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@saiqulhaq saiqulhaq commented Jun 8, 2025

PR Type

Enhancement, Documentation


Description

Add Docker-based devcontainer with services
Include init and setup scripts for services
Configure VS Code settings, tasks, launch
Update README with Codespaces instructions


Changes walkthrough 📝

Relevant files
Configuration changes
11 files
Dockerfile
Configure devcontainer Dockerfile with services                   
+39/-0   
database.yml
Add PostgreSQL database configuration                                       
+15/-0   
devcontainer.json
Setup devcontainer JSON customization                                       
+94/-0   
init-services.sh
Script to start PostgreSQL and Redis                                         
+20/-0   
setup-environment.sh
Setup gems, DB, Redis, JS dependencies                                     
+48/-0   
start-postgresql.sh
Add PostgreSQL startup and setup script                                   
+23/-0   
start-redis.sh
Add Redis startup script                                                                 
+18/-0   
validate-devcontainer.yml
Add devcontainer validation CI workflow                                   
+21/-0   
launch.json
Add VS Code debug launch configurations                                   
+32/-0   
settings.json
Define VS Code editor and Ruby settings                                   
+32/-0   
tasks.json
Add VS Code tasks for Rails workflows                                       
+85/-0   
Documentation
2 files
on-create-command.sh
Add welcome and usage instructions                                             
+22/-0   
README.md
Update README with devcontainer and Codespaces docs           
+63/-0   
Formatting
1 files
.rubocop.yml
Configure RuboCop rules for project                                           
+28/-0   

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  • Summary by CodeRabbit

    • New Feature: Introduced a comprehensive Docker-based development environment setup for Ruby on Rails with PostgreSQL and Redis. This includes all necessary dependencies, services setup, and environment configuration.
    • New Feature: Added VS Code configurations for debugging, task running, and editor preferences to enhance the development experience.
    • Documentation: Updated README with instructions for setting up and using the new development environment in GitHub Codespaces.
    • Chore: Implemented a GitHub Actions workflow to validate the devcontainer configuration on every push and pull request.
    • Style: Updated RuboCop rules to enforce code style and quality standards.

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    github-actions bot commented Jun 8, 2025

    Image description CodeRabbit

    Walkthrough

    This change introduces a comprehensive development environment setup for a Ruby on Rails project using Docker and VS Code Devcontainers. It includes configurations for PostgreSQL, Redis, RuboCop, and GitHub Actions. Additionally, it provides instructions for working with GitHub Codespaces.

    Changes

    Files Summary
    .devcontainer/*, .github/workflows/validate-devcontainer.yml, .gitignore These changes set up a Docker-based development environment with Ruby, PostgreSQL, Redis, and necessary dependencies. They also include scripts to start services, install gems, and configure the database. A GitHub Actions workflow is added to validate the devcontainer configuration.
    .rubocop.yml, .vscode/* These files introduce RuboCop configurations and VS Code settings for debugging, tasks, and editor preferences. They provide a streamlined development experience within the containerized environment.
    README.md This file has been updated with instructions for developing with GitHub Codespaces, providing a consistent environment for all developers.

    🐇💻

    "In the land of code where the shadows lie,

    Docker containers sail the sky.

    With Ruby's glow and Postgres' might,

    Redis shines in the darkest night.

    RuboCop guards with stern gaze,

    While GitHub Actions set the stage.

    In this realm, we take our stance,

    Coding together in a merry dance!" 🎉🕺💃


    Uplevel your code reviews with CodeRabbit Pro

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    github-actions bot commented Jun 8, 2025

    PR Reviewer Guide 🔍

    Here are some key observations to aid the review process:

    ⏱️ Estimated effort to review: 3 🔵🔵🔵⚪⚪
    🧪 No relevant tests
    🔒 No security concerns identified
    ⚡ Recommended focus areas for review

    RuboCop TargetMismatch

    TargetRubyVersion in RuboCop config is set to 2.7 but the dev container uses Ruby 3.2, potentially causing linting issues.

    TargetRubyVersion: 2.7
    Duplicate Sections

    README contains repeated "Development with GitHub Codespaces" sections; consider consolidating to avoid redundancy.

    ## Development with GitHub Codespaces
    
    This project is configured to work with GitHub Codespaces, providing a consistent development environment.
    
    ### Opening in Codespaces
    
    1. Navigate to the GitHub repository
    2. Click the "Code" button
    3. Select the "Codespaces" tab
    4. Click "Create codespace on main"
    
    ### Development in Codespaces
    
    Once the Codespace is created and set up:
    
    1. The container includes Ruby 3.2, PostgreSQL, Redis, and other dependencies
    2. Run the test suite: `cd test/dummy && bin/rails test`
    3. Start the Rails server: `cd test/dummy && bin/rails server`
    4. Access the application at the GitHub Codespaces forwarded port (usually port 3000)

    Development with GitHub Codespaces

    This project is configured to work with GitHub Codespaces, providing a consistent development environment.

