Installing JHipster

Installation types

We provide 3 ways of working with JHipster:

• A "local installation", which is the classical way of working with JHipster. Everything is installed on your machine, which can be a little complex to set up, but that's how most people usually work. In case of doubt, choose this installation.
• A Vagrant-based "development box", with all tools aleady set up in a Ubuntu-based virtual machine.
• A "Docker" container, which brings you a lightweight, virtualized container with JHipster installed.

Local installation (recommended for normal users)

1. Install Java from the Oracle website.
2. (Optional) Install a Java build tool.
   • Whether you choose to use Maven or Gradle, you normally don't have to install anything, as JHipster will automatically install the Maven Wrapper or the Gradle Wrapper for you.
   • If you don't want to use those wrappers, go to the official Maven webiste or Gradle website to do your own installation.
3. Install Git from git-scm.com. We recommend you also use a tool like SourceTree if you are starting with Git.
4. Install Node.js from the Node.js website. This will also install npm, which is the node package manager we are using in the next commands.
5. Install Yeoman: npm install -g yo
6. Install Bower: npm install -g bower
7. Depending on your preferences, install either Grunt (recommended) with npm install -g grunt-cli or Gulp.js with npm install -g gulp.
8. Install JHipster: npm install -g generator-jhipster

To find more information, tips and help, please have a look at the Yeoman "getting starting" guide and at the NPM documentation before submitting a bug.

Vagrant box installation

The JHipster development box project gives you a virtual machine with all the necessary tools to develop your JHipster project.

Besides JHipster, this virtual machine includes many development tools like the Spring Tool Suite, the Atom text editor and MySQL Workbench.

Please go to the JHipster development box page for installation and configuration information.

Docker installation (for advanced users only)

Information

JHipster has a specific jhipster-docker project, which provides a Docker container.

This project makes a Docker "Trusted build" that is available on:

https://hub.docker.com/r/jdubois/jhipster-docker/

This image will allow you to run JHipster inside Docker.

Prerequisites

This depends on your operating system.

1. Linux: Linux supports Docker out-of-box. You just need to follow the tutorial on the Docker website.
2. Mac & Windows: install the Docker Toolbox to get Docker installed easily.

Usage on Linux/Mac Windows (using Docker Toolbox)

Pull the image

Pull the JHipster Docker image:

docker pull jdubois/jhipster-docker

Run the image

Create a "jhipster" folder in your home directory:

mkdir ~/jhipster

Run the Docker image, with the following options:

• The Docker "/home/jhipster/app" folder is shared to the local "~/jhipster" folder
• Forward all ports exposed by Docker (8080 for Tomcat, 3000 for BrowserSync from the "gulp serve" task, 3001 for the BrowserSync UI)

docker run --name jhipster -w /home/jhipster/app -v ~/jhipster:/home/jhipster/app:rw -v ~/.m2:/home/jhipster/.m2:rw -p 8080:8080 -p 3000:3000 -p 3001:3001 -d -t jdubois/jhipster-docker

Check if the container is running

To check that your container is running, use the command docker ps:

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4ae16c0539a3 jdubois/jhipster-docker "tail -f /home/jhipst" 4 seconds ago Up 3 seconds 0.0.0.0:3000-3001->3000-3001/tcp, 0.0.0.0:8080->8080/tcp jhipster

Common operations

• To stop the container execute: docker stop jhipster
• And to start again, execute: docker start jhipster

In case you update the Docker image (rebuild or pull from the Docker hub), it's better to remove the existing container, and run the container all over again. To do so, first stop the container, remove it and then run it again:

1. docker stop jhipster
2. docker rm jhipster
3. docker pull jdubois/jhipster-docker
4. docker run --name jhipster -w /home/jhipster/app -v ~/jhipster:/home/jhipster/app:rw -v ~/.m2:/home/jhipster/.m2:rw -p 8080:8080 -p 3000:3000 -p 3001:3001 -d -t jdubois/jhipster-docker

On Linux, you might need to run the docker command as root user if your user is not part of docker group. It's a good idea to add your user to docker group so that you can run docker commands as a non-root user. Follow the steps on http://askubuntu.com/a/477554 to do so.

Accessing the container

The easiest way to log into container is by executing following command:

docker exec -it --user=jhipster <container_name> bash

if you copy-pasted command to run container from above, notice the name being specified as jhipster

docker exec -it --user=jhipster jhipster bash

You will login as "jhipster" user. In case you need to do a sudo, password for the user is the same as the username (jhipster).

Your first project

You can then go to the /home/jhipster/app directory in your container, and start building your app inside Docker:

cd /home/jhipster/app
yo jhipster

Once your application is created, you can run all the normal grunt/bower/maven commands, for example:

mvn

Congratulations! You've launched your JHipster app inside Docker!

On your host machine, you should be able to :

• Access the running application at http://DOCKER_HOST_IP:8080
• Get all the generated files inside your shared folder

Please note: based on your OS your DOCKER_HOST_IP will differ. On Linux, it will be simply your localhost. For Mac/Windows, you will have to obtain the IP using following command: docker-machine ip default

As the generated files are in your shared folder, they will not be deleted if you stop your Docker container. However, if you don't want Docker to keep downloading all the Maven and NPM dependencies every time you start the container, you should commit its state.