[Feature] Helm기반 github action 배포 파이프라인 구축

.github/workflows/deploy.yml

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+name: Build and Deploy Python Demo
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}/python-demo
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Log in to Container Registry
+      uses: docker/login-action@v3
+      with:
+        registry: ${{ env.REGISTRY }}
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Generate commit-based tags
+      id: meta
+      run: |
+        IMAGE_NAME_LOWER=$(echo "${{ env.IMAGE_NAME }}" | tr '[:upper:]' '[:lower:]')
+        COMMIT_SHA="${{ github.sha }}"
+        SHORT_SHA=${COMMIT_SHA:0:7}
+
+        echo "image_name_lower=$IMAGE_NAME_LOWER" >> $GITHUB_ENV
+        echo "commit_tag=$SHORT_SHA" >> $GITHUB_ENV
+
+        if [ "${{ github.ref }}" = "refs/heads/main" ]; then
+          echo "tags=${{ env.REGISTRY }}/$IMAGE_NAME_LOWER:latest,${{ env.REGISTRY }}/$IMAGE_NAME_LOWER:$SHORT_SHA" >> $GITHUB_OUTPUT
+        else
+          REF_NAME=$(echo "${{ github.ref_name }}" | sed 's/\//-/g')
+          echo "tags=${{ env.REGISTRY }}/$IMAGE_NAME_LOWER:$REF_NAME-$SHORT_SHA" >> $GITHUB_OUTPUT
+        fi
+
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        platforms: linux/amd64,linux/arm64
+        push: true
+        tags: ${{ steps.meta.outputs.tags }}
+        cache-from: type=gha
+        cache-to: type=gha,mode=max
+
+  deploy:
+    needs: build-and-push
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main'
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set up Helm
+      uses: azure/setup-helm@v3
+      with:
+        version: '3.12.0'
+
+    - name: Set up kubectl
+      uses: azure/setup-kubectl@v3
+      with:
+        version: '1.28.0'
+
+    - name: Configure kubectl
+      run: |
+        mkdir -p ~/.kube
+        echo "${{ secrets.KUBECONFIG }}" | base64 -d > ~/.kube/config
+        chmod 600 ~/.kube/config
+
+    - name: Test kubectl connection
+      run: |
+        kubectl cluster-info
+        kubectl get nodes
+
+    - name: Generate commit-based image info
+      run: |
+        IMAGE_NAME_LOWER=$(echo "${{ env.IMAGE_NAME }}" | tr '[:upper:]' '[:lower:]')
+        COMMIT_SHA="${{ github.sha }}"
+        SHORT_SHA=${COMMIT_SHA:0:7}
+
+        echo "Using image: ${{ env.REGISTRY }}/$IMAGE_NAME_LOWER:$SHORT_SHA"
+        echo "IMAGE_REPO=${{ env.REGISTRY }}/$IMAGE_NAME_LOWER" >> $GITHUB_ENV
+        echo "IMAGE_TAG=$SHORT_SHA" >> $GITHUB_ENV
+
+    - name: Update values.yaml for GitHub Container Registry
+      run: |
+        sed -i "s|repository: python-demo|repository: ${{ env.IMAGE_REPO }}|g" python-demo-chart/values.yaml
+        sed -i "s|tag: \"latest\"|tag: \"${{ env.IMAGE_TAG }}\"|g" python-demo-chart/values.yaml
+
+        echo "Updated values.yaml:"
+        grep -A 5 "image:" python-demo-chart/values.yaml
+
+    - name: Helm Deploy
+      run: |
+        helm upgrade --install python-demo-app ./python-demo-chart \
+          --namespace python-demo \
+          --create-namespace \
+          --wait \
+          --timeout=300s
+
+    - name: Verify Deployment
+      run: |
+        kubectl get pods -n python-demo
+        kubectl get services -n python-demo
+
+    - name: Get Service URL (minikube)
+      run: |
+        echo "Service URL:"
+        echo "Run 'minikube service python-demo-app-python-demo-chart -n python-demo --url' to get the service URL"

Dockerfile

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+FROM python:3.11-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app.py .
+
+EXPOSE 8080
+
+RUN adduser --disabled-password --gecos '' appuser
+USER appuser
+
+CMD ["gunicorn", "--bind", "0.0.0.0:8080", "--workers", "2", "app:app"]

app.py

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+from flask import Flask, jsonify 
+import os
+
+app = Flask(__name__)
+
+@app.route('/')
+def hello():
+    return jsonify({
+        'message': 'This is AWS Study\'s perfect project!!!',
+        'version': '1.0.0',
+        'environment': os.getenv('ENVIRONMENT', 'development')
+    })
+
+@app.route('/test')
+def test():
+    return jsonify({
+        'status': 'server test',
+        'service': 'python-demo-server'
+    })
+
+if __name__ == '__main__':
+    port = int(os.getenv('PORT', 8080))
+    app.run(host='0.0.0.0', port=port)

python-demo-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/

python-demo-chart/Chart.yaml

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+apiVersion: v2
+name: python-demo-chart
+description: A Helm chart for Python Demo Server - AWS Study's perfect project
+
+# 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: "1.0.0"

python-demo-chart/templates/NOTES.txt

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+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "python-demo-chart.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch its status by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "python-demo-chart.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "python-demo-chart.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "python-demo-chart.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
+{{- end }}

python-demo-chart/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "python-demo-chart.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "python-demo-chart.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "python-demo-chart.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "python-demo-chart.labels" -}}
+helm.sh/chart: {{ include "python-demo-chart.chart" . }}
+{{ include "python-demo-chart.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "python-demo-chart.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "python-demo-chart.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "python-demo-chart.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "python-demo-chart.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

python-demo-chart/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "python-demo-chart.fullname" . }}
+  labels:
+    {{- include "python-demo-chart.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "python-demo-chart.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "python-demo-chart.labels" . | nindent 8 }}
+        {{- with .Values.podLabels }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "python-demo-chart.serviceAccountName" . }}
+      {{- with .Values.podSecurityContext }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: {{ .Chart.Name }}
+          {{- with .Values.securityContext }}
+          securityContext:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: {{ .Values.service.targetPort }}
+              protocol: TCP
+          env:
+          {{- range $key, $value := .Values.env }}
+          - name: {{ $key }}
+            value: {{ $value | quote }}
+          {{- end }}
+          {{- with .Values.livenessProbe }}
+          livenessProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.readinessProbe }}
+          readinessProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.volumeMounts }}
+          volumeMounts:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+      {{- with .Values.volumes }}
+      volumes:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}