    
    </details>
    
    <details><summary><a href='https://github.com/saiqulhaq/dynamic_links/pull/97/files#diff-13bd9d7a30bf46656bc81f1ad5b908a627f9247be3f7d76df862b0578b534fc6R39-R39'><strong>User Context</strong></a>
    
    Dockerfile switches back to root at the end, which may conflict with the remoteUser setting in devcontainer.json and expected non-root operations.
    </summary>
    
    ```txt
    USER root
    

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    Image description CodeRabbit

    Commits Files that changed from the base of the PR and between 066f4d4 and 81b0c78 commits.
    Files selected (15)
    • .devcontainer/Dockerfile (1)
    • .devcontainer/database.yml (1)
    • .devcontainer/devcontainer.json (1)
    • .devcontainer/init-services.sh (1)
    • .devcontainer/on-create-command.sh (1)
    • .devcontainer/setup-environment.sh (1)
    • .devcontainer/start-postgresql.sh (1)
    • .devcontainer/start-redis.sh (1)
    • .github/workflows/validate-devcontainer.yml (1)
    • .gitignore (1)
    • .rubocop.yml (1)
    • .vscode/launch.json (1)
    • .vscode/settings.json (1)
    • .vscode/tasks.json (1)
    • README.md (1)
    Files skipped from review due to trivial changes (2)
    • .vscode/launch.json
    • .vscode/settings.json
    Review comments generated (21)
    • Review: 10
    • LGTM: 11

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    Comment on lines 1 to 15
    default: &default
    adapter: postgresql
    encoding: unicode
    host: localhost
    username: vscode
    password: vscode
    pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>

    development:
    <<: *default
    database: dynamic_links_development

    test:
    <<: *default
    database: dynamic_links_test
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    Image description CodeRabbit

    The database configuration seems fine, but hardcoding the username and password is not a good practice. It's better to use environment variables for these sensitive data. Here's how you can do it:

      host: localhost
    -5:   username: vscode
    -6:   password: vscode
    +5:   username: <%= ENV['DB_USERNAME'] %>
    +6:   password: <%= ENV['DB_PASSWORD'] %>
      pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>

    Remember to add DB_USERNAME and DB_PASSWORD to your environment variables.

    Comment on lines 1 to 94
    {
    "name": "Ruby on Rails Dynamic Links",
    "dockerFile": "Dockerfile",
    "forwardPorts": [3000, 6379, 5432],
    "customizations": {
    "vscode": {
    "settings": {
    "terminal.integrated.defaultProfile.linux": "bash",
    "editor.formatOnSave": true,
    "ruby.useBundler": true,
    "ruby.useLanguageServer": true,
    "ruby.lint": {
    "rubocop": true
    },
    "editor.tabSize": 2,
    "files.associations": {
    "*.erb": "erb",
    "Gemfile": "ruby",
    "Rakefile": "ruby",
    "*.rake": "ruby"
    },
    "[ruby]": {
    "editor.tabSize": 2,
    "editor.insertSpaces": true
    },
    "ruby.format": "rubocop",
    "sqltools.connections": [
    {
    "name": "PostgreSQL",
    "driver": "PostgreSQL",
    "server": "localhost",
    "port": 5432,
    "username": "vscode",
    "password": "vscode",
    "database": "dynamic_links_development"
    }
    ]
    },
    "extensions": [
    "rebornix.ruby",
    "castwide.solargraph",
    "kaiwood.endwise",
    "aliariff.vscode-erb-beautify",
    "misogi.ruby-rubocop",
    "wingrunr21.vscode-ruby",
    "editorconfig.editorconfig",
    "davidanson.vscode-markdownlint",
    "esbenp.prettier-vscode",
    "mtxr.sqltools",
    "mtxr.sqltools-driver-pg",
    "eamodio.gitlens",
    "streetsidesoftware.code-spell-checker",
    "donjayamanne.githistory",
    "aki77.rails-db-schema"
    ]
    }
    },
    "postCreateCommand": "bash .devcontainer/setup-environment.sh",
    "postStartCommand": "bash .devcontainer/on-create-command.sh && bash .devcontainer/init-services.sh",
    "features": {
    "ghcr.io/devcontainers/features/common-utils:2": {
    "installZsh": true,
    "installOhMyZsh": true,
    "upgradePackages": true
    },
    "ghcr.io/devcontainers/features/github-cli:1": {},
    "ghcr.io/devcontainers/features/node:1": {
    "version": "lts"
    },
    "ghcr.io/devcontainers/features/ruby:1": {
    "version": "3.2"
    }
    },
    "portsAttributes": {
    "3000": {
    "label": "Rails Server",
    "onAutoForward": "notify"
    },
    "5432": {
    "label": "PostgreSQL",
    "onAutoForward": "silent"
    },
    "6379": {
    "label": "Redis",
    "onAutoForward": "silent"
    }
    },
    "waitFor": "postCreateCommand",
    "updateContentCommand": "bundle install",
    "remoteUser": "vscode",
    "containerEnv": {
    "RAILS_ENV": "development"
    }
    }
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    Image description CodeRabbit

    The devcontainer.json file seems to be well configured. It includes the necessary settings for a Ruby on Rails development environment, including the setup of PostgreSQL and Redis services, installation of necessary dependencies like Yarn, Ruby gems, and environment setup for Rails. The database configuration for development and test environments has been updated.

    However, I noticed that you are hardcoding the database credentials (username, password) in the devcontainer.json file (lines 33-34). This could potentially lead to security issues if this file is committed to a public repository. Consider using environment variables for these sensitive data.

                "server": "localhost",
                "port": 5432,
    -33:             "username": "vscode",
    -34:             "password": "vscode",
    +33:             "username": "${DB_USERNAME}",
    +34:             "password": "${DB_PASSWORD}",
                "database": "dynamic_links_development"

    You would then need to ensure these environment variables (DB_USERNAME, DB_PASSWORD) are properly set in your development environment.

