[School Of DevOps] Ultimate Argo Bootcamp: ArgoCD

Делаю:
2026.01.22

$ kubectl create ns staging
$ kubectl create ns prod

ARGOCD -> Settings -> Projects -> New Project

Project Name: instavote
Description: Example Voting App

DESTINATION:

Server: https://kubernetes.default.svc
Name: in-cluster
Namespace: staging

Server: https://kubernetes.default.svc
Name: in-cluster
Namespace: prod

GITHUB -> FORK -> https://github.com/devops-0006/argo-labs

Settings -> Repositories + CONNECT REPO

Choose your connection method: VIA HTTP/HTTPS
Type: git

Project: instavote
Repository URL: https://github.com/wildmakaka/argo-labs

Connect

Applications -> New App

Application Name: vote-staging
Project Name: instavote
Sync Policy: Automatic

+ Enable Auto-Sync
+ Prune Resources
+ Self Heal

SOURCE

Repository URL: https://github.com/wildmakaka/argo-labs
Revision: main
Path: staging

DESTINATION

Cluster URL: https://kubernetes.default.svc
Namespace: staging

CREATE

$ kubectl get pods -n staging
NAME                   READY   STATUS    RESTARTS   AGE
vote-c74765f9c-n7mpr   1/1     Running   0          71s
vote-c74765f9c-w8s2w   1/1     Running   0          71s
vote-c74765f9c-zpw4r   1/1     Running   0          71s
vote-c74765f9c-zvj5x   1/1     Running   0          71s

$ kubectl get applications -A
NAMESPACE   NAME           SYNC STATUS   HEALTH STATUS
argocd      vote-staging   Synced        Healthy

07. Configuring GitOps Workflow with Branching Models and Pull Requests

Деплоим на production.

Создаю branch: release

Настроили обязательный merge-request для branch release

GitHub -> argo-labs -> Settings -> Branches -> Add branch ruleset

Ruleset Name: Prod Deployment
Enforcement status: Active

Target branches

Add target -> Include by pattern -> Branch naming pattern -> release

Rules -> + Require a pull request before merging

Create

08. Defining ArgoCD Applications Spec for Prod Sync with YAML

$ cat << EOF | kubectl apply -f -
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: vote-prod
  namespace: argocd
spec:
  destination:
    namespace: prod
    server: https://kubernetes.default.svc
  project: instavote
  source:
    path: prod
    repoURL: https://github.com/wildmakaka/argo-labs
    targetRevision: release
  syncPolicy:
    automated:
      enabled: true
      prune: true
      selfHeal: true
EOF

$ kubectl get applications -A
NAMESPACE   NAME           SYNC STATUS   HEALTH STATUS
argocd      vote-prod      Synced        Healthy
argocd      vote-staging   Synced        Healthy

$ kubectl get svc -n staging
NAME           TYPE       CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE
vote           NodePort   10.96.107.255   <none>        80:30000/TCP   153m
vote-preview   NodePort   10.96.179.159   <none>        80:30100/TCP   153m

$ kubectl get svc -n prod
NAME           TYPE       CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE
vote           NodePort   10.96.226.145   <none>        80:30200/TCP   4m17s
vote-preview   NodePort   10.96.120.76    <none>        80:30300/TCP   4m17s

$ kubectl argo rollouts dashboard -p 3100

http://localhost:3100/rollouts/rollout/prod/vote

$ kubectl port-forward svc/vote 30200:80
$ kubectl port-forward svc/vote-preview 30300:80

http://localhost:30200/
http://localhost:30300/