Merge pull request #3484 from kubernetes-sigs/issue3377

Demonstrate issue #3377 is fixed.

api/krusty/issue3377_test.go

@@ -0,0 +1,283 @@
+// Copyright 2021 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package krusty_test
+
+import (
+	"testing"
+
+	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
+)
+
+func TestIssue3377(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	opts := th.MakeDefaultOptions()
+	th.WriteK(".", `
+resources:
+- service-a.yaml
+- service-b.yaml
+
+patchesJson6902:
+- path: service-a-patch.yaml
+  target:
+    version: v1
+    group: networking.k8s.io
+    kind: Ingress
+    name: service-a
+- path: service-b-patch.yaml
+  target:
+    version: v1
+    group: networking.k8s.io
+    kind: Ingress
+    name: service-b
+vars:
+- name: SERVICE_A_DNS_NAME
+  objref:
+    apiVersion: networking.k8s.io/v1
+    kind: Ingress
+    name: service-a
+  fieldref:
+    fieldpath: spec.rules[0].host
+- name: SERVICE_B_DNS_NAME
+  objref:
+    apiVersion: networking.k8s.io/v1
+    kind: Ingress
+    name: service-b
+  fieldref:
+    fieldpath: spec.rules[0].host
+`)
+
+	th.WriteF("service-a.yaml", `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: service-a
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: service-a
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/component: service-a
+    spec:
+      containers:
+      - image: repository/service-a:v1
+        imagePullPolicy: Always
+        name: service-b
+        ports:
+        - containerPort: 8080
+        env:
+        - name: REDIRECT_URI
+          value: "http://$(SERVICE_B_DNS_NAME):80/oauth_redir"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: service-a
+  labels:
+    app.kubernetes.io/component: service-a
+spec:
+  type: LoadBalancer
+  ports:
+  - port: 8080
+  selector:
+    app.kubernetes.io/component: service-a
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: service-a
+spec:
+  rules:
+  - host: service-a.k8s.com
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: service-a
+            port:
+              number: 8080
+`)
+
+	th.WriteF("service-a-patch.yaml", `
+- op: replace
+  path: /spec/rules/0/host
+  value: new-service-a.k8s.com
+`)
+
+	th.WriteF("service-b.yaml", `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: service-b
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: service-b
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/component: service-b
+    spec:
+      containers:
+      - image: repository/service-b:v1
+        imagePullPolicy: Always
+        name: service-b
+        ports:
+        - containerPort: 8080
+        env:
+        - name: REDIRECT_URI
+          value: "http://$(SERVICE_A_DNS_NAME):80/oauth_redir"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: service-b
+  labels:
+    app.kubernetes.io/component: service-b
+spec:
+  type: LoadBalancer
+  ports:
+  - port: 8080
+  selector:
+    app.kubernetes.io/component: service-b
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: service-b
+spec:
+  rules:
+  - host: service-b.k8s.com
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: service-b
+            port:
+              number: 8080
+`)
+	th.WriteF("service-b-patch.yaml", `
+- op: replace
+  path: /spec/rules/0/host
+  value: new-service-b.k8s.com
+`)
+	m := th.Run(".", opts)
+	th.AssertActualEqualsExpected(
+		m, `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: service-a
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: service-a
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/component: service-a
+    spec:
+      containers:
+      - env:
+        - name: REDIRECT_URI
+          value: http://new-service-b.k8s.com:80/oauth_redir
+        image: repository/service-a:v1
+        imagePullPolicy: Always
+        name: service-b
+        ports:
+        - containerPort: 8080
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app.kubernetes.io/component: service-a
+  name: service-a
+spec:
+  ports:
+  - port: 8080
+  selector:
+    app.kubernetes.io/component: service-a
+  type: LoadBalancer
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: service-a
+spec:
+  rules:
+  - host: new-service-a.k8s.com
+    http:
+      paths:
+      - backend:
+          service:
+            name: service-a
+            port:
+              number: 8080
+        path: /
+        pathType: Prefix
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: service-b
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: service-b
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/component: service-b
+    spec:
+      containers:
+      - env:
+        - name: REDIRECT_URI
+          value: http://new-service-a.k8s.com:80/oauth_redir
+        image: repository/service-b:v1
+        imagePullPolicy: Always
+        name: service-b
+        ports:
+        - containerPort: 8080
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app.kubernetes.io/component: service-b
+  name: service-b
+spec:
+  ports:
+  - port: 8080
+  selector:
+    app.kubernetes.io/component: service-b
+  type: LoadBalancer
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: service-b
+spec:
+  rules:
+  - host: new-service-b.k8s.com
+    http:
+      paths:
+      - backend:
+          service:
+            name: service-b
+            port:
+              number: 8080
+        path: /
+        pathType: Prefix
+`)
+}