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

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 -

    
        
        
            nexus
            *
            http://localhost:8081/nexus/content/groups/public
        
    

    
        
            nexus
            
            
            
                
                central
                http://central
                true
                true
                
            

            
                
                    central
                    http://central
                    true
                    true
                
            
        
    

    
    
        nexus
    

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

    
        my-snapshots
        My internal repository
        http://localhost:8081/nexus/content/repositories/snapshots
    

    
        my-releases
        My internal repository
        http://localhost:8081/nexus/content/repositories/releases