diff --git a/.env b/.env
new file mode 100644
index 0000000..91e32a9
--- /dev/null
+++ b/.env
@@ -0,0 +1,4 @@
+PG_USER=postgres
+PG_PASSWORD=postgres
+PG_HOST=localhost
+PORT=8080
\ No newline at end of file
diff --git a/.github/workflows/cloud-run-action.yml b/.github/workflows/cloud-run-action.yml
new file mode 100644
index 0000000..f2a1e83
--- /dev/null
+++ b/.github/workflows/cloud-run-action.yml
@@ -0,0 +1,123 @@
+name: Java CI/CD Pipeline
+
+on:
+  push:
+    branches: 
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: "21"
+          cache: "gradle"
+
+      - name: Cache Gradle dependencies
+        uses: actions/cache@v4
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
+      - name: Build with Gradle
+        run: |
+          ./gradlew assemble
+      # (Optional) Add steps for running tests and generating reports
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: java-app
+          path: build/libs/*.jar
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: "21"
+          cache: "gradle"
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
+      - name: Cache Gradle dependencies
+        uses: actions/cache@v4
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+
+      - name: Test with Gradle
+        run: |
+          ./gradlew check --info --stacktrace
+          ./gradlew test
+          ./gradlew jacocoTestReport
+      # (Optional) Add steps for generating coverage report and other post-test tasks
+
+  publish:
+    name: Publish Docker Image
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+      - name: check directory
+        run: ls -al
+      - name: Download Artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: java-app
+      - name: check directory
+        run: ls -al
+      - name: Login to Docker Hub
+        run: echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.REGISTRY_USER }} --password-stdin docker.io
+      - name: Set Docker BuildKit
+        run: export DOCKER_BUILDKIT=1
+      - name: Build Docker Image
+        run: |
+          docker build --build-arg PRODUCTION=${{ secrets.PRODUCTION }} --build-arg JDBC_DATABASE_PASSWORD=${{ secrets.JDBC_DATABASE_PASSWORD }} --build-arg JDBC_DATABASE_URL=${{ secrets.JDBC_DATABASE_URL }} --build-arg JDBC_DATABASE_USERNAME=${{ secrets.JDBC_DATABASE_USERNAME }} -t ${{ secrets.REGISTRY_USER }}/${{ secrets.IMAGE_NAME }}:${{ secrets.IMAGE_TAG }} .
+          docker push ${{ secrets.REGISTRY_USER }}/${{ secrets.IMAGE_NAME }}:${{ secrets.IMAGE_TAG }}
+
+
+
+  deploy:
+    name: Deploy to GCP
+    runs-on: ubuntu-latest
+    needs: publish
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Install SSH client
+        run: sudo apt-get install openssh-client
+
+      - name: create ssh key
+        run: echo "${{ secrets.SSH_KEY }}" > ssh-key.pem
+
+      - name: update permission ssh key
+        run: chmod 400 ssh-key.pem
+
+      - name: Deploy to GCP
+        run: |
+          ssh -o StrictHostKeyChecking=no -i ssh-key.pem ${{ secrets.GCP_USERNAME }}@${{ secrets.GCP_STATIC_IP }} "
+            sudo docker container rm -f ${{ secrets.CONTAINER_NAME }} || true &&
+            sudo docker image rm -f ${{ secrets.REGISTRY_USER }}/${{ secrets.IMAGE_NAME }}:${{ secrets.IMAGE_TAG }} || true &&
+            sudo docker run --name ${{ secrets.CONTAINER_NAME }} -d -p 80:8080 ${{ secrets.REGISTRY_USER }}/${{ secrets.IMAGE_NAME }}:${{ secrets.IMAGE_TAG }}"
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..db9b952
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,16 @@
+FROM gradle:jdk21-alpine
+ARG PRODUCTION
+ARG JDBC_DATABASE_PASSWORD
+ARG JDBC_DATABASE_URL
+ARG JDBC_DATABASE_USERNAME
+
+ENV PRODUCTION ${PRODUCTION}
+ENV JDBC_DATABASE_PASSWORD ${JDBC_DATABASE_PASSWORD}
+ENV JDBC_DATABASE_URL ${JDBC_DATABASE_URL}
+ENV JDBC_DATABASE_USERNAME ${JDBC_DATABASE_USERNAME}
+
+WORKDIR /app
+COPY ./review-0.0.1-SNAPSHOT.jar /app
