[yahoon 原创] ArgoCD从内网的GitLab Repo部署应用

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ArgoCD从内网的GitLab Repo部署应用

本文将讲解中我的home lab（一个访问受限的环境中），使用ArgoCD 部署一个gitlab repo的全部过程

Home lab Env

在home lab中，有如下服务运行着

GitLab server:

http://192.168.1.4:8080/

K8s Cluster

我有一个3节点的k8s集群：一个maste，2个node

❯ kubectl cluster-info
Kubernetes control plane is running at https://192.168.1.101:6443
CoreDNS is running at https://192.168.1.101:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy

To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.

❯ kubectl get no
NAME          STATUS   ROLES           AGE   VERSION
k8s-master    Ready    control-plane   25d   v1.36.0
k8s-worker1   Ready    <none>          25d   v1.36.0
k8s-worker2   Ready    <none>          25d   v1.36.0

ArgoCD

ArgoCD 已经部署到K8S集群里面了

❯ argocd version
argocd: v3.4.3+1801122
  BuildDate: 2026-05-28T12:02:57Z
  GitCommit: 1801122b4391cad4961301f787006dc9a88c2dd3
  GitTreeState: clean
  GoVersion: go1.26.0
  Compiler: gc
  Platform: linux/amd64
argocd-server: v3.4.3

ArgoCD Web UI:
https://192.168.1.101:31157/

准备 repo

创建 GitLab repo

Git repo name: argocd-demo-gl

Repo GitLab URL http://192.168.1.4:8080/yahoon/argocd-demo-gl

Set the repo to public

Clone to local dir:

❯ git clone ssh://git@192.168.1.4:2222/yahoon/argocd-demo-gl.git
Cloning into 'argocd-demo-gl'...

填充git repo内容

目录结构如下

❯ tree .
.
├── container-image
│   └── argocd-demo
│       ├── Containerfile
│       ├── index.html
│       └── README.md
├── k8s-apps
│   └── argocd-demo
│       ├── deployment.yaml
│       └── service.yaml
└── README.md

内容说明

container-image：放image, 我用 argocd-demo-gl做名字
- 主要效果是http/80 显示html 内容 Hello, This is Yahoon's ArgoCD Demo from Local GitLab!
k8s-apps: 在k8s上部署的resource,主要是service argocd-demo-go

Git提交 & push

你可以访问所有代码在这个仓库: https://github.com/yahoon/argocd-demo-gl

准备 image repo

在Quay上创建 public repo: https://quay.io/repository/yahoon/argocd-demo-gl

准备image

我用 argocd-demo-gl做名字

❯ cd container-image/argocd-demo/
❯ podman build -t quay.io/yahoon/argocd-demo-gl:v1 .

本地测试image

❯ podman run --rm -d  -P quay.io/yahoon/argocd-demo-gl:v1

❯ podman ps
CONTAINER ID  IMAGE                             COMMAND               CREATED        STATUS        PORTS                  NAMES
226a6d5f6589  quay.io/yahoon/argocd-demo-gl:v1  nginx -g daemon o...  2 seconds ago  Up 2 seconds  0.0.0.0:44137->80/tcp  intelligent_banzai

❯ curl localhost:44137
Hello, This is Yahoon's ArgoCD Demof rom Local GitLab!

推送image

❯ podman login -u='yahoon' -p='yahoon-quay-password' quay.io
❯ podman push quay.io/yahoon/argocd-demo-gl:v1

在ArgoCD UI 上部署app

Create app

Login Argo UI: https://192.168.1.101:31157/

点击 + NEW APP，填写：

General 区

Application Name: argocd-demo-gl
Project: default
Sync Policy: Manual
Sync Options 区（点开折叠）
- 勾选 Auto-Create Namespace

Source 区

Repository URL: http://192.168.1.4:8080/yahoon/argocd-demo-gl.git
Revision: HEAD
Path: k8s-apps/argocd-demo

Destination 区

Cluster URL: 下拉选择 in-cluster (https://kubernetes.default.svc)
Namespace: argocd-ademo-gl

点击右上角 CREATE

Sync app

点开app页面，点sync, 等一会就成功了

在CLI下面查看:

❯ oc get app -n argocd
NAME             SYNC STATUS   HEALTH STATUS
argocd-demo-gl   Synced        Healthy

❯ oc get all -n argocd-demo-gl
NAME                               READY   STATUS    RESTARTS   AGE
pod/argocd-demo-79d888c774-4mwpx   1/1     Running   0          7s
pod/argocd-demo-79d888c774-6fshr   1/1     Running   0          7s

NAME                     TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)   AGE
service/argocd-demo-gl   ClusterIP   10.109.8.250   <none>        80/TCP    7s

NAME                          READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/argocd-demo   2/2     2            2           7s

NAME                                     DESIRED   CURRENT   READY   AGE
replicaset.apps/argocd-demo-79d888c774   2         2         2       7s

Test the app

❯ kubectl run curl-test -n argocd-demo-gl --rm -it --image=quay.io/curl/curl --restart=Never -- \                                                           
  curl http://argocd-demo-gl.argocd-demo-gl.svc.cluster.local 
// 应该返回 "Hello, This is Yahoon's ArgoCD Demo"。

端口转发

❯ kubectl port-forward -n argocd-demo-gl svc/argocd-demo-gl 8081:80

在web browser 里访问 http://localhost:8081/

总结

总体实现就是Argo直接从git repo来部署应用到k8s上，应用所有的更改都要通过git 来实现=》这也就是 GitOps的意义所在了！

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