Implemented CI

.github/workflows/ci.yaml

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+

Dockerfile

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+FROM golang:1.22 AS base
+WORKDIR /app
+
+COPY go.mod .
+RUN go mod download
+COPY . .
+RUN go build -o main .
+
+## Final stage with distroless image ##
+FROM gcr.io/distroless/base:nonroot
+WORKDIR /app
+COPY --from=base /app/main .
+COPY --from=base /app/static ./static
+EXPOSE 8080
+CMD ["./main"] 

k8s/manifests/.github/workflows/ci.yaml

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+# CICD using GitHub actions
+
+name: CI/CD
+
+# Exclude the workflow to run on changes to the helm chart
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set up Go 1.22
+      uses: actions/setup-go@v4
+      with:
+        go-version: 1.22
+
+    - name: Build
+      run: go build -o go-web-app
+
+    - name: Test
+      run: go test ./...
+
+  code-quality:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Run golangci-lint
+      uses: golangci/golangci-lint-action@v6
+      with:
+        version: v1.56.2
+
+  push:
+    runs-on: ubuntu-latest
+
+    needs: build
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v1
+
+    - name: Login to DockerHub
+      uses: docker/login-action@v3
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+    - name: Build and Push action
+      uses: docker/build-push-action@v6
+      with:
+        context: .
+        file: ./Dockerfile
+        push: true
+        tags: ${{ secrets.DOCKERHUB_USERNAME }}/go-web-app:${{github.run_id}}
+
+  update-newtag-in-helm-chart:
+    runs-on: ubuntu-latest
+
+    needs: push
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+      with:
+        token: ${{ secrets.TOKEN }}
+
+    - name: Update tag in Helm chart
+      run: |
+        sed -i 's/tag: .*/tag: "${{github.run_id}}"/' helm/go-web-app-chart/values.yaml
+
+    - name: Commit and push changes
+      run: |
+        git config --global user.email "abhishek@gmail.com"
+        git config --global user.name "Abhishek Veeramalla"
+        git add helm/go-web-app-chart/values.yaml
+        git commit -m "Update tag in Helm chart"
+        git push
+

k8s/manifests/deployment.yaml

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+apiVersion : apps/v1
+kind : Deployment
+metadata:
+  name : go-web-app
+  labels:
+    app : go-web-app
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: go-web-app
+  template:
+    metadata:
+      labels:
+        app: go-web-app
+    spec:
+      containers:
+      - name: go-web-app
+        image: c5375391/go-web-app:v5
+        ports:
+        - containerPort: 8080
+

k8s/manifests/helm/go-web-app-chart/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

k8s/manifests/helm/go-web-app-chart/Chart.yaml

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+apiVersion: v2
+name: go-web-app-chart
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

k8s/manifests/helm/go-web-app-chart/templates/deployment.yaml

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+apiVersion : apps/v1
+kind : Deployment
+metadata:
+  name : go-web-app
+  labels:
+    app : go-web-app
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: go-web-app
+  template:
+    metadata:
+      labels:
+        app: go-web-app
+    spec:
+      containers:
+      - name: go-web-app
+        image: c5375391/go-web-app:{{ .Values.image.tag }}
+        ports:
+        - containerPort: 8080
+

k8s/manifests/helm/go-web-app-chart/templates/ingress.yaml

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+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: go-web-app
+  labels:
+    app: go-web-app
+  annotations:
+    kubernetes.io/ingress.class: "nginx"
+spec:
+  ingressClassName: nginx
+  rules:
+    - host: go-web-app.local
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: go-web-app
+                port:
+                  number: 8080

k8s/manifests/helm/go-web-app-chart/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: go-web-app
+  labels:
+    app: go-web-app
+spec:
+  type: NodePort
+  selector:
+    app: go-web-app
+  ports:
+    - port: 8080
+      targetPort: 8080
+
+

k8s/manifests/helm/go-web-app-chart/values.yaml

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+# Default values for go-web-app-chart.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: c5375391/go-web-app
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: "v5"
+
+ingress:
+  enabled: false
+  className: ""
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: chart-example.local
+      paths:
+        - path: /
+          pathType: ImplementationSpecific

k8s/manifests/ingress.yaml

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+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: go-web-app
+  labels:
+    app: go-web-app
+  annotations:
+    kubernetes.io/ingress.class: "nginx"
+spec:
+  ingressClassName: nginx
+  rules:
+    - host: go-web-app.local
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: go-web-app
+                port:
+                  number: 8080

k8s/manifests/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: go-web-app
+  labels:
+    app: go-web-app
+spec:
+  type: NodePort
+  selector:
+    app: go-web-app
+  ports:
+    - port: 8080
+      targetPort: 8080
+
+

k8s/manifests/service.yaml~

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+apiVersion: v1
+kind: Service
+metadata:
+  name: go-web-app
+  labels:
+    app: go-web-app
+spec:
+  type: ClusterIP
+  selector:
+    app: go-web-app
+  ports:
+    - port: 8080
+      targetPort: 8080
+
+