Refactor start into a reusable workflow.

.github/workflows/requirements.txt

@@ -0,0 +1,62 @@
+# This file was autogenerated by uv via the following command:
+#    uv pip compile requirements.in --python-version 3.9 --python-platform linux --no-build
+certifi==2024.6.2
+    # via requests
+cffi==1.16.0
+    # via cryptography
+charset-normalizer==3.3.2
+    # via requests
+cryptography==42.0.8
+    # via openstacksdk
+decorator==5.1.1
+    # via
+    #   dogpile-cache
+    #   openstacksdk
+dogpile-cache==1.3.3
+    # via openstacksdk
+idna==3.7
+    # via requests
+iso8601==2.1.0
+    # via
+    #   keystoneauth1
+    #   openstacksdk
+jmespath==1.0.1
+    # via openstacksdk
+jsonpatch==1.33
+    # via openstacksdk
+jsonpointer==2.4
+    # via jsonpatch
+keystoneauth1==5.6.0
+    # via openstacksdk
+netifaces==0.11.0
+    # via openstacksdk
+openstacksdk==3.1.0
+    # via -r requirements.in
+os-service-types==1.7.0
+    # via
+    #   keystoneauth1
+    #   openstacksdk
+pbr==6.0.0
+    # via
+    #   keystoneauth1
+    #   openstacksdk
+    #   os-service-types
+    #   stevedore
+platformdirs==4.2.2
+    # via openstacksdk
+pycparser==2.22
+    # via cffi
+pyyaml==6.0.1
+    # via openstacksdk
+requests==2.32.3
+    # via keystoneauth1
+requestsexceptions==1.4.0
+    # via openstacksdk
+stevedore==5.2.0
+    # via
+    #   dogpile-cache
+    #   keystoneauth1
+typing-extensions==4.12.1
+    # via dogpile-cache
+urllib3==2.2.1
+    # via requests

.github/workflows/start.yaml

@@ -0,0 +1,56 @@
+name: Start
+
+on:
+  workflow_call:
+    inputs:
+      number:
+        description: 'Number of runners to start.'
+        required: false
+        default: -1
+        type: number
+
+    secrets:
+      OS_APPLICATION_CREDENTIAL_ID:
+        required: true
+      OS_APPLICATION_CREDENTIAL_SECRET:
+        required: true
+
+    outputs:
+      exit_code:
+        description: "The exit code from start.py"
+        value: ${{ jobs.action_runners.outputs.exit_code }}
+
+jobs:
+  action_runners:
+    name: action runners
+    runs-on: ubuntu-latest
+    outputs:
+      exit_code: ${{ steps.start.outputs.exit_code }}
+    steps:
+    - name: Checkout
+      uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6  
+      with:
+        repository: glotzerlab/jetstream2-admin
+        ref: ${{ github.workflow_sha }}
+    # Python 3.9 is the latest possible because netifaces has no new releases
+    - name: Set up Python
+      uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
+      with:
+        python-version: "3.9"
+    - name: Install openstack
+      uses: glotzerlab/workflows/setup-uv@5cfac9da9cb78e16ae97a9119b6fd13c1c2d6f5e # 0.1.0
+      with:
+        lockfile: ".github/workflows/requirements.txt"
+    - id: start
+      name: Start action runners
+      continue-on-error: true
+      run: |
+        python3 start/start-action-runners.py ${{ inputs.number }} || echo "exit_code=$?" >> $GITHUB_OUTPUT
+      env:
+        OS_APPLICATION_CREDENTIAL_ID: ${{ secrets.OS_APPLICATION_CREDENTIAL_ID }}
+        OS_APPLICATION_CREDENTIAL_SECRET: ${{ secrets.OS_APPLICATION_CREDENTIAL_SECRET }}
+        OS_AUTH_TYPE: v3applicationcredential
+        OS_AUTH_URL: https://js2.jetstream-cloud.org:5000/v3/
+        OS_IDENTITY_API_VERSION: 3
+        OS_REGION_NAME: "IU"
+        OS_INTERFACE: public

.github/workflows/test.yaml

@@ -0,0 +1,21 @@
+name: Test
+
+on:
+  pull_request:
+
+  workflow_dispatch:
+
+jobs:
+  start_workflow:
+    name: Start
+    uses: ./.github/workflows/start.yaml
+    secrets: inherit
+
+  check_output:
+    name: Check output
+    needs: start_workflow
+    # runs-on: ubuntu-latest
+    runs-on: ${{ needs.start_workflow.outputs.exit_code == 3 && 'ubuntu-20.04' || 'ubuntu-24.04' }}
+
+    steps:
+    - run: "echo Exit code: ${{ needs.start_workflow.outputs.exit_code }}"

start/start-action-runners.py

@@ -67,7 +67,7 @@ def bring_runners_online(connection, N):
 
     sys.stdout.flush()
 
-    return total_runners == active_runners
+    return (total_runners == active_runners, active_runners)
 
 
 if __name__ == '__main__':
@@ -87,13 +87,20 @@ def bring_runners_online(connection, N):
         connection = openstack.connect()
     except Exception as e:
         print('::warning:: Failed to connect to cloud:', str(e))
-        sys.exit(0)
+        sys.exit(1)
 
     # attempt to bring the servers online several times before returning
     attempts = 0
-    while (not bring_runners_online(connection, args.N)
-           and attempts < NUM_ATTEMPTS):
+    done, active_runners = bring_runners_online(connection, args.N)
+    while (not done and attempts < NUM_ATTEMPTS):
         attempts += 1
         print(f'Waiting {TIME_BETWEEN_ATTEMPTS} seconds...', flush=True)
         time.sleep(TIME_BETWEEN_ATTEMPTS)
         print('', flush=True)
+        done, active_runners = bring_runners_online(connection, args.N)
+
+    if active_runners == 0:
+        sys.exit(2)
+
+    # testing
+    sys.exit(3)