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Introduction📃
Puppet is a server configuration management program used to configure, deploy, and manage servers. It specifies each host's unique configuration and continually verifies that the necessary configuration is in place and hasn't been changed on the host. It gives you control over all of your configured computers, so a centralized modification instantly propagates to everyone.
In this blog, we will learn how to deploy puppet code in continuous delivery for puppet enterprise.
Deploying Puppet Code🧑💻
You can use deployment policies to regulate how and when code changes are deployed. You can utilize the built-in deployment policies or develop your own custom policies. You can either manually deploy code or use pipelines to automate deployments in order to apply a deployment policy and deploy code.
The different deployment policies are given below:-
⭐ Built-in deployment policies: In Continuous Delivery for Puppet Enterprise, deployment policies are prescriptive workflows for deploying Puppet code.
⭐ Custom deployment policies: If your organization uses Continuous Delivery for Puppet Enterprise (PE) and the built-in deployment policies don't fit the way your organization uses PE, you can create your own custom deployment policies that are suited to your requirements.
⭐ Deploy code manually: You can use the manual deployment method to push a code change to a particular node group instantly.
⭐ Deploy module code: You can use a Continuous Delivery for Puppet Enterprise (PE) module pipeline to deploy the module code in your Puppet environments.
Let’s learn these deployment policies one by one.
Built-in Deployment Policies📝
In Continuous Delivery for Puppet Enterprise, deployment policies are prescriptive workflows for deploying Puppet code.
When configuring a code deployment, you first choose the optimal deployment strategy for your needs, and then Continuous Delivery for PE handles all the basic tasks of using Git to push your code to the appropriate nodes.
Policies for deployment cannot be triggered on their own. When you manually deploy code or automatically deploy code using a pipeline, you define which policy to implement. When setting up a deployment, you must additionally specify a repository, branch, commit, environment, or other factors that decide where to deploy your code, which version to deploy, and the conditions under which the deployment policy will take effect.
Types of Built-in Deployment Policies🧐
There are four types of built-in deployment policies. The policies and their use cases are mentioned in the below table.
Custom Deployment Policies📋
If your organization uses Continuous Delivery for Puppet Enterprise (PE) and the built-in deployment policies don't fit the way your organization uses PE, you can create your own custom deployment policies that are suited to your requirements.
When you build a custom deployment policy, you specify the actions required to deploy your Puppet code modifications. You can configure your policies to automate your deployment workflow operations since custom deployment policies leverage Bolt plans. Thus, your custom policies can:-
💢 Include Git procedures in the source control system you've chosen.
💢 To make modifications to your node groups using Puppet Orchestrator.
💢 Run Bolt plans and tasks.
💢 Send out automated alerts using third-party services like Slack and ServiceNow.
Custom deployment policies use the puppetlabs-cd4pe_deployments module, which is included with Continuous Delivery for PE. This means that in order to use custom deployment policies, no downloading or installation is required. For a complete list of functions and variables, you can use in your custom deployment policies, refer to the puppetlabs-cd4pe_deployments module Github repository.
You can use the manual deployment method to push a code change to a particular node group instantly.
The steps for manual code deployment are given below.
Step 1: Go to Control repos in the Continuous Delivery for Puppet Enterprise (PE) web UI and choose the control repo you wish to use to deploy code from.
Step 2: Select New deployment under Manual actions.
Step 3: Choose the commit you want to deploy, the branch that contains the code modifications you want to deploy, and finally choose your PE instance.
Step 4: Choose the Puppet environment where you wish to run the code.
Step 5: Choose a deployment policy.
You have the option of creating custom deployment policies or using one of the built-in deployment policies.
Step 6: Set the deployment's termination requirements according to the deployment policy you've chosen, and decide how many nodes can fail before the deployment is terminated.
Step 7: Choose a name for the deployment, then click Deploy.
When you click Deploy, a page called Deployment details appears where you can keep track of the deployment's development.
After completing the above steps, your code will be deployed.
Deploy Module Code🖥️
You can use a Continuous Delivery for Puppet Enterprise (PE) module pipeline to deploy the module code in your Puppet environments. To accomplish this, add a :branch =>:control_branch declaration to the module's entry in your control repo's Puppetfile.
The Eventual consistency policy is used by Continuous Delivery for PE to deploy module code to your Puppet installations. Continuous Delivery for PE establishes a new branch in your module repository with the same name as your target Puppet environment when you initiate a module code deployment. You want to deploy the module code found in this new branch. Then the Code Manager is triggered by Continuous Delivery for PE. Code Manager adds the new module code to the control repo after reading the module's :branch =>:control_branch declaration in the Puppetfile for the control repo. During each node's subsequent scheduled Puppet run, the modified module code is distributed to all nodes in the defined Puppet environment.
Steps to deploy module code:-
Step 1: The module you want to deploy is included in the puppetfile. Open that file. In the module's section of the Puppetfile, add a :branch =>:control_branch declaration.
Step 2: Go to Modules in the Continuous Delivery for PE web UI and choose the module you want to deploy.
Step 3: Create a pipeline for your module, if you haven't already.
Step 4: Select Deployment by clicking Add stage.
Step 5: Select your PE instance and the Puppet environment where you want the module code to be deployed.
Step 6: Click Add deployment.
After completing the above steps, your code will be deployed.
Frequently Asked Questions
What is DevOps?
DevOps is a set of cultural concepts, processes, and tools that improves an organization's capacity to provide applications and services at a high rate.
What is Puppet?
Puppet is a server configuration management program that may be used to configure, deploy, and manage servers.
Is Puppet a CI/CD tool?
Yes, Puppet is a true CI/CD solution for modern development.
What is continuous delivery for Puppet Enterprise?
A solution for optimizing and making continuous integration and delivery of your Puppet code is called Continuous Delivery for Puppet Enterprise (PE). A prescribed methodology for testing and deploying Puppet code across environments is provided by Continuous Delivery for PE.
What are deployment policies in continuous delivery for Puppet Enterprise?
In Continuous Delivery for Puppet Enterprise, deployment policies are prescriptive workflows for deploying Puppet code.
Conclusion
In this article, we have extensively discussed how to deploy puppet code in continuous delivery for puppet enterprise. I hope you enjoyed reading this article on Deploying Puppet Code in Continuous Delivery.
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