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云原生之旅 - 14）遵循 GitOps 实践的好工具 ArgoCD - WadeXu

 1 year ago
source link: https://www.cnblogs.com/wade-xu/p/16863924.html
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Argo CD 是一款基于 kubernetes 的声明式的Gitops 持续部署工具。
  1. 应用程序定义、配置和环境都是声明式的，并受版本控制
  2. 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。

本文使用 ArgoCD + Kustomize 实现自动化部署Kubernetes工作流。

## 本文同步发表于知乎 https://zhuanlan.zhihu.com/p/584881969

安装 Argo CD

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

命令行工具 Argo CD CLI

MacOS 安装
brew install argocd

访问 Argo CD

Option 1: Service Type Load Balancer

You can change Service Type to Load Balancer 
kubectl patch svc argocd-server -n argocd -p '{"spec": {"type": "LoadBalancer"}}'

Option 2: (Recommend) 使用 Gateway

Option 3: 端口转发

运行下面命令然后本地浏览器访问 `https://localhost:8080`
kubectl port-forward svc/argocd-server -n argocd 8080:443
The initial password for the admin account is auto-generated and stored as clear text in the field password in a secret named argocd-initial-admin-secret in your Argo CD installation namespace. You can simply retrieve this password using kubectl
kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d; echo

域名取决于你在gateway里面的配置，Login now

argocd login https://argocd.wadexu.cloud

如果是端口转发，参考如下命令

kubectl port-forward svc/argocd-server -n argocd 8080:443
argocd login https://localhost:8080 --username admin --password <repalce_me> 
argocd account update-password

注册 external Cluster

(Optional) 这一步是为了deploy到到外部的cluster，如果仅仅deploy到和Argo CD一起的cluster 则使用 https://kubernetes.default.svc
# list context
kubectx

argocd cluster add xxx_context

创建 Application

Creating Apps Via CLI

kubectl config set-context --current --namespace=argocd

argocd app create my-app --repo https://github.com/wadexu007/learning_by_doing.git --path Kustomize/demo-manifests/services/demo-app/dev --dest-server https://kubernetes.default.svc --dest-namespace demo

Sync (Deploy) Application

Syncing via CLI

argocd app get my-app
argocd app sync my-app

通过UI 创建和Sync Application 也非常简单。详见官方文档。

## 本文同步发表于知乎 https://zhuanlan.zhihu.com/p/584881969

Argo CD supports several different ways in which Kubernetes manifests can be defined:
  • Kustomize applications (我的例子）
  • Helm charts
  • A directory of YAML/JSON/Jsonnet manifests, including Jsonnet.
  • Any custom config management tool configured as a config management plugin
感谢阅读，如果您觉得本文的内容对您的学习有所帮助，您可以打赏和推荐，您的鼓励是我创作的动力。

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