Deploy Jenkins through the Linode Marketplace

Jenkins is an open source automation tool which can build, test, and deploy your infrastructure. It gives you access to a massive library of plugins to support automation in your project’s lifecycle. You can create a continuous delivery pipeline which automates the process for getting your software from version control to your users.

Deploying a Marketplace App

The Linode Marketplace lets you easily deploy software on a Compute Instance using Cloud Manager. See Get Started with Marketplace Apps for complete steps.

1. Log in to Cloud Manager and select the Marketplace link from the left navigation menu. This displays the Linode Create page with the Marketplace tab pre-selected.

2. Under the Select App section, select the app you would like to deploy.

3. Complete the form by following the steps and advice within the Creating a Compute Instance guide. Depending on the Marketplace App you selected, there may be additional configuration options available. See the Configuration Options section below for compatible distributions, recommended plans, and any additional configuration options available for this Marketplace App.

4. Click the Create Linode button. Once the Compute Instance has been provisioned and has fully powered on, wait for the software installation to complete. If the instance is powered off or restarted before this time, the software installation will likely fail.

To verify that the app has been fully installed, see Get Started with Marketplace Apps > Verify Installation. Once installed, follow the instructions within the Getting Started After Deployment section to access the application and start using it.

Configuration Options

• Supported distributions: Ubuntu 22.04 LTS
• Suggested minimum plan: All plan types and sizes can be used.

Jenkins Options

Limited Sudo User

You need to fill out the following fields to automatically create a limited sudo user, with a strong generated password for your new Compute Instance. This account will be assigned to the sudo group, which provides elevated permissions when running commands with the sudo prefix.

• Limited sudo user: Enter your preferred username for the limited user. No Capital Letters, Spaces, or Special Characters.

  Locating The Generated Sudo Password

  A password is generated for the limited user and stored in a .credentials file in their home directory, along with application specific passwords. This can be viewed by running: cat /home/$USERNAME/.credentials

  For best results, add an account SSH key for the Cloud Manager user that is deploying the instance, and select that user as an authorized_user in the API or by selecting that option in Cloud Manager. Their SSH pubkey will be assigned to both root and the limited user.

• Disable root access over SSH: To block the root user from logging in over SSH, select Yes. You can still switch to the root user once logged in, and you can also log in as root through Lish.

  Accessing The Instance Without SSH

  If you disable root access for your deployment and do not provide a valid Account SSH Key assigned to the authorized_user, you will need to login as the root user via the Lish console and run cat /home/$USERNAME/.credentials to view the generated password for the limited user.

Custom Domain (Optional)

If you wish to automatically configure a custom domain, you first need to configure your domain to use Linode’s name servers. This is typically accomplished directly through your registrar. See Use Linode’s Name Servers with Your Domain. Once that is finished, you can fill out the following fields for the Marketplace App:

• Linode API Token: If you wish to use the Linode’s DNS Manager to manage DNS records for your custom domain, create a Linode API Personal Access Token on your account with Read/Write access to Domains. If this is provided along with the subdomain and domain fields (outlined below), the installation attempts to create DNS records via the Linode API. See Get an API Access Token. If you do not provide this field, you need to manually configure your DNS records through your DNS provider and point them to the IP address of the new instance.

• Subdomain: The subdomain you wish to use, such as www for www.example.com.

• Domain: The domain name you wish to use, such as example.com.

• Let’s Encrypt SOA Email: (required) Email address for free Let’s Encrypt SSL certificate.

• Jenkins Version: (required) Version of Jenkins to deploy.

Getting Started after Deployment

After deploying your Jenkins instance, log in and continue the configuration.

Access Your Jenkins Instance

1. Connect to your Linode via SSH using root or the sudo user created during deployment if you added Account SSH Keys.

2. Retrieve your Jenkins admin password from the /home/$SUDO_USER/.credentials file.

   cat /home/$SUDO_USER/.credentials

   You should see a similar output:

     Sudo Username: $SUDO_USER
     Sudo Password: ifdQUa3mD2UJSJ2NA9ddSDVl5NCWfKl
     Jenkins Admin password: BeVrZwVkn1mUO0Gl38lRabp

3. Open a web browser and navigate to https://192-0-2-17.ip.linodeusercontent.com. Replace 192-0-2-17.ip.linodeusercontent.com with the reverse DNS for your Compute Instance. This will open the Unlock Jenkins page. Enter the password you retrieved in the previous step and click Continue.

4. Install the community-suggested plugins or select the plugins to install manually.

5. After you install the desired plugins, create your first admin user. The Jenkins admin password you used earlier is temporary.

More Information

You may wish to consult the following resources for additional information on this topic. While these are provided in the hope that they will be useful, please note that we cannot vouch for the accuracy or timeliness of externally hosted materials.

• Creating Your First Jenkins Pipeline
• Managing Jenkins Masters and Nodes
• Managing Jenkins Plugins