Pipeline for using micromamba in a azure devops pipeline

azure-pipeline.yaml

jobs:
  - job:
    pool:
      vmImage: 'vs2017-win2016'
    variables:
      - name: MAMBA_ROOT_PREFIX
        value: $(Pipeline.Workspace)\micromambaenv
    steps:
      - powershell: |
          Invoke-Webrequest -URI https://micro.mamba.pm/api/micromamba/win-64/latest -OutFile micromamba.tar.bz2
          C:\PROGRA~1\7-Zip\7z.exe x micromamba.tar.bz2 -aoa
          C:\PROGRA~1\7-Zip\7z.exe x micromamba.tar -ttar -aoa -r Library\bin\micromamba.exe
          MOVE -Force Library\bin\micromamba.exe micromamba.exe
        displayName: install micromamba
      - powershell: |
          .\micromamba.exe shell hook -s powershell | Out-String | Invoke-Expression
          micromamba create --yes --name myenv python=3.8 geopandas==0.8 -c conda-forge
        displayName: Install required packages
      - powershell: |
          .\micromamba.exe shell hook -s powershell | Out-String | Invoke-Expression
          micromamba activate myenv
          python -m pip install --upgrade pip
          pip install pytest pytest-azurepipelines
          pytest -o junit_family=xunit2 --junitxml=junit/unit-test.xml
        displayName: pytest

7-zip is not always available on self-hosted agents The following is bit shorter and robust.

jobs:
 - job:
   pool:
     vmImage: 'vs2017-win2016'
   steps:
     - powershell: |
         Invoke-Webrequest -URI https://micro.mamba.pm/api/micromamba/win-64/latest -OutFile ~\micromamba.tar.bz2
         $env:Path = "C:\PROGRA~1\Git\usr\bin;" + $env:Path
         tar.exe -xvjf ~/micromamba.tar.bz2 --strip-components 2 -C ~ Library/bin/micromamba.exe
         echo "MAMBA_ROOT_PREFIX=~\micromamba" >> $GITHUB_ENV
       displayName: install micromamba

     - powershell: |
       run: | 
         ~\micromamba.exe shell hook -s powershell | Out-String | Invoke-Expression
         micromamba create --yes --name myenv python=3.8 geopandas==0.8 -c conda-forge
       displayName: Install required packages