[znapzend] Add first playground chart with znapzend

ccremer · Feb 29, 2020 · 725fece · 725fece
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diff --git a/README.adoc b/README.adoc
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+= charts
+ccremer's Helm charts repository
+:toc:
+
+toc::[]
+
+include::charts/znapzend/README.adoc[]
diff --git a/README.md b/README.md
diff --git a/charts/znapzend/.helmignore b/charts/znapzend/.helmignore
@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
diff --git a/charts/znapzend/Chart.yaml b/charts/znapzend/Chart.yaml
@@ -0,0 +1,21 @@
+apiVersion: v1
+name: znapzend
+description: Znapzend Helm Chart for automated ZFS snapshot & replication
+
+# 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.
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application.
+appVersion: v0.19.1
diff --git a/charts/znapzend/README.adoc b/charts/znapzend/README.adoc
@@ -0,0 +1,3 @@
+== Znapzend
+
+Some docs to follow soon.
diff --git a/charts/znapzend/templates/NOTES.txt b/charts/znapzend/templates/NOTES.txt
@@ -0,0 +1,21 @@
+1. Get the application URL by running these commands:
+{{- if .Values.metrics.ingress.enabled }}
+{{- range $host := .Values.metrics.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.metrics.ingress.tls }}s{{ end }}://{{ $host.host }}{{ . }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.metrics.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "znapzend.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.metrics.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "znapzend.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "znapzend.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.metrics.service.port }}
+{{- else if contains "ClusterIP" .Values.metrics.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "znapzend.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:80
+{{- end }}
diff --git a/charts/znapzend/templates/_helpers.tpl b/charts/znapzend/templates/_helpers.tpl
@@ -0,0 +1,63 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "znapzend.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 "znapzend.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 "znapzend.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "znapzend.labels" -}}
+helm.sh/chart: {{ include "znapzend.chart" . }}
+{{ include "znapzend.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "znapzend.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "znapzend.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "znapzend.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "znapzend.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}
diff --git a/charts/znapzend/templates/ingress.yaml b/charts/znapzend/templates/ingress.yaml
@@ -0,0 +1,41 @@
+{{- if .Values.metrics.ingress.enabled -}}
+{{- $fullName := include "znapzend.fullname" . -}}
+{{- $svcPort := .Values.metrics.service.port -}}
+{{- if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "znapzend.labels" . | nindent 4 }}
+  {{- with .Values.metrics.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+{{- if .Values.metrics.ingress.tls }}
+  tls:
+  {{- range .Values.metrics.ingress.tls }}
+    - hosts:
+      {{- range .hosts }}
+        - {{ . | quote }}
+      {{- end }}
+      secretName: {{ .secretName }}
+  {{- end }}
+{{- end }}
+  rules:
+  {{- range .Values.metrics.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+        {{- range .paths }}
+          - path: {{ . }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+        {{- end }}
+  {{- end }}
+{{- end }}
diff --git a/charts/znapzend/templates/secret.yaml b/charts/znapzend/templates/secret.yaml
@@ -0,0 +1,25 @@
+{{- if not .Values.ssh.externalSecretName -}}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "znapzend.fullname" . }}
+  labels:
+    {{- include "znapzend.labels" . | nindent 4 }}
+stringData:
+  {{- with .Values.ssh.knownHosts }}
+  known_hosts: |
+  {{- range . }}
+    {{ .host }} {{ .pubKey }}
+  {{ end }}
+  {{- end }}
+  {{- with .Values.ssh.config }}
+  config: |
+    {{- . | nindent 4 }}
+  {{- end }}
+  {{- with .Values.ssh.identities }}
+  {{ range $key,$value := . }}
+  {{- $key }}: |
+    {{- $value | nindent 4 }}
+  {{- end }}
+  {{- end }}
+{{- end }}
diff --git a/charts/znapzend/templates/service.yaml b/charts/znapzend/templates/service.yaml
@@ -0,0 +1,17 @@
+{{- if .Values.metrics.service.enabled -}}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "znapzend.fullname" . }}
+  labels:
+    {{- include "znapzend.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.metrics.service.type }}
+  ports:
+    - port: {{ .Values.metrics.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "znapzend.selectorLabels" . | nindent 4 }}
+{{- end }}
diff --git a/charts/znapzend/templates/statefulset.yaml b/charts/znapzend/templates/statefulset.yaml
@@ -0,0 +1,108 @@
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "znapzend.fullname" . }}
+  labels:
+    {{- include "znapzend.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "znapzend.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "znapzend.selectorLabels" . | nindent 8 }}
+    spec:
+    {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          livenessProbe:
+            exec:
+              command:
+              - pidof
+              - znapzend
+            periodSeconds: 30
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+            - name: zfs
+              mountPath: /dev/zfs
+            {{- if or .Values.ssh.identities .Values.ssh.externalSecretName }}
+            - name: ssh
+              mountPath: {{ .Values.ssh.path }}
+            {{- end }}
+
+        {{- if .Values.metrics.enabled }}
+        {{- with .Values.metrics }}
+        - name: exporter
+          image: "{{ .image.repository }}:{{ .image.tag }}"
+          imagePullPolicy: {{ .image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: 8080
+          env:
+          {{- if .jobs.register }}
+            - name: JOBS_REGISTER
+              value: "{{ .jobs.register | join "," }}"
+          {{- end }}
+          {{- range $key, $value := .env }}
+            - name: {{ $key }}
+              value: {{ $value }}
+          {{- end }}
+          readinessProbe:
+            httpGet:
+              path: /health/ready
+              port: http
+            failureThreshold: 1
+            successThreshold: 1
+            initialDelaySeconds: 5
+          livenessProbe:
+            httpGet:
+              path: /health/alive
+              port: http
+            failureThreshold: 1
+            successThreshold: 1
+            initialDelaySeconds: 5
+          resources:
+            {{- toYaml .resources | nindent 12 }}
+        {{- end }}
+        {{- 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 }}
+      volumes:
+        - name: zfs
+          hostPath:
+            path: "{{ .Values.host.zfsDevice }}"
+            type: CharDevice
+        {{- with .Values.ssh }}
+        {{- if or .identities .externalSecretName }}
+        - name: ssh
+          secret:
+            {{- if .externalSecretName }}
+            secretName: {{ .externalSecretName }}
+            {{- else }}
+            secretName: {{ include "znapzend.fullname" . }}
+            {{- end }}
+            defaultMode: 0600
+        {{- end }}
+        {{- end }}