Add nginx-ldapauth-proxy (helm#3013)

* Add nginx-ldapauth-proxy We created this as an authentication layer on top of our ELK stack. We thought it might be useful for other people as well. * Add sources and github usernames * Fix API version for deployment Add spec.selector matchlabels * Add release to selector matchLabels * Update metadata to nre release * Use new template for chart label * Fix app matchlabels for deployment * Move nginx-ldapauth-proxy to stable * Change default proxy service to kubernetes.default * Only enable ldap auth if ldapHost and ldapBindPassword are set * Make sure / is available * Add stub_status to status location in nginx * Remove superfluous $
agolo · May 25, 2018 · af218b0 · af218b0
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diff --git a/stable/nginx-ldapauth-proxy/.helmignore b/stable/nginx-ldapauth-proxy/.helmignore
@@ -0,0 +1,21 @@
+# 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
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
diff --git a/stable/nginx-ldapauth-proxy/Chart.yaml b/stable/nginx-ldapauth-proxy/Chart.yaml
@@ -0,0 +1,14 @@
+apiVersion: v1
+description: nginx proxy with ldapauth
+name: nginx-ldapauth-proxy
+icon: https://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Nginx_logo.svg/500px-Nginx_logo.svg.png
+version: 0.1.2
+appVersion: 1.13.5
+sources:
+- https://github.com/dweomer/dockerfiles-nginx-auth-ldap
+- https://github.com/kvspb/nginx-auth-ldap
+maintainers:
+- name: rendhalver
+  email: [email protected]
+- name: jar361
+  email: [email protected]
diff --git a/stable/nginx-ldapauth-proxy/templates/NOTES.txt b/stable/nginx-ldapauth-proxy/templates/NOTES.txt
@@ -0,0 +1,19 @@
+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range .Values.ingress.hosts }}
+  http://{{ . }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "nginx-ldapauth-proxy.fullname" . }})
+  export NODE_IP=$(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 svc -w {{ template "nginx-ldapauth-proxy.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "nginx-ldapauth-proxy.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  echo http://$SERVICE_IP:{{ .Values.service.externalPort }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "nginx-ldapauth-proxy.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl port-forward $POD_NAME 8080:{{ .Values.service.internalPort }}
+{{- end }}
diff --git a/stable/nginx-ldapauth-proxy/templates/_helpers.tpl b/stable/nginx-ldapauth-proxy/templates/_helpers.tpl
@@ -0,0 +1,32 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "nginx-ldapauth-proxy.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 "nginx-ldapauth-proxy.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 "nginx-ldapauth-proxy.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
diff --git a/stable/nginx-ldapauth-proxy/templates/configmap.yaml b/stable/nginx-ldapauth-proxy/templates/configmap.yaml
@@ -0,0 +1,71 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "nginx-ldapauth-proxy.fullname" . }}
+  labels:
+    app: {{ template "nginx-ldapauth-proxy.name" . }}
+    chart: {{ template "nginx-ldapauth-proxy.chart" . }}
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+data:
+  nginx.conf: |-
+    worker_processes 10;
+    worker_rlimit_nofile 16384;
+
+    events {
+        worker_connections 1024;
+    }
+
+    http {
+
+        upstream backend-server {
+            server {{ .Values.proxy.host}}:{{ .Values.proxy.port }};
+        }
+
+{{- if and .Values.proxy.ldapHost .Values.secrets.ldapBindPassword }}
+        ldap_server ldapserver {
+            url ldap://{{ .Values.proxy.ldapHost }}:{{ .Values.proxy.ldapPort }}/{{ .Values.proxy.ldapDN }}?uid?sub?(&({{ .Values.proxy.ldapFilter}}));
+            binddn "{{ .Values.proxy.ldapBindDN }}";
+            binddn_passwd {{ .Values.secrets.ldapBindPassword }};
+            group_attribute {{ .Values.proxy.ldapGroup }};
+            group_attribute_is_dn on;
+        {{- range $require := .Values.proxy.requires }}
+            require group {{ $require.filter | quote }};
+        {{- end }}
+            require valid_user;
+            satisfy all;
+        }
+{{- end }}
+
+        server {
+
+            listen {{ .Values.service.internalPort }};
+            server_name ldapauth-proxy;
+
+            error_log /var/log/nginx/error.log debug;
+            access_log /var/log/nginx/access.log;
+
+            client_max_body_size 0;
+
+            chunked_transfer_encoding on;
+
+            location / {
+{{- if and .Values.proxy.ldapHost .Values.secrets.ldapBindPassword }}
+                auth_ldap "{{ .Values.proxy.authName }}";
+                auth_ldap_servers ldapserver;
+                proxy_pass                       http://backend-server;
+                proxy_set_header  Host           $http_host;   # required for docker client's sake
+                proxy_set_header  X-Real-IP      $remote_addr; # pass on real client's IP
+                proxy_set_header  Authorization  ""; # see https://github.com/dotcloud/docker-registry/issues/170
+                proxy_read_timeout               900;
+{{- end }}
+            }
+
+            location /_ping {
+                auth_basic off;
+                root   /usr/share/nginx/html;
+                stub_status on;
+            }
+        }
+
+    }
diff --git a/stable/nginx-ldapauth-proxy/templates/deployment.yaml b/stable/nginx-ldapauth-proxy/templates/deployment.yaml
@@ -0,0 +1,73 @@
+apiVersion: apps/v1beta2
+kind: Deployment
+metadata:
+  name: {{ template "nginx-ldapauth-proxy.fullname" . }}
+  labels:
+    app: {{ template "nginx-ldapauth-proxy.name" . }}
+    chart: {{ template "nginx-ldapauth-proxy.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  selector:
+    matchLabels:
+      app: {{ template "nginx-ldapauth-proxy.name" . }}
+      release: {{ .Release.Name }}
+  replicas: {{ .Values.replicaCount }}
+  template:
+    metadata:
+      labels:
+        app: {{ template "nginx-ldapauth-proxy.name" . }}
+        release: {{ .Release.Name }}
+      annotations:
+        checksum/config: {{ include (print .Template.BasePath "/configmap.yaml") . | sha256sum }}
+    spec:
+    {{- if .Values.image.pullSecrets }}
+      {{- range $pullSecret := .Values.image.pullSecrets }}
+      imagePullSecrets:
+        - name: {{ $pullSecret }}
+      {{- end }}
+    {{- end }}
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+{{- if and .Values.proxy.ldapHost .Values.secrets.ldapBindPassword }}
+          env:
+            - name: LDAP_BIND_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ template "nginx-ldapauth-proxy.fullname" . }}
+                  key: ldapBindPassword
+{{- end }}
+          ports:
+            - containerPort: {{ .Values.service.internalPort }}
+          livenessProbe:
+            httpGet:
+              path: /_ping
+              port: {{ .Values.service.internalPort }}
+          readinessProbe:
+            httpGet:
+              path: /_ping
+              port: {{ .Values.service.internalPort }}
+          volumeMounts:
+            - mountPath: /etc/nginx/nginx.conf
+              name: config
+              subPath: nginx.conf
+          resources:
+{{ toYaml .Values.resources | indent 12 }}
+      volumes:
+        - name: config
+          configMap:
+            name: {{ template "nginx-ldapauth-proxy.fullname" . }}
+    {{- if .Values.nodeSelector }}
+      nodeSelector:
+{{ toYaml .Values.nodeSelector | indent 8 }}
+    {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+{{ toYaml . | indent 8 }}
+    {{- end }}
diff --git a/stable/nginx-ldapauth-proxy/templates/ingress.yaml b/stable/nginx-ldapauth-proxy/templates/ingress.yaml
@@ -0,0 +1,32 @@
+{{- if .Values.ingress.enabled -}}
+{{- $serviceName := include "nginx-ldapauth-proxy.fullname" . -}}
+{{- $servicePort := .Values.service.externalPort -}}
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: {{ template "nginx-ldapauth-proxy.fullname" . }}
+  labels:
+    app: {{ template "nginx-ldapauth-proxy.name" . }}
+    chart: {{ template "nginx-ldapauth-proxy.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+  annotations:
+    {{- range $key, $value := .Values.ingress.annotations }}
+      {{ $key }}: {{ $value | quote }}
+    {{- end }}
+spec:
+  rules:
+    {{- range $host := .Values.ingress.hosts }}
+    - host: {{ $host }}
+      http:
+        paths:
+          - path: /
+            backend:
+              serviceName: {{ $serviceName }}
+              servicePort: {{ $servicePort }}
+    {{- end -}}
+  {{- if .Values.ingress.tls }}
+  tls:
+{{ toYaml .Values.ingress.tls | indent 4 }}
+  {{- end -}}
+{{- end -}}
diff --git a/stable/nginx-ldapauth-proxy/templates/secrets.yaml b/stable/nginx-ldapauth-proxy/templates/secrets.yaml
@@ -0,0 +1,14 @@
+{{- if .Values.secrets.ldapBindPassword }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ template "nginx-ldapauth-proxy.fullname" . }}
+  labels:
+    app: {{ template "nginx-ldapauth-proxy.name" . }}
+    chart: {{ template "nginx-ldapauth-proxy.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+type: Opaque
+data:
+  ldapBindPassword: {{ .Values.secrets.ldapBindPassword | b64enc | quote }}
+{{- end }}
diff --git a/stable/nginx-ldapauth-proxy/templates/service.yaml b/stable/nginx-ldapauth-proxy/templates/service.yaml
@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "nginx-ldapauth-proxy.fullname" . }}
+  labels:
+    app: {{ template "nginx-ldapauth-proxy.name" . }}
+    chart: {{ template "nginx-ldapauth-proxy.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.externalPort }}
+      targetPort: {{ .Values.service.internalPort }}
+      protocol: TCP
+      name: {{ .Values.service.name }}
+  selector:
+    app: {{ template "nginx-ldapauth-proxy.name" . }}
+    release: {{ .Release.Name }}
diff --git a/stable/nginx-ldapauth-proxy/values.yaml b/stable/nginx-ldapauth-proxy/values.yaml
@@ -0,0 +1,61 @@
+# Default values for nginx-ldapauth-proxy.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+replicaCount: 1
+image:
+  repository: dweomer/nginx-auth-ldap
+  tag: 1.13.5-on-alpine-3.5
+  pullPolicy: IfNotPresent
+  # pullSecrets:
+   # - docker-secret
+service:
+  name: nginx-ldapauth
+  type: ClusterIP
+  externalPort: 443
+  internalPort: 80
+proxy:
+  port: 443
+  host: "kubernetes.default.svc.cluster.local"
+  authName: "Auth Required"
+  ldapHost: ""
+  ldapPort: 389
+  ldapGroup: "memberUid"
+  ldapDN: "dc=example,dc=com"
+  ldapFilter: "objectClass=organizationalPerson"
+  ldapBindDN: "cn=auth,dc=example,dc=com"
+  requires:
+    - name: "authGroup"
+      filter: "cn=secret,ou=groups,dc=example,dc=com"
+secrets:
+  ldapBindPassword: ""
+
+ingress:
+  enabled: false
+  # Used to create an Ingress record.
+  hosts:
+    - ldapauth-service.local
+  annotations:
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  tls:
+    # Secrets must be manually created in the namespace.
+    # - secretName: chart-example-tls
+    #   hosts:
+    #     - chart-example.local
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #  cpu: 100m
+  #  memory: 128Mi
+  # requests:
+  #  cpu: 100m
+  #  memory: 128Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}