Cicd/GitHub actions 1

.dockerignore

@@ -0,0 +1,6 @@
+target
+.mvn/wrapper/dists
+.git
+.gitignore
+.idea
+*.iml

.github/workflows/cd-master.yml

@@ -0,0 +1,49 @@
+name: CD - Build, Push Image, (Optional) Rollout
+
+on:
+  push:
+    branches: [ master ]
+
+env:
+  IMAGE_NAME: ghcr.io/${{ github.repository_owner }}/intens-api-2022
+  TAG: ${{ github.sha }}
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write   # potrebno za push na GHCR
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 8 (Temurin)
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '8'
+          cache: 'maven'
+
+      - name: Build JAR
+        run: mvn -B -e -DskipTests clean package
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build & push Docker image (Dockerfile.ci)
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile.ci
+          push: true
+          tags: |
+            ${{ env.IMAGE_NAME }}:latest
+            ${{ env.IMAGE_NAME }}:${{ env.TAG }}

.github/workflows/ci-pr.yml

@@ -0,0 +1,22 @@
+name: CI - PR tests
+
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 8 (Temurin)
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '8'
+          cache: 'maven'
+
+      - name: Run tests
+        run: mvn -B -e test

Dockerfile

@@ -0,0 +1,31 @@
+FROM container-registry.oracle.com/java/jdk:8 AS build
+
+ENV MAVEN_VERSION=3.8.8 \
+    MAVEN_HOME=/opt/maven \
+    PATH=/opt/maven/bin:$PATH
+
+RUN yum -y install curl tar gzip && \
+    curl -fsSL https://archive.apache.org/dist/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz -o /tmp/maven.tar.gz && \
+    tar -xzf /tmp/maven.tar.gz -C /opt && \
+    ln -s /opt/apache-maven-${MAVEN_VERSION} /opt/maven && \
+    ln -s /opt/maven/bin/mvn /usr/bin/mvn && \
+    yum clean all && rm -rf /var/cache/yum /tmp/*
+
+WORKDIR /app
+
+COPY pom.xml .
+RUN mvn -q -e -B -DskipTests dependency:go-offline
+
+COPY src ./src
+RUN mvn -q -e -B -DskipTests clean package
+
+FROM container-registry.oracle.com/java/serverjre:8
+WORKDIR /app
+
+ENV PORT=8080
+
+COPY --from=build /app/target/*.jar /app/app.jar
+
+ENTRYPOINT ["sh","-c","java -jar /app/app.jar --server.port=${PORT}"]
+
+EXPOSE 8080

Dockerfile.ci

@@ -0,0 +1,32 @@
+FROM eclipse-temurin:8-jdk AS build
+
+ARG MAVEN_VERSION=3.8.8
+ENV MAVEN_HOME=/opt/maven \
+    PATH=/opt/maven/bin:$PATH
+
+RUN apt-get update && apt-get install -y curl tar gzip && \
+    curl -fsSL https://archive.apache.org/dist/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz -o /tmp/maven.tar.gz && \
+    tar -xzf /tmp/maven.tar.gz -C /opt && \
+    ln -s /opt/apache-maven-${MAVEN_VERSION} /opt/maven && \
+    ln -s /opt/maven/bin/mvn /usr/bin/mvn && \
+    rm -rf /var/lib/apt/lists/* /tmp/*
+
+WORKDIR /app
+
+COPY pom.xml .
+RUN mvn -q -e -B -DskipTests dependency:go-offline
+
+COPY src ./src
+RUN mvn -q -e -B -DskipTests clean package
+
+FROM eclipse-temurin:8-jre
+
+WORKDIR /app
+
+ENV PORT=8080
+
+COPY --from=build /app/target/*.jar /app/app.jar
+
+ENTRYPOINT ["sh","-c","java -jar /app/app.jar --server.port=${PORT}"]
+
+EXPOSE 8080

README.md

@@ -16,3 +16,11 @@ https://docs.github.com/en/actions/automating-builds-and-tests/building-and-test
 1. Java 8 https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html
 2. Eclipse / IntelliJ / Alat po izboru
 3. Docker https://www.docker.com/products/docker-desktop
+
+
+### Kako pokrenuti Kubernetes
+1. Build local image: docker build -t intens-api-oracle-full:dev .
+2. Start Minikube: minikube start --driver=docker
+3. Load local image into Minikube: minikube image load intens-api-oracle-full:dev
+4. Apply manifests: kubectl apply -f k8s/
+5. Get URL and open the app: minikube service intens-api-svc --url

k8s/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: intens-api
+  labels:
+    app: intens-api
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: intens-api
+  template:
+    metadata:
+      labels:
+        app: intens-api
+    spec:
+      containers:
+        - name: intens-api
+          image: intens-api-oracle-full:dev
+          imagePullPolicy: IfNotPresent
+          env:
+            - name: PORT
+              value: "8080"
+          ports:
+            - containerPort: 8080
+          readinessProbe:
+            tcpSocket:
+              port: 8080
+            initialDelaySeconds: 4
+            periodSeconds: 5
+          livenessProbe:
+            tcpSocket:
+              port: 8080
+            initialDelaySeconds: 10
+            periodSeconds: 10
+          resources:
+            requests:
+              cpu: "100m"
+              memory: "128Mi"
+            limits:
+              cpu: "500m"
+              memory: "512Mi"

k8s/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: intens-api-svc
+  labels:
+    app: intens-api
+spec:
+  type: NodePort
+  selector:
+    app: intens-api
+  ports:
+    - name: http
+      port: 8080
+      targetPort: 8080
+      nodePort: 30080

src/main/resources/application.properties

@@ -1 +1 @@
-server.port=${PORT}
+server.port=${PORT:8080}