+RUN ls -la
+EXPOSE 8080
+CMD ["java","-jar","review-0.0.1-SNAPSHOT.jar"]
\ No newline at end of file
diff --git a/build.gradle.kts b/build.gradle.kts
index 0de0729..2a83950 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -2,6 +2,7 @@ plugins {
 	java
 	id("org.springframework.boot") version "3.2.5"
 	id("io.spring.dependency-management") version "1.1.4"
+	jacoco
 }
 
 group = "snackscription"
@@ -34,3 +35,19 @@ dependencies {
 tasks.withType<Test> {
 	useJUnitPlatform()
 }
+
+tasks.test {
+	useJUnitPlatform()
+	finalizedBy(tasks.jacocoTestReport)
+}
+tasks.jacocoTestReport {
+	classDirectories.setFrom(files(classDirectories.files.map {
+		fileTree(it) { exclude("**/*Application**")}
+	}))
+	dependsOn(tasks.test)
+	reports {
+		xml.required.set(false)
+		csv.required.set(false)
+		html.outputLocation.set(layout.buildDirectory.dir("jacocoHtml"))
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/snackscription/review/ReviewApplication.java b/src/main/java/snackscription/review/ReviewApplication.java
index f9e2818..ec64e1c 100644
--- a/src/main/java/snackscription/review/ReviewApplication.java
+++ b/src/main/java/snackscription/review/ReviewApplication.java
@@ -8,6 +8,8 @@ public class ReviewApplication {
 
 	public static void main(String[] args) {
 		SpringApplication.run(ReviewApplication.class, args);
+
+		
 	}
 
 }
diff --git a/src/main/java/snackscription/review/controller/ReviewController.java b/src/main/java/snackscription/review/controller/ReviewController.java
new file mode 100644
index 0000000..7abe48b
--- /dev/null
+++ b/src/main/java/snackscription/review/controller/ReviewController.java
@@ -0,0 +1,15 @@
+package snackscription.review.controller;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+@Controller
+@RequestMapping("/")
+public class ReviewController {
+    @GetMapping("")
+    public ResponseEntity<String> reviewPage() {
+        return ResponseEntity.ok().body("Welcome to the review service!");
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/snackscription/review/model/Review.java b/src/main/java/snackscription/review/model/Review.java
new file mode 100644
index 0000000..c05c8b9
--- /dev/null
+++ b/src/main/java/snackscription/review/model/Review.java
@@ -0,0 +1,39 @@
+package snackscription.review.model;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.UUID;
+
+@Getter
+public class Review {
+    private final String id;
+    private int rating;
+    @Setter
+    private String content;
+    @Setter
+    private ReviewState state;
+    private final String userId;
+    private final String subscriptionBoxId;
+
+    public Review(int rating, String content, String userId, String subscriptionBoxId) {
+        this.id = UUID.randomUUID().toString();
+        this.rating = rating;
+        this.content = content;
+        this.state = new ReviewStatePending(this);
+        this.userId = userId;
+        this.subscriptionBoxId = subscriptionBoxId;
+    }
+
+    public void editReview(int rating, String content) {
+        this.setRating(rating);
+        this.setContent(content);
+    }
+
+    public void setRating(int rating) {
+        if (rating < 0 || rating > 5) {
+            throw new RuntimeException("Rating should be between 0 and 5.");
+        }
+        this.rating = rating;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/snackscription/review/model/ReviewState.java b/src/main/java/snackscription/review/model/ReviewState.java
new file mode 100644
index 0000000..b6d5daa
--- /dev/null
+++ b/src/main/java/snackscription/review/model/ReviewState.java
@@ -0,0 +1,13 @@
+package snackscription.review.model;
+
+public abstract class ReviewState {
+    Review review;
+    String state;
+    ReviewState(Review review) {
+        this.review = review;
+    }
+
+    public abstract void  approve();
+
+    public abstract void reject();
+}
\ No newline at end of file
