Azure Pipeline Part 12 – If Elseif Else Each
Hello Everyone
Welcome to CloudAffaire and this is Debjeet.
Today we are going to discuss how to use condition using if elseif else statement and loop using each statement in Azure Pipelines.
Azure Pipeline Part 12 – If Elseif Else Each
Prerequisites:
- One active Azure DevOps account
- Personal Access Token (PAT)
- A self-hosted agent registered to your Azure DevOps organization
Setup:
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## ----- ## Setup ## ----- ## Define variables ORGANIZATION="<EXISTING_AZURE_DEVOPS_ORGANIZATION_NAME>" USER=$(az account show | jq -r .user.name) PROJECT="<NEW_AZURE_DEVOPS_PROJECT_NAME>" PAT='<PERSONAL_ACCESS_TOKEN>' B64_PAT=$(printf "%s"":$PAT" | base64) ## Test if authentication working (List projects in your organization) curl -s -u $USER:$PAT \ https://dev.azure.com/$ORGANIZATION/_apis/projects?api-version=6.0 | jq . ## Create a new Azure DevOps project curl -s --request POST \ -u $USER:$PAT \ --header "Content-Type: application/json" \ --data '{ "name": "'"$PROJECT"'", "description": "Demo Project For Azure Pipeline", "capabilities": { "versioncontrol": { "sourceControlType": "Git" }, "processTemplate": { "templateTypeId": "6b724908-ef14-45cf-84f8-768b5384da45" } } }' \ https://dev.azure.com/$ORGANIZATION/_apis/projects?api-version=6.0 | jq . ## Get project default repository details REPOSITORY_ID=$(curl -s -u $USER:$PAT \ https://dev.azure.com/$ORGANIZATION/$PROJECT/_apis/git/repositories?api-version=6.0 | jq -r .value[0].id) && curl -s -u $USER:$PAT \ https://dev.azure.com/$ORGANIZATION/$PROJECT/_apis/git/repositories/$REPOSITORY_ID?api-version=6.0 | jq . ## Create a new Azure Pipeline using REST API curl -s --request POST \ -u $USER:$PAT \ --header "Content-Type: application/json" \ --data '{ "folder": null, "name": "mypipeline", "configuration": { "type": "yaml", "path": "/azure-pipelines.yml", "repository": { "id": "'"$REPOSITORY_ID"'", "name": "'"$PROJECT"'", "type": "azureReposGit" } } }' \ https://dev.azure.com/$ORGANIZATION/$PROJECT/_apis/pipelines?api-version=6.0-preview.1 | jq . ## Clone project default repository REPO_HTTPS_CLONE_URL=$(curl -s -u $USER:$PAT \ https://dev.azure.com/$ORGANIZATION/$PROJECT/_apis/git/repositories?api-version=6.0 | jq -r .value[0].webUrl ) && B64_PAT=$(printf "%s"":$PAT" | base64) && git -c http.extraHeader="Authorization: Basic ${B64_PAT}" \ clone $REPO_HTTPS_CLONE_URL cd $PROJECT |
Azure Pipeline – Conditions Using If Elseif Else:
You can use if, elseif, and else clauses to conditionally assign variable values or set inputs for tasks. You can also conditionally run a step when a condition is met.
Azure Pipeline – Loop Using Each Statement:
You can also use each keyword to loop through parameters with the object type.
Example:
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## -------------- ## If elseif else ## -------------- ## Create pipeline definition cat <<'EOF'> azure-pipelines.yml pool: mypool variables: ${{ if eq(variables['Build.SourceBranchName'], 'main') }}: - name: provider value: Azure steps: - script: echo "start" - ${{ if eq(variables.provider, 'AWS') }}: - script: echo its on AWS - ${{ elseif eq(variables.provider, 'GCP') }}: - script: echo its on GCP - ${{ else }}: - script: echo its on Azure EOF ## Push the changes to Azure Repo git add . git commit -m "update1" git -c http.extraHeader="Authorization: Basic ${B64_PAT}" push ## ---- ## Each ## ---- ## Update pipeline definition cat <<'EOF'> azure-pipelines.yml pool: mypool parameters: - name: provider type: object default: - AWS - Azure - GCP steps: - ${{ each value in parameters.provider }}: - script: echo ${{ value }} EOF ## Push the changes to Azure Repo git add . git commit -m "update2" git -c http.extraHeader="Authorization: Basic ${B64_PAT}" push ## -------- ## Clean up ## -------- ## Delete the Azure DevOps project and local repository PROJECT_ID=$(curl -s -u $USER:$PAT \ https://dev.azure.com/$ORGANIZATION/_apis/projects?api-version=6.0 \ | jq -r '.value[] | select(.name == "'"$PROJECT"'") | .id') && curl -s --request DELETE \ -u $USER:$PAT \ --header "Content-Type: application/json" \ https://dev.azure.com/$ORGANIZATION/_apis/projects/$PROJECT_ID?api-version=6.0 cd .. rm -rf $PROJECT |
Hope you have enjoyed this article. To know more about Azure DevOps, please refer below official documentation
https://docs.microsoft.com/en-us/azure/devops/?view=azure-devops