Maven private remote repository setup

Question

I\'m trying to set up a private remote repository for our team. Now the repository serves the following with so far I have tried -

• When a \'mvn comp

Answer 1

Sonatype Nexus does everything you want, needs very little configuration for what you're asking, and has a nice interface. There's some details on the basic setup under the question "Maven Internal Repository, Is it Really This Hard?"

Basically, you can set up Nexus as a caching repository: your Maven client will only visit the internal repository. When the internal repository can't find an artifact, it goes to Central (or any other external repositories you define), fetches it for you, and stores it for later.

This is cool because if you want to transition from a grab-whatever-dependencies-you-want free-for-all to a locked-down environment, Nexus makes it easy. You set it up to pull from Central, run your build from a clean machine (forcing Nexus to ingest all the current Central dependencies) and then turn off the proxy-repo feature (so any new/changed dependencies will be managed by devops).

Answer 2

What you've described is pretty much the default configuration of most repository managers, including Archiva. Does the following help in getting it set up to use from Maven?

http://archiva.apache.org/docs/1.3.6/userguide/using-repository.html

Answer 3

I have setup nexus for mirroring my maven local repository (at ~/.m2/repository.) Since this post is still visited by a lot of people, I think it would be helpful for others if I share how I configured nexus as a repository manager. This procedure works perfectly for me in Ubuntu 12.04. Here it is -

1. Download nexus-2.11.1-01-bundle.tar.gz or latest version of nexus oss.

2. Extract the tar file in you home directory-

$ tar -xvf nexus-2.11.1-01-bundle.tar.gz

Now you will get two directories - nexus-2.11.1-01 and sonatype-work in your home directory.

3. Copy these two directories to /usr/local/ directory (they can be copied to other place) -

$ cp -r nexus-2.11.1-01 /usr/local/
$ cp -r sonatype-work /usr/local/

The executable/configuration files related to nexus are stored in nexus-2.11.1-01 directory and the jar file mentioned in pom.xml are stored in sonatype-work directory.
These jar files are mirror of your ~/.m2/repository. First time you issue a mvn package command then all the jars are stored here. After then when you issue mvn package again then all jars are downloaded from the nexus repository instead of downloading from the central repository.

4. Go to the /usr/local/ directory -

$ cd /usr/local/  

5. Create a link to nexus-2.11.1-01 -

$ sudo ln -s nexus-2.7.0-06 nexus

6. Now to run nexus type the following in terminal -

$ bash nexus/bin/nexus console  

Here nexus is attached with your console. If you close your console then the nexus server will be terminated. When you are trying to run nexus for a Ubuntu server machine then you may use screen.

Note: While trying to run nexus by using the command above there may occur 2 problems. If you do not found any problem then skip next 2 steps (step - 7 and 8)

7. First problem may occur due to insufficient permission. Read the error message and take necessary steps. But as a quick solution you may do this -

$ sudo chmod -R 777 nexus-2.11.1-01/
$ sudo chmod -R 777 sonatype-work/

8. If you are using any jdk version lower than java 7 than the following error message may be shown -

wrapper | Launching a JVM... wrapper | JVM exited while loading the application. jvm 1 | Exception in thread "main" java.lang.UnsupportedClassVersionError: org/sonatype/nexus/bootstrap/jsw/JswLauncher : Unsupported major.minor version 51.0

In this case use jdk7 to run the command mentioned in step 6. In ubuntu its pretty easy. Assuming you have two jdk - jdk6 and jdk7. Your project runs on jdk6. Then only for running nexus you may do this from your terminal (assuming your jdk7 in /usr/lib/jvm/jdk1.7.0_45 directory) -

$ export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_45
$ export PATH=$JAVA_HOME/bin:$PATH  

9. Now in browser type the address - http://localhost:8081/nexus/. If step 1 to 6 (if errors occurred then step 1 to 8) are done perfectly you may successfully find the login screen. The default login user name is - admin and password is - admin123

10. Stop nexus. Just close the terminal or press Ctrl+C at step 6's terminal. In you ~/.m2 directory create an empty file named - settings.xml. Copy the following content into this settings.xml file -

<settings>
    <mirrors>
        <mirror>
        <!--This sends everything else to /public -->
            <id>nexus</id>
            <mirrorOf>*</mirrorOf>
            <url>http://localhost:8081/nexus/content/groups/public</url>
        </mirror>
    </mirrors>

    <profiles>
        <profile>
            <id>nexus</id>
            <!--Enable snapshots for the built in central repo to direct -->
            <!--all requests to nexus via the mirror -->
            <repositories>
                <repository>
                <id>central</id>
                <url>http://central</url>
                <releases><enabled>true</enabled></releases>
                <snapshots><enabled>true</enabled></snapshots>
                </repository>
            </repositories>

            <pluginRepositories>
                <pluginRepository>
                    <id>central</id>
                    <url>http://central</url>
                    <releases><enabled>true</enabled></releases>
                    <snapshots><enabled>true</enabled></snapshots>
                </pluginRepository>
            </pluginRepositories>
        </profile>
    </profiles>

    <activeProfiles>
    <!--make the profile active all the time -->
        <activeProfile>nexus</activeProfile>
    </activeProfiles>
</settings>

11. And add these following lines in your project's pom.xml file -

<distributionManagement>
    <snapshotRepository>
        <id>my-snapshots</id>
        <name>My internal repository</name>
        <url>http://localhost:8081/nexus/content/repositories/snapshots</url>
    </snapshotRepository>

    <repository>
        <id>my-releases</id>
        <name>My internal repository</name>
        <url>http://localhost:8081/nexus/content/repositories/releases</url>
    </repository>
</distributionManagement>