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Awesome! I will do some manual testing later today or tomorrow and release a brand new version. Thanks once again 👍 |
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The latest image is looking good 👍 |
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Great 🎉 I'm waiting for the v0.x.x docker image release :-) |
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0.8.0 is out! I also updated the heroku deployment! Thanks again! |
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👍 |
I recently upgraded from the old
edgurgelpoxa:0.5.0docker image to the latestedgurgel:poxa-automated:0.7.2docker image, and the image size grew from 26 MB to 165 MB.I tried to reduce the size by using multi-stage build available from Docker 17.05 to avoid having any
build artifacts at all and no git package installed. I managed to get a 114 MB image.
I also used
apk --no-cacheinstead ofapk --update .... && rm -rf /var/cache/apk/*.I do not know Erlang/Elixir well enough to go further but at least it's 50 MB less.