Tests

onechart/templates/deployment.yaml

@@ -32,6 +32,9 @@ spec:
             {{- toYaml .Values.securityContext | nindent 12 }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
+          {{- if .Values.command }}
+          command: ['{{ .Values.shell | default "/bin/sh" }}', {{ .Values.command | quote }}]
+          {{- end }}
           envFrom:
             - configMapRef:
                 name: {{ .Release.Name }}

onechart/tests/deployment_command_test.yaml

@@ -0,0 +1,20 @@
+suite: test deployment
+templates:
+  - deployment.yaml
+  - configmap.yaml
+tests:
+  - it: Should set command
+    set:
+      command: "while true; date; sleep 2; done"
+    asserts:
+      - equal:
+          path: spec.template.spec.containers[0].command
+          value: ['/bin/sh', 'while true; date; sleep 2; done']
+  - it: Should set shell and command
+    set:
+      command: "while true; date; sleep 2; done"
+      shell: "/bin/ash"
+    asserts:
+      - equal:
+          path: spec.template.spec.containers[0].command
+          value: ['/bin/ash', 'while true; date; sleep 2; done']

onechart/tests/deployment_configmap_test.yaml

@@ -0,0 +1,15 @@
+suite: test deployment
+templates:
+  - configmap.yaml
+tests:
+  - it: Should vars in ConfigMap
+    set:
+      vars:
+        var1: value1
+        var2: value2
+    asserts:
+      - equal:
+          path: data
+          value:
+            var1: value1
+            var2: value2

onechart/tests/deployment_image_test.yaml

@@ -0,0 +1,22 @@
+suite: test deployment
+templates:
+  - deployment.yaml
+  - configmap.yaml
+tests:
+  - it: Should set image and tag
+    set:
+      image.repository: nginx
+      image.tag: x.y.z
+    asserts:
+      - equal:
+          path: spec.template.spec.containers[0].image
+          value: nginx:x.y.z
+  - it: Should set an ImagePullSecret
+    set:
+      imagePullSecrets:
+        - name: regcred
+    asserts:
+      - equal:
+          path: spec.template.spec.imagePullSecrets
+          value:
+            - name: regcred

onechart/tests/deployment_volumes_test.yaml

@@ -0,0 +1,33 @@
+suite: test deployment
+templates:
+  - deployment.yaml
+  - configmap.yaml
+  - pvc.yaml
+tests:
+  - it: Should mount volume
+    set:
+      volumes:
+        - name: data
+          path: /var/lib/1clickinfra/data
+          size: 10Gi
+          storageClass: default
+    asserts:
+      - equal:
+          path: spec.template.spec.containers[0].volumeMounts
+          value:
+            - name: data
+              mountPath: /var/lib/1clickinfra/data
+  - it: Should reference volume
+    set:
+      volumes:
+        - name: data
+          path: /var/lib/1clickinfra/data
+          size: 10Gi
+          storageClass: default
+    asserts:
+      - equal:
+          path: spec.template.spec.volumes
+          value:
+            - name: data
+              persistentVolumeClaim:
+                claimName: RELEASE-NAME-data

onechart/tests/ingress_domain_test.yaml

@@ -0,0 +1,25 @@
+suite: test deployment
+templates:
+  - ingress.yaml
+tests:
+  - it: Should set Ingress host name
+    set:
+      ingress:
+        host: chart-example.local
+    asserts:
+      - equal:
+          path: spec.tls
+          value:
+            - hosts:
+                - chart-example.local
+              secretName: tls-RELEASE-NAME
+  - it: Should set Ingress annotation
+    set:
+      ingress:
+        annotations:
+          kubernetes.io/ingress.class: nginx
+    asserts:
+      - equal:
+          path: metadata.annotations
+          value:
+            kubernetes.io/ingress.class: nginx

onechart/tests/pvc_test.yaml

@@ -0,0 +1,15 @@
+suite: test deployment
+templates:
+  - pvc.yaml
+tests:
+  - it: Should create PVC
+    set:
+      volumes:
+        - name: data
+          path: /var/lib/1clickinfra/data
+          size: 10Gi
+          storageClass: default
+    asserts:
+      - equal:
+          path: spec.storageClassName
+          value: default

website/docs/examples/custom-command.md

@@ -23,3 +23,19 @@ EOF
 
 helm template my-release onechart/onechart -f values.yaml
 ```
+
+### Running a command in Alpine Linux
+
+```bash
+cat << EOF > values.yaml
+image:
+  repository: alpine
+  tag: 3.12
+
+command: |
+  echo "hello"
+shell: "/bin/ash"
+EOF
+
+helm template my-release onechart/onechart -f values.yaml
+```