helm-charts

zifter’s helm charts

Add helm repository

helm repo add zifter https://github.com/zifter/helm-charts

List of charts in this repository

• agones-dashboards
• domain-exporter
• kafka-exporter
• clickhouse-exporter
• zookeeper-exporter
• rq-exporter
• tls-secret

List of usefull charts in other repository

• prometheus-node-exporter - export metrics from node. Will be installed by default in prometheus stack. Also allows to you scrape metrics from nodes out of kubernetes.

Contributing

Preparation

Install kind

kind is a tool for running local Kubernetes clusters using Docker container “nodes”. kind was primarily designed for testing Kubernetes itself, but may be used for local development or CI.

sudo wget "https://github.com/kubernetes-sigs/kind/releases/download/v0.11.1/kind-linux-amd64" -O /usr/bin/kind && sudo chmod +x /usr/bin/kind

Install helm

helm is a tool for managing Charts. Charts are packages of pre-configured Kubernetes resources.

curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 && chmod 700 get_helm.sh && ./get_helm.sh --version v3.4.2 && rm -f ./get_helm.sh

Install helm plugin diff

[helm diff plugin] giving your a preview of what a helm upgrade would change.

helm plugin install https://github.com/databus23/helm-diff --version 3.1.3

Install helmfile

Helmfile is a declarative spec for deploying helm charts.

sudo wget "https://github.com/roboll/helmfile/releases/download/v0.140.0/helmfile_linux_amd64" -O /usr/bin/helmfile && sudo chmod +x /usr/bin/helmfile

Install shcema-gen plugin

Install https://github.com/karuppiah7890/helm-schema-gen special plugin to generate schema

helm plugin install https://github.com/karuppiah7890/helm-schema-gen.git

Install helm-unittest

Install https://github.com/quintush/helm-unittest special plugin to test helm

helm plugin install https://github.com/quintush/helm-unittest

Launching test cluster with all dependencies

./dev/cluster/run.sh

New Helm Chart Guide

• New chart in charts folder
• Add charts/*/tests/values-full,yaml
• Add to Dev Cluster installing this chart
• Add to README.md

Testing helm charts

Install ct

Run linting of all helm charts

ct lint

Generate values.schema.json

Run generation in particular chart folder

./dev/gen-values-schema.sh