test(k8s): add tests for jobs, secrets, labels, and namespace isolation

Add a job compose file for the test stack and extend the k8s deploy
test to verify new features:
- Namespace isolation: pod exists in laconic-{id}, not default
- Stack labels: app.kubernetes.io/stack label set on pods
- Job completion: test-job runs to completion (status.succeeded=1)
- Secrets: spec secrets: key results in envFrom secretRef on pod

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

stack_orchestrator/data/compose-jobs/docker-compose-test-job.yml

@@ -0,0 +1,5 @@
+services:
+  test-job:
+    image: cerc/test-container:local
+    entrypoint: /bin/sh
+    command: ["-c", "echo 'Job completed successfully'"]

stack_orchestrator/data/stacks/test/stack.yml

@@ -7,3 +7,5 @@ containers:
   - cerc/test-container
 pods:
   - test
+jobs:
+  - test-job

tests/k8s-deploy/run-deploy-test.sh

@@ -105,6 +105,17 @@ fi
 # Add a config file to be picked up by the ConfigMap before starting.
 echo "dbfc7a4d-44a7-416d-b5f3-29842cc47650" > $test_deployment_dir/configmaps/test-config/test_config
 
+# Add secrets to the deployment spec (references a pre-existing k8s Secret by name)
+deployment_spec_file=${test_deployment_dir}/spec.yml
+cat << EOF >> ${deployment_spec_file}
+secrets:
+  test-secret:
+    - TEST_SECRET_KEY
+EOF
+
+# Get the deployment ID for kubectl queries
+deployment_id=$(cat ${test_deployment_dir}/deployment.yml | cut -d ' ' -f 2)
+
 echo "deploy create output file test: passed"
 # Try to start the deployment
 $TEST_TARGET_SO deployment --dir $test_deployment_dir start
@@ -166,6 +177,54 @@ else
     delete_cluster_exit
 fi
 
+# --- New feature tests: namespace, labels, jobs, secrets ---
+
+# Check that the pod is in the deployment-specific namespace (not default)
+ns_pod_count=$(kubectl get pods -n laconic-${deployment_id} -l app=${deployment_id} --no-headers 2>/dev/null | wc -l)
+if [ "$ns_pod_count" -gt 0 ]; then
+    echo "namespace isolation test: passed"
+else
+    echo "namespace isolation test: FAILED"
+    echo "Expected pod in namespace laconic-${deployment_id}"
+    delete_cluster_exit
+fi
+
+# Check that the stack label is set on the pod
+stack_label_count=$(kubectl get pods -n laconic-${deployment_id} -l app.kubernetes.io/stack=test --no-headers 2>/dev/null | wc -l)
+if [ "$stack_label_count" -gt 0 ]; then
+    echo "stack label test: passed"
+else
+    echo "stack label test: FAILED"
+    delete_cluster_exit
+fi
+
+# Check that the job completed successfully
+for i in {1..30}; do
+    job_status=$(kubectl get job ${deployment_id}-job-test-job -n laconic-${deployment_id} -o jsonpath='{.status.succeeded}' 2>/dev/null)
+    if [ "$job_status" == "1" ]; then
+        break
+    fi
+    sleep 2
+done
+if [ "$job_status" == "1" ]; then
+    echo "job completion test: passed"
+else
+    echo "job completion test: FAILED"
+    echo "Job status.succeeded: ${job_status}"
+    delete_cluster_exit
+fi
+
+# Check that the secrets spec results in an envFrom secretRef on the pod
+secret_ref=$(kubectl get pod -n laconic-${deployment_id} -l app=${deployment_id} \
+    -o jsonpath='{.items[0].spec.containers[0].envFrom[?(@.secretRef.name=="test-secret")].secretRef.name}' 2>/dev/null)
+if [ "$secret_ref" == "test-secret" ]; then
+    echo "secrets envFrom test: passed"
+else
+    echo "secrets envFrom test: FAILED"
+    echo "Expected secretRef 'test-secret', got: ${secret_ref}"
+    delete_cluster_exit
+fi
+
 # Stop then start again and check the volume was preserved
 $TEST_TARGET_SO deployment --dir $test_deployment_dir stop
 # Sleep a bit just in case