• Download the latest release from here
• un-compress the archive file
• cd octopus
• ./octopus.sh
• create system user from the octopus shell:

    ssh user@localhost -p 2000
    # enter password
    su -h # help for su command
    # example
    # su -m c -u system -p system -n system -e [email protected]
    # username: system password: system
  

• open app in browser and login with system user that you created in previous step.

  http://localhost:9090
  

• You can change the repository to use a different db by changing the parameters in application.properties
• Configure octopus.shell using the application.properties

• git clone https://github.com/bluecolor/octopus
• cd into cloned repo folder
• run ./build.sh
• check out the dist folder

• Run backend by;

  cd octopus/backend
  gradle bootrun

• Start a dev server for frontend with;

cd octopus/frontend
npm install
npm run dev

You can find more info here