How to enable Continuous Integration with Azure Pipelines

#github #devops #development #webdev

How to include build validation to validate a Pull Request

Firstly, we need to import a Git repository to work with using this link: https://github.com/MicrosoftLearning/eShopOnWeb.
Import a build pipeline called eshoponweb-ci-pr.yml by clicking pipelines in your project
Click Create pipeline
Choose Azure Repos Git (YAML)
Choose your repository
Choose Existing Azure Pipelines YAML File
Choose /.ado/eshoponweb-ci-pr.yml
Save the pipeline definition by clicking save
Go back to your newly created pipeline by clicking pipeline under Pipelines section and rename the pipeline. Note that the new pipeline will assume the name of the project

Click Repos and select Branches
Click the ellipsis button in front of the main branch among the list of branches and select Branch policies
Enable Require minimum number of reviewers, change Minimum number of reviewers to 1 and tick Allow requestors to approve their own changes in the Branch policies pane.
Scroll to Build validation section, click +, select the pipeline created earlier, leave other settings as default and click save.

We need to create a new pipeline by importing the CI pipeline named eshoponweb-ci.yml
Import a build pipeline called eshoponweb-ci.yml by clicking pipelines in your project
Click Create pipeline
Choose Azure Repos Git (YAML)
Choose your repository
Choose Existing Azure Pipelines YAML File
Choose /.ado/eshoponweb-ci.yml and click continue
Save the pipeline definition by clicking save

Click Edit to edit the pipeline
Replace the first 3 comments with: trigger: branches: include:
- main paths: include:
- src/web/*
Click save
Tick Create a new branch for this commit, leave the default branch name and tick Start a pull request. Click save after
Rename the pipeline by going to pipelines, click the ellipsis button in front of pipeline and click rename.
Provide a new name and click save
Click Repos, select pull request and click Update eshoponweb-ci.yml for Azure Pipelines
Click Approve to approve the pull request
After 1 reviewer has approved, click complete
Click complete merge in the Complete pull request pane.

Create a new branch on the main branch by clicking Repos and selecting branches
Click New branch
Provide a name for the branch and click create.
Click on the new branch to open it and look for /eShopOnWeb/src/Web/Program.cs file
Click Program.cs to open it and click Edit
Delete // Testing my PR on the first line we added before and click commit
Click Commit
Click create a pull request
In the New pull request pane, leave all settings as default and click create
A pane showing at least one reviewer must approve will be displayed because of branch policies applied to the main branch.
Click approve
Click complete after 1 reviewer has approved
Select complete merge
Going back to our pipelines, we will see that the renamed pipeline was automatically triggered after the code was merged
Select the pipeline and click build under Jobs