Add smoke tests (#68)

Resolves #43 

Just a quick smoke test to make sure the example code works, and that we
don't totally break the synthesis pod lifecycle code (that can't be
easily integration tested).

Co-authored-by: Jordan Olshevski <[email protected]>

.github/workflows/smoke.yaml

@@ -0,0 +1,24 @@
+name: Smoke Tests
+on:
+  push:
+  workflow_dispatch:
+  schedule:
+    - cron: 0 0 * * *
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+
+      - name: Create Kind cluster
+        uses: helm/kind-action@v1
+
+      - name: Run tests
+        timeout-minutes: 5
+        run: ./hack/smoke-test.sh

cmd/eno-controller/main.go

@@ -23,14 +23,21 @@ func main() {
 	}
 }
 
+// TODO: Handle case where resource slices are already deleted but comp still references them
+
 func run() error {
 	ctx := ctrl.SetupSignalHandler()
 	var (
 		debugLogging bool
 		synconf      = &synthesis.Config{}
+
+		mgrOpts = &manager.Options{
+			Rest: ctrl.GetConfigOrDie(),
+		}
 	)
 	flag.Float64Var(&synconf.SliceCreationQPS, "slice-creation-qps", 5, "Max QPS for writing synthesized resources into resource slices")
 	flag.BoolVar(&debugLogging, "debug", true, "Enable debug logging")
+	mgrOpts.Bind(flag.CommandLine)
 	flag.Parse()
 
 	zapCfg := zap.NewProductionConfig()
@@ -43,9 +50,7 @@ func run() error {
 	}
 	logger := zapr.NewLogger(zl)
 
-	mgr, err := manager.New(logger, &manager.Options{
-		Rest: ctrl.GetConfigOrDie(),
-	})
+	mgr, err := manager.New(logger, mgrOpts)
 	if err != nil {
 		return fmt.Errorf("constructing manager: %w", err)
 	}

examples/simple.yaml

@@ -19,7 +19,7 @@ spec:
             "kind":"ConfigMap",
             "metadata":{
               "name":"some-config",
-              "namespace": "default",
+              "namespace": "default"
             }
           }
         ]

hack/smoke-test.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Wait for apiserver to be ready
+while true; do
+    kubectl api-resources
+    if [[ $? -eq 0 ]]; then
+        break
+    else
+        sleep 1
+    fi
+done
+
+# Start Eno
+kubectl apply -f api/v1/config/crd
+go run ./cmd/eno-controller --health-probe-addr=:0 --metrics-addr=:0 &
+go run ./cmd/eno-reconciler --health-probe-addr=:0 --metrics-addr=:0 &
+
+# Apply example
+kubectl apply -f ./examples/simple.yaml
+
+# Wait for the composition to be reconciled
+while true; do
+    json=$(kubectl get composition test-comp -o=json)
+    echo "${json}"
+
+    # TODO: Check for readiness once supported
+    echo $json | jq --exit-status '.status.currentState.synthesized'
+    if [[ $? -eq 0 ]]; then
+        break
+    else
+        sleep 1
+    fi
+done
+
+# Delete the example and wait for cleanup
+kubectl delete composition test-comp --wait=true --timeout=1m
+
+# Clean up controller background jobs
+kill $(jobs -p)