dockerize application

.dockerignore

@@ -0,0 +1,2 @@
+*
+!build/libs/

.env.example

@@ -0,0 +1,7 @@
+DB_URL=localhost:5432
+DB_NAME=demo
+DB_SCHEMA=public
+DB_USERNAME=postgres
+DB_PASSWORD=postgres
+
+KAFKA_SERVERS=localhost:9095

.gitignore

@@ -30,3 +30,6 @@ out/
 
 ### Kotlin ###
 .kotlin
+
+.env
+docker-compose.override.yml

Dockerfile

@@ -0,0 +1,3 @@
+FROM openjdk:17-jdk-slim
+COPY --chmod=777 build/libs/demo-single-version.jar /application/demo.jar
+CMD ["java", "-jar", "/application/demo.jar"]

build.gradle.kts

@@ -11,7 +11,7 @@ plugins {
 }
 
 group = "com.example"
-version = "0.0.1-SNAPSHOT"
+version = "single-version"
 
 java {
 	sourceCompatibility = JavaVersion.VERSION_17
@@ -69,4 +69,3 @@ tasks.test {
 tasks.jacocoTestReport {
 	dependsOn(tasks.test) // tests are required to run before generating the report
 }
-

docker-compose.yml

@@ -0,0 +1,17 @@
+---
+services:
+  demo:
+    image: localhost/spring-boot-demo:latest
+    build:
+      dockerfile: Dockerfile
+      context: .
+    environment:
+      DB_URL: $DB_URL
+      DB_NAME: $DB_NAME
+      DB_SCHEMA: $DB_SCHEMA
+      DB_USERNAME: $DB_USERNAME
+      DB_PASSWORD: $DB_PASSWORD
+      KAFKA_SERVERS: $KAFKA_SERVERS
+    expose:
+      - 8080
+      - 8081

readme.md

@@ -7,7 +7,7 @@ Demo приложение для изучения языка `kotlin` и фре
 * `jdk` версии `17`
 * `postgresql` версии `14`
 * `kafka` без авторизации
-* `docker` + `compose` (для тестов)
+* `docker` + `compose`
 
 ## Доступные команды
 
@@ -20,3 +20,15 @@ Demo приложение для изучения языка `kotlin` и фре
     ```shell
     ./gradlew bootRun
     ```
+
+## Запуск с docker-compose
+
+Перед каждым запуском необходимо собрать приложение:
+```shell
+./gradlew assemble
+```
+
+Затем можно запускать контейнер:
+```shell
+docker compose up -d
+```

src/main/resources/application.yml

@@ -3,20 +3,20 @@ spring:
   application:
     name: Demo
   datasource:
-    url: jdbc:postgresql://localhost:5432/demo?currentSchema=public
-    username: postgres
-    password: postgres
+    url: jdbc:postgresql://${DB_URL:localhost:5432}/${DB_NAME:demo}?currentSchema=${DB_SCHEMA:public}
+    username: ${DB_USERNAME:postgres}
+    password: ${DB_PASSWORD:postgres}
     driver-class-name: org.postgresql.Driver
     hikari:
-      schema: public
+      schema: ${DB_SCHEMA:public}
   flyway: #flyway automatically uses the datasource from the application to connect to the DB
     enabled: true # enables flyway database migration
     locations: classpath:db/migration/structure, classpath:db/migration/data # the location where flyway should look for migration scripts
     validate-on-migrate: true
-    default-schema: public
+    default-schema: ${DB_SCHEMA:public}
 
 kafka:
-  bootstrap-servers: localhost:9095
+  bootstrap-servers: ${KAFKA_SERVERS:localhost:9095}
   producer:
     product:
       default-sync-topic: demo-product-sync