Install Eclipse-Che on Ubuntu server

Install jdk1.8+ & set JAVA_HOME

Install Docker

$ which curl
$ sudo apt-get update
$ sudo apt-get install curl
$ curl -sSL https://get.docker.com/ | sh

If you would like to use Docker as a non-root user, you should now consider
adding your user to the "docker" group with something like:

$ sudo usermod -aG docker serveradmin

Remember that you will have to log out and back in for this to take effect!

Verify docker is installed correctly

$ docker run hello-world
or
$ sudo docker run hello-world

This command downloads a test image and runs it in a container.

Download eclipse-che installation jar

The reason why I download the installation jar (JAR Universal Extractor) instead of directly use docker image with following command is that way isn't work for me. It's always showing some error.

$ docker run -it -p 1104:8080 codenvy/che

Install eclipse-che

$ sudo mkdir /usr/local/eclipse-che-4.0.0-RC3
$ sudo chown -R serveradmin:serveradmin /usr/local/eclipse-che-4.0.0-RC3
$ java -jar eclipse-che-latest.jar 

You should select "/usr/local/eclipse-che-4.0.0-RC3" as target installation dir.

Add execute permisson to TOMCAT script

$ cd /usr/local/eclipse-che-4.0.0-RC3/tomcat/bin
$ chmod +x *.sh

Set CHE_HOME

$ vi ~/.bashrc

Add the line to it

export CHE_HOME=/usr/local/eclipse-che-4.0.0-RC3

Reload

$ source ~/.bashrc

Create link to /usr/bin

$ sudo ln -s /usr/local/eclipse-che-4.0.0-RC3/bin/che.sh /usr/bin/che

Now,you can start Eclipse-Che by

$ che start

• Get current running class dir path

String jarOrBuildClassDir = getClass().getProtectionDomain().getCodeSource().getLocation().getPath();

It will return 'build/classes/main' if you run it on IDE

/Users/demo/workspace/MyDemo/build/classes/main/

It will return the location of 'jar' file which the class archived if you run it in a jar file

/Users/demo/workspace/MyDemo/install/MyDemo/lib/MyDemo.jar

• Get special resources file path that copy from 'src/main/java/resources/com/demo/test.xsl'

URL xslFileURL = getClass().getResource("/com/demo/test.xsl")

It will return 'build/resources/main' if you run it on IDE

/Users/demo/workspace/MyDemo/build/resources/main/com/demo/test.xsl

It will return the location of 'jar' file which the class archived if you run it in a jar file

file:/Users/demo/workspace/MyDemo/install/MyDemo/lib/MyDemo.jar!/com/demo/test.xsl