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.github/workflows/cicd.yml

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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
+    paths-ignore:
+      - 'helm/**'
+      - 'k8s/**'
+      - 'README.md'
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set up Go 1.22
+      uses: actions/setup-go@v2
+      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 "[email protected]"
+        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
+

Dockerfile

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+# Build stage
+
+FROM golang as base
+
+WORKDIR /app
+
+COPY go.mod  .
+
+RUN go mod download
+
+COPY . . 
+
+RUN go build -o main .
+
+
+# Executable  stage
+
+FROM gcr.io/distroless/base
+
+COPY --from=base  /app/main .
+COPY --from=base /app/static  ./static
+
+EXPOSE 8080
+
+CMD [ "./main" ]

gitops/argocd/01-install.md

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+# Install Argo CD
+
+## Install Argo CD using manifests
+
+```bash
+kubectl create namespace argocd
+kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
+```
+
+## Access the Argo CD UI (Loadbalancer service) 
+
+```bash
+kubectl patch svc argocd-server -n argocd -p '{"spec": {"type": "LoadBalancer"}}'
+```
+## Access the Argo CD UI (Loadbalancer service) -For Windows
+
+```bash
+kubectl patch svc argocd-server -n argocd -p '{\"spec\": {\"type\": \"LoadBalancer\"}}'
+```
+
+## Get the Loadbalancer service IP
+
+```bash
+kubectl get svc argocd-server -n argocd
+```

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/

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"

helm/go-web-app-chart/templates/deployment.yml

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+# This is a sample deployment manifest file for a simple web application.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: go-web-app
+  labels:
+    app: go-web-app
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: go-web-app
+  template:
+    metadata:
+      labels:
+        app: go-web-app
+    spec:
+      containers:
+      - name: go-web-app
+        image: ram1604/go-web-app:{{ .Values.image.tag }}
+        ports:
+        - containerPort: 8080

helm/go-web-app-chart/templates/ingress.yml

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+# Ingress resource for the application
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: go-web-app
+  annotations:
+    nginx.ingress.kubernetes.io/rewrite-target: /
+spec:
+  ingressClassName: nginx
+  rules:
+  - host: go-web-app.local
+    http:
+      paths: 
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: go-web-app
+            port:
+              number: 80
+
+

helm/go-web-app-chart/templates/service.yml

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+# Service for the application
+apiVersion: v1
+kind: Service
+metadata:
+  name: go-web-app
+  labels:
+    app: go-web-app
+spec:
+  ports:
+  - port: 80
+    targetPort: 8080
+    protocol: TCP
+  selector:
+    app: go-web-app
+  type: ClusterIP
+

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: ram1604/go-web-app
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: "v1"
+
+ingress:
+  enabled: false
+  className: ""
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: chart-example.local
+      paths:
+        - path: /
+          pathType: ImplementationSpecific