Add docker image build

SmartClinicManagementSystem/app/Dockerfile

@@ -0,0 +1,13 @@
+# Step 1: Use Maven with JDK 21 to build the app
+FROM gradle:8.14.3-jdk21-alpine AS builder
+WORKDIR /app
+COPY build.gradle .
+COPY src ./src
+RUN gradle clean bootJar -DskipTests
+
+# Step 2: Use lightweight JRE 21 for running the app
+FROM eclipse-temurin:21-jre-alpine-3.22
+WORKDIR /app
+COPY --from=builder /app/build/libs/app-1.0.0.jar app.jar
+EXPOSE 8080
+ENTRYPOINT ["java", "-jar", "app.jar"]

SmartClinicManagementSystem/app/build.gradle

@@ -1,5 +1,9 @@
 import org.springframework.boot.gradle.plugin.SpringBootPlugin
 
+plugins {
+    id 'org.springframework.boot' version '3.5.7'
+}
+
 apply plugin: 'java'
 apply plugin: 'org.springframework.boot'
 
@@ -28,11 +32,11 @@ dependencies {
     runtimeOnly 'com.mysql:mysql-connector-j'
     runtimeOnly 'io.jsonwebtoken:jjwt-jackson:0.12.6'
 
-    testImplementation "org.junit.jupiter:junit-jupiter-api:${junitVersion}"
-    testImplementation "org.junit.jupiter:junit-jupiter-params:${junitVersion}"
+    testImplementation "org.junit.jupiter:junit-jupiter-api:5.9.3"
+    testImplementation "org.junit.jupiter:junit-jupiter-params:5.9.3"
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
 
-    testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:${junitVersion}"
+    testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.9.3"
 }
 
 test {

SmartClinicManagementSystem/app/src/main/resources/application.properties

@@ -10,7 +10,7 @@ spring.jpa.show-sql=true
 spring.jpa.properties.hibernate.format_sql=true
 spring.jpa.open-in-view=false
 
-spring.data.mongodb.uri=mongodb://root:cms@localhost:27017/prescriptions?authSource=admin
+spring.data.mongodb.uri=${SPRING_DATA_MONGODB_URI:mongodb://root:cms@localhost:27017/prescriptions?authSource=admin}
 
 logging.level.org.springframework.jdbc.datasource.init=DEBUG
 spring.sql.init.mode=always