Tweaks for running the container registry in k8s (#760)

Minor tweaks for running the container-registry in k8s.  The big change is not requiring --image-registry.

Reviewed-on: #760
Reviewed-by: David Boreham <dboreham@noreply.git.vdb.to>

.gitea/workflows/fixturenet-eth-plugeth-arm-test.yml

@@ -0,0 +1,45 @@
+name: Fixturenet-Eth-Plugeth-Arm-Test
+
+on:
+  push:
+    branches: '*'
+    paths:
+      - '!**'
+      - '.gitea/workflows/triggers/fixturenet-eth-plugeth-arm-test'
+  schedule: # Note: coordinate with other tests to not overload runners at the same time of day
+    - cron: '2 14 * * *'
+
+# Needed until we can incorporate docker startup into the executor container
+env:
+  DOCKER_HOST: unix:///var/run/dind.sock
+
+
+jobs:
+  test:
+    name: "Run an Ethereum plugeth fixturenet test"
+    runs-on: ubuntu-latest-arm
+    steps:
+      - name: "Clone project repository"
+        uses: actions/checkout@v3
+      # At present the stock setup-python action fails on Linux/aarch64
+      # Conditional steps below workaroud this by using deadsnakes for that case only
+      - name: "Install Python for ARM on Linux"
+        if: ${{ runner.arch == 'arm64' && runner.os == 'Linux' }}
+        uses: deadsnakes/action@v3.0.1
+        with:
+          python-version: '3.8'
+      - name: "Install Python cases other than ARM on Linux"
+        if: ${{ ! (runner.arch == 'arm64' && runner.os == 'Linux') }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.8'
+      - name: "Print Python version"
+        run: python3 --version
+      - name: "Install shiv"
+        run: pip install shiv
+      - name: "Generate build version file"
+        run: ./scripts/create_build_tag_file.sh
+      - name: "Build local shiv package"
+        run: ./scripts/build_shiv_package.sh
+      - name: "Run fixturenet-eth tests"
+        run: ./tests/fixturenet-eth-plugeth/run-test.sh

.gitea/workflows/triggers/fixturenet-eth-plugeth-arm-test

@@ -0,0 +1,2 @@
+Change this file to trigger running the fixturenet-eth-plugeth-arm-test CI job
+

stack_orchestrator/data/compose/docker-compose-container-registry.yml

@@ -5,9 +5,11 @@ services:
     environment:
       REGISTRY_LOG_LEVEL: ${REGISTRY_LOG_LEVEL}
     volumes:
+      - config:/config:ro
       - registry-data:/var/lib/registry
     ports:
       - "5000"
 
 volumes:
+  config:
   registry-data:

stack_orchestrator/deploy/deployment_create.py

@@ -327,12 +327,14 @@ def init_operation(deploy_command_context, stack, deployer_type, config,
     default_spec_file_content = call_stack_deploy_init(deploy_command_context)
     spec_file_content = {"stack": stack, constants.deploy_to_key: deployer_type}
     if deployer_type == "k8s":
-        if kube_config is None:
+        if kube_config:
+            spec_file_content.update({constants.kube_config_key: kube_config})
+        else:
             error_exit("--kube-config must be supplied with --deploy-to k8s")
-        if image_registry is None:
-            error_exit("--image-registry must be supplied with --deploy-to k8s")
-        spec_file_content.update({constants.kube_config_key: kube_config})
-        spec_file_content.update({constants.image_registry_key: image_registry})
+        if image_registry:
+            spec_file_content.update({constants.image_registry_key: image_registry})
+        else:
+            print("WARNING: --image-registry not specified, only default container registries (eg, Docker Hub) will be available")
     else:
         # Check for --kube-config supplied for non-relevant deployer types
         if kube_config is not None: