Feat: Add hostPort and protocol to containers (#1558)

* feat: add the host port to containers

* test(unit): add unit tests for host port and protocol

* test(functional): add functional tests of host port and protocol

* test(functional): add functional tests of host port and protocol for openshift

pkg/transformer/kubernetes/kubernetes.go

@@ -623,10 +623,8 @@ func ConfigPorts(service kobject.ServiceConfig) []api.ContainerPort {
 		containerPort := api.ContainerPort{
 			ContainerPort: port.ContainerPort,
 			HostIP:        port.HostIP,
-		}
+			HostPort:      port.HostPort,
-		// If the default is already TCP, no need to include protocol.
+			Protocol:      api.Protocol(port.Protocol),
-		if protocol := api.Protocol(port.Protocol); protocol != api.ProtocolTCP {
-			containerPort.Protocol = protocol
 		}
 		ports = append(ports, containerPort)
 		exist[port.ID()] = true

pkg/transformer/kubernetes/kubernetes_test.go

@@ -84,6 +84,15 @@ func newKomposeObject() kobject.KomposeObject {
 	}
 }
 
+func newKomposeObjectHostPortProtocolConfig() kobject.ServiceConfig {
+	return kobject.ServiceConfig{
+		Name:          "nginx",
+		ContainerName: "nginx",
+		Image:         "nginx",
+		Port:          []kobject.Ports{{HostPort: 80, Protocol: string(api.ProtocolTCP), ContainerPort: 80}},
+	}
+}
+
 func equalStringSlice(s1, s2 []string) bool {
 	if len(s1) != len(s2) {
 		return false
@@ -938,3 +947,41 @@ func TestCreatePVC(t *testing.T) {
 		t.Errorf("Expected %s returned, got %s", storageClassName, *result.Spec.StorageClassName)
 	}
 }
+
+func TestCreateHostPortAndProtocol(t *testing.T) {
+	groupName := "pod_group"
+	komposeObject := kobject.KomposeObject{
+		ServiceConfigs: map[string]kobject.ServiceConfig{"app": newKomposeObjectHostPortProtocolConfig()},
+	}
+	k := Kubernetes{}
+	objs, err := k.Transform(komposeObject, kobject.ConvertOptions{ServiceGroupMode: groupName})
+	if err != nil {
+		t.Error(errors.Wrap(err, "k.Transform failed"))
+	}
+	for _, obj := range objs {
+		if deployment, ok := obj.(*appsv1.Deployment); ok {
+			container := deployment.Spec.Template.Spec.Containers[0]
+			port := container.Ports[0]
+			containerPort := port.ContainerPort
+			hostPort := port.HostPort
+			protocol := port.Protocol
+
+			expectedPort := komposeObject.ServiceConfigs["app"].Port[0]
+			expectedContainerPort := expectedPort.ContainerPort
+			expectedHostPort := expectedPort.HostPort
+			expectedProtocol := expectedPort.Protocol
+
+			if containerPort != expectedContainerPort {
+				t.Errorf("Expected container port %v, got %v", expectedContainerPort, containerPort)
+			}
+
+			if hostPort != expectedHostPort {
+				t.Errorf("Expected host port %v, got %v", expectedHostPort, hostPort)
+			}
+
+			if protocol != api.Protocol(expectedProtocol) {
+				t.Errorf("Expected protocol %v, got %v", expectedProtocol, protocol)
+			}
+		}
+	}
+}

script/test/cmd/tests_new.sh

@@ -216,3 +216,11 @@ convert::expect_success "$os_cmd" "$os_output"
 k8s_cmd="kompose -f $KOMPOSE_ROOT/script/test/fixtures/single-file-output/docker-compose.yaml convert --stdout --with-kompose-annotation=false"
 k8s_output="$KOMPOSE_ROOT/script/test/fixtures/single-file-output/output-k8s.yaml"
 convert::expect_success_and_warning "$k8s_cmd" "$k8s_output"
+
+# Test host port and protocol feature
+k8s_cmd="kompose -f $KOMPOSE_ROOT/script/test/fixtures/host-port-protocol/docker-compose.yaml convert --stdout --with-kompose-annotation=false"
+os_cmd="kompose --provider=openshift -f $KOMPOSE_ROOT/script/test/fixtures/host-port-protocol/docker-compose.yaml convert --stdout --with-kompose-annotation=false"
+k8s_output="$KOMPOSE_ROOT/script/test/fixtures/host-port-protocol/output-k8s.yaml"
+os_output="$KOMPOSE_ROOT/script/test/fixtures/host-port-protocol/output-os.yaml"
+convert::expect_success_and_warning "$k8s_cmd" "$k8s_output"
+convert::expect_success "$os_cmd" "$os_output"

script/test/fixtures/host-port-protocol/docker-compose.yaml

@@ -0,0 +1,10 @@
+version: "3.3"
+
+services:
+  nginx:
+    ports:
+      - target: 80
+        published: 80
+        protocol: tcp
+        mode: host
+    image: nginx

script/test/fixtures/host-port-protocol/output-k8s.yaml

@@ -0,0 +1,66 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  creationTimestamp: null
+  labels:
+    io.kompose.service: nginx
+  name: nginx
+spec:
+  ports:
+    - name: "80"
+      port: 80
+      targetPort: 80
+  selector:
+    io.kompose.service: nginx
+status:
+  loadBalancer: {}
+
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  creationTimestamp: null
+  labels:
+    io.kompose.service: nginx
+  name: nginx
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      io.kompose.service: nginx
+  strategy: {}
+  template:
+    metadata:
+      creationTimestamp: null
+      labels:
+        io.kompose.network/host-port-protocol-default: "true"
+        io.kompose.service: nginx
+    spec:
+      containers:
+        - image: nginx
+          name: nginx
+          ports:
+            - containerPort: 80
+              hostPort: 80
+              protocol: TCP
+          resources: {}
+      restartPolicy: Always
+status: {}
+
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  creationTimestamp: null
+  name: host-port-protocol-default
+spec:
+  ingress:
+    - from:
+        - podSelector:
+            matchLabels:
+              io.kompose.network/host-port-protocol-default: "true"
+  podSelector:
+    matchLabels:
+      io.kompose.network/host-port-protocol-default: "true"
+

script/test/fixtures/host-port-protocol/output-os.yaml

@@ -0,0 +1,91 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  creationTimestamp: null
+  labels:
+    io.kompose.service: nginx
+  name: nginx
+spec:
+  ports:
+    - name: "80"
+      port: 80
+      targetPort: 80
+  selector:
+    io.kompose.service: nginx
+status:
+  loadBalancer: {}
+
+---
+apiVersion: v1
+kind: DeploymentConfig
+metadata:
+  creationTimestamp: null
+  labels:
+    io.kompose.service: nginx
+  name: nginx
+spec:
+  replicas: 1
+  selector:
+    io.kompose.service: nginx
+  strategy:
+    resources: {}
+  template:
+    metadata:
+      creationTimestamp: null
+      labels:
+        io.kompose.network/host-port-protocol-default: "true"
+        io.kompose.service: nginx
+    spec:
+      containers:
+        - image: ' '
+          name: nginx
+          ports:
+            - containerPort: 80
+              hostPort: 80
+              protocol: TCP
+          resources: {}
+      restartPolicy: Always
+  test: false
+  triggers:
+    - type: ConfigChange
+    - imageChangeParams:
+        automatic: true
+        containerNames:
+          - nginx
+        from:
+          kind: ImageStreamTag
+          name: nginx:latest
+      type: ImageChange
+status:
+  availableReplicas: 0
+  latestVersion: 0
+  observedGeneration: 0
+  replicas: 0
+  unavailableReplicas: 0
+  updatedReplicas: 0
+
+---
+apiVersion: v1
+kind: ImageStream
+metadata:
+  creationTimestamp: null
+  labels:
+    io.kompose.service: nginx
+  name: nginx
+spec:
+  lookupPolicy:
+    local: false
+  tags:
+    - annotations: null
+      from:
+        kind: DockerImage
+        name: nginx
+      generation: null
+      importPolicy: {}
+      name: latest
+      referencePolicy:
+        type: ""
+status:
+  dockerImageRepository: ""
+