Argo CD 服务端安装

安装参考：https://argoproj.github.io/argo-cd/getting_started
官方demo：https://cd.apps.argoproj.io/applications

kubectl create namespace argocd
kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml

查看部署的资源

kubectl -n argocd get pods

Argo的访问方式-LoadBalancer

修改serivce类型为nodeport，以访问Argo CD API Server

kubectl patch svc argocd-server -n argocd -p '{"spec": {"type": "LoadBalancer"}}'  
 #LoadBalancer、NodePort均可以实现

查看service

kubectl -n argocd get svc

Argo的访问方式-基于ingress部署

cat argocd-ingress-http.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
 name: argocd-server-ingress
 namespace: argocd
 annotations:
 cert-manager.io/cluster-issuer: letsencrypt-prod
 kubernetes.io/ingress.class: nginx
 kubernetes.io/tls-acme: "true"
 nginx.ingress.kubernetes.io/ssl-passthrough: "true"
 # If you encounter a redirect loop or are getting a 307 response code
 # then you need to force the nginx ingress to connect to the backend using HTTPS.
 #
 nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
spec:
 rules:
 - host: argocd.kktd.com
 http:
 paths:
 - path: /
 pathType: Prefix
 backend:
 service:
 name: argocd-server
 port:
 name: https
 tls:
 - hosts:
 - argocd.kktd.com
 secretName: argocd-secret # do not change, this is provided by Argo CD

Argo CD 客户端安装

要与API Server进行交互，我们需要部署CLI：

linux命令行

wget https://github.com/argoproj/argo-cd/releases/download/v2.1.2/argocd-linux-amd64
cp argocd-linux-amd64 /usr/local/bin/argocd 
chmod +x /usr/local/bin/argocd

MAC版

brew install argocd

查看argocdCLI版本

argocd version
获取pod名称
```bash
podName=`kubectl get pods -n argocd -l app.kubernetes.io/name=argocd-server -o name | cut -d'/' -f 2`

将服务注册到k8s集群

argocd login argocd.kktd.com --username admin --password $podName

修改默认密码

argocd account update-password \
  --current-password ******** \
  --new-password Argocd@123

浏览器访问argocd

https://argocd.kktd.com

helm部署argocd

参考：

https://artifacthub.io/packages/helm/argo/argo-cd
https://github.com/argoproj/argo-helm/tree/master/charts/argo-cd

添加helm仓库

helm repo add argo https://argoproj.github.io/argo-helm

部署argocd

helm install argocd \
  --namespace=argocd --create-namespace \
  --set global.image.repository="argoproj/argocd" \
  --set dex.image.repository="dexidp/dex" \
  --set server.service.type=NodePort \
  --set server.service.nodePortHttp=30085 \
  argo/argo-cd

获取admin用户密码

 kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d

多集群管理

多集群管理是通过argo对连接不同的k8s集群，然后实现对各个集群上服务的管理。

获取到目标集群的config配置信息

根据config配置信息，获取到目标集群的上下文信息

kubectl config get-contexts

CURRENT NAME CLUSTER AUTHINFO NAMESPACE
* 214593738340050306-c74b6dca73229419a818c93f841132449 kubernetes 214593738340050306   #关键信息：NAME和CLUSTER

客户端添加集群

argocd cluster add 214593738340050306-c74b6dca73229419a818c93f841132449 --kubeconfig ~/.kube/config --name test-env

界面查看

首次查看，会显示不成功，但是不影响界面部署