Add e2e test for adding configMap to allow defining parameters for SS…

…H client (argoproj-labs#873)

Signed-off-by: Cheng Fang <cfang@redhat.com>

test/e2e/suite/103-ssh-client-config/01-assert.yaml

@@ -0,0 +1,35 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: argocd-image-updater-ssh-config
+data:
+  config: |-
+    Host *
+          PubkeyAcceptedAlgorithms +ssh-rsa
+          HostkeyAlgorithms +ssh-rsa
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: argocd-image-updater
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: argocd-image-updater
+  template:
+    spec:
+      containers:
+        - name: argocd-image-updater
+          volumeMounts:
+          - mountPath: /app/config
+            name: image-updater-conf
+          - mountPath: /app/config/ssh
+            name: ssh-known-hosts
+          - mountPath: /app/.ssh
+            name: ssh-config
+          - mountPath: /tmp
+            name: tmp
+          - mountPath: /app/ssh-keys/id_rsa
+            name: ssh-signing-key
+            readOnly: true
+            subPath: sshPrivateKey

test/e2e/suite/103-ssh-client-config/01-install.yaml

@@ -0,0 +1,5 @@
+apiVersion: kuttl.dev/v1beta1
+kind: TestStep
+commands:
+- command: kubectl -n argocd-image-updater-e2e apply -k .
+- command: sleep 5

test/e2e/suite/103-ssh-client-config/99-delete.yaml

@@ -0,0 +1,5 @@
+apiVersion: kuttl.dev/v1beta1
+kind: TestStep
+commands:
+- command: kubectl -n argocd-image-updater-e2e delete -k .
+- command: sleep 5

test/e2e/suite/103-ssh-client-config/README.md

@@ -0,0 +1,55 @@
+This test case verifies the support for configuring ssh client via the config map `argocd-image-updater-ssh-config`.
+
+This test case performs the following steps:
+* kustomize the default argocd-image-updater installation by adding custom ssh config data to the config map `argocd-image-updater-ssh-config`
+* install the customized argocd-image-updater to the test cluster
+* verify that the customized ssh config (config map and volume mount) are present 
+* uninstall argocd-image-updater from the test cluster
+
+To run this individual test case,
+
+* make sure both docker daemon and k8s cluster is running
+* `cd $HOME/go/src/image-updater/test/e2e`
+* `SRC_DIR=$HOME/go/src/image-updater kubectl kuttl test --namespace argocd-image-updater-e2e --timeout 120 --test 103-ssh-client-config`
+
+Test output:
+```bash
+    harness.go:278: Successful connection to cluster at: https://0.0.0.0:58961
+    harness.go:363: running tests
+    harness.go:75: going to run test suite with timeout of 120 seconds for each step
+    harness.go:375: testsuite: ./suite has 8 tests
+=== RUN   kuttl/harness
+=== RUN   kuttl/harness/103-ssh-client-config
+=== PAUSE kuttl/harness/103-ssh-client-config
+=== CONT  kuttl/harness/103-ssh-client-config
+    logger.go:42: 19:47:52 | 103-ssh-client-config/1-install | starting test step 1-install
+    logger.go:42: 19:47:52 | 103-ssh-client-config/1-install | running command: [kubectl -n argocd-image-updater-e2e apply -k .]
+    logger.go:42: 19:47:53 | 103-ssh-client-config/1-install | serviceaccount/argocd-image-updater created
+    logger.go:42: 19:47:53 | 103-ssh-client-config/1-install | role.rbac.authorization.k8s.io/argocd-image-updater created
+    logger.go:42: 19:47:53 | 103-ssh-client-config/1-install | rolebinding.rbac.authorization.k8s.io/argocd-image-updater created
+    logger.go:42: 19:47:53 | 103-ssh-client-config/1-install | configmap/argocd-image-updater-config created
+    logger.go:42: 19:47:53 | 103-ssh-client-config/1-install | configmap/argocd-image-updater-ssh-config created
+    logger.go:42: 19:47:53 | 103-ssh-client-config/1-install | secret/argocd-image-updater-secret created
+    logger.go:42: 19:47:53 | 103-ssh-client-config/1-install | deployment.apps/argocd-image-updater created
+    logger.go:42: 19:47:53 | 103-ssh-client-config/1-install | running command: [sleep 5]
+    logger.go:42: 19:47:58 | 103-ssh-client-config/1-install | test step completed 1-install
+    logger.go:42: 19:47:58 | 103-ssh-client-config/99-delete | starting test step 99-delete
+    logger.go:42: 19:47:58 | 103-ssh-client-config/99-delete | running command: [kubectl -n argocd-image-updater-e2e delete -k .]
+    logger.go:42: 19:47:59 | 103-ssh-client-config/99-delete | serviceaccount "argocd-image-updater" deleted
+    logger.go:42: 19:47:59 | 103-ssh-client-config/99-delete | role.rbac.authorization.k8s.io "argocd-image-updater" deleted
+    logger.go:42: 19:47:59 | 103-ssh-client-config/99-delete | rolebinding.rbac.authorization.k8s.io "argocd-image-updater" deleted
+    logger.go:42: 19:47:59 | 103-ssh-client-config/99-delete | configmap "argocd-image-updater-config" deleted
+    logger.go:42: 19:47:59 | 103-ssh-client-config/99-delete | configmap "argocd-image-updater-ssh-config" deleted
+    logger.go:42: 19:47:59 | 103-ssh-client-config/99-delete | secret "argocd-image-updater-secret" deleted
+    logger.go:42: 19:47:59 | 103-ssh-client-config/99-delete | deployment.apps "argocd-image-updater" deleted
+    logger.go:42: 19:47:59 | 103-ssh-client-config/99-delete | running command: [sleep 5]
+    logger.go:42: 19:48:04 | 103-ssh-client-config/99-delete | test step completed 99-delete
+    logger.go:42: 19:48:04 | 103-ssh-client-config | skipping kubernetes event logging
+=== NAME  kuttl
+    harness.go:407: run tests finished
+    harness.go:515: cleaning up
+    harness.go:572: removing temp folder: ""
+--- PASS: kuttl (12.08s)
+    --- PASS: kuttl/harness (0.00s)
+        --- PASS: kuttl/harness/103-ssh-client-config (12.07s)
+```

test/e2e/suite/103-ssh-client-config/clusterrolebinding.json

@@ -0,0 +1,7 @@
+[
+	{
+		"op": "replace",
+		"path": "/subjects/0/namespace",
+		"value": "argocd-image-updater-e2e"
+	}
+]

test/e2e/suite/103-ssh-client-config/config

@@ -0,0 +1,3 @@
+Host *
+      PubkeyAcceptedAlgorithms +ssh-rsa
+      HostkeyAlgorithms +ssh-rsa

test/e2e/suite/103-ssh-client-config/kustomization.yaml

@@ -0,0 +1,16 @@
+resources:
+  - https://github.com/argoproj-labs/argocd-image-updater/manifests/base?ref=stable
+
+configMapGenerator:
+  - name: argocd-image-updater-ssh-config
+    behavior: merge
+    files:
+      - config
+
+patches:
+  - path: clusterrolebinding.json
+    target:
+      group: rbac.authorization.k8s.io
+      version: v1
+      kind: ClusterRoleBinding
+      name: argocd-image-updater