JZTXT

Argo CD App Of Apps

发布时间 2023-08-16 17:22:44作者: evescn

Argo CD App of Apps

什么是 App of Apps

您可以创建一个应用程序来创建其他应用程序，而其他应用程序又可以创建其他应用程序。这允许您以声明方式管理一组可以协同部署和配置的应用程序。这就是 App of Apps

官方文档：https://argo-cd.readthedocs.io/en/stable/operator-manual/declarative-setup/#app-of-apps

创建 App of Apps

项目仓库：https://gitee.com/gmkk/argocd-example-apps/tree/main/app-of-apps

新建 rootapp.yaml 配置文件

## rootapp.yaml

apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: root-application
  namespace: argocd
spec:
  project: default
  source:
    repoURL: https://gitee.com/gmkk/argocd-example-apps.git
    targetRevision: main
    path: ./app-of-apps/apps
    # directory
    directory:
      recurse: false
  destination:
    server: https://kubernetes.default.svc
    namespace: default

  # syncPolicy:
  #   automated: # automated sync by default retries failed attempts 5 times with following delays between attempts ( 5s, 10s, 20s, 40s, 80s ); retry controlled using `retry` field.
  #     prune: true # Specifies if resources should be pruned during auto-syncing ( false by default ).
  #     selfHeal: true # Specifies if partial app sync should be executed when resources are changed only in target Kubernetes cluster and no git change detected ( false by default ).
  #     allowEmpty: false # Allows deleting all application resources during automatic syncing ( false by default ).

在代码仓库 https://gitee.com/gmkk/argocd-example-apps.git ./app-of-apps/apps 目录下，准备好我们需要创建的 APP 服务，详细如下：

  • APP1
## app1.yaml
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: app1
  namespace: argocd
spec:
  destination:
    namespace: directory-guestbook-1
    server: https://kubernetes.default.svc
  project: default
  source:
    path: guestbook
    repoURL: https://gitee.com/gmkk/argocd-example-apps.git
    targetRevision: main
    directory:
      recurse: true
  syncPolicy:
    syncOptions:
      - CreateNamespace=true
  • APP2
## app2.yaml
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: app2
  namespace: argocd
spec:
  destination:
    namespace: directory-guestbook-2
    server: https://kubernetes.default.svc
  project: default
  source:
    path: guestbook
    repoURL: https://gitee.com/gmkk/argocd-example-apps.git
    targetRevision: main
    directory:
      recurse: true
  syncPolicy:
    syncOptions:
      - CreateNamespace=true
  • APP3
## app3.yaml
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: app3
  namespace: argocd
spec:
  destination:
    namespace: directory-guestbook-3
    server: https://kubernetes.default.svc
  project: default
  source:
    path: guestbook
    repoURL: https://gitee.com/gmkk/argocd-example-apps.git
    targetRevision: main
    directory:
      recurse: true
  syncPolicy:
    syncOptions:
      - CreateNamespace=true

img

在 Argo CD 中创建 APP

[root@node argocd]# kubectl apply -f rootapp.yaml
application.argoproj.io/root-application created

web UI 界面查看：

img

点击 Sync 按钮同步，自动新建了 3 个 APP 服务

img

3 个 APP 服务分别点击 Sync 按钮进行同步

img

使用 kubectl 查看集群详细信息

## 查看 NameSpace
[root@node argocd]# kubectl get ns
NAME                    STATUS   AGE
argo-rollouts           Active   5d23h
argocd                  Active   12d
default                 Active   15d
dev                     Active   6d5h
devops                  Active   15d
directory-guestbook-1   Active   49s
directory-guestbook-2   Active   46s
directory-guestbook-3   Active   43s
kube-node-lease         Active   15d
kube-public             Active   15d
kube-system             Active   15d

## 查看 directory-guestbook-1 服务信息
[root@node argocd]# kubectl get all -n directory-guestbook-1 
NAME                                    READY   STATUS    RESTARTS   AGE
pod/guestbook-ui-56f57db4f-lpckf        1/1     Running   0          63s
pod/guestbook-ui-56f57db4f-r6cbz        1/1     Running   0          63s
pod/guestbook-ui-56f57db4f-wszq7        1/1     Running   0          63s
pod/guestbook-ui-new-54557b8c69-4v569   1/1     Running   0          63s
pod/guestbook-ui-new-54557b8c69-nr7xd   1/1     Running   0          63s
pod/guestbook-ui-new-54557b8c69-vt5h8   1/1     Running   0          63s

NAME                       TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE
service/guestbook-ui       ClusterIP   10.68.83.65     <none>        80/TCP    63s
service/guestbook-ui-new   ClusterIP   10.68.249.216   <none>        80/TCP    63s

NAME                               READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/guestbook-ui       3/3     3            3           63s
deployment.apps/guestbook-ui-new   3/3     3            3           63s

NAME                                          DESIRED   CURRENT   READY   AGE
replicaset.apps/guestbook-ui-56f57db4f        3         3         3       63s
replicaset.apps/guestbook-ui-new-54557b8c69   3         3         3       63s

## 查看 directory-guestbook-2 服务信息
[root@node argocd]# kubectl get all -n directory-guestbook-2
NAME                                    READY   STATUS    RESTARTS   AGE
pod/guestbook-ui-56f57db4f-96n2r        1/1     Running   0          64s
pod/guestbook-ui-56f57db4f-f25xk        1/1     Running   0          64s
pod/guestbook-ui-56f57db4f-lmmwn        1/1     Running   0          64s
pod/guestbook-ui-new-54557b8c69-d6q7j   1/1     Running   0          64s
pod/guestbook-ui-new-54557b8c69-gt4wk   1/1     Running   0          64s
pod/guestbook-ui-new-54557b8c69-v2jxf   1/1     Running   0          64s

NAME                       TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE
service/guestbook-ui       ClusterIP   10.68.242.246   <none>        80/TCP    64s
service/guestbook-ui-new   ClusterIP   10.68.135.130   <none>        80/TCP    64s

NAME                               READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/guestbook-ui       3/3     3            3           64s
deployment.apps/guestbook-ui-new   3/3     3            3           64s

NAME                                          DESIRED   CURRENT   READY   AGE
replicaset.apps/guestbook-ui-56f57db4f        3         3         3       64s
replicaset.apps/guestbook-ui-new-54557b8c69   3         3         3       64s