Fixing custom command

onechart/templates/deployment.yaml

@@ -33,7 +33,7 @@ spec:
           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 }}]
+          command: ['{{ .Values.shell | default "/bin/sh" }}', "-c", {{ .Values.command | quote }}]
           {{- end }}
           envFrom:
             {{- if .Values.vars }}

onechart/tests/deployment_command_test.yaml

@@ -5,16 +5,16 @@ templates:
 tests:
   - it: Should set command
     set:
-      command: "while true; date; sleep 2; done"
+      command: "while true; do date; sleep 2; done"
     asserts:
       - equal:
           path: spec.template.spec.containers[0].command
-          value: ['/bin/sh', 'while true; date; sleep 2; done']
+          value: ['/bin/sh', '-c', 'while true; do date; sleep 2; done']
   - it: Should set shell and command
     set:
-      command: "while true; date; sleep 2; done"
+      command: "while true; do 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']
+          value: ['/bin/ash', '-c','while true; do date; sleep 2; done']

website/docs/examples/custom-command.md

@@ -6,7 +6,7 @@ image:
   tag: stable-slim
 
 command: |
-  while true; date; sleep 2; done
+  while true; do date; sleep 2; done
 ```
 
 Check the Kubernetes manifest:
@@ -18,7 +18,7 @@ image:
   tag: stable-slim
 
 command: |
-  echo "hello"
+  while true; do date; sleep 2; done
 EOF
 
 helm template my-release onechart/onechart -f values.yaml
@@ -33,7 +33,7 @@ image:
   tag: 3.12
 
 command: |
-  echo "hello"
+  while true; do date; sleep 2; done
 shell: "/bin/ash"
 EOF