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I used github repository for our configuration, and "Docker image" with "Google container tools" done.
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‎config-server/.gitignore

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HELP.md
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target/
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.vscode/
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!.mvn/wrapper/maven-wrapper.jar
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!**/src/main/**/target/
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!**/src/test/**/target/
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### STS ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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### IntelliJ IDEA ###
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.idea
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.idea/
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*.iws
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*.iml
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*.ipr
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### NetBeans ###
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/nbproject/private/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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build/
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!**/src/main/**/build/
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!**/src/test/**/build/
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### VS Code ###
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.vscode/

‎config-server/README.md

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# Java Microservice - Config Server
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## Dependencies
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* Linux, VirtualBox or Docker Desktop
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* Java 11
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* Maven
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* Git Config Server Repository
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* Spring Boot : 2.5.0
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* Spring Boot Starter
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* Spring Cloud Config Server
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* Netflix Eureka Client
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* Google Container Tools
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## Configuration
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src/main/docker/app.yml
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```yaml
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version: '3.8'
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services:
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config-server:
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image: cevheri/config-server
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environment:
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- _JAVA_OPTIONS=-Xmx512m -Xms256m
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ports:
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- 9296:9296
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```
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We will use github public repository for our configuration:
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https://github.com/cevheri/microservices-config-server
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---
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## Development
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```shell
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$ ./mvnw package
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$ java -jar target/*.jar
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```
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Visit : http://localhost:8761/eureka/apps/config-server
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---
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## Production With Docker
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We will create Docker Image using Google Container Tools and run this Docker Image with Docker Compose.
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### Build docker image:
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```shell
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$ ./mvnw -Pprod clean verify jib:dockerBuild
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...
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[INFO] Executing tasks:
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[INFO] [==============================] 100.0% complete
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[INFO]
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[INFO] ------------------------------------------------------------------------
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[INFO] BUILD SUCCESS
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[INFO] ------------------------------------------------------------------------
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[INFO] Total time: 17.728 s
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[INFO] Finished at: 21:45:11+03:00
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[INFO] ------------------------------------------------------------------------
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```
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---
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### Run:
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```shell
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$ docker-compose -f src/main/docker/app.yml up -d
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Creating config-server ... done
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```
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---
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Visit : http://localhost:8761/eureka/apps/config-server
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```xml
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<application>
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<name>CONFIG-SERVER</name>
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<instance>
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<instanceId>192.168.1.57:config-server:9296</instanceId>
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<hostName>service-registry</hostName>
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<app>CONFIG-SERVER</app>
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<ipAddr>192.168.1.57</ipAddr>
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<status>UP</status>
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<overriddenstatus>UNKNOWN</overriddenstatus>
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<port enabled="true">9296</port>
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<securePort enabled="false">443</securePort>
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<countryId>1</countryId>
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<dataCenterInfo class="com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo">
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<name>MyOwn</name>
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</dataCenterInfo>
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<leaseInfo>
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<renewalIntervalInSecs>30</renewalIntervalInSecs>
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<durationInSecs>90</durationInSecs>
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<registrationTimestamp>1623790359757</registrationTimestamp>
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<lastRenewalTimestamp>1623790569749</lastRenewalTimestamp>
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<evictionTimestamp>0</evictionTimestamp>
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<serviceUpTimestamp>1623790359239</serviceUpTimestamp>
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</leaseInfo>
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<metadata>
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<management.port>9296</management.port>
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</metadata>
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<homePageUrl>http://service-registry:9296/</homePageUrl>
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<statusPageUrl>http://service-registry:9296/actuator/info</statusPageUrl>
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<healthCheckUrl>http://service-registry:9296/actuator/health</healthCheckUrl>
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<vipAddress>config-server</vipAddress>
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<secureVipAddress>config-server</secureVipAddress>
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<isCoordinatingDiscoveryServer>false</isCoordinatingDiscoveryServer>
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<lastUpdatedTimestamp>1623790359757</lastUpdatedTimestamp>
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<lastDirtyTimestamp>1623790359191</lastDirtyTimestamp>
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<actionType>ADDED</actionType>
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</instance>
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</application>
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```
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---
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### View docker images:
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```shell
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$ docker images
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REPOSITORY TAG IMAGE ID CREATED SIZE
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cevheri/config-server latest 57a100df8bcd 26 minutes ago 287MB
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```
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### View docker containers:
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````shell
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$ docker ps
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CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
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1ca74578a26b cevheri/config-server "bash -c /entrypoint…" 8 seconds ago Up 6 seconds 0.0.0.0:9296->9296/tcp, :::9296->9296/tcp docker_config-server_1
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````
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### Stop Docker Compose:
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```shell
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$ docker-compose -f src/main/docker/app.yml down
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```
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---
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### Screenshots
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![](files/pictures/spring-config-server-eureka-client.png)