    Comment on lines 14 to 23
    # VS Code and Devcontainer specific
    .vscode/*
    !.vscode/settings.json
    !.vscode/tasks.json
    !.vscode/launch.json
    !.vscode/extensions.json
    *.code-workspace

    # Local History for Visual Studio Code
    .history/
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    Image description CodeRabbit

    The changes made to the .gitignore file are appropriate. It's a good practice to ignore files that are specific to your local development environment like VS Code settings and Local History for Visual Studio Code. However, you have excluded some of the .vscode/ directory files (settings.json, tasks.json, launch.json, extensions.json) from being ignored. If these files contain configurations that are necessary for every developer working on this project, then it's fine. But if they contain user-specific settings, they should be included in the .gitignore.

    # VS Code and Devcontainer specific
    .vscode/*
    -16: !.vscode/settings.json
    -17: !.vscode/tasks.json
    -18: !.vscode/launch.json
    -19: !.vscode/extensions.json
    *.code-workspace
    
    # Local History for Visual Studio Code
    .history/

    If the settings are necessary for all developers, consider documenting them in the README or a separate documentation file instead of including them in the repository.

    Comment on lines 1 to 85
    {
    "version": "2.0.0",
    "tasks": [
    {
    "label": "Rails: Run Server",
    "type": "shell",
    "command": "cd test/dummy && bin/rails server",
    "group": "none",
    "presentation": {
    "reveal": "always",
    "panel": "new"
    },
    "problemMatcher": []
    },
    {
    "label": "Rails: Run Console",
    "type": "shell",
    "command": "cd test/dummy && bin/rails console",
    "group": "none",
    "presentation": {
    "reveal": "always",
    "panel": "new"
    },
    "problemMatcher": []
    },
    {
    "label": "Run Tests",
    "type": "shell",
    "command": "cd test/dummy && bin/rails test",
    "group": {
    "kind": "test",
    "isDefault": true
    },
    "presentation": {
    "reveal": "always",
    "panel": "new"
    },
    "problemMatcher": []
    },
    {
    "label": "Run RuboCop",
    "type": "shell",
    "command": "bundle exec rubocop",
    "group": "test",
    "presentation": {
    "reveal": "always",
    "panel": "new"
    },
    "problemMatcher": []
    },
    {
    "label": "Rails: Migrate Database",
    "type": "shell",
    "command": "cd test/dummy && bin/rails db:migrate",
    "group": "none",
    "presentation": {
    "reveal": "always",
    "panel": "new"
    },
    "problemMatcher": []
    },
    {
    "label": "Run Redis Server",
    "type": "shell",
    "command": "redis-server",
    "group": "none",
    "presentation": {
    "reveal": "always",
    "panel": "new"
    },
    "problemMatcher": []
    },
    {
    "label": "Run Sidekiq",
    "type": "shell",
    "command": "cd test/dummy && bundle exec sidekiq",
    "group": "none",
    "presentation": {
    "reveal": "always",
    "panel": "new"
    },
    "problemMatcher": []
    }
    ]
    }
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    Image description CodeRabbit

    The tasks defined in the .vscode/tasks.json file seem to be well structured and follow good practices. However, I noticed that all tasks have an empty problemMatcher array. The problemMatcher is used by VS Code to parse the output of a task for errors and warnings, which can then be highlighted in the Problems panel. If your tasks produce output that can be parsed for errors or warnings, consider adding appropriate problem matchers.

    For example, if your "Run RuboCop" task produces output in a format that can be parsed by a built-in problem matcher like $ruby-lint, you could update it as follows:

        {
          "label": "Run RuboCop",
          "type": "shell",
          "command": "bundle exec rubocop",
          "group": "test",
          "presentation": {
            "reveal": "always",
            "panel": "new"
          },
    - 49:       "problemMatcher": []
    + 49:       "problemMatcher": ["$ruby-lint"]
        },

    This would allow VS Code to highlight any linting issues directly in the Problems panel. You can do similar adjustments for other tasks if their output can be parsed for errors or warnings.

    Comment on lines 7 to 13

    # Install additional dependencies
    RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
    && apt-get -y install build-essential git curl libssl-dev libreadline-dev \
    zlib1g-dev autoconf bison libyaml-dev libncurses5-dev libffi-dev libgdbm-dev \
    graphviz imagemagick nodejs npm sqlite3 redis-server \
    && apt-get clean -y && rm -rf /var/lib/apt/lists/*
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    Image description CodeRabbit

    While installing dependencies, it's a good practice to combine related packages together. This makes the Dockerfile more readable and maintainable. For example, build-essential, git, and curl are general utilities, while libssl-dev, libreadline-dev, zlib1g-dev, autoconf, bison, libyaml-dev, libncurses5-dev, libffi-dev, libgdbm-dev are development libraries. Also, nodejs, npm, sqlite3, redis-server are services.

