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Varnit01-devVarnit01-dev
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feat: Add CI/CD pipeline with GitHub Actions and Argo CD
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Lines changed: 278 additions & 9 deletions

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‎.github/workflows/ci.yml‎

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name: Go WebApp CI
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on:
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push:
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branches: [ main ]
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pull_request:
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branches: [ main ]
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jobs:
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build-and-test:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- name: Set up Go
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uses: actions/setup-go@v5
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with:
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go-version: '1.22'
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cache: true
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- name: Install dependencies
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run: go mod download
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- name: Run tests
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run: go test -v ./...
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- name: Build
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run: go build -v ./...
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build-docker:
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needs: build-and-test
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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- name: Login to DockerHub
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uses: docker/login-action@v3
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with:
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username: ${{ secrets.DOCKERHUB_USERNAME }}
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password: ${{ secrets.DOCKERHUB_TOKEN }}
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- name: Build and push
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uses: docker/build-push-action@v5
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with:
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context: .
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push: true
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tags: |
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${{ secrets.DOCKERHUB_USERNAME }}/go_webapp:latest
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${{ secrets.DOCKERHUB_USERNAME }}/go_webapp:${{ github.sha }}
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cache-from: type=registry,ref=${{ secrets.DOCKERHUB_USERNAME }}/go_webapp:buildcache
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cache-to: type=registry,ref=${{ secrets.DOCKERHUB_USERNAME }}/go_webapp:buildcache,mode=max

‎Deployment.yml‎

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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: go-webapp
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labels:
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app: go-webapp
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spec:
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replicas: 2
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selector:
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matchLabels:
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app: go-webapp
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template:
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metadata:
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labels:
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app: go-webapp
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spec:
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containers:
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- name: go-webapp
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image: go_webapp:latest
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imagePullPolicy: IfNotPresent
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ports:
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- containerPort: 8080
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resources:
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requests:
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memory: "64Mi"
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cpu: "250m"
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limits:
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memory: "128Mi"
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cpu: "500m"
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livenessProbe:
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httpGet:
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path: /home
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port: 8080
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initialDelaySeconds: 5
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periodSeconds: 10
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readinessProbe:
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httpGet:
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path: /home
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port: 8080
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initialDelaySeconds: 5
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periodSeconds: 10
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: go-webapp-service
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spec:
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selector:
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app: go-webapp
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ports:
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- protocol: TCP
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port: 80
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targetPort: 8080
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type: LoadBalancer

‎argocd/application.yaml‎

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apiVersion: argoproj.io/v1alpha1
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kind: Application
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metadata:
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name: go-webapp
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namespace: argocd
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spec:
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project: default
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source:
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repoURL: https://github.com/Varnit01-dev/go_webapp.git
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targetRevision: HEAD
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path: k8s
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directory:
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recurse: true
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destination:
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server: https://kubernetes.default.svc
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namespace: default
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syncPolicy:
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automated:
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prune: true
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selfHeal: true
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syncOptions:
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- CreateNamespace=true
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health:
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status: Healthy

‎dockerfile‎

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FROM golang:1.22 as base
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WORKDIR /the/workdir/path
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WORKDIR /app
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COPY go.mod .
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# Copy go mod and sum files
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COPY go.mod ./
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RUN go mod download
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# Download all dependencies
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RUN go mod download
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# Copy the source code
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COPY . .
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RUN go build -o main .
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# Build the application
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RUN CGO_ENABLED=0 GOOS=linux go build -o main .
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#FINAL STAGE -Distroless image
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FROM gcr.io/Distroless
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FROM gcr.io/distroless/static-debian11
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COPY --from=base /app/main /
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WORKDIR /app
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COPY --from=base /app/static/ ./static
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# Copy the binary and static files
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COPY --from=base /app/main /app/main
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COPY --from=base /app/static /app/static
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EXPOSE 8080
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CMD [ "./main" ]
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CMD ["/app/main"]
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‎k8s/deployment.yaml‎

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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: go-webapp
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labels:
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app: go-webapp
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spec:
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replicas: 2
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selector:
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matchLabels:
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app: go-webapp
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template:
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metadata:
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labels:
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app: go-webapp
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spec:
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containers:
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- name: go-webapp
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image: ${DOCKERHUB_USERNAME}/go_webapp:latest
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imagePullPolicy: Always
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ports:
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- containerPort: 8080
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resources:
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requests:
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memory: "64Mi"
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cpu: "250m"
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limits:
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memory: "128Mi"
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cpu: "500m"
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livenessProbe:
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httpGet:
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path: /home
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port: 8080
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initialDelaySeconds: 5
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periodSeconds: 10
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readinessProbe:
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httpGet:
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path: /home
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port: 8080
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initialDelaySeconds: 5
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periodSeconds: 10
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: go-webapp-service
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spec:
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selector:
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app: go-webapp
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ports:
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- protocol: TCP
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port: 80
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targetPort: 8080
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type: LoadBalancer

‎k8s/docker-secret.yaml‎

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apiVersion: v1
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kind: Secret
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metadata:
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name: dockerhub-secret
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namespace: default
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type: kubernetes.io/dockerconfigjson
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data:
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.dockerconfigjson: ${DOCKER_CONFIG_JSON}
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: go-webapp
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labels:
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app: go-webapp
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spec:
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replicas: 2
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selector:
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matchLabels:
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app: go-webapp
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template:
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metadata:
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labels:
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app: go-webapp
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spec:
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imagePullSecrets:
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- name: dockerhub-secret
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containers:
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- name: go-webapp
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image: ${DOCKERHUB_USERNAME}/go_webapp:latest
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imagePullPolicy: Always
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ports:
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- containerPort: 8080
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resources:
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requests:
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memory: "64Mi"
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cpu: "250m"
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limits:
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memory: "128Mi"
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cpu: "500m"
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livenessProbe:
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httpGet:
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path: /home
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port: 8080
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initialDelaySeconds: 5
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periodSeconds: 10
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readinessProbe:
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httpGet:
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path: /home
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port: 8080
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initialDelaySeconds: 5
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periodSeconds: 10

‎scripts/create-docker-secret.sh‎

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#!/bin/bash
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# Check if Docker Hub credentials are provided
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if [ -z "$1" ] || [ -z "$2" ]; then
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echo "Usage: $0 <dockerhub-username> <dockerhub-password>"
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exit 1
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fi
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# Create Docker config.json
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DOCKER_CONFIG_JSON=$(echo -n "{\"auths\":{\"https://index.docker.io/v1/\":{\"auth\":\"$(echo -n "$1:$2" | base64)\"}}}" | base64)
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# Create the secret
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cat <<EOF | kubectl apply -f -
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apiVersion: v1
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kind: Secret
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metadata:
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name: dockerhub-secret
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namespace: default
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type: kubernetes.io/dockerconfigjson
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data:
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.dockerconfigjson: ${DOCKER_CONFIG_JSON}
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EOF
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echo "Docker Hub secret created successfully!"

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