feat: add helm chart

.github/workflows/helm-publish.yaml

@@ -0,0 +1,33 @@
+name: Helm Publish
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  helm_publish:
+    # 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 "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+
+      - name: Install Helm
+        uses: azure/setup-helm@v4
+        env:
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+
+      - name: Run chart-releaser
+        uses: helm/[email protected]
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/helm-test.yaml

@@ -0,0 +1,74 @@
+name: Helm Test
+on:
+  pull_request:
+jobs:
+  helm_test:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout Code
+      uses: actions/checkout@v2
+
+    - name: Install Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.22
+
+    - name: Install Tools
+      shell: bash
+      id: tool-versions
+      env:
+        TILT_TOOL_CTLPTL_VERSION: "0.8.28"
+        TILT_TOOL_KIND_VERSION: "0.23.0"
+        TILT_TOOL_KUBECTL_VERSION: "1.30.0"
+        TILT_TOOL_HELM_VERSION: "3.14.4"
+        TILT_TOOL_TILT_VERSION: "0.33.13"
+      run: |
+
+        # Create Tools Directory
+        TOOLS_DIR=/opt/helm_tools
+        mkdir -p "${TOOLS_DIR}"
+
+        # Download ctlptl
+        echo "Downloading ctlptl"
+        curl -fsSL https://github.com/tilt-dev/ctlptl/releases/download/v${TILT_TOOL_CTLPTL_VERSION}/ctlptl.${TILT_TOOL_CTLPTL_VERSION}.linux.x86_64.tar.gz | sudo tar -xzv -C "${TOOLS_DIR}" ctlptl
+
+        # Download kind
+        echo "Downloading kind"
+        curl -fsSL https://kind.sigs.k8s.io/dl/v${TILT_TOOL_KIND_VERSION}/kind-linux-amd64 -o "${TOOLS_DIR}/kind"
+
+        # Download kubectl
+        echo "Downloading kubectl"
+        curl -fsSL https://dl.k8s.io/release/v${TILT_TOOL_KUBECTL_VERSION}/bin/linux/amd64/kubectl -o "${TOOLS_DIR}/kubectl"
+
+        # Download helm
+        echo "Downloading helm"
+        curl -fsSL https://get.helm.sh/helm-v${TILT_TOOL_HELM_VERSION}-linux-amd64.tar.gz | tar -xzv -C "${TOOLS_DIR}" --strip-components=1 linux-amd64/helm
+
+        # Download tilt
+        echo "Downloading tilt"
+        curl -fsSL https://github.com/tilt-dev/tilt/releases/download/v${TILT_TOOL_TILT_VERSION}/tilt.${TILT_TOOL_TILT_VERSION}.linux.x86_64.tar.gz | tar -xzv -C "${TOOLS_DIR}" tilt
+
+        # Make the binaries runnable
+        echo "Making binaries executable"
+        sudo chmod -R +x "${TOOLS_DIR}"
+
+        # Add tools to path
+        echo "PATH=${PATH}:${TOOLS_DIR}" >> $GITHUB_ENV
+
+    - name: Start Kind Cluster
+      shell: bash
+      run: |
+        ctlptl apply -f kind.yaml
+
+    - name: Run Tilt Tests
+      shell: bash
+      run: |
+        tilt ci --debug --output-snapshot-on-exit=/tmp/tilt-snapshot.json
+
+    - name: Upload Tilt Snapshot
+      if: success() || failure()
+      uses: actions/upload-artifact@v3
+      with:
+        name: tilt-snapshot
+        path: |
+          /tmp/tilt-snapshot.json

README.md

@@ -101,14 +101,25 @@ docker push $(namespace="docker.io/myhandle/" make version)
 ```
 
 ## Installation
-
 `Goldpinger` works by asking `Kubernetes` for pods with particular labels (`app=goldpinger`). While you can deploy `Goldpinger` in a variety of ways, it works very nicely as a `DaemonSet` out of the box.
 
-### Authentication with Kubernetes API
+### Helm Installation
+Goldpinger can be installed via [Helm](https://helm.sh/) using the following:
+
+```
+helm repo add goldpinger https://bloomberg.github.io/goldpinger
+helm repo update
+helm install goldpinger goldpinger/goldpinger
+```
+
+### Manual Installation
+`Goldpinger` can be installed manually via configuration similar to the following:
+
+#### Authentication with Kubernetes API
 
 `Goldpinger` supports using a `kubeconfig` (specify with `--kubeconfig-path`) or service accounts.
 
-### Example YAML
+#### Example YAML
 
 Here's an example of what you can do (using the in-cluster authentication to `Kubernetes` apiserver).
 

Tiltfile

@@ -0,0 +1,30 @@
+# -*- mode: bazel-starlark -*-
+
+# Build the image
+docker_build('goldpinger-local', '.')
+
+# Deploy with Helm
+k8s_yaml(
+  helm(
+    'charts/goldpinger',
+    set = [
+      # Set the image to the one built by Tilt
+      'image.repository=goldpinger-local',
+    ],
+  )
+)
+
+# Track Goldpinger Resource
+k8s_resource(
+  'chart-goldpinger',
+  port_forwards = [8080],
+)
+
+# Validate that all 2 nodes can talk to eachother
+local_resource(
+  'check_reachability',
+  cmd='./extras/check_reachability.sh 2',
+  resource_deps = [
+    'chart-goldpinger',
+  ],
+)

charts/goldpinger/.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
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+
+OWNERS

charts/goldpinger/Chart.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+name: goldpinger
+appVersion: "3.10.1"
+version: 1.0.0
+description: Goldpinger is a tool to help debug, troublshoot and visualize network connectivity and slowness issues.
+home: https://github.com/bloomberg/goldpinger
+sources:
+  - https://github.com/bloomberg/goldpinger

charts/goldpinger/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "goldpinger.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 "goldpinger.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 "goldpinger.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "goldpinger.labels" -}}
+helm.sh/chart: {{ include "goldpinger.chart" . }}
+{{ include "goldpinger.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "goldpinger.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "goldpinger.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "goldpinger.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "goldpinger.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

charts/goldpinger/templates/clusterrole.yaml

@@ -0,0 +1,12 @@
+{{- if and .Values.rbac.create .Values.rbac.clusterscoped }}
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: {{ include "goldpinger.fullname" . }}-clusterrole
+  labels:
+    {{- include "goldpinger.labels" . | nindent 4 }}
+rules:
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs: ["list"]
+{{- end }}

charts/goldpinger/templates/clusterrolebinding.yaml

@@ -0,0 +1,16 @@
+{{- if and .Values.rbac.create .Values.rbac.clusterscoped }}
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: {{ include "goldpinger.fullname" . }}-clusterrolebinding
+  labels:
+    {{- include "goldpinger.labels" . | nindent 4 }}
+subjects:
+  - kind: ServiceAccount
+    name: {{ include "goldpinger.serviceAccountName" . }}
+    namespace: {{ .Release.Namespace }}
+roleRef:
+  kind: ClusterRole
+  name: {{ include "goldpinger.fullname" . }}-clusterrole
+  apiGroup: rbac.authorization.k8s.io
+{{- end }}

charts/goldpinger/templates/configmap.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "goldpinger.fullname" . }}-zap
+  labels:
+    {{- include "goldpinger.labels" . | nindent 4 }}
+data:
+  zap.json: {{ .Values.goldpinger.zapConfig | toJson }}