    -    && apt-get -y install build-essential git curl libssl-dev libreadline-dev \
    -    zlib1g-dev autoconf bison libyaml-dev libncurses5-dev libffi-dev libgdbm-dev \
    -    graphviz imagemagick nodejs npm sqlite3 redis-server \
    +    && apt-get -y install build-essential git curl \
    +    && apt-get -y install libssl-dev libreadline-dev zlib1g-dev autoconf bison libyaml-dev libncurses5-dev libffi-dev libgdbm-dev \
    +    && apt-get -y install graphviz imagemagick nodejs npm sqlite3 redis-server \

    Comment on lines 17 to 26

    # Set up PostgreSQL service
    RUN mkdir -p /etc/service/postgresql
    COPY ./start-postgresql.sh /etc/service/postgresql/run
    RUN chmod +x /etc/service/postgresql/run

    # Set up Redis service
    RUN mkdir -p /etc/service/redis
    COPY ./start-redis.sh /etc/service/redis/run
    RUN chmod +x /etc/service/redis/run
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    Image description CodeRabbit

    It's better to use a process manager like supervisord for managing multiple services in a Docker container. Running PostgreSQL and Redis as services within the Docker container is not recommended because if one of these services fails, the Docker container will continue running, making it hard to detect the failure.

    Comment on lines 34 to 35
    # Set default Rails environment
    ENV RAILS_ENV=development
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    Image description CodeRabbit

    Setting the Rails environment variable to "development" in the Dockerfile might not be flexible enough. It would be better to set this variable in the docker-compose file or pass it as an argument when running the Docker container. This way, you can use the same Dockerfile for different environments (development, test, production).

    README.md Outdated
    Comment on lines 24 to 43
    ## Development with GitHub

    This project is configured to work with GitHub development containers, providing a consistent development environment.

    ### Opening in GitHub Development Container

    1. Navigate to the GitHub repository
    2. Click the "Code" button
    3. Select the "Codespaces" tab
    4. Click "Create codespace on main"

    ### Development in the Container

    Once the development container is created and set up:

    1. The container includes Ruby 3.2, PostgreSQL, Redis, and other dependencies
    2. Run the test suite: `cd test/dummy && bin/rails test`
    3. Start the Rails server: `cd test/dummy && bin/rails server`
    4. Access the application at the forwarded port (usually port 3000)
    ```
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    Image description CodeRabbit

    The instructions for development with GitHub seem to be duplicated in the sections for GitHub Codespaces. It's important to keep documentation concise and avoid repetition to prevent confusion.

    - ## Development with GitHub
    - 
    - This project is configured to work with GitHub development containers, providing a consistent development environment.
    - 
    - ### Opening in GitHub Development Container
    - 
    - 1. Navigate to the GitHub repository
    - 2. Click the "Code" button
    - 3. Select the "Codespaces" tab
    - 4. Click "Create codespace on main"
    - 
    - ### Development in the Container
    - 
    - Once the development container is created and set up:
    - 
    - 1. The container includes Ruby 3.2, PostgreSQL, Redis, and other dependencies
    - 2. Run the test suite: `cd test/dummy && bin/rails test`
    - 3. Start the Rails server: `cd test/dummy && bin/rails server`
    - 4. Access the application at the forwarded port (usually port 3000)
    - ```

    README.md Outdated
    Comment on lines 66 to 84
    ## Development with GitHub Codespaces

    This project is configured to work with GitHub Codespaces, providing a consistent development environment.

    ### Opening in Codespaces

    1. Navigate to the GitHub repository
    2. Click the "Code" button
    3. Select the "Codespaces" tab
    4. Click "Create codespace on main"

    ### Development in Codespaces

    Once the Codespace is created and set up:

    1. The container includes Ruby 3.2, PostgreSQL, Redis, and other dependencies
    2. Run the test suite: `cd test/dummy && bin/rails test`
    3. Start the Rails server: `cd test/dummy && bin/rails server`
    4. Access the application at the Codespaces forwarded port (usually port 3000)
    Copy link

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    Image description CodeRabbit

    This section is also a duplicate of the previous instructions for development with GitHub Codespaces. Please remove it to maintain clarity and brevity in the documentation.

    - ## Development with GitHub Codespaces
    - 
    - This project is configured to work with GitHub Codespaces, providing a consistent development environment.
    - 
    - ### Opening in Codespaces
    - 
    - 1. Navigate to the GitHub repository
    - 2. Click the "Code" button
    - 3. Select the "Codespaces" tab
    - 4. Click "Create codespace on main"
    - 
    - ### Development in Codespaces
    - 
    - Once the Codespace is created and set up:
    - 
    - 1. The container includes Ruby 3.2, PostgreSQL, Redis, and other dependencies
    - 2. Run the test suite: `cd test/dummy && bin/rails test`
    - 3. Start the Rails server: `cd test/dummy && bin/rails server`
    - 4. Access the application at the Codespaces forwarded port (usually port 3000)
    - end
    - ```
    
    
    <!-- This is an auto-generated comment by OSS CodeRabbit -->

    Comment on lines 1 to 48
    #!/bin/bash
    set -e

    echo "Setting up development environment..."

