Build fails with empty logs when using custom docker image

[butaca]

I am trying to create a smaller image to build a hugo site. I tried the following two images:

FROM alpine:latest

ENV VERSION_HUGO=0.58.1

RUN apk add --no-cache bash curl git libc6-compat libstdc++ openssl

RUN curl -OL https://github.com/gohugoio/hugo/releases/download/v${VERSION_HUGO}/hugo_${VERSION_HUGO}_Linux-64bit.tar.gz && \
    tar -xf hugo_${VERSION_HUGO}_Linux-64bit.tar.gz hugo -C / && \
    mv /hugo /usr/bin/hugo && \
    rm -rf hugo_${VERSION_HUGO}_Linux-64bit.tar.gz

ENTRYPOINT [ "bash", "-c" ]

FROM amazonlinux:2

ENV VERSION_HUGO=0.58.1

RUN touch ~/.bashrc
RUN yum -y update && \
    yum -y install \
        curl \
        git \
        openssl-devel \
        openssh-clients \
        tar \
    yum clean all && \
    rm -rf /var/cache/yum

RUN curl -OL https://github.com/gohugoio/hugo/releases/download/v${VERSION_HUGO}/hugo_${VERSION_HUGO}_Linux-64bit.tar.gz && \
    tar -xf hugo_${VERSION_HUGO}_Linux-64bit.tar.gz hugo -C / && \
    mv /hugo /usr/bin/hugo && \
    rm -rf hugo_${VERSION_HUGO}_Linux-64bit.tar.gz

ENTRYPOINT [ "bash", "-c" ]

In both cases the build fails but the logs are empty.

[nimacks]

@butaca , can your provide your appId and app region?

[butaca]

Thanks @nimacks for taking a look into this.

region: us-east-2
app id: d1sstkga163z5f (I guess this is the app id, the last part of the ARN).

Please, let me know if you need something else.

[nimacks]

@butaca , can you ensure that your custom build image is complete?
It looks like you have 3 out of 4 of the required software required for custom builds to succeed.

• cURL

• git

• OpenSSh

• Node.JS+NPM

(NPM-based builds)Node.JS+NPM: Our build runner does not install Node, but instead relies on Node and NPM being installed in the image. This is only required for builds that require NPM packages or Node specific commands.

For more details see here https://docs.aws.amazon.com/amplify/latest/userguide/custom-build-image.html

[butaca]

@nimacks I didn’t install node since “This is only required for builds that require NPM packages or Node specific commands” and this is my case.

Should I try installing it even though I am not using it in my build?

[nimacks]

I would like to rule out any unknown dependencies on Node.JS, so if you could install and then build that would be great. If that doesn't work then we can rule that out as the root cause.

[butaca]

@nimacks I added Node and the build is working correctly now. It seems that Node is mandatory after all. Thanks for your help.

For future readers, the working image is here: https://github.com/butaca/amplify-hugo

[butaca]

@nimacks although I managed to reduce the build time form 3 minutes to 1 minutes approximately, I suspect that using alpine instead of amazonlinux:2 should reduce the build time significantly.

This is what I tried: https://github.com/butaca/amplify-hugo/blob/cc68609581fb22d1cf7a348b47fcdc57a9f1e711/Dockerfile

But I am blind since the logs are empty. It would be great if amplify provided the logs when the build fails.

[nimacks]

@butaca
I'm glad this is finally working for you. Alpine Linux has issues executing precompiled binaries and is currently not supported when using the custom build image feature.

We will look into making logs available to customers so you can have more insight into what's happening. If you're satisfied that you're issue has been resolved, please close this ticket. Thanks.

[butaca]

@nimacks Thanks for your help. I'm closing it now.

I would like to know if possible, if there is a lighter alternative to amazonlinux:2 as a base image.

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.