Remove dockerize in favor of docker-compose features

README.md

@@ -33,7 +33,8 @@ Alternatively you can also build all the images on Podman, which requires Podman
 Once images are ready, you can start them with a single command
 `docker-compose up` or `podman-compose up`. 
 
-Containers startup order is coordinated with [`dockerize` script](https://github.com/jwilder/dockerize). 
+Containers startup order is coordinated with the `service_healthy` condition of the Docker Compose [depends-on](https://github.com/compose-spec/compose-spec/blob/master/spec.md#depends_on) expression 
+and the [healthcheck](https://github.com/compose-spec/compose-spec/blob/master/spec.md#healthcheck) of the service containers. 
 After starting services, it takes a while for API Gateway to be in sync with service registry,
 so don't be scared of initial Spring Cloud Gateway timeouts. You can track services availability using Eureka dashboard
 available by default at http://localhost:8761.

docker-compose.yml

@@ -1,71 +1,106 @@
-version: '2'
+version: '3'
 
 services:
   config-server:
     image: springcommunity/spring-petclinic-config-server
     container_name: config-server
-    mem_limit: 512M
+    deploy:
+      resources:
+        limits:
+          memory: 512M
+    healthcheck:
+      test: ["CMD", "curl", "-I", "http://config-server:8888"]
+      interval: 5s
+      timeout: 5s
+      retries: 10
     ports:
      - 8888:8888
 
   discovery-server:
     image: springcommunity/spring-petclinic-discovery-server
     container_name: discovery-server
-    mem_limit: 512M
+    deploy:
+      resources:
+        limits:
+          memory: 512M
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://discovery-server:8761"]
+      interval: 5s
+      timeout: 3s
+      retries: 10
     depends_on:
-      - config-server
-    entrypoint: ["./dockerize","-wait=tcp://config-server:8888","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+      config-server:
+        condition: service_healthy
     ports:
      - 8761:8761
 
   customers-service:
     image: springcommunity/spring-petclinic-customers-service
     container_name: customers-service
-    mem_limit: 512M
+    deploy:
+      resources:
+        limits:
+          memory: 512M
     depends_on:
-     - config-server
-     - discovery-server
-    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+      config-server:
+        condition: service_healthy
+      discovery-server:
+        condition: service_healthy
     ports:
     - 8081:8081
 
   visits-service:
     image: springcommunity/spring-petclinic-visits-service
     container_name: visits-service
-    mem_limit: 512M
+    deploy:
+      resources:
+        limits:
+          memory: 512M
     depends_on:
-     - config-server
-     - discovery-server
-    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+      config-server:
+        condition: service_healthy
+      discovery-server:
+        condition: service_healthy
     ports:
      - 8082:8082
 
   vets-service:
     image: springcommunity/spring-petclinic-vets-service
     container_name: vets-service
-    mem_limit: 512M
+    deploy:
+      resources:
+        limits:
+          memory: 512M
     depends_on:
-     - config-server
-     - discovery-server
-    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+      config-server:
+        condition: service_healthy
+      discovery-server:
+        condition: service_healthy
     ports:
      - 8083:8083
 
   api-gateway:
     image: springcommunity/spring-petclinic-api-gateway
     container_name: api-gateway
-    mem_limit: 512M
+    deploy:
+      resources:
+        limits:
+          memory: 512M
     depends_on:
-     - config-server
-     - discovery-server
-    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+      config-server:
+        condition: service_healthy
+      discovery-server:
+        condition: service_healthy
     ports:
      - 8080:8080
 
   tracing-server:
     image: openzipkin/zipkin
     container_name: tracing-server
-    mem_limit: 512M
+    deploy:
+      resources:
+        limits:
+          memory: 512M
     environment:
     - JAVA_OPTS=-XX:+UnlockExperimentalVMOptions -Djava.security.egd=file:/dev/./urandom
     ports:
@@ -74,11 +109,15 @@ services:
   admin-server:
     image: springcommunity/spring-petclinic-admin-server
     container_name: admin-server
-    mem_limit: 512M
+    deploy:
+      resources:
+        limits:
+          memory: 512M
     depends_on:
-     - config-server
-     - discovery-server
-    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+      config-server:
+        condition: service_healthy
+      discovery-server:
+        condition: service_healthy
     ports:
      - 9090:9090
 
@@ -87,13 +126,19 @@ services:
   grafana-server:
     build: ./docker/grafana
     container_name: grafana-server
-    mem_limit: 256M
+    deploy:
+      resources:
+        limits:
+          memory: 256M
     ports:
     - 3000:3000
 
   prometheus-server:
     build: ./docker/prometheus
     container_name: prometheus-server
-    mem_limit: 256M
+    deploy:
+      resources:
+        limits:
+          memory: 256M
     ports:
     - 9091:9090

docker/Dockerfile

@@ -4,20 +4,10 @@ ARG ARTIFACT_NAME
 COPY ${ARTIFACT_NAME}.jar application.jar
 RUN java -Djarmode=layertools -jar application.jar extract
 
-# Download dockerize and cache that layer
-ARG DOCKERIZE_VERSION
-RUN wget -O dockerize.tar.gz https://github.com/jwilder/dockerize/releases/download/${DOCKERIZE_VERSION}/dockerize-alpine-linux-amd64-${DOCKERIZE_VERSION}.tar.gz
-RUN tar xzf dockerize.tar.gz
-RUN chmod +x dockerize
-
 
 FROM eclipse-temurin:17
-
 WORKDIR application
 
-# Dockerize
-COPY --from=builder application/dockerize ./
-
 ARG EXPOSED_PORT
 EXPOSE ${EXPOSED_PORT}
 

pom.xml

@@ -39,7 +39,6 @@
         <docker.image.prefix>springcommunity</docker.image.prefix>
         <docker.image.exposed.port>9090</docker.image.exposed.port>
         <docker.image.dockerfile.dir>${basedir}</docker.image.dockerfile.dir>
-        <docker.image.dockerize.version>v0.6.1</docker.image.dockerize.version>
         <container.executable>docker</container.executable>
     </properties>
 
@@ -153,8 +152,6 @@
                                             <argument>ARTIFACT_NAME=${project.build.finalName}</argument>
                                             <argument>--build-arg</argument>
                                             <argument>EXPOSED_PORT=${docker.image.exposed.port}</argument>
-                                            <argument>--build-arg</argument>
-                                            <argument>DOCKERIZE_VERSION=${docker.image.dockerize.version}</argument>
                                             <argument>-t</argument>
                                             <argument>${docker.image.prefix}/${project.artifactId}</argument>
                                             <argument>${project.build.directory}</argument>