    # Install required gems
    echo "Installing Ruby gems..."
    bundle install

    # Copy database configuration if it doesn't exist
    if [ ! -f /workspaces/dynamic_links/test/dummy/config/database.yml ]; then
    mkdir -p /workspaces/dynamic_links/test/dummy/config
    cp /workspaces/dynamic_links/.devcontainer/database.yml /workspaces/dynamic_links/test/dummy/config/
    echo "Database configuration copied."
    fi

    # Create .env file for development if it doesn't exist
    if [ ! -f /workspaces/dynamic_links/test/dummy/.env ]; then
    cat > /workspaces/dynamic_links/test/dummy/.env << EOF
    RAILS_ENV=development
    DATABASE_URL=postgres://vscode:vscode@localhost/dynamic_links_development
    REDIS_URL=redis://localhost:6379/1
    EOF
    echo "Environment configuration created."
    fi

    # Set up the database
    echo "Setting up the database..."
    cd /workspaces/dynamic_links/test/dummy
    bin/rails db:setup || echo "Database setup failed, you may need to create it manually"

    # Ensure Redis is running
    echo "Checking Redis status..."
    service redis-server status || service redis-server start
    redis-cli ping || echo "Redis may not be running properly"

    # Install JS dependencies if package.json exists
    if [ -f /workspaces/dynamic_links/test/dummy/package.json ]; then
    echo "Installing JavaScript dependencies..."
    cd /workspaces/dynamic_links/test/dummy && yarn install
    fi

    # Set up Solargraph for code intelligence
    echo "Setting up Solargraph for Ruby code intelligence..."
    gem install solargraph
    solargraph bundle

    echo "Setup completed successfully. You can now run 'cd test/dummy && bin/rails server' to start the development server."
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    Image description CodeRabbit

    The script seems to be well written and covers all the necessary steps for setting up the development environment. However, there are a few improvements that could be made:

    1. The script assumes that the PostgreSQL and Redis services are already running. It would be better to check if these services are running before proceeding with the setup.

    2. The script is tightly coupled with the project structure (/workspaces/dynamic_links/test/dummy). If the project structure changes in the future, this script will break. Consider parameterizing the project path or deriving it dynamically.

    3. The database setup failure message suggests manual creation of the database but does not provide any instructions on how to do so. It would be helpful to include those instructions or a link to them.

    4. The script installs Solargraph every time it runs. This can slow down the setup process. Consider checking if Solargraph is already installed before attempting to install it.

    Here's an improved version of the script:

    #!/bin/bash
    set -e
    
    echo "Setting up development environment..."
    
    # Install required gems
    echo "Installing Ruby gems..."
    bundle install
    
    # Copy database configuration if it doesn't exist
    if [ ! -f /workspaces/dynamic_links/test/dummy/config/database.yml ]; then
      mkdir -p /workspaces/dynamic_links/test/dummy/config
      cp /workspaces/dynamic_links/.devcontainer/database.yml /workspaces/dynamic_links/test/dummy/config/
      echo "Database configuration copied."
    fi
    
    # Create .env file for development if it doesn't exist
    if [ ! -f /workspaces/dynamic_links/test/dummy/.env ]; then
      cat > /workspaces/dynamic_links/test/dummy/.env << EOF
    RAILS_ENV=development
    DATABASE_URL=postgres://vscode:vscode@localhost/dynamic_links_development
    REDIS_URL=redis://localhost:6379/1
    EOF
      echo "Environment configuration created."
    fi
    
    # Check if PostgreSQL and Redis services are running
    echo "Checking PostgreSQL and Redis status..."
    pg_isready || echo "PostgreSQL is not running"
    redis-cli ping || echo "Redis is not running"
    31:
    # Set up the database
    echo "Setting up the database..."
    cd /workspaces/dynamic_links/test/dummy
    bin/rails db:setup || echo "Database setup failed, please refer to the documentation for manual setup instructions"
    
    # Ensure Redis is running
    echo "Checking Redis status..."
    service redis-server status || service redis-server start
    redis-cli ping || echo "Redis may not be running properly"
    
    # Install JS dependencies if package.json exists
    if [ ! -f /workspaces/dynamic_links/test/dummy/package.json ]; then
      echo "Installing JavaScript dependencies..."
      cd /workspaces/dynamic_links/test/dummy && yarn install
    fi
    
    # Set up Solargraph for code intelligence
    echo "Setting up Solargraph for Ruby code intelligence..."
    if ! gem list solargraph -i > /dev/null; then
      gem install solargraph
    fi
    solargraph bundle
    
    echo "Setup completed successfully. You can now run 'cd test/dummy && bin/rails server' to start the development server."

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    PR Code Suggestions ✨

    Explore these optional code suggestions:

    CategorySuggestion                                                                                                                                    Impact
    Security
    Run container as non-root

    Switching back to root at the end overrides the non-root vscode user context. Use
    the vscode user as the final user to avoid running commands as root.

    .devcontainer/Dockerfile [39]

    -USER root
    +USER vscode
    Suggestion importance[1-10]: 8

    __

    Why: Defaulting back to root at the end of the Dockerfile defeats the non-root vscode context and poses a security risk.

    Medium
    General
    Update Ruby version

    The configured Ruby target version in RuboCop is out of sync with the container’s
    Ruby 3.2 runtime. Update this to avoid mismatches and linting errors.

    .rubocop.yml [2]

    -TargetRubyVersion: 2.7
    +TargetRubyVersion: 3.2
    Suggestion importance[1-10]: 7

    __

    Why: The TargetRubyVersion: 2.7 in .rubocop.yml mismatches the container’s Ruby 3.2 runtime and should be bumped to avoid linting errors.

    Medium
    Use environment variables

    Hardcoding credentials in version control is insecure. Reference environment
    variables for the database username and password to allow overrides and avoid
    leaking secrets.

