Ruby slim

.devcontainer/devcontainer.json

@@ -0,0 +1,21 @@
+{
+  "name": "Existing Docker Compose (Extend)",
+  "dockerComposeFile": [
+    "../compose.yml"
+  ],
+  "service": "app",
+  "workspaceFolder": "/app",
+  "features": {
+    "ghcr.io/devcontainers/features/git:1": {},
+    "ghcr.io/devcontainers/features/sshd:1": {}
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-azuretools.vscode-docker",
+        "shopify.ruby-extensions-pack",
+        "testdouble.vscode-standard-ruby"
+      ]
+    }
+  }
+}

.gitignore

@@ -1,6 +1,16 @@
 .bash_history
 .idea
 .irb_history
+.rdbg_history
 .cache
 .bundle
+
+.ruby-lsp
+.vscode-server
+.ssh
+.gitconfig
+.local
+.dotnet
+
 .env
+vendor/

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+  "standardRuby.autofix": true
+}

Dockerfile

@@ -1,29 +1,58 @@
-FROM ruby:3.2 AS development
+################################################################################
+# BASE
+################################################################################
+FROM ruby:3.3-slim AS base
 
-ARG UNAME=app
 ARG UID=1000
 ARG GID=1000
 
-## Install Vim (optional)
-#RUN apt-get update -yqq && apt-get install -yqq --no-install-recommends \
-#  vim-tiny
 
-RUN gem install bundler
+RUN apt-get update -yqq && apt-get install -yqq --no-install-recommends \
+  build-essential \
+  libtool
+
+
+RUN groupadd -g ${GID} -o app
+RUN useradd -m -d /app -u ${UID} -g ${GID} -o -s /bin/bash app
 
-RUN groupadd -g ${GID} -o ${UNAME}
-RUN useradd -m -d /app -u ${UID} -g ${GID} -o -s /bin/bash ${UNAME}
+ENV GEM_HOME=/gems
+ENV PATH="$PATH:/gems/bin"
 RUN mkdir -p /gems && chown ${UID}:${GID} /gems
 
-USER $UNAME
 
-ENV BUNDLE_PATH /gems
+ENV BUNDLE_PATH /app/vendor/bundle
+
+# Change to app and back so that bundler created files in /gmes are owned by the
+# app user
+USER app
+RUN gem install bundler
+USER root
 
 WORKDIR /app
 
 CMD ["tail", "-f", "/dev/null"]
 
-FROM development AS production
+################################################################################
+# DEVELOPMENT                                           								       # 
+################################################################################
+FROM base AS development
+
+RUN apt-get update -yqq && apt-get install -yqq --no-install-recommends \
+  vim-tiny
+
+USER app
+
+################################################################################
+# PRODUCTION                                                                   #
+################################################################################
+FROM base AS production
+
+
+ENV BUNDLE_WITHOUT=development:test
 
 COPY --chown=${UID}:${GID} . /app
-RUN bundle  install
+
+USER app
+
+RUN bundle install
 

Gemfile

@@ -1,8 +1,7 @@
 source "https://rubygems.org"
 
 group :development, :test do
-  gem "pry"
-  gem "pry-byebug"
+  gem "debug"
 end
 
 group :test do
@@ -13,4 +12,5 @@ end
 
 group :development do
   gem "standard"
+  gem "ruby-lsp"
 end

Gemfile.lock

@@ -0,0 +1,108 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    ast (2.4.2)
+    date (3.4.1)
+    debug (1.9.2)
+      irb (~> 1.10)
+      reline (>= 0.3.8)
+    diff-lcs (1.5.1)
+    docile (1.4.1)
+    io-console (0.8.0)
+    irb (1.14.2)
+      rdoc (>= 4.0.0)
+      reline (>= 0.4.2)
+    json (2.9.0)
+    language_server-protocol (3.17.0.3)
+    lint_roller (1.1.0)
+    logger (1.6.3)
+    parallel (1.26.3)
+    parser (3.3.6.0)
+      ast (~> 2.4.1)
+      racc
+    prism (1.2.0)
+    psych (5.2.1)
+      date
+      stringio
+    racc (1.8.1)
+    rainbow (3.1.1)
+    rbs (3.7.0)
+      logger
+    rdoc (6.9.0)
+      psych (>= 4.0.0)
+    regexp_parser (2.9.3)
+    reline (0.6.0)
+      io-console (~> 0.5)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.2)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.2)
+    rubocop (1.69.2)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.36.2, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.37.0)
+      parser (>= 3.3.1.0)
+    rubocop-performance (1.23.0)
+      rubocop (>= 1.48.1, < 2.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+    ruby-lsp (0.22.1)
+      language_server-protocol (~> 3.17.0)
+      prism (>= 1.2, < 2.0)
+      rbs (>= 3, < 4)
+      sorbet-runtime (>= 0.5.10782)
+    ruby-progressbar (1.13.0)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.13.1)
+    simplecov-lcov (0.8.0)
+    simplecov_json_formatter (0.1.4)
+    sorbet-runtime (0.5.11691)
+    standard (1.43.0)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.69.1)
+      standard-custom (~> 1.0.0)
+      standard-performance (~> 1.6)
+    standard-custom (1.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.50)
+    standard-performance (1.6.0)
+      lint_roller (~> 1.1)
+      rubocop-performance (~> 1.23.0)
+    stringio (3.1.2)
+    unicode-display_width (3.1.2)
+      unicode-emoji (~> 4.0, >= 4.0.4)
+    unicode-emoji (4.0.4)
+
+PLATFORMS
+  ruby
+  x86_64-linux
+
+DEPENDENCIES
+  debug
+  rspec
+  ruby-lsp
+  simplecov
+  simplecov-lcov
+  standard
+
+BUNDLED WITH
+   2.6.3

compose.yml

@@ -3,11 +3,11 @@ services:
     build: 
       context: .
       target: development
+      args:
+        UID: ${UID:-1000}
+        GID: ${GID:-1000}
     volumes:
       - .:/app
-      - gem_cache:/gems
     env_file:
       - .env
 
-volumes:
-  gem_cache:

env.example

@@ -1 +1,3 @@
+UID=YOUR_UID
+GID=YOUR_GID
 SEKRET="aweflweif;wltgi5t13o5i"

init.sh

@@ -3,6 +3,11 @@ if [ -f ".env" ]; then
 else
   echo "🌎 .env does not exist. Copying .env-example to .env"
   cp env.example .env
+  YOUR_UID=$(id -u)
+  YOUR_GID=$(id -g)
+  echo "🙂 Setting your UID (${YOUR_UID}) and GID (${YOUR_UID}) in .env"
+  docker run --rm -v ./.env:/.env alpine echo "$(sed s/YOUR_UID/${YOUR_UID}/ .env)" >.env
+  docker run --rm -v ./.env:/.env alpine echo "$(sed s/YOUR_GID/${YOUR_GID}/ .env)" >.env
 fi
 
 if [ -f ".git/hooks/pre-commit" ]; then