Installing Redmine on CentOS 7

Redmine is a free and open-source project management tool that allows teams to manage multiple projects, track issues, and collaborate on tasks. It is written in Ruby on Rails and provides a web-based interface for easy project management.

To install Redmine on CentOS 7, follow these steps:

1. Update your system:

   sudo yum update



2. Install the required dependencies:

   sudo yum install epel-release

   sudo yum install mysql-devel ImageMagick ImageMagick-devel gcc gpg openssl-devel libxml2-devel libxslt-devel readline-devel zlib-devel libcurl-devel



3. Install Ruby and Rubygems:

   sudo yum install ruby ruby-devel rubygems



4. Install the bundler gem:

   sudo gem install bundler



5. Download and extract the latest stable release of Redmine:

   sudo mkdir /opt/redmine

   sudo curl -L -o redmine.tar.gz https://www.redmine.org/releases/redmine-x.x.x.tar.gz

   sudo tar xzf redmine.tar.gz -C /opt/redmine --strip-components=1

   sudo rm redmine.tar.gz



6. Configure the database settings:

   cd /opt/redmine/config

   sudo cp database.yml.example database.yml

   sudo nano database.yml

   Replace the following lines:

   production:   adapter: sqlite3   database: /path/to/redmine/production.sqlite3

   With the following lines:

   production:   adapter: mysql2   database: redmine   host: localhost   username: redmine   password: mypassword

   Save and exit the file.



7. Install the required Ruby gems:

   cd /opt/redmine

   sudo bundle install --without development test



8. Generate a secret token:

   sudo bundle exec rake generate_secret_token



9. Run the database migration:

   sudo RAILS_ENV=production bundle exec rake db:migrate



10. Load default configurations:

    sudo RAILS_ENV=production bundle exec rake redmine:load_default_data



11. Create a systemd service file for Redmine:

    sudo nano /etc/systemd/system/redmine.service

    Add the following content:

    [Unit] Description=Redmine After=network.target  [Service] Type=simple User=root WorkingDirectory=/opt/redmine ExecStart=/usr/local/bin/bundle exec rails server -b 0.0.0.0 -e production Restart=always  [Install] WantedBy=multi-user.target

    Save and exit the file.



12. Start and enable the Redmine service:

    sudo systemctl start redmine

    sudo systemctl enable redmine



13. Access Redmine in your web browser using the following URL:

    http://your_server_ip:3000

Congratulations! You have successfully installed Redmine on your CentOS 7 server.