云原生之旅 - 14)遵循 GitOps 实践的好工具 ArgoCD
作者:互联网
前言
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。
本文使用 ArgoCD + Kustomize 实现自动化部署Kubernetes工作流。
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
1 | brew install argocd |
访问 Argo CD
Option 1: Service Type Load Balancer
You can change Service Type to Load Balancerkubectl patch svc argocd-server -n argocd -p '{"spec": {"type": "LoadBalancer"}}' |
Option 2: (Recommend) 使用 Gatewa
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>
更改密码
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。
更多
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