    .devcontainer/database.yml [5-6]

    -username: vscode
    -password: vscode
    +username: <%= ENV.fetch("DB_USER", "vscode") %>
    +password: <%= ENV.fetch("DB_PASSWORD", "vscode") %>
    Suggestion importance[1-10]: 5

    __

    Why: Hardcoding username and password in database.yml prevents credential overrides and can expose defaults to version control.

    Low

    saiqulhaq added 7 commits June 8, 2025 20:39
    The development environment has been restructured to use Docker Compose instead of a single container setup. This change provides better isolation and easier service management with dedicated containers for the app, PostgreSQL, and Redis.
    
    Key changes include:
    - New Dockerfile.compose for the main application container
    - Docker Compose configuration with three services (app, postgres, redis)
    - Updated devcontainer.json to use Docker Compose
    - New setup scripts for Docker Compose environment
    - Added documentation for Docker Compose setup
    - Modified VS Code tasks to support Docker Compose operations
    
    This improves development experience by:
    - Providing consistent environments across different platforms
    - Simplifying service management
    - Making it easier to reset/rebuild services
    - Better isolation between components
    - More flexible configuration through environment variables
    …pdate shortening strategy to use lowercase in configuration
    …eSQL; update database configurations and initialization scripts
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    • lib/dynamic_links/configuration.rb (1)
    • lib/dynamic_links/logger.rb (1)
    • test/dummy/config/initializers/dynamic_links.rb (1)
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    # Usage:
    # DynamicLinks.configure do |config|
    # config.shortening_strategy = :MD5 # or other strategy name, see StrategyFactory for available strategies
    # config.shortening_strategy = :md5 # or other strategy name, see StrategyFactory for available strategies

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    Image description CodeRabbit

    The change from :MD5 to :md5 is a good one as it aligns with the Ruby convention of using lowercase symbols. However, please ensure that the corresponding code that uses this configuration value also expects the symbol in lowercase.

    -    #       config.shortening_strategy = :MD5 # or other strategy name, see StrategyFactory for available strategies
    +    #       config.shortening_strategy = :md5 # or other strategy name, see StrategyFactory for available strategies

    Comment on lines +24 to +74
    ## Development Environment

    This project supports two development environment options: GitHub Codespaces and local Docker Compose.

    ### Option 1: GitHub Codespaces

    This project is configured to work with GitHub development containers, providing a consistent development environment.

    #### Opening in GitHub Codespaces

    1. Navigate to the GitHub repository
    2. Click the "Code" button
    3. Select the "Codespaces" tab
    4. Click "Create codespace on main"

    #### Development in the Codespace

    Once the development container is created and set up:

    1. The container includes Ruby 3.2, PostgreSQL, Redis, and other dependencies
    2. Run the test suite: `cd test/dummy && bin/rails test`
    3. Start the Rails server: `cd test/dummy && bin/rails server`

    ### Option 2: Local Development with Docker Compose

    For local development, we use Docker Compose with VS Code's Remote - Containers extension.

    #### Prerequisites

    1. Install [Docker](https://docs.docker.com/get-docker/)
    2. Install [VS Code](https://code.visualstudio.com/)
    3. Install the [Remote - Containers extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-containers)

    #### Opening in VS Code with Containers

    1. Clone the repository to your local machine
    2. Open the project folder in VS Code
    3. VS Code will detect the devcontainer configuration and prompt you to reopen in a container
    4. Click "Reopen in Container"

    #### Working with the Docker Compose Setup

    - The setup includes three services: app (Ruby), postgres (PostgreSQL), and redis (Redis)
    - Database and Redis connections are automatically configured
    - Use VS Code tasks (F1 -> "Tasks: Run Task") for common operations like:
    - Starting the Rails server
    - Running tests
    - Running the Rails console
    - Managing Docker Compose services

    For more details on the Docker Compose setup, refer to the [Docker Compose documentation](DOCKER_COMPOSE.md). 4. Access the application at the forwarded port (usually port 3000)

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    Image description CodeRabbit

    The instructions provided for setting up the development environment are clear and comprehensive. However, it would be beneficial to include a note about checking the status of the services (PostgreSQL, Redis) after starting them. This can help developers ensure that the services are running correctly before they start working on the application.

    + 5. Check the status of PostgreSQL and Redis to ensure they are running correctly.

    Comment on lines +14 to +30
    # VS Code and Devcontainer specific
    .vscode/*
    # Uncomment the following lines if these configurations contain user-specific settings
    # that shouldn't be shared with other developers
    #!.vscode/settings.json
    #!.vscode/tasks.json
    #!.vscode/launch.json
    #!.vscode/extensions.json
    # Comment out the following lines if you want to share project-specific configurations
    !.vscode/settings.json
    !.vscode/tasks.json
    !.vscode/launch.json
    !.vscode/extensions.json
    *.code-workspace

    # Local History for Visual Studio Code
    .history/

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    Image description CodeRabbit

    The changes to the .gitignore file seem appropriate. It's a good practice to ignore IDE-specific files that might interfere with other developers' environments. However, it's also important to share project-specific configurations, which is why you've chosen to exclude certain VS Code settings from being ignored. This will ensure that all developers working on this project have the same settings and tasks available to them, which can help maintain consistency across the development team.

