Add rudimentary Helm test

Create a simple Helm test to ensure the Region controller
is functional enough to allow the MaaS CLI to establish
an authenticated session with it.

- Also make image cache disabled by default
- Fix init container args for HTK

Change-Id: I67e688efb91198cd31d3972e09808cea3361570c

charts/maas/templates/bin/_maas-test.sh.tpl

@@ -0,0 +1,20 @@
+#!/bin/bash
+{{/*
+# Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License. */}}
+
+set -ex
+
+maas login local ${MAAS_URL} $MAAS_API_KEY
+echo $?

charts/maas/templates/configmap-bin.yaml

@@ -37,3 +37,5 @@ data:
 {{ tuple "bin/_export-api-key.sh.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}
   register-rack-controller.sh: |
 {{ tuple "bin/_register-rack-controller.sh.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}
+  maas-test.sh: |
+{{ tuple "bin/_maas-test.sh.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}

charts/maas/templates/deployment-rack.yaml

@@ -45,7 +45,7 @@ spec:
       hostNetwork: true
       dnsPolicy: ClusterFirst
       initContainers:
-{{ tuple $envAll $dependencies "[]" | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
+{{ tuple $envAll $dependencies list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
       containers:
         - name: maas-rack
           image: {{ .Values.images.tags.maas_rack }}

charts/maas/templates/job-bootstrap-admin-user.yaml

@@ -31,7 +31,7 @@ spec:
       nodeSelector:
         {{ .Values.labels.region.node_selector_key }}: {{ .Values.labels.region.node_selector_value }}
       initContainers:
-{{ tuple $envAll $dependencies "[]" | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
+{{ tuple $envAll $dependencies list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
       containers:
         - name: maas-bootstrap-admin-user
           image: {{ .Values.images.tags.bootstrap }}

charts/maas/templates/job-db-init.yaml

@@ -31,7 +31,7 @@ spec:
       nodeSelector:
         {{ .Values.labels.region.node_selector_key }}: {{ .Values.labels.region.node_selector_value }}
       initContainers:
-{{ tuple $envAll $dependencies "[]" | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
+{{ tuple $envAll $dependencies list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
       containers:
         - name: maas-db-init
           image: {{ .Values.images.tags.db_init | quote }}

charts/maas/templates/job-db-sync.yaml

@@ -31,7 +31,7 @@ spec:
       nodeSelector:
         {{ .Values.labels.region.node_selector_key }}: {{ .Values.labels.region.node_selector_value }}
       initContainers:
-{{ tuple $envAll $dependencies "[]" | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
+{{ tuple $envAll $dependencies list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
       containers:
         - name: maas-db-sync
           image: {{ .Values.images.tags.db_sync }}

charts/maas/templates/job-import.yaml

@@ -31,7 +31,7 @@ spec:
       nodeSelector:
         {{ .Values.labels.region.node_selector_key }}: {{ .Values.labels.region.node_selector_value }}
       initContainers:
-{{ tuple $envAll $dependencies "[]" | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
+{{ tuple $envAll $dependencies list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
       containers:
         - name: region-import-resources
           image: {{ .Values.images.tags.maas_region }}

charts/maas/templates/tests/test-maas-api.yaml

@@ -0,0 +1,52 @@
+{{/*
+# Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License. */}}
+{{/*
+Test that the API is up and can be logged into */}}
+{{- if .Values.manifests.test_maas_api }}
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ .Release.Name }}-api-test"
+  annotations:
+    "helm.sh/hook": "test-success"
+spec:
+  restartPolicy: Never
+  containers:
+    - name: "{{ .Release.Name }}-api-test"
+      env:
+        - name: 'MAAS_URL'
+          value: {{ tuple "maas_region_ui" "internal" "region_ui" . | include "helm-toolkit.endpoints.keystone_endpoint_uri_lookup" | quote }}
+        - name: 'MAAS_API_KEY'
+          valueFrom:
+            secretKeyRef:
+              name: 'maas-api-key'
+              key: 'token'
+      image: {{ .Values.images.tags.maas_region }}
+      imagePullPolicy: {{ .Values.images.pull_policy }}
+{{ tuple . .Values.pod.resources.test | include "helm-toolkit.snippets.kubernetes_resources" | indent 8 }}
+      command: ["/tmp/maas-test.sh"]
+      volumeMounts:
+        - name: maas-bin
+          mountPath: /tmp/maas-test.sh
+          subPath: maas-test.sh
+          readOnly: true
+  volumes:
+    - name: maas-bin
+      configMap:
+        name: maas-bin
+        defaultMode: 0555
+...
+{{- end }}