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[[!meta title="Installing Ruby with RVM on Alpine Linux"]]
[[!meta date="2023-03-16"]]
For some on-going projects I need to switch to different versions of `ruby`. Although there exist many step-by-step instructions on installing and configuring `rvm` for most Linux distros, there aren't many focused on Alpine "daily drivers".
So this post is more or less a helpful document for my future self. If it happens to help others then that's an added bonus!
## Simple Setup
Make sure you have the basic packages first:
apk update
apk add curl gcc gnupg gpg dirmngr procps musl-dev linux-headers zlib zlib-dev openssl openssl-dev libssl1.1
Next download the latest `stable` version of `rvm` from Github, unpack it, place it in the proper user directory (~/.rvm) and install any required libs:
curl -sSL https://github.com/rvm/rvm/tarball/stable -o rvm-stable.tar.gz
echo 'export rvm_prefix="$HOME"' > ~/.rvmrc
echo 'export rvm_path="$HOME/.rvm"' >> ~/.rvmrc
mkdir rvm && cd rvm
tar --strip-components=1 -xzf ../rvm-stable.tar.gz
./install --auto-dotfiles --autolibs=0
Now we can remove everything and properly link to `rvm`:
cd ../ && rm -rf rvm-stable stable.tar.gz rvm
source ~/.rvm/scripts/rvm
Now you can freely install any version of Ruby that you desire!
rvm install ruby-X.X.X
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