add haproxy chart

README.md

@@ -6,6 +6,7 @@ This repository contains [Helm](https://helm.sh) charts for various projects
 * [External Secrets Operator](https://github.com/slamdev/helm-charts/tree/master/charts/external-secrets-operator)
 * [Gitlab Omnibus](https://github.com/slamdev/helm-charts/tree/master/charts/gitlab-omnibus)
 * [Gradle Cache](https://github.com/slamdev/helm-charts/tree/master/charts/gradle-cache)
+* [HAProxy](https://github.com/slamdev/helm-charts/tree/master/charts/haproxy)
 * [Nginx](https://github.com/slamdev/helm-charts/tree/master/charts/nginx)
 * [Weblate](https://github.com/slamdev/helm-charts/tree/master/charts/weblate)
 

charts/haproxy/Chart.yaml

@@ -0,0 +1,12 @@
+apiVersion: v2
+name: haproxy
+description: |-
+  Helm chart to deploy [haproxy](http://www.haproxy.org/).
+type: application
+version: 0.0.1
+appVersion: 2.1.4
+home: https://github.com/slamdev/helm-charts/tree/master/charts/haproxy
+icon: http://www.haproxy.org/img/HAProxyCommunityEdition_60px.png
+maintainers:
+  - name: slamdev
+    email: [email protected]

charts/haproxy/README.md

@@ -0,0 +1,41 @@
+haproxy
+=======
+Helm chart to deploy [haproxy](http://www.haproxy.org/).
+
+Current chart version is `0.0.1`
+
+Source code can be found [here](https://github.com/slamdev/helm-charts/tree/master/charts/haproxy)
+
+
+
+## Chart Values
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| affinity | object | `{}` | affinity for scheduler pod assignment |
+| containerPorts | list | `[{"containerPort":8000,"name":"http","protocol":"TCP"}]` | ports exposed by container |
+| env | list | `[]` | additional environment variables for the deployment |
+| fullnameOverride | string | `""` | full name of the chart. |
+| haproxyConf | string | `"global\n    log stdout format raw local0 info\n\ndefaults\n    timeout connect 1s\n    timeout client  1s\n    timeout server  1s\n    log     global\n    option  httplog\n\nfrontend        status-monitor\n    mode        http\n    bind        :8000\n    monitor-uri /"` | haproxy config to provision inside of the container |
+| image.pullPolicy | string | `"IfNotPresent"` | image pull policy |
+| image.repository | string | `"haproxy"` | image repository |
+| image.tag | string | `""` | image tag (chart's appVersion value will be used if not set) |
+| imagePullSecrets | list | `[]` | image pull secret for private images |
+| livenessProbe.httpGet.path | string | `"/"` | path for liveness probe |
+| livenessProbe.httpGet.port | string | `"http"` | port for liveness probe |
+| nameOverride | string | `""` | override name of the chart |
+| nodeSelector | object | `{}` | node for scheduler pod assignment |
+| podSecurityContext | object | `{}` | specifies security settings for a pod |
+| readinessProbe.httpGet.path | string | `"/"` | path for readiness probe |
+| readinessProbe.httpGet.port | string | `"http"` | port for readiness probe |
+| replicaCount | int | `1` | number of replicas for haproxy deployment. |
+| resources | object | `{}` | custom resource configuration |
+| securityContext | object | `{}` | specifies security settings for a container |
+| service.ports | list | `[{"name":"http","port":80,"protocol":"TCP","targetPort":"http"}]` | service ports |
+| service.type | string | `"ClusterIP"` | service type |
+| serviceAccount.annotations | object | `{}` | annotations to add to the service account |
+| serviceAccount.create | bool | `false` | specifies whether a service account should be created |
+| serviceAccount.name | string | `nil` | the name of the service account to use; if not set and create is true, a name is generated using the fullname template |
+| tolerations | list | `[]` | tolerations for scheduler pod assignment |
+| volumeMounts | list | `[]` | additional volume mounts |
+| volumes | list | `[]` | additional volumes |

charts/haproxy/templates/NOTES.txt

@@ -0,0 +1,15 @@
+1. Get the application URL by running these commands:
+{{- if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "haproxy.fullname" . }})
+  export NODE_IP=$(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.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 "haproxy.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "haproxy.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "haproxy.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 }}

charts/haproxy/templates/_helpers.tpl

@@ -0,0 +1,70 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "haproxy.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 "haproxy.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 "haproxy.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "haproxy.labels" -}}
+helm.sh/chart: {{ include "haproxy.chart" . }}
+{{ include "haproxy.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "haproxy.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "haproxy.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "haproxy.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "haproxy.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create the tag for the docker image to use
+*/}}
+{{- define "haproxy.tag" -}}
+{{- .Values.image.tag | default (printf "%s-%s" .Chart.AppVersion "alpine") -}}
+{{- end -}}

charts/haproxy/templates/configmap.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "haproxy.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "haproxy.labels" . | nindent 4 }}
+data:
+  haproxy.cfg: |-
+    {{ .Values.haproxyConf | nindent 4 }}

charts/haproxy/templates/deployment.yaml

@@ -0,0 +1,79 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "haproxy.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "haproxy.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "haproxy.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "haproxy.selectorLabels" . | nindent 8 }}
+      annotations:
+        checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+    spec:
+    {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      serviceAccountName: {{ include "haproxy.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          args:
+            - -f
+            - /etc/haproxy.cfg
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ include "haproxy.tag" . }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+        {{- with .Values.containerPorts }}
+          ports:
+            {{- toYaml . | nindent 12 }}
+        {{- end }}
+          livenessProbe:
+            {{- toYaml .Values.livenessProbe | nindent 12 }}
+          readinessProbe:
+            {{- toYaml .Values.readinessProbe | nindent 12 }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+        {{- with .Values.env }}
+          env:
+            {{- toYaml . | nindent 12 }}
+        {{- end }}
+          volumeMounts:
+            - name: {{ include "haproxy.fullname" . }}
+              mountPath: /etc/haproxy.cfg
+              subPath: haproxy.cfg
+        {{- with .Values.volumeMounts }}
+            {{- toYaml . | nindent 12 }}
+        {{- end }}
+      volumes:
+        - name: {{ include "haproxy.fullname" . }}
+          configMap:
+            name: {{ include "haproxy.fullname" . }}
+            items:
+              - key: haproxy.cfg
+                path: haproxy.cfg
+                mode: 292 # 0444
+    {{- with .Values.volumes }}
+        {{- toYaml . | nindent 8 }}
+    {{- 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/haproxy/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "haproxy.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "haproxy.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+{{- with .Values.service.ports }}
+  ports:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+  selector:
+    {{- include "haproxy.selectorLabels" . | nindent 4 }}

charts/haproxy/templates/serviceaccount.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "haproxy.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "haproxy.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end -}}

charts/haproxy/templates/tests/test-connection.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "haproxy.fullname" . }}-test-connection"
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "haproxy.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test-success
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args: ['{{ include "haproxy.fullname" . }}:{{ .Values.service.port }}']
+  restartPolicy: Never