Merge pull request fabric8io#62 from krystiannowak/krystiannowak/remo…

…ve-image

fabric8io#47 - removeImage Mojo added

README.md

@@ -109,6 +109,10 @@ will need to do this binding so the image gets built when maven is run from the
       </executions>
     </plugin>
 
+To remove the image named `foobar` run the following command:
+
+	mvn docker:removeImage -DimageName=foobar
+
 For a complete list of configuration options run:
 `mvn com.spotify:docker-maven-plugin:<version>:help -Ddetail=true`
 

src/main/java/com/spotify/docker/RemoveImageMojo.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2014 Spotify AB.
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package com.spotify.docker;
+
+import java.io.IOException;
+
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
+
+import com.spotify.docker.client.DockerClient;
+import com.spotify.docker.client.DockerException;
+import com.spotify.docker.client.DockerRequestException;
+import com.spotify.docker.client.shaded.javax.ws.rs.NotFoundException;
+
+/**
+ * Removes a docker image.
+ */
+@Mojo(name = "removeImage")
+public class RemoveImageMojo extends AbstractDockerMojo {
+
+    /** Name of image to remove. */
+    @Parameter(property = "imageName", required = true)
+    private String imageName;
+
+    protected void execute(DockerClient docker)
+            throws MojoExecutionException, DockerException, IOException, InterruptedException {
+
+        getLog().info("Removing -f " + imageName);
+
+        try {
+            // force the image to be removed but don't remove untagged parents 
+            docker.removeImage(imageName, true, false);
+        } catch (DockerRequestException e) {
+            // ignoring 404 errors only
+            if (e.getCause() != null && NotFoundException.class.equals(e.getCause().getClass())) {
+                getLog().warn("Image " + imageName +
+                        " does not exist and cannot be deleted - ignoring");
+            } else {
+                throw e;
+            }
+        }
+    }
+}

src/test/java/com/spotify/docker/RemoveImageMojoTest.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2014 Spotify AB.
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package com.spotify.docker;
+
+import com.spotify.docker.client.DockerClient;
+
+import org.apache.maven.plugin.testing.AbstractMojoTestCase;
+
+import java.io.File;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+public class RemoveImageMojoTest extends AbstractMojoTestCase {
+
+    public void testRemoveImage() throws Exception {
+        final File pom = getTestFile("src/test/resources/pom-removeImage.xml");
+        assertNotNull("Null pom.xml", pom);
+        assertTrue("pom.xml does not exist", pom.exists());
+
+        final RemoveImageMojo mojo = (RemoveImageMojo) lookupMojo("removeImage", pom);
+        assertNotNull(mojo);
+        final DockerClient docker = mock(DockerClient.class);
+        mojo.execute(docker);
+        verify(docker).removeImage("imageToRemove", true, false);
+    }
+
+}

src/test/resources/pom-removeImage.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <name>Docker Maven Plugin Test Pom</name>
+    <groupId>com.spotify</groupId>
+    <artifactId>docker-maven-plugin-test</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>15.0</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>com.spotify</groupId>
+                <artifactId>docker-maven-plugin</artifactId>
+                <version>0.1-SNAPSHOT</version>
+                <configuration>
+                    <dockerHost>http://host:2375</dockerHost>
+                    <imageName>imageToRemove</imageName>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>2.5.1</version>
+                <configuration>
+                    <source>1.7</source>
+                    <target>1.7</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>