Redmine

To install Redmine on a local server (e.g., on https://localhost ), follow these steps. Redmine is a Ruby on Rails-based project management application, and it can be installed on various platforms. Here's a step-by-step guide:

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1. Step 1: Prerequisites
   Ensure you have the following installed:
   1. Ruby: Required for Redmine to run.
   - Install using a version manager like RVM or rbenv.
   - Ensure compatibility with Redmine's supported Ruby versions.
   2. Rails: The version must be compatible with Redmine.
   3. Database: Supported databases are MySQL, MariaDB, PostgreSQL, and SQLite. Install and set up the desired database.
   4. Bundler: Ruby gem for managing dependencies.

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1. Step 2: Install Dependencies
   Install essential packages:
   

   ```bash
   sudo apt update
   sudo apt install -y git curl build-essential libssl-dev libreadline-dev zlib1g-dev libsqlite3-dev
   ```
   

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1. Step 3: Download Redmine
   1. Clone the latest stable release from Redmine's official repository:
   

      ```bash
      git clone https://github.com/redmine/redmine.git
      cd redmine
      git checkout <stable-version>
      ```
      Replace `<stable-version>` with the desired stable branch (e.g., `5.0-stable`).
   

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1. Step 4: Configure the Database
   

   1. Copy the example database configuration:
      ```bash
      cp config/database.yml.example config/database.yml
      ```
   2. Edit `config/database.yml` to specify your database settings:
      ```yaml
      production:
        adapter: mysql2
        database: redmine_db
        host: localhost
        username: redmine_user
        password: "secure_password" 
        encoding: utf8
      ```
   

   Replace `mysql2` with the appropriate adapter if using PostgreSQL or SQLite.

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1. Step 5: Install Gems
   Install required Ruby gems:
   

   ```bash
   bundle install --without development test
   ```
   

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1. Step 6: Generate Secret Token
   Generate the secret key for session management:
   

   ```bash
   bundle exec rake generate_secret_token
   ```
   
   

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1. Step 7: Migrate Database
   Create and migrate the database schema:
   ```bash
   RAILS_ENV=production bundle exec rake db:create db:migrate
   ```

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1. Step 8: Install and Configure a Web Server
   1. Install Passenger or Puma to run Redmine:
   ```bash
   gem install passenger
   ```
   2. Configure your web server (e.g., Apache or Nginx) to serve Redmine at `https://localhost`.

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1. Step 9: Start the Application
   1. For development:
   ```bash
   bundle exec rails server -e production
   ```
   2. For production (with Passenger or Puma), follow specific server setup instructions.

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1. Step 10: Access Redmine
   Visit `https://localhost` in your browser to access Redmine. The default credentials are:
   - Username: `admin`
   - Password: `admin`

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