diff --git a/src/main/java/snackscription/review/model/ReviewStateApproved.java b/src/main/java/snackscription/review/model/ReviewStateApproved.java
new file mode 100644
index 0000000..3875665
--- /dev/null
+++ b/src/main/java/snackscription/review/model/ReviewStateApproved.java
@@ -0,0 +1,23 @@
+package snackscription.review.model;
+
+public class ReviewStateApproved extends ReviewState {
+
+    ReviewStateApproved(Review review) {
+        super(review);
+    }
+
+    @Override
+    public void approve() {
+        throw new RuntimeException("Review already approved.");
+    }
+
+    @Override
+    public void reject() {
+        this.review.setState(new ReviewStateRejected(this.review));
+    }
+
+    @Override
+    public String toString() {
+        return "Approved";
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/snackscription/review/model/ReviewStatePending.java b/src/main/java/snackscription/review/model/ReviewStatePending.java
new file mode 100644
index 0000000..0064775
--- /dev/null
+++ b/src/main/java/snackscription/review/model/ReviewStatePending.java
@@ -0,0 +1,23 @@
+package snackscription.review.model;
+
+public class ReviewStatePending extends ReviewState {
+
+    ReviewStatePending(Review review) {
+        super(review);
+    }
+
+    @Override
+    public void approve() {
+        this.review.setState(new ReviewStateApproved(this.review));
+    }
+
+    @Override
+    public void reject() {
+        this.review.setState(new ReviewStateRejected(this.review));
+    }
+
+    @Override
+    public String toString() {
+        return "Pending";
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/snackscription/review/model/ReviewStateRejected.java b/src/main/java/snackscription/review/model/ReviewStateRejected.java
new file mode 100644
index 0000000..68df2cd
--- /dev/null
+++ b/src/main/java/snackscription/review/model/ReviewStateRejected.java
@@ -0,0 +1,22 @@
+package snackscription.review.model;
+
+public class ReviewStateRejected extends ReviewState {
+    ReviewStateRejected(Review review) {
+        super(review);
+    }
+
+    @Override
+    public void approve() {
+        this.review.setState(new ReviewStateApproved(this.review));
+    }
+
+    @Override
+    public void reject() {
+        throw new RuntimeException("Review already rejected.");
+    }
+
+    @Override
+    public String toString() {
+        return "Rejected";
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/application-dev.properties b/src/main/resources/application-dev.properties
new file mode 100644
index 0000000..4983766
--- /dev/null
+++ b/src/main/resources/application-dev.properties
@@ -0,0 +1,7 @@
+spring.datasource.url=jdbc:postgresql://aws-0-ap-southeast-1.pooler.supabase.com:5432/postgres
+spring.datasource.username=postgres
+spring.datasource.password=postgres
+spring.jpa.hibernate.ddl-auto=create-drop
+spring.jpa.show-sql=true
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
+spring.jpa.properties.hibernate.format_sql=true
\ No newline at end of file
diff --git a/src/main/resources/application-prod.properties b/src/main/resources/application-prod.properties
new file mode 100644
index 0000000..2dd3dab
--- /dev/null
+++ b/src/main/resources/application-prod.properties
@@ -0,0 +1,6 @@
+spring.datasource.url=${JDBC_DATABASE_URL}
+spring.datasource.username=${JDBC_DATABASE_USERNAME}
+spring.datasource.password=${JDBC_DATABASE_PASSWORD}
+spring.jpa.hibernate.ddl-auto=update
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
+spring.jpa.properties.hibernate.format_sql=true
\ No newline at end of file
diff --git a/src/main/resources/application-test.properties b/src/main/resources/application-test.properties
new file mode 100644
index 0000000..9b629dc
--- /dev/null
+++ b/src/main/resources/application-test.properties
@@ -0,0 +1,7 @@
+spring.datasource.url=jdbc:postgresql://aws-0-ap-southeast-1.pooler.supabase.com:5432/postgres
