Cronjob

charts/cron-job/.helmignore

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+tests

charts/cron-job/Chart.yaml

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+apiVersion: v2
+name: cron-job
+description: One chart to rule them all. A generic Helm chart for your application deployments. Because no-one can remember the Kubernetes yaml syntax.
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0

charts/cron-job/templates/NOTES.txt

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+TODO intro text

charts/cron-job/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "helm-chart.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "helm-chart.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "helm-chart.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "helm-chart.labels" -}}
+helm.sh/chart: {{ include "helm-chart.chart" . }}
+{{ include "helm-chart.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "helm-chart.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "helm-chart.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "helm-chart.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "helm-chart.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

charts/cron-job/templates/configmap.yaml

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+{{- if .Values.vars }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ .Release.Name }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "helm-chart.labels" . | nindent 4 }}
+data:
+{{- range $key, $val := .Values.vars }}
+  {{ $key }}: {{ $val | quote }}
+{{- end }}
+{{- end }}

charts/cron-job/templates/cronJob.yaml

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+apiVersion: batch/v1beta1
+kind: CronJob
+metadata:
+  name: {{ .Release.Name }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{ include "helm-chart.labels" . | nindent 4 }}
+spec:
+  schedule: {{ .Values.schedule }}
+  successfulJobsHistoryLimit: 1
+  failedJobsHistoryLimit: 1
+  concurrencyPolicy: Forbid
+  startingDeadlineSeconds: 120
+  jobTemplate:
+    spec:
+      template:
+        spec:
+          {{- with .Values.imagePullSecrets }}
+          imagePullSecrets:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          restartPolicy: Never
+          containers:
+            - name: {{ .Release.Name }}
+              image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+              {{- if .Values.vars }}
+              imagePullPolicy: {{ .Values.image.pullPolicy }}
+              {{- end }}
+              command:
+                - {{ .Values.shell | default "/bin/sh" }}
+                - -c
+                - {{ .Values.command | default "echo I'm alive" | quote }}
+              envFrom:
+                {{- if .Values.vars }}
+                - configMapRef:
+                    name: {{ .Release.Name }}
+                {{- end }}
+                {{- if .Values.secret.enabled }}
+                - secretRef:
+                    name: {{ .Release.Name }}
+                {{- end }}
+              volumeMounts:
+                {{- range .Values.volumes }}
+                - name: {{ .name }}
+                  mountPath: {{ .path }}
+                {{- end }}
+              resources:
+                {{ toYaml .Values.resources | nindent 16 }}
+          volumes:
+            {{- range .Values.volumes }}
+            - name: {{ .name }}
+              persistentVolumeClaim:
+                claimName: {{ printf "%s-%s" $.Release.Name .name }}
+            {{- end }}
+            {{ with .Values.nodeSelector }}
+          nodeSelector:
+            {{ toYaml . | nindent 8 }}
+          {{- end }}
+          {{ with .Values.affinity }}
+          affinity:
+            {{ toYaml . | nindent 8 }}
+          {{- end }}
+          {{ with .Values.tolerations }}
+          tolerations:
+            {{ toYaml . | nindent 8 }}
+          {{- end }}

charts/cron-job/templates/pvc.yaml

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+{{- range .Values.volumes }}
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ printf "%s-%s" $.Release.Name .name }}
+  namespace: {{ $.Release.Namespace }}
+spec:
+  accessModes:
+    - {{ .accessMode | default "ReadWriteOnce" }}
+  storageClassName: {{ .storageClass | default "local-path" }}
+  resources:
+    requests:
+      storage: {{ .size | default "1Gi" }}
+{{- end }}

charts/cron-job/tests/configmap_test.yaml

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+suite: test cron job
+templates:
+  - configmap.yaml
+tests:
+  - it: Should put vars in ConfigMap
+    set:
+      vars:
+        var1: value1
+        var2: value2
+    asserts:
+      - equal:
+          path: data
+          value:
+            var1: value1
+            var2: value2

charts/cron-job/tests/cronjob_command_test.yaml

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

charts/cron-job/tests/cronjob_configmap_test.yaml

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+suite: test deployment
+templates:
+  - cronJob.yaml
+  - configmap.yaml
+tests:
+  - it: Should reference configmap if vars are set
+    set:
+      vars:
+        var1: value1
+        var2: value2
+    asserts:
+      - contains:
+          path: spec.jobTemplate.spec.template.spec.containers[0].envFrom
+          content:
+            configMapRef:
+              name: RELEASE-NAME
+  - it: Should not reference configmap if vars are not set
+    asserts:
+      - isNull:
+          path: spec.jobTemplate.spec.template.spec.containers[0].envFrom

charts/cron-job/tests/cronjob_image_test.yaml

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

charts/cron-job/tests/cronjob_secret_test.yaml

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+suite: test cron job
+templates:
+  - cronJob.yaml
+  - configmap.yaml
+tests:
+  - it: Should reference secret if secret is enabled
+    set:
+      secret.enabled: true
+    asserts:
+      - contains:
+          path: spec.jobTemplate.spec.template.spec.containers[0].envFrom
+          content:
+            secretRef:
+              name: RELEASE-NAME
+  - it: Should not reference secret if secret is disabled
+    set:
+      secret.enabled: false
+    asserts:
+      - isNull:
+          path: spec.jobTemplate.spec.template.spec.containers[0].envFrom

charts/cron-job/tests/cronjob_volumes_test.yaml

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+suite: test cron job
+templates:
+  - cronJob.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.jobTemplate.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.jobTemplate.spec.template.spec.volumes
+          value:
+            - name: data
+              persistentVolumeClaim:
+                claimName: RELEASE-NAME-data

charts/cron-job/tests/pvc_test.yaml

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+suite: test cron job
+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

charts/cron-job/values.yaml

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+image:
+  repository: debian
+  tag: stable-slim
+
+nameOverride: ""
+fullnameOverride: ""
+
+podAnnotations: {}
+
+podSecurityContext:
+  fsGroup: 999
+
+securityContext: {}
+
+resources: {}
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}
+
+secret:
+  enabled: false

charts/onechart/templates/deployment.yaml

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           image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           {{- if .Values.command }}
-          command: ['{{ .Values.shell | default "/bin/sh" }}', "-c", {{ .Values.command | quote }}]
+          command:
+            - {{ .Values.shell | default "/bin/sh" }}
+            - -c
+            - {{ .Values.command | quote }}
           {{- end }}
           envFrom:
             {{- if .Values.vars }}