[kubernetes series] installation and use of Helm

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One 、Helm brief introduction

Helm yes Kubernetes Package manager , By packaging , Support release version management and control , A lot of simplification Kubernetes Application deployment and management . It involves three core concepts ：Chart、Repository（ Warehouse ）、Release.

1.Chart

It's a Helm package . Included in Kubernetes Running applications inside the cluster , All resource definitions required for a tool or service .

2.Repository（ Warehouse ）

Used to store and share Charts The place of .

3.Release

Running on the Kubernetes In the cluster Chart Example .

Two 、Helm install

Helm The latest version is Helm3, And Helm2 comparison ,Helm3 There's only one client , There is no server , A lot of simplification .

1. download

Download address ：https://github.com/helm/helm/releases

wget https://get.helm.sh/helm-v3.9.0-linux-amd64.tar.gz

2. decompression

tar xzvf helm-v3.9.0-linux-amd64.tar.gz

3. take helm Moved to /usr/local/bin

mv linux-amd64/helm /usr/local/bin/

3、 ... and 、Helm Common operations

1. from Artifact Hub Search for Charts

helm search hub

2. Find... From local warehouse Charts

helm search repo

3. install

helm install stable/mysql

4. see Charts

helm list

5. Add warehouse

helm repo add

6. Look at the warehouse

helm repo list