‎config-server/files/pictures/spring-config-server-eureka-client.png

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‎config-server/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.5.0</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<groupId>com.cevher.ms</groupId>
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<artifactId>config-server</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<name>config-server</name>
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<description>Config Server Application</description>
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<properties>
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<java.version>11</java.version>
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<spring-cloud.version>2020.0.3</spring-cloud.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-config-server</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
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</dependency>
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<!-- https://mvnrepository.com/artifact/com.google.cloud.tools/jib-maven-plugin -->
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<dependency>
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<groupId>com.google.cloud.tools</groupId>
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<artifactId>jib-maven-plugin</artifactId>
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<version>3.1.1</version>
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</dependency>
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.5.0</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-dependencies</artifactId>
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<version>${spring-cloud.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<groupId>com.cevher.ms</groupId>
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<artifactId>config-server</artifactId>
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<version>1.0.0</version>
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<name>config-server</name>
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<description>Config Server Application</description>
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<properties>
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<java.version>11</java.version>
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<spring-cloud.version>2020.0.3</spring-cloud.version>
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<jib-maven-plugin.version>2.8.0</jib-maven-plugin.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-config-server</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-dependencies</artifactId>
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<version>${spring-cloud.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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<plugin>
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<groupId>com.google.cloud.tools</groupId>
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<artifactId>jib-maven-plugin</artifactId>
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<version>3.1.1</version>
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<configuration>
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<from>
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<image>adoptopenjdk:11-jre-hotspot</image>
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</from>
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<to>
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<image>config-server</image>
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</to>
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<container>
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<entrypoint>
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<shell>bash</shell>
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<option>-c</option>
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<arg>/entrypoint.sh</arg>
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</entrypoint>
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<ports>
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<port>9296</port>
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<port>9296/udp</port>
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</ports>
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<environment>
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<SPRING_OUTPUT_ANSI_ENABLED>ALWAYS</SPRING_OUTPUT_ANSI_ENABLED>
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<SLEEP>0</SLEEP>
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</environment>
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<creationTime>USE_CURRENT_TIMESTAMP</creationTime>
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<user>1000</user>
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</container>
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<extraDirectories>
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<paths>src/main/docker/jib</paths>
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<permissions>
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<permission>
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<file>/entrypoint.sh</file>
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<mode>755</mode>
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</permission>
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</permissions>
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</extraDirectories>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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<plugin>
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<groupId>com.google.cloud.tools</groupId>
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<artifactId>jib-maven-plugin</artifactId>
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</plugin>
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</plugins>
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<pluginManagement>
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<plugins>
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<plugin>
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<groupId>com.google.cloud.tools</groupId>
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<artifactId>jib-maven-plugin</artifactId>
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<version>${jib-maven-plugin.version}</version>
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<configuration>
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<from>
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<image>adoptopenjdk:11-jre-hotspot</image>
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</from>
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<to>
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<image>cevheri/config-server:latest</image>
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</to>
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<container>
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<entrypoint>
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<shell>bash</shell>
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<option>-c</option>
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<arg>/entrypoint.sh</arg>
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</entrypoint>
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<ports>
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<port>9296</port>
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</ports>
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<environment>
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<SPRING_OUTPUT_ANSI_ENABLED>ALWAYS</SPRING_OUTPUT_ANSI_ENABLED>
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<APP_SLEEP>0</APP_SLEEP>
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</environment>
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<creationTime>USE_CURRENT_TIMESTAMP</creationTime>
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<user>1000</user>
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</container>
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<extraDirectories>
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<paths>src/main/docker/jib</paths>
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<permissions>
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<permission>
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<file>/entrypoint.sh</file>
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<mode>755</mode>
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</permission>
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</permissions>
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</extraDirectories>
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</configuration>
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</plugin>
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</plugins>
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</pluginManagement>
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</build>
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</project>

‎config-server/src/main/docker/app.yml

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image: cevheri/config-server
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environment:
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- _JAVA_OPTIONS=-Xmx512m -Xms256m
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- LOGGING_FILE_NAME=/tmp/microservices-sr.log
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ports:
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- 9296:9296
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- 9296:9296

‎config-server/src/main/docker/jib/entrypoint.sh

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#!/bin/sh
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echo "The application will start in ..."
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exec java ${JAVA_OPTS} -noverify -XX:+AlwaysPreTouch -Djava.security.egd=file:/dev/./urandom -cp /app/resources/:/app/classes/:/app/libs/* "com.cevher.ms.config.ConfigServerApplication" "$@"

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