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Add environment variable when starting containers.
This env variable WHALE_DMP_LABEL is used to mark containers to belong to a certain build so that can be recognized when calling 'docker:stop' #87
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102 changes: 102 additions & 0 deletions
102
src/main/java/org/jolokia/docker/maven/util/ContainerLabel.java
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| @@ -0,0 +1,102 @@ | ||
| package org.jolokia.docker.maven.util;/* | ||
| * | ||
| * Copyright 2014 Roland Huss | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
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| import java.util.UUID; | ||
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| /** | ||
| * Label used to mark a container belonging to a certain build. | ||
| * | ||
| * @author roland | ||
| * @since 31/03/15 | ||
| */ | ||
| public class ContainerLabel { | ||
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| private String mavenCoordinates; | ||
| private String runId; | ||
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| // Environment variable used to label containers | ||
| public static final String CONTAINER_LABEL_NAME = "docker.maven.plugin.container"; | ||
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| /** | ||
| * Construct from a given label | ||
| * | ||
| * @param label label as stored with the container | ||
| */ | ||
| public ContainerLabel(String label) { | ||
| String[] parts = label.split(":"); | ||
| if (parts.length != 4 && parts.length != 3) { | ||
| throw new IllegalArgumentException("Label '" + label + | ||
| "' has not the format <group>:<artifact>:<version>[:<runId>]"); | ||
| } | ||
| mavenCoordinates = parts[0] + ":" + parts[1] + ":" + parts[2]; | ||
| runId = parts.length == 4 ? parts[3] : null; | ||
| } | ||
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| /** | ||
| * Construct from maven coordinates. A random run-ID is created automatically. | ||
| * @param groupId Maven group | ||
| * @param artifactId Maven artifact | ||
| * @param version version | ||
| */ | ||
| public ContainerLabel(String groupId, String artifactId, String version) { | ||
| this(groupId, artifactId, version, UUID.randomUUID().toString()); | ||
| } | ||
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| /** | ||
| * Construct from maven coordinates and run ID. If the runId is <code>null</code> this label | ||
| * will. | ||
| * | ||
| * @param groupId Maven group | ||
| * @param artifactId Maven artifact | ||
| * @param version version | ||
| * @param runId a run id or <code>null</code>. | ||
| */ | ||
| public ContainerLabel(String groupId, String artifactId, String version, String runId) { | ||
| mavenCoordinates = groupId + ":" + artifactId + ":" + version; | ||
| this.runId = runId; | ||
| } | ||
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| /** | ||
| * Get this label in string representation | ||
| * @return this label as string | ||
| */ | ||
| public String toString() { | ||
| return mavenCoordinates + (runId != null ? ":" + runId : ""); | ||
| } | ||
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| /** | ||
| * Check whether this label matches another. For a match the maven coordinates must fit and if this | ||
| * runId is set, the runId must match, too. | ||
| * | ||
| * @param other label to match | ||
| * @return true for a match | ||
| */ | ||
| public boolean matches(ContainerLabel other) { | ||
| return other.mavenCoordinates.equals(mavenCoordinates) && | ||
| (runId == null || runId.equals(other.runId)); | ||
| } | ||
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| /** | ||
| * Get the label name | ||
| * | ||
| * @return the label name to use to mark a container belonging to this build | ||
| */ | ||
| public String getName() { | ||
| return "docker.maven.plugin.container"; | ||
| } | ||
| } |
87 changes: 87 additions & 0 deletions
87
src/test/java/org/jolokia/docker/maven/util/ContainerLabelTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| package org.jolokia.docker.maven.util; | ||
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| import org.junit.Test; | ||
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| import static org.junit.Assert.*; | ||
| /* | ||
| * | ||
| * Copyright 2014 Roland Huss | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
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| /** | ||
| * @author roland | ||
| * @since 31/03/15 | ||
| */ | ||
| public class ContainerLabelTest { | ||
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| String g = "org.jolokia"; | ||
| String a = "demo"; | ||
| String v = "0.0.1"; | ||
| String coord = g + ":" + a + ":" + v; | ||
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| @Test | ||
| public void simple() throws Exception { | ||
| ContainerLabel label = new ContainerLabel(g,a,v); | ||
| assertTrue(label.toString().startsWith(coord)); | ||
| assertTrue(label.toString().length() > coord.length()); | ||
| } | ||
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| @Test | ||
| public void withNullRunId() { | ||
| ContainerLabel label = new ContainerLabel(g,a,v,null); | ||
| assertEquals(label.toString(), coord); | ||
| } | ||
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| @Test | ||
| public void withRunId() { | ||
| ContainerLabel label = new ContainerLabel(g,a,v,"blub"); | ||
| assertEquals(label.toString(),coord + ":blub"); | ||
| } | ||
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| @Test | ||
| public void matchesAll() throws Exception { | ||
| ContainerLabel label = new ContainerLabel(g, a, v,null); | ||
| assertTrue(label.matches(new ContainerLabel(g, a, v))); | ||
| } | ||
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| @Test | ||
| public void dontMatch() { | ||
| ContainerLabel label = new ContainerLabel(g, a, v); | ||
| assertFalse(label.matches(new ContainerLabel(g, a, v))); | ||
| } | ||
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| @Test | ||
| public void match() { | ||
| ContainerLabel label = new ContainerLabel(g, a, v, "bla"); | ||
| assertTrue(label.matches(new ContainerLabel(g, a, v, "bla"))); | ||
| } | ||
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| @Test | ||
| public void parse() { | ||
| ContainerLabel label = new ContainerLabel(coord); | ||
| assertEquals(coord, label.toString()); | ||
| } | ||
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| @Test | ||
| public void parse2() { | ||
| ContainerLabel label = new ContainerLabel(coord + ":blub"); | ||
| assertEquals(coord + ":blub",label.toString()); | ||
| } | ||
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| @Test(expected = IllegalArgumentException.class) | ||
| public void invalid() { | ||
| new ContainerLabel("bla"); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,4 @@ | ||
| { | ||
| "Env": ["foo=bar"], | ||
| "User": "user", | ||
| "Entrypoint": [ "entrypoint" ], | ||
| "Memory": 1, | ||
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