打算把個人博客部署在k8s上面，記錄下過程。

博客是由vuepress搭建的，本質是個nodejs項目，托管在了github 執行npm run build後會生成靜態資源

1. 首先項目根目錄添加Dockerfile和.dockerignore

Dockerfile

# build stage
FROM node:lts-alpine as build-stage
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build
# production stage
FROM nginx:stable-alpine as production-stage
COPY --from=build-stage /app/docs/.vuepress/dist /usr/share/nginx/html
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]
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.dockerignore

node_modules
.git
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2. 打包docker鏡像並推到docker hub倉庫

docker build . --file Dockerfile -t finleyma/blog-vuepres
docker push
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打開 hub.docker.com/r/finleyma/… 成功啦

3. 項目根目錄創建kubernates.yaml

注意：我們已經提前在google cloud上建立好了包含3個工作節點的k8s集群

其中Deployment的replicas為3，因為我們的k8s集群有三個工作節點

Service的類型為LoadBalancer，這樣google cloud會自動幫我們創建負載均衡器並分配IP

apiVersion: apps/v1
kind: Deployment
metadata:
name: deployment-blog-vuepress
labels:
app: blog-vuepress
spec:
replicas: 3
selector:
matchLabels:
app: blog-vuepress
template:
metadata:
labels:
app: blog-vuepress
spec:
containers:
- name: blog-vuepress
image: finleyma/blog-vuepress:latest
ports:
- containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
name: service-blog-vuepress
spec:
type: LoadBalancer
selector:
app: blog-vuepress
ports:
# 默認情况下，為了方便起見，`targetPort` 被設置為與 `port` 字段相同的值。
- protocol: TCP
## service暴露在cluster ip上的端口
port: 80
## targetPort是pod上的端口,Dockerfile中指定了80
targetPort: 80
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4. 稍等片刻，查看剛剛創建的service

kubectl describe svc service-blog-vuepress

注意LoadBalancer Ingress是暴露出來的可以外部訪問的IP啦

以上基本功能已經完成，接下來我們實現自動化

5. 提交代碼後自動創建鏡像

項目根目錄創建.github/workflows/cloud.yaml

# This is a basic workflow to help you get started with Actions
name: CI
# Controls when the action will run. Triggers the workflow on push or pull request
# events but only for the master branch
on:
push:
branches: [ master ]
env:
CI: true
NODE: 14.x
# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
# This workflow contains a single job called "build"
build:
# The type of runner that the job will run on
runs-on: ubuntu-latest
# Steps represent a sequence of tasks that will be executed as part of the job
steps:
- uses: actions/[email protected]
- name: Install Node.js
uses: actions/[email protected]
with:
node-version: "${{ env.NODE }}"
- name: Install npm dependencies
run: npm ci
- name: Run build task
run: npm run build --if-present
- name: Build the Docker image
run: docker build . --file Dockerfile
- name: publish docker image
uses: elgohr/[email protected]
with:
name: finleyma/blog-vuepress
username: finleyma
password: ${{ secrets.DOCKER_HUB_PASSWORD }}
tags: "latest"
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6. TODO github actions結合google cloud

github.com/actions/sta…