Creating an Azure Pipeline for building, testing, and publishing artifacts for a Python web application involves defining a pipeline configuration file in your source code repository. Here, I'll provide a step-by-step guide to creating a simple Azure Pipeline for a Python web application:
Step 1: Prerequisites
Ensure you have an Azure DevOps organization and project set up.
Have your Python web application code stored in a Git repository (e.g., Azure Repos or GitHub).
Step 2: Create an Azure Pipeline Configuration File
Create a file named azure-pipelines.yml in the root directory of your repository. This file will define the build, test, and artifact publishing stages of your pipeline.
Here's a basic example of an azure-pipelines.yml file:
trigger:
- '*'
pool:
vmImage: 'ubuntu-latest'
stages:
-
stage: Build
jobs:- job: BuildJob steps:
- task: UsePythonVersion@0 inputs: versionSpec: '3.x' addToPath: true
- script: | python -m venv venv source venv/bin/activate pip install -r requirements.txt displayName: 'Install Python dependencies'
- script: | python -m unittest discover tests displayName: 'Run Unit Tests'
- task: PublishPipelineArtifact@1 inputs: targetPath: '$(Build.ArtifactStagingDirectory)' artifact: 'webapp-artifact' condition: succeeded()
- stage: Deploy jobs:
- job: DeployJob
steps:
- download: current artifact: 'webapp-artifact' displayName: 'Download Artifact'
Matrix based upon on deployment
trigger:
- main
pool:
vmImage: ubuntu-latest
strategy:
matrix:
Python38:
python.version: '3.8'
Python39:
python.version: '3.9'
Python310:
python.version: '3.10'
steps:
task: UsePythonVersion@0
inputs:
versionSpec: '$(python.version)'
displayName: 'Use Python $(python.version)'script: |
python -m pip install --upgrade pip
pip install -r requirements.txt
displayName: 'Install dependencies'script: |
pip install pytest pytest-azurepipelines
pytest
displayName: 'pytest'
Step 3: Configure Your Python Web Application
Ensure your Python web application is structured correctly with the required files:
requirements.txt: List of Python dependencies.
tests/: Directory containing your unit tests.
Any other necessary application files and directories.
Step 4: Create the Azure Pipeline
Go to your Azure DevOps project.
Navigate to Pipelines > New Pipeline.
Select your source code repository.
Choose "YAML" for the pipeline configuration.
In the YAML editor, make sure it reflects the content of your azure-pipelines.yml file.
Click "Save and Run" to create and trigger the pipeline.
Step 5: Monitor and Troubleshoot
Once the pipeline is running, you can monitor its progress and view logs and test results. If any issues arise, Azure DevOps provides a rich set of diagnostic tools to help you troubleshoot and fix them.
This example provides a basic starting point for your Azure Pipeline. Depending on your specific needs, you may need to add deployment steps, environment variables, or additional configurations to customize your pipeline further.
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