CI/CD pipelines Azure devops automatic merge after deploy release

Question

I have a classic env. setup like following:

I have 2 branches: Develop and Master.

Is there any way in Azure DevOps to setup the following rule:

1. When a deploy is succeeded on dev environment (defined in the release pipeline of azure devops) ------> create automatically a pull request to merge develop into Master.

2. or the other one: if a Build of develop branch is succeded -------> create automatically a pull request to merge develop into Master.

Any help will be appreciated.

Answer 1

Edit:

I just uploaded an extension that does it: https://marketplace.visualstudio.com/items?itemName=ShaykiAbramczyk.CreatePullRequest

---

You can use Azure DevOps Rest API to create a Pull Request, so in the end of the Build / Release add a PowerShell task that do it, for example:

$body =  @{
             sourceRefName= "$(Build.SourceBranch)"
             targetRefName = "refs/heads/master"
             title = "PR from Pipeline"
     }

$head = @{ Authorization = "Bearer $env:SYSTEM_ACCESSTOKEN"  }
$json = ConvertTo-Json $body
$url = "$(System.TeamFoundationCollectionUri)$(System.TeamProject)/_apis/git/repositories/$(Build.Repository.Name)/pullrequests?api-version=5.0"
Invoke-RestMethod -Uri $url -Method Post -Headers $head -Body $json -ContentType application/json

You need to Allow scripts to access the OAuth token (check the checbox in the Agent Job options):

Results:

I put the basic parameters in the body (from branch, to branch, title) but you can add more parameters like reviewers, check the docs here.