How to create own Maven Repository? - maven

Question

I want to know, how to create my own dependency to use my code in other projects.
I were following tutorial.
I`ve tried to create project with simple class as Maven Project.
I did clean-package. Created github repository. Added my project there with "target" package.
in pom.xml i added
<properties>
<java.version>1.8</java.version>
<github.global.server>github</github.global.server>
<github.maven-plugin>0.12</github.maven-plugin>
</properties>
<distributionManagement>
<repository>
<id>internal.repo</id>
<name>Temporary Staging Repository</name>
<url>file://${project.build.directory}/mvn-repo</url>
</repository>
</distributionManagement>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.1</version>
<configuration>
<altDeploymentRepository>internal.repo::default::file://${project.build.directory}/mvn-repo</altDeploymentRepository>
</configuration>
</plugin>
<plugin>
<groupId>com.github.github</groupId>
<artifactId>site-maven-plugin</artifactId>
<version>${github.maven-plugin}</version>
<configuration>
<message>Maven artifacts for ${project.version}</message>
<noJekyll>true</noJekyll>
<outputDirectory>${project.build.directory}/mvn-repo</outputDirectory>
<branch>refs/heads/mvn-repo</branch>
<includes><include>**/*</include></includes>
<repositoryName>GITHUB_NAME_REPOSITORY</repositoryName>
<repositoryOwner>MY_GITHUB_NICKNAME</repositoryOwner>
</configuration>
<executions>
<execution>
<goals>
<goal>site</goal>
</goals>
<phase>deploy</phase>
</execution>
</executions>
</plugin>
</plugins>
</build>
after in root of .m2 directory i created settings.xml with:
<settings>
<servers>
<server>
<id>github</id>
<username>[username]</username>
<password>[password]</password>
</server>
</servers>
</settings>
did again clean+package and pushed to github.
after trying to use dependency - not found.
in github repo no mvn-repo branch

Answer 1

I haven't used the new GitHub repositories yet, but what work quite well so far:
private, single machine usage: mvn install -> the artifact will be installed in your local Maven repository and can be referenced by any other project on the same machine
Open Source, multiple machines/ developers: mvn deploy to Maven Central. See the documentation for more information about configuration and involved steps.
Closed Source, multiple machines/ developers: mvn deploy to your own Maven Repository manager such as Nexus (configure the distributionManagement accordingly)
That said, it's a best practice to use your own Maven Repository Manager in all 3 cases and define a single group.
From the Maven default lifecycle documentation:
package: take the compiled code and package it in its distributable format, such as a JAR.
install: install the package into the local repository, for use as a dependency in other projects locally.
deploy: done in an integration or release environment, copies the final package to the remote repository for sharing with other developers and projects.