#250: Jib maven plugin added to make the containerization easier.

documentation/guide-jib.asciidoc

@@ -0,0 +1,58 @@
+:toc:
+toc::[]
+
+= JIB
+jib is a tool from Google to create Docker images in simple and faster way. No dockerfile or no docker compose file is required. Using Jib, image can be created and uploaded to the registery even without Docker daemon.
+
+The JIB maven plugin configured to build the image using mvn command.
+
+== Build and run the image locally
+The Docker daemon should be available locally. 
+
+To build the docker image.
+[source]
+----
+mvn compile -Pcontainer
+
+docker images
+
+REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
+myapp-server/java   0.0.1-SNAPSHOT      c521c9800c48        51 years ago        206MB
+myapp-api/java      0.0.1-SNAPSHOT      7004670aa31e        51 years ago        161MB
+myapp-core/java     0.0.1-SNAPSHOT      82d949c3daa3        51 years ago        205MB
+----
+
+To run the image.
+
+[source]
+----
+docker run --publish 8081:8081 <image>
+----
+
+== Upload the image to the registery
+
+No docker daemon required to be installed on your machine for this.
+
+The first step is to configure the registery details in .m2/settings.xml.
+
+[source]
+----
+<servers>
+  <server>
+    <id>«registery»</id>
+    <username>«username»</username>
+    <password>«password»</password>
+  </server>
+</servers>
+----
+Keep the password encrypted (`mvn -ep`). Refer the documentation for the password encryption
+ https://maven.apache.org/guides/mini/guide-encryption.html
+
+Run the below command to create and push the image to the image repository.
+[source]
+----
+mvn compile -P release,container
+
+----
+
+

pom.xml

@@ -32,6 +32,8 @@
     <!-- Spring boot and spring cloud version has to match -->
     <spring.cloud.dependencies.version>2020.0.0</spring.cloud.dependencies.version>
     <jackson.version>2.11.2</jackson.version> <!-- Overriding Jackson for fixing vulnerabilities -->
+    <jib.version>2.8.0</jib.version>
+    <jib.container.image>adoptopenjdk/openjdk11:jre-11.0.4_11-alpine</jib.container.image>
     <guava.version>30.0-jre</guava.version>
     <junit.version>5.7.0</junit.version>
     <cxf.version>3.4.1</cxf.version>

templates/server/src/main/resources/archetype-resources/__batch__/pom.xml

@@ -51,5 +51,4 @@
       </plugin>
     </plugins>
   </build>
-
 </project>

templates/server/src/main/resources/archetype-resources/api/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>${groupId}</groupId>
     <artifactId>${rootArtifactId}</artifactId>
-   <version>${app.version}</version>
+    <version>${app.version}</version>
   </parent>
   <artifactId>${rootArtifactId}-api</artifactId>
   <packaging>jar</packaging>
@@ -42,4 +42,15 @@
       <scope>test</scope>
     </dependency>
   </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>com.google.cloud.tools</groupId>
+        <artifactId>jib-maven-plugin</artifactId>
+        <configuration>
+          <skip>true</skip>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>

templates/server/src/main/resources/archetype-resources/core/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>${groupId}</groupId>
     <artifactId>${rootArtifactId}</artifactId>
-     <version>${app.version}</version>
+    <version>${app.version}</version>
   </parent>
   <artifactId>${rootArtifactId}-core</artifactId>
   <packaging>jar</packaging>
@@ -66,7 +66,7 @@
 
     <!-- auto-configure datasource
       https://stackoverflow.com/questions/34964066/spring-boot-doesnt-use-datasource-properties
-      -->
+    -->
     <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-jdbc</artifactId>
@@ -132,7 +132,7 @@
 #elseif ($dbType == 'postgresql')
       <groupId>org.postgresql</groupId>
       <artifactId>postgresql</artifactId>
-      <!--<version>9.4.1211.jre7</version>-->
+      <!--<version>9.4.1211.jre7</version> -->
 #elseif ($dbType == 'mysql')
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
@@ -165,7 +165,7 @@
       <artifactId>h2</artifactId>
       <scope>test</scope>
     </dependency>
-#end
+ #end
 
     <!-- Flyway for DB Schema version management and migration -->
     <dependency>
@@ -230,7 +230,7 @@
     <profile>
       <id>embedded</id>
       <activation>
-       <activeByDefault>true</activeByDefault>
+        <activeByDefault>true</activeByDefault>
       </activation>
       <dependencies>
         <dependency>

templates/server/src/main/resources/archetype-resources/pom.xml

@@ -20,17 +20,21 @@
     <guava.version>$[guava.version]</guava.version>
     <devonfw.test.excluded.groups>system</devonfw.test.excluded.groups>
     <app.version>${revision}${changelist}</app.version>
+    <jib.version>$[jib.version]</jib.version>
+    <jib.container.image>$[jib.container.image]</jib.container.image>
+    <jib.app.port>8081</jib.app.port>
+    <jib.goal>buildTar</jib.goal>
   </properties>
 
   <modules>
     <module>api</module>
     <module>core</module>
-    #if ($earProjectName != '.')
+#if ($earProjectName != '.')
     <module>${earProjectName}</module>
-    #end
-    #if ($batch == 'batch')
+#end
+#if ($batch == 'batch')
     <module>batch</module>
-    #end
+#end
     <module>server</module>
   </modules>
 
@@ -328,6 +332,49 @@
   </build>
 
   <profiles>
+    <profile>
+      <id>release</id>
+      <properties>
+        <jib.goal>build</jib.goal>
+      </properties>
+    </profile>
+    <profile>
+      <id>container</id>
+      <activation>
+        <activeByDefault>true</activeByDefault>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>com.google.cloud.tools</groupId>
+            <artifactId>jib-maven-plugin</artifactId>
+            <version>${jib.version}</version>
+            <configuration>
+              <from>
+                <image>${jib.container.image}</image>
+              </from>
+              <to>
+                <image>${project.name}/java:${project.version}</image>
+              </to>
+              <container>
+                <mainClass>${package}.SpringBootApp</mainClass>
+                <ports>
+                  <port>${jib.app.port}</port>
+                </ports>
+              </container>
+            </configuration>
+            <executions>
+              <execution>
+                <phase>package</phase>
+                <goals>
+                  <goal>${jib.goal}</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
     <profile>
       <id>moduletest</id>
       <properties>

templates/server/src/main/resources/archetype-resources/server/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>${groupId}</groupId>
     <artifactId>${rootArtifactId}</artifactId>
-     <version>${app.version}</version>
+    <version>${app.version}</version>
   </parent>
   <artifactId>${rootArtifactId}-server</artifactId>
   <packaging>war</packaging>
@@ -145,8 +145,13 @@
           </execution>
         </executions>
       </plugin>
-
+      <plugin>
+        <groupId>com.google.cloud.tools</groupId>
+        <artifactId>jib-maven-plugin</artifactId>
+        <configuration>
+          <skip>true</skip>
+        </configuration>
+      </plugin>
     </plugins>
   </build>
-
 </project>