    + # VS Code and Devcontainer specific
    + .vscode/*
    + # Uncomment the following lines if these configurations contain user-specific settings
    + # that shouldn't be shared with other developers
    + #!.vscode/settings.json
    + #!.vscode/tasks.json
    + #!.vscode/launch.json
    + #!.vscode/extensions.json
    + # Comment out the following lines if you want to share project-specific configurations
    + !.vscode/settings.json
    + !.vscode/tasks.json
    + !.vscode/launch.json
    + !.vscode/extensions.json
    + *.code-workspace
    + 
    + # Local History for Visual Studio Code
    + .history/

    This change should not affect the application's functionality or performance.

    Comment on lines +1 to +79
    {
    "name": "Ruby on Rails Dynamic Links",
    "dockerComposeFile": ["../docker-compose.yml"],
    "service": "app",
    "workspaceFolder": "/workspaces/dynamic_links",
    "forwardPorts": [3000, 6379, 5432],
    "customizations": {
    "vscode": {
    "settings": {
    "terminal.integrated.defaultProfile.linux": "bash",
    "editor.formatOnSave": true,
    "ruby.useBundler": true,
    "ruby.useLanguageServer": true,
    "ruby.lint": {
    "rubocop": true
    },
    "editor.tabSize": 2,
    "files.associations": {
    "*.erb": "erb",
    "Gemfile": "ruby",
    "Rakefile": "ruby",
    "*.rake": "ruby"
    },
    "[ruby]": {
    "editor.tabSize": 2,
    "editor.insertSpaces": true
    },
    "ruby.format": "rubocop",
    "sqltools.connections": [
    {
    "name": "PostgreSQL",
    "driver": "PostgreSQL",
    "server": "postgres",
    "port": 5432,
    "username": "postgres",
    "password": "postgres",
    "database": "dynamic_links_development"
    }
    ]
    },
    "extensions": [
    "rebornix.ruby",
    "castwide.solargraph",
    "kaiwood.endwise",
    "aliariff.vscode-erb-beautify",
    "misogi.ruby-rubocop",
    "wingrunr21.vscode-ruby",
    "editorconfig.editorconfig",
    "davidanson.vscode-markdownlint",
    "esbenp.prettier-vscode",
    "mtxr.sqltools",
    "mtxr.sqltools-driver-pg",
    "eamodio.gitlens",
    "streetsidesoftware.code-spell-checker",
    "donjayamanne.githistory",
    "aki77.rails-db-schema"
    ]
    }
    },
    "postCreateCommand": "sudo chown -R vscode /usr/local/bundle && bundle install && cd test/dummy # && bin/rails db:create db:migrate",
    "postStartCommand": "bash .devcontainer/on-create-command.sh",
    "portsAttributes": {
    "3000": {
    "label": "Rails Server",
    "onAutoForward": "notify"
    },
    "5432": {
    "label": "PostgreSQL",
    "onAutoForward": "silent"
    },
    "6379": {
    "label": "Redis",
    "onAutoForward": "silent"
    }
    },
    "waitFor": "postCreateCommand",
    "updateContentCommand": "sudo chown -R vscode /usr/local/bundle && bundle install",
    "remoteUser": "vscode"
    }

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    Image description CodeRabbit

    The devcontainer.json file seems to be well configured. It includes the necessary settings for a Ruby on Rails development environment, including RuboCop linting and formatting, SQLTools connections, and VS Code extensions. The Docker Compose service, workspace folder, and ports are correctly defined. Post-create and post-start commands are also specified.

    However, there's a potential security concern with the PostgreSQL connection configuration. The username and password are hardcoded as "postgres". This could pose a risk if this configuration is used in a production environment or if the codebase is public, as it exposes default credentials. Consider using environment variables for these values instead.

            "sqltools.connections": [
              {
                "name": "PostgreSQL",
                "driver": "PostgreSQL",
                "server": "postgres",
                "port": 5432,
    -35:             "username": "postgres",
    -36:             "password": "postgres",
    +35:             "username": "${env:POSTGRES_USER}",
    +36:             "password": "${env:POSTGRES_PASSWORD}",
                "database": "dynamic_links_development"
              }
            ]

    This change will allow you to set the POSTGRES_USER and POSTGRES_PASSWORD environment variables in your local environment or in a .env file, which should not be committed to the repository.

    Comment on lines +2 to +8
    config.shortening_strategy = if ENV['SHORTENING_STRATEGY'].present?
    ENV['SHORTENING_STRATEGY'].to_sym
    else
    # add Logger to warn if the strategy is using the default
    DynamicLinks::Logger.log_warn("Using default shortening strategy: #{DynamicLinks::Configuration::DEFAULT_SHORTENING_STRATEGY}")
    DynamicLinks::Configuration::DEFAULT_SHORTENING_STRATEGY
    end

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    Image description CodeRabbit

    The configuration setup for shortening_strategy has been improved to handle cases where the environment variable SHORTENING_STRATEGY is not set. In such cases, a warning is logged and the default shortening strategy is used. This is a good practice as it provides a fallback and informs the user about the use of the default strategy.