+spring.datasource.username=postgres
+spring.datasource.password=postgres
+spring.jpa.hibernate.ddl-auto=create
+spring.jpa.show-sql=true
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
+spring.jpa.properties.hibernate.format_sql=true
\ No newline at end of file
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index fd7c01a..338aaa3 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -1 +1,2 @@
 spring.application.name=review
+spring.profiles.active=${PRODUCTION:dev}
\ No newline at end of file
diff --git a/src/test/java/snackscription/review/model/ReviewTest.java b/src/test/java/snackscription/review/model/ReviewTest.java
new file mode 100644
index 0000000..74815f8
--- /dev/null
+++ b/src/test/java/snackscription/review/model/ReviewTest.java
@@ -0,0 +1,95 @@
+package snackscription.review.model;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class ReviewTest {
+    Review review;
+
+    @BeforeEach
+    void setUp() {
+        this.review = new Review(
+                5,
+                "Bagus bgt dah",
+                "1",
+                "111"
+        );
+    }
+
+    @Test
+    void testCreateReview() {
+        int rating = 3;
+        String content = "Wow!";
+        String userId = "33";
+        String subscriptionBoxId = "12345";
+
+        Review newReview = new Review(rating, content, userId, subscriptionBoxId);
+        assertEquals(rating, newReview.getRating());
+        assertEquals(content, newReview.getContent());
+        assertEquals(userId, newReview.getUserId());
+        assertEquals(subscriptionBoxId, newReview.getSubscriptionBoxId());
+        assertNotNull(newReview.getId());
+        assertEquals("Pending", newReview.getState().toString());
+    }
+
+    @Test
+    void testEditReview() {
+        int newRating = 1;
+        String newContent = "jelek";
+        this.review.editReview(newRating, newContent);
+        assertEquals(newRating, this.review.getRating());
+        assertEquals(newContent, this.review.getContent());
+        assertEquals("Pending", this.review.getState().toString());
+    }
+
+    @Test
+    void testEditReviewInvalid() {
+        int newRating = -1;
+        String newContent = "jelek";
+        assertThrows(RuntimeException.class, () -> this.review.editReview(newRating, newContent));
+    }
+
+    @Test
+    void testApprovePendingReview() {
+        this.review.setState(new ReviewStatePending(this.review));
+        this.review.getState().approve();
+        assertEquals("Approved", this.review.getState().toString());
+    }
+
+    @Test
+    void testRejectPendingReview() {
+        this.review.setState(new ReviewStatePending(this.review));
+        this.review.getState().reject();
+        assertEquals("Rejected", this.review.getState().toString());
+    }
+
+    @Test
+    void testApproveApprovedReview() {
+        this.review.setState(new ReviewStateApproved(this.review));
+        assertThrows(RuntimeException.class, () -> this.review.getState().approve());
+        assertEquals("Approved", this.review.getState().toString());
+    }
+
+    @Test
+    void testRejectApprovedReview() {
+        this.review.setState(new ReviewStateApproved(this.review));
+        this.review.getState().reject();
+        assertEquals("Rejected", this.review.getState().toString());
+    }
+
+    @Test
+    void testApproveRejectedReview() {
+        this.review.setState(new ReviewStateRejected(this.review));
+        this.review.getState().approve();
+        assertEquals("Approved", this.review.getState().toString());
+    }
+
+    @Test
+    void testRejectRejectedReview() {
+        this.review.setState(new ReviewStateRejected(this.review));
+        assertThrows(RuntimeException.class, () -> this.review.getState().reject());
+        assertEquals("Rejected", this.review.getState().toString());
+    }
+}
\ No newline at end of file