Argo CD
2022-07-29 本文已影响0人
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ArgoCD.png
Argo CD简介
Argo CD是一款基于 kubernetes 的声明式的Gitops 持续部署工具。
- 应用程序定义、配置和环境都是声明式的，并受版本控制
- 应用程序部署和生命周期管理都是自动化的、可审计的，并且易于理解。
架构
architecture.png
在 Kubernetes 集群中部署 Argo CD
安装 OLM 组件
[root@localhost ~]# curl -L https://github.com/operator-framework/operator-lifecycle-manager/releases/download/v0.21.2/install.sh -o install.sh
[root@localhost ~]# chmod +x install.sh
[root@localhost ~]# ./install.sh v0.21.2
# 验证安装结果，安装成功后，会创建olm和operators两个命名空间
[root@localhost ~]# kubectl get ns
NAME STATUS AGE
default Active 49d
jenkins Active 49d
kube-node-lease Active 49d
kube-public Active 49d
kube-system Active 49d
kubekey-system Active 49d
olm Active 6h16m
operators Active 6h16m
# 验证OLM命名空间中Pods
[root@localhost ~]#kubectl get pods -n olm
NAME READY STATUS RESTARTS AGE
olm-operator-5b58594fc8-bzpq2 1/1 Running 0 2m10s
catalog-operator-6d578c5764-l5f5t 1/1 Running 0 2m10s
packageserver-7495fbf449-w4w6h 1/1 Running 0 80s
packageserver-7495fbf449-9jmpj 1/1 Running 0 80s
operatorhubio-catalog-pnsc7 1/1 Running 0 81s
安装 Argo CD Operator
1、为operator创建命名空间
[root@localhost yaml]# kubectl create namespace argocd
namespace/argocd created
2、Operator Catalog
[root@localhost yaml]# kubectl create -n olm -f deploy/catalog_source.yaml
catalogsource.operators.coreos.com/argocd-catalog created
[root@localhost yaml]# kubectl get catalogsources -n olm
NAME DISPLAY TYPE PUBLISHER AGE
argocd-catalog Argo CD Operators grpc Argo CD Community 8s
operatorhubio-catalog Community Operators grpc OperatorHub.io 6h39m
[root@localhost yaml]# kubectl get pods -n olm -l olm.catalogSource=argocd-catalog
NAME READY STATUS RESTARTS AGE
argocd-catalog-876rg 1/1 Running 0 17s
3、Operator Group
[root@localhost yaml]# kubectl create -n argocd -f deploy/operator_group.yaml
operatorgroup.operators.coreos.com/argocd-operator created
[root@localhost yaml]# kubectl get operatorgroups -n argocd
NAME AGE
argocd-operator 12s
4、Subscription
[root@localhost yaml]# kubectl create -n argocd -f deploy/subscription.yaml
subscription.operators.coreos.com/argocd-operator created
[root@localhost yaml]# kubectl get subscriptions -n argocd
NAME PACKAGE SOURCE CHANNEL
argocd-operator argocd-operator argocd-catalog alpha
[root@localhost yaml]# kubectl get installplans -n argocd
NAME CSV APPROVAL APPROVED
install-r7lwx argocd-operator.v0.3.0 Automatic true
[root@localhost yaml]# kubectl get pods -n operators
NAME READY STATUS RESTARTS AGE
argocd-operator-controller-manager-65b8f9468b-t6hqw 2/2 Running 5 7h48m
安装Argo CD实例
[root@localhost yaml]# kubectl create -n argocd -f examples/argocd-basic.yaml
[root@localhost yaml]# kubectl get cm,secret,deploy -n argocd
NAME DATA AGE
configmap/argocd-cm 16 7h2m
configmap/argocd-gpg-keys-cm 0 7h2m
configmap/argocd-operator-manager-config 1 7h36m
configmap/argocd-rbac-cm 3 7h2m
configmap/argocd-ssh-known-hosts-cm 1 7h2m
configmap/argocd-tls-certs-cm 0 7h2m
configmap/example-argocd-ca 1 7h2m
configmap/kube-root-ca.crt 1 20h
NAME TYPE DATA AGE
secret/argocd-operator-controller-manager-token-4q2ff kubernetes.io/service-account-token 3 7h36m
secret/argocd-secret Opaque 5 7h2m
secret/default-token-jbw82 kubernetes.io/service-account-token 3 20h
secret/example-argocd-argocd-application-controller-token-4m9vk kubernetes.io/service-account-token 3 7h2m
secret/example-argocd-argocd-dex-server-token-sw64k kubernetes.io/service-account-token 3 7h2m
secret/example-argocd-argocd-redis-ha-token-tn6vv kubernetes.io/service-account-token 3 7h2m
secret/example-argocd-argocd-server-token-twjg2 kubernetes.io/service-account-token 3 7h2m
secret/example-argocd-ca kubernetes.io/tls 3 7h2m
secret/example-argocd-cluster Opaque 1 7h2m
secret/example-argocd-default-cluster-config Opaque 4 7h2m
secret/example-argocd-tls kubernetes.io/tls 2 7h2m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/example-argocd-dex-server 1/1 1 1 7h2m
deployment.apps/example-argocd-redis 1/1 1 1 7h2m
deployment.apps/example-argocd-repo-server 1/1 1 1 7h2m
deployment.apps/example-argocd-server 1/1 1 1 7h2m
[root@localhost yaml]# kubectl get svc -n argocd
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
argocd-operator-controller-manager-metrics-service ClusterIP 10.233.2.132 <none> 8443/TCP 7h36m
example-argocd-dex-server ClusterIP 10.233.35.172 <none> 5556/TCP,5557/TCP 7h3m
example-argocd-metrics ClusterIP 10.233.16.0 <none> 8082/TCP 7h3m
example-argocd-redis ClusterIP 10.233.28.175 <none> 6379/TCP 7h3m
example-argocd-repo-server ClusterIP 10.233.58.219 <none> 8081/TCP,8084/TCP 7h3m
example-argocd-server NodePort 10.233.40.116 <none> 80:30080/TCP,443:30443/TCP 7h3m
example-argocd-server-metrics ClusterIP 10.233.53.110 <none> 8083/TCP 7h3m
获取登录密码
kubectl -n argocd get secret example-argocd-cluster -o jsonpath='{.data.admin\.password}' | base64 -d
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