    -  config.shortening_strategy = ENV['SHORTENING_STRATEGY'].to_sym
    +  config.shortening_strategy = if ENV['SHORTENING_STRATEGY'].present?
    +                                  ENV['SHORTENING_STRATEGY'].to_sym
    +                                else
    +                                  # add Logger to warn if the strategy is using the default
    +                                  DynamicLinks::Logger.log_warn("Using default shortening strategy: #{DynamicLinks::Configuration::DEFAULT_SHORTENING_STRATEGY}")
    +                                  DynamicLinks::Configuration::DEFAULT_SHORTENING_STRATEGY
    +                                end

    However, please ensure that the DynamicLinks::Logger.log_warn method exists and works as expected. If it doesn't, you might want to replace it with a standard Ruby logger like so:

    - DynamicLinks::Logger.log_warn("Using default shortening strategy: #{DynamicLinks::Configuration::DEFAULT_SHORTENING_STRATEGY}")
    + Rails.logger.warn("Using default shortening strategy: #{DynamicLinks::Configuration::DEFAULT_SHORTENING_STRATEGY}")

    Comment on lines +13 to +21
    ActiveRecord::Schema[7.2].define(version: 2024_01_28_030419) do
    create_schema "citus"
    create_schema "citus_internal"
    create_schema "columnar"
    create_schema "columnar_internal"

    # These are extensions that must be enabled in order to support this database
    enable_extension "citus"
    enable_extension "citus_columnar"

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    Image description CodeRabbit

    The schema version has been updated from 7.1 to 7.2, and several new schemas and extensions have been added. Ensure that these changes are compatible with your current database setup and that the necessary permissions for creating schemas and enabling extensions are in place.

    - ActiveRecord::Schema[7.1].define(version: 2024_01_28_030419) do
    + ActiveRecord::Schema[7.2].define(version: 2024_01_28_030419) do
    +   create_schema "citus"
    +   create_schema "citus_internal"
    +   create_schema "columnar"
    +   create_schema "columnar_internal"
    +   enable_extension "citus"
    +   enable_extension "citus_columnar"

    Comment on lines +36 to +37
    create_table "dynamic_links_shortened_urls", force: :cascade do |t|
    t.bigint "client_id"

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    Image description CodeRabbit

    The primary key of the dynamic_links_shortened_urls table has been changed from a composite key (id, client_id) to a default single column key. This change will affect any queries or associations that rely on the old primary key. Make sure to update them accordingly.

    - create_table "dynamic_links_shortened_urls", primary_key: ["id", "client_id"], force: :cascade do |t|
    -   t.bigserial "id", null: false
    -   t.bigint "client_id", null: false
    + create_table "dynamic_links_shortened_urls", force: :cascade do |t|
    +   t.bigint "client_id"

    @saiqulhaq saiqulhaq merged commit 0390210 into main Jun 16, 2025
    3 of 4 checks passed
    @saiqulhaq saiqulhaq deleted the chore/setup-devcontainer branch June 16, 2025 03:18
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    Commits Files that changed from the base of the PR and between 329b4bf and 641a757 commits.
    Files selected (1)
    • README.md (1)
    Files not summarized due to errors (1)
    • README.md (diff tokens exceeds limit)
    Review comments generated (2)
    • Review: 1
    • LGTM: 1

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    Comment on lines 24 to +76

    ## Development Environment

    This project supports two development environment options: GitHub Codespaces and local Docker Compose.

    ### Option 1: GitHub Codespaces

    This project is configured to work with GitHub development containers, providing a consistent development environment.

    #### Opening in GitHub Codespaces

    1. Navigate to the GitHub repository
    2. Click the "Code" button
    3. Select the "Codespaces" tab
    4. Click "Create codespace on main"

    #### Development in the Codespace

    Once the development container is created and set up:

    1. The container includes Ruby 3.2, PostgreSQL, Redis, and other dependencies
    2. Run the test suite: `cd test/dummy && bin/rails test`
    3. Start the Rails server: `cd test/dummy && bin/rails server`

    ### Option 2: Local Development with Docker Compose

    For local development, we use Docker Compose with VS Code's Remote - Containers extension.

    #### Prerequisites

    1. Install [Docker](https://docs.docker.com/get-docker/)
    2. Install [VS Code](https://code.visualstudio.com/)
    3. Install the [Remote - Containers extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-containers)

    #### Opening in VS Code with Containers

    1. Clone the repository to your local machine
    2. Open the project folder in VS Code
    3. VS Code will detect the devcontainer configuration and prompt you to reopen in a container
    4. Click "Reopen in Container"

    #### Working with the Docker Compose Setup

    - The setup includes three services: app (Ruby), postgres (PostgreSQL), and redis (Redis)
    - Database and Redis connections are automatically configured
    - Use VS Code tasks (F1 -> "Tasks: Run Task") for common operations like:
    - Starting the Rails server
    - Running tests
    - Running the Rails console
    - Managing Docker Compose services

    For more details on the Docker Compose setup, refer to the [Docker Compose documentation](DOCKER_COMPOSE.md). 4. Access the application at the forwarded port (usually port 3000)

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    The reason will be displayed to describe this comment to others. Learn more.

    Image description CodeRabbit

    The instructions provided for setting up the development environment are clear and detailed. However, it would be beneficial to include a troubleshooting section or FAQ to address common issues that might arise during setup.

    For more details on the Docker Compose setup, refer to the [Docker Compose documentation](DOCKER_COMPOSE.md). 4. Access the application at the forwarded port (usually port 3000)
    + 
    + ### Troubleshooting
    + 
    + If you encounter any issues while setting up the development environment, please refer to our [Troubleshooting Guide](TROUBLESHOOTING.md).
    
    ### Shortening a URL

    This will help developers find solutions to common problems without having to reach out for support, improving the overall developer experience.

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