docker

Author: jamiemccarthy

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
       max-parallel: 2
       fail-fast: false
       matrix:
-        ruby-version: ['2.6', '2.7', '3.0', '3.1', '3.2.0-preview3']
+        ruby-version: ['2.6', '2.7', '3.0', '3.1', '3.2']
         activerecord-version: ['5.0', '5.1', '5.2', '6.0', '6.1', '7.0', '7.1']
         exclude:
           # Rails 7's gemspec requires ruby >= 2.7
@@ -30,14 +30,14 @@ jobs:
             activerecord-version: '5.1'
           - ruby-version: '3.1'
             activerecord-version: '5.2'
-          - ruby-version: '3.2.0-preview3'
+          - ruby-version: '3.2'
             activerecord-version: '5.0'
-          - ruby-version: '3.2.0-preview3'
+          - ruby-version: '3.2'
             activerecord-version: '5.1'
-          - ruby-version: '3.2.0-preview3'
+          - ruby-version: '3.2'
             activerecord-version: '5.2'
           # This can't install sqlite3 and I have no idea why
-          - ruby-version: '3.2.0-preview3'
+          - ruby-version: '3.2'
             activerecord-version: '7.1'
 
     steps:

Dockerfile

@@ -0,0 +1,46 @@
+# To create an image for a version of ruby, run e.g.:
+
+# docker build -t udi278 --build-arg ruby_version=2.7.8 --build-arg activerecord_version=5.2 .
+# docker run --name udc278 -dit udi278
+# docker exec -it udc278 bash --login
+# docker stop udc278 && docker remove udc278
+
+# (Any bundler_version is okay as long as its required_ruby_version is not >= 3.0.0.)
+
+FROM debian:bookworm
+SHELL ["/bin/bash", "-c"]
+ENV WORKDIR=/app
+WORKDIR ${WORKDIR}
+RUN apt update && \
+  apt upgrade -qy && \
+  apt install -qy default-mysql-client postgresql-client libyaml-dev git less procps vim && \
+  apt install -qy rbenv && \
+  rm -rf /var/lib/apt/lists/*
+
+ARG ruby_version=3.1.2
+ARG activerecord_version=7.0
+ARG bundler_version=2.4.22
+ENV BUNDLE_GEMFILE="${WORKDIR}/gemfiles/activerecord_${activerecord_version}.gemfile"
+
+# We install rbenv, which also installs ruby-build as well as all the dependencies they
+# require. But debian's version of ruby-build, even in the latest bookworm, is old (2022).
+# Luckily rbenv basically uses ruby-build as a plugin. We remove apt's ruby-build then
+# install ruby-build from its main branch. That way all ruby versions are available.
+RUN apt remove -qy ruby-build && \
+  git clone --branch v20231114 https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build && \
+  "$(rbenv root)"/plugins/ruby-build/install.sh && \
+  echo 'eval "$(rbenv init -)"' >> /root/.profile && \
+  chmod 700 /root/.profile && \
+  rm -rf /var/lib/apt/lists/*
+
+# Ensure the rbenv init script in /root/.profile, added above, gets processed
+# before each RUN from now on, even though the bash shells are non-interactive.
+SHELL ["/bin/bash", "--login", "-c"]
+
+RUN rbenv install $ruby_version && \
+  rbenv global $ruby_version
+RUN gem install -v 2.4.22 bundler && \
+  bundle config --local build.mysql2 -- $(ruby -r rbconfig -e 'puts RbConfig::CONFIG["configure_args"]' | xargs -n1 | grep with-openssl-dir)
+
+ADD . ${WORKDIR}
+RUN bundle install

compose.yaml

@@ -0,0 +1,26 @@
+services:
+  app:
+    build:
+      dockerfile: Dockerfile
+      args:
+        - ruby_version=3.0.6
+        - activerecord_version=6.1
+    depends_on:
+      - mysql
+      - postgres
+  mysql:
+    platform: linux/amd64
+    image: mysql:8-debian
+    environment:
+      - MYSQL_ROOT_PASSWORD=Password123
+    volumes:
+      - mysqldata:/var/lib/mysql
+  postgres:
+    image: postgres:15-alpine
+    environment:
+      - POSTGRES_PASSWORD=Password123
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+volumes:
+  mysqldata:
+  pgdata: