add charts (#54)

Co-authored-by: Zhang, Chaoyue (Jack) <[email protected]>

.github/workflows/release-chart.yml

@@ -0,0 +1,31 @@
+name: Release Charts
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - charts/**
+
+jobs:
+  release:
+    # depending on default permission settings for your org (contents being read-only or read-write for workloads), you will have to add permissions
+    # see: https://docs.github.com/en/actions/security-guides/automatic-token-authentication#modifying-the-permissions-for-the-github_token
+    permissions:
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+
+      - name: Run chart-releaser
+        uses: helm/[email protected]
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

README.md

@@ -24,6 +24,10 @@ resources:
   - https://github.com/resmoio/kubernetes-event-exporter?ref=master
 ```
 
+### Helm
+
+See [Helm Guide](./charts/kubernetes-event-exporter/README.md).
+
 ## Configuration
 
 Configuration is done via a YAML file, when run in Kubernetes, ConfigMap. The tool watches all the events and

charts/kubernetes-event-exporter/.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/

charts/kubernetes-event-exporter/Chart.yaml

@@ -0,0 +1,16 @@
+apiVersion: v2
+name: kubernetes-event-exporter
+description: Export Kubernetes events to multiple destinations with routing and filtering
+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
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"
+home: https://github.com/resmoio/kubernetes-event-exporter

charts/kubernetes-event-exporter/README.md

@@ -0,0 +1,43 @@
+# kubernetes-event-exporter Helm Chart
+
+## Get Repository Info
+
+```shell
+helm repo add kubernetes-event-exporter https://resmoio.github.io/kubernetes-event-exporter
+helm update
+```
+
+## Prepare the Deployment configuration [Optional]
+
+Create a helm values file.
+
+```yaml
+# config.yaml
+---
+config: |
+  logLevel: error
+  logFormat: json
+  route:
+    routes:
+      - match:
+          - receiver: "dump"
+  receivers:
+    - name: "dump"
+      stdout: {}
+```
+
+See [App Configuration](../../README.md) for reference.
+
+## Install Chart
+
+Ensure `monitoring` namespace exists
+
+```shell
+kubectl create ns monitoring
+```
+
+Install chart
+
+```bash
+helm install kubernetes-event-exporter -f config.yaml resmoio/kubernetes-event-exporter
+```

charts/kubernetes-event-exporter/templates/NOTES.txt

@@ -0,0 +1,22 @@
+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "kubernetes-event-exporter.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "kubernetes-event-exporter.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "kubernetes-event-exporter.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 "kubernetes-event-exporter.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
+{{- end }}

charts/kubernetes-event-exporter/templates/_helpers.tpl

@@ -0,0 +1,73 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "kubernetes-event-exporter.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 "kubernetes-event-exporter.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 "kubernetes-event-exporter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "kubernetes-event-exporter.labels" -}}
+helm.sh/chart: {{ include "kubernetes-event-exporter.chart" . }}
+{{ include "kubernetes-event-exporter.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "kubernetes-event-exporter.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "kubernetes-event-exporter.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "kubernetes-event-exporter.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "kubernetes-event-exporter.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Allow the release namespace to be overridden for multi-namespace deployments in combined charts
+*/}}
+{{- define "kubernetes-event-exporter.namespace" -}}
+  {{- if .Values.namespaceOverride -}}
+    {{- .Values.namespaceOverride -}}
+  {{- else -}}
+    {{- .Release.Namespace -}}
+  {{- end -}}
+{{- end -}}

charts/kubernetes-event-exporter/templates/configmap.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "kubernetes-event-exporter.fullname" . }}-cfg
+  namespace: {{ template "kubernetes-event-exporter.namespace" . }}
+data:
+  config.yaml: |
+{{ .Values.config | indent 4 }}

charts/kubernetes-event-exporter/templates/deployment.yaml

@@ -0,0 +1,67 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "kubernetes-event-exporter.fullname" . }}
+  namespace: {{ include "kubernetes-event-exporter.namespace" . }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "kubernetes-event-exporter.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "kubernetes-event-exporter.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "kubernetes-event-exporter.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: metrics
+              containerPort: {{ .Values.service.port }}
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /metrics
+              port: metrics
+          readinessProbe:
+            httpGet:
+              path: /metrics
+              port: metrics
+          args:
+            - -conf=/data/config.yaml
+          volumeMounts:
+            - mountPath: /data
+              name: cfg
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- 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: cfg
+          configMap:
+            name: {{ include "kubernetes-event-exporter.fullname" . }}-cfg

charts/kubernetes-event-exporter/templates/role.yaml

@@ -0,0 +1,11 @@
+{{- if .Values.rbac.create }}
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ include "kubernetes-event-exporter.fullname" . }}
+rules:
+  - apiGroups: ["*"]
+    resources: ["*"]
+    verbs: ["get", "watch", "list"]
+{{- end -}}

charts/kubernetes-event-exporter/templates/rolebinding.yaml

@@ -0,0 +1,15 @@
+{{- if .Values.rbac.create }}
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+    name: {{ include "kubernetes-event-exporter.fullname" . }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ include "kubernetes-event-exporter.fullname" . }}
+subjects:
+  - kind: ServiceAccount
+    namespace: {{ include "kubernetes-event-exporter.namespace" . }}
+    name: {{ include "kubernetes-event-exporter.fullname" . }}
+{{- end }}

charts/kubernetes-event-exporter/templates/serviceaccount.yaml

@@ -0,0 +1,7 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "kubernetes-event-exporter.serviceAccountName" . }}
+  namespace: {{ include "kubernetes-event-exporter.namespace" . }}
+{{- end }}