Running docker build -t arquillian/blog . fails

[baerrach]

Issue Overview

Building the website via docker on windows fails.

Current Behaviour

Steps To Reproduce

Forked repo, cloned locally, ran the docker command as per README

docker build -t arquillian/blog .

Additional Information

Step 21/31 : RUN curl -sSL https://raw.githubusercontent.com/wayneeseguin/rvm/stable/binscripts/rvm-installer | /bin/bash -s stable --ruby=$RUBY_VERSION
 ---> Running in 5217c2cb477b
Downloading https://github.com/rvm/rvm/archive/1.29.10.tar.gz
Downloading https://github.com/rvm/rvm/releases/download/1.29.10/1.29.10.tar.gz.asc
gpg: Signature made Wed 25 Mar 2020 09:58:42 PM UTC using RSA key ID 105BD0E739499BDB
gpg: Can't check signature: No public key
GPG signature verification failed for '/home/dev/.rvm/archives/rvm-1.29.10.tgz' - 'https://github.com/rvm/rvm/releases/download/1.29.10/1.29.10.tar.gz.asc'! Try
 to install GPG v2 and then fetch the public key:

    gpg2 --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB

or if it fails:

    command curl -sSL https://rvm.io/mpapis.asc | gpg2 --import -
    command curl -sSL https://rvm.io/pkuczynski.asc | gpg2 --import -

In case of further problems with validation please refer to https://rvm.io/rvm/security

The command '/bin/sh -c curl -sSL https://raw.githubusercontent.com/wayneeseguin/rvm/stable/binscripts/rvm-installer | /bin/bash -s stable --ruby=$RUBY_VERSION'
 returned a non-zero code: 2

[baerrach]

Update Dockerfile with the commands listed in the error produce

Step 21/32 : RUN gpg2 --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
 ---> Running in b14a255423db
gpg: key 105BD0E739499BDB: public key "Piotr Kuczynski <piotr.kuczynski@gmail.com>" imported
gpg: key 3804BB82D39DC0E3: "Michal Papis (RVM signing) <mpapis@gmail.com>" not changed
gpg: no ultimately trusted keys found
gpg: Total number processed: 2
gpg:               imported: 1
gpg:              unchanged: 1
Removing intermediate container b14a255423db
 ---> 1358a69ccb85
Step 22/32 : RUN curl -sSL https://raw.githubusercontent.com/wayneeseguin/rvm/stable/binscripts/rvm-installer | /bin/bash -s stable --ruby=$RUBY_VERSION
 ---> Running in cb4d1e3d986f
Downloading https://github.com/rvm/rvm/archive/1.29.10.tar.gz
Downloading https://github.com/rvm/rvm/releases/download/1.29.10/1.29.10.tar.gz.asc
gpg: Signature made Wed 25 Mar 2020 09:58:42 PM UTC using RSA key ID 105BD0E739499BDB
gpg: Good signature from "Piotr Kuczynski <piotr.kuczynski@gmail.com>" [unknown]
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.
Primary key fingerprint: 7D2B AF1C F37B 13E2 069D  6956 105B D0E7 3949 9BDB

I have no idea whether those keys are valid...

Googling leads to this ruby issue https://github.com/rvm/rvm/issues/4677

I suspect the problem is due to the Dockerfile containing:

# workaround for https://github.com/rvm/rvm/issues/4068
RUN curl -sSL https://raw.githubusercontent.com/wayneeseguin/rvm/stable/binscripts/rvm-installer | /bin/bash -s stable --ruby=$RUBY_VERSION

As this issue was closed on Aug 28, 2017 you can use the rvm installers directly.