Self_Signed Certificate Generate for GitLab

1. Create Private Key

  # openssl genrsa -des3 -out /etc/gitlab/ssl/gitlab.domain.com.key 2048
      
2. Create Certificate Request

# openssl req -nodes -newkey rsa:2048 -keyout gitlab.domain.com.key -out gitlab.domain.com.csr


    Enter Country Name US
    Enter State or Province Full Name
    Enter City Name
    Enter Organization Name
    Enter Company Name
    Enter Organizational Unit Name
    Enter server hostname i.e. URL gitlab.domain.com
    Enter Admin Email Address
    Skip Challenge Password (Hit Enter)
    Skip Optional Company Name (Hit Enter)

3. Remove Pass Phrase from Private Key

     # cp -v /etc/gitlab/ssl/gitlab.domain.com.{key,original}

    # openssl rsa -in /etc/gitlab/ssl/gitlab.domain.com.original -out /etc/gitlab/ssl/gitlab.domain.com.key

   # rm -v /etc/gitlab/ssl/gitlab.domain.com.original

4. Create Certificate 
  
   # openssl x509 -req -days 1460 -in /etc/gitlab/ssl/gitlab.domain.com.csr -signkey /etc/gitlab/ssl/gitlab.domain.com.key -out /etc/gitlab/ssl/gitlab.domain.com.crt

5. Remove Certificate Request File 

# rm -v /etc/gitlab/ssl/gitlab.domain.com.csr

6. Set file permissions 

  #  chmod 600 /etc/gitlab/ssl/gitlab.domain.com.*