BAEL-219 - adding docker files

spring-cloud-config/docker/Dockerfile

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+FROM alpine:edge
+MAINTAINER baeldung.com
+RUN apk add --no-cache openjdk8
+COPY files/UnlimitedJCEPolicyJDK8/* /usr/lib/jvm/java-1.8-openjdk/jre/lib/security/

spring-cloud-config/docker/Dockerfile.client

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+FROM alpine-java:base
+MAINTAINER baeldung.com
+RUN apk --no-cache add netcat-openbsd
+COPY files/config-client.jar /opt/spring-cloud/lib/
+COPY files/config-client-entrypoint.sh /opt/spring-cloud/bin/
+RUN chmod 755 /opt/spring-cloud/bin/config-client-entrypoint.sh

spring-cloud-config/docker/Dockerfile.server

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+FROM alpine-java:base
+MAINTAINER baeldung.com
+COPY files/config-server.jar /opt/spring-cloud/lib/
+ENV SPRING_APPLICATION_JSON='{"spring": {"cloud": {"config": {"server": \
+    {"git": {"uri": "/var/lib/spring-cloud/config-repo", "clone-on-start": true}}}}}}'
+ENTRYPOINT ["/usr/bin/java"]
+CMD ["-jar", "/opt/spring-cloud/lib/config-server.jar"]
+VOLUME /var/lib/spring-cloud/config-repo
+EXPOSE 8888

spring-cloud-config/docker/config-client-entrypoint.sh

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+#!/bin/sh
+
+while ! nc -z config-server 8888 ; do
+    echo "Waiting for upcoming Config Server"
+    sleep 2
+done
+
+java -jar /opt/spring-cloud/lib/config-client.jar

spring-cloud-config/docker/docker-compose.scale.yml

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+version: '2'
+services:
+    config-server:
+        build:
+            context: .
+            dockerfile: Dockerfile.server
+        image: config-server:latest
+        expose:
+            - 8888
+        networks:
+            - spring-cloud-network
+        volumes:
+            - spring-cloud-config-repo:/var/lib/spring-cloud/config-repo
+        logging:
+            driver: json-file
+    config-client:
+        build:
+            context: .
+            dockerfile: Dockerfile.client
+        image: config-client:latest
+        entrypoint: /opt/spring-cloud/bin/config-client-entrypoint.sh
+        environment:
+            SPRING_APPLICATION_JSON: '{"spring": {"cloud": {"config": {"uri": "http://config-server:8888"}}}}'
+        expose:
+            - 8080
+        ports:
+            - 8080
+        networks:
+            - spring-cloud-network
+        links:
+            - config-server:config-server
+        depends_on:
+            - config-server
+        logging:
+            driver: json-file
+networks:
+    spring-cloud-network:
+        driver: bridge
+volumes:
+    spring-cloud-config-repo:
+        external: true

spring-cloud-config/docker/docker-compose.yml

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+version: '2'
+services:
+    config-server:
+        container_name: config-server
+        build:
+            context: .
+            dockerfile: Dockerfile.server
+        image: config-server:latest
+        expose:
+            - 8888
+        networks:
+            - spring-cloud-network
+        volumes:
+            - spring-cloud-config-repo:/var/lib/spring-cloud/config-repo
+        logging:
+            driver: json-file
+    config-client:
+        container_name: config-client
+        build:
+            context: .
+            dockerfile: Dockerfile.client
+        image: config-client:latest
+        entrypoint: /opt/spring-cloud/bin/config-client-entrypoint.sh
+        environment:
+            SPRING_APPLICATION_JSON: '{"spring": {"cloud": {"config": {"uri": "http://config-server:8888"}}}}'
+        expose:
+            - 8080
+        ports:
+            - 8080:8080
+        networks:
+            - spring-cloud-network
+        links:
+            - config-server:config-server
+        depends_on:
+            - config-server
+        logging:
+            driver: json-file
+networks:
+    spring-cloud-network:
+        driver: bridge
+volumes:
+    spring-cloud-config-repo:
+        external: true