DataScience Install Tangelo Girder Girder Worker

Tangelo (from the resonant kit) is a tool that provides the web interface to REST Webservices and allows us to create the REST Webservices in easier manner. It also supports the plugin management, workflow management and many more features. You can refer to the detail of Tangelo in its home page at Tangelo Docs

Tangelo installation:

1. Install software dependencies

Install the following software:

• Python 2.7
• Pip

On Linux and OS X computers, your local package manager should be sufficient for installing these. On Windows, please consult this guide for advice about Python and Pip.

2. Install the Tangelo Python package

Use this command in a shell to install the Tangelo package and its dependencies:

pip install tangelo

Girder Server installation

Girder server provides many more features including the distributed data management, data authentication, authorization, Webservices and many more. You can refer to the home page of Grider (Girder Docs) for the details.

If you are using Ubuntu, you can install the prerequisite using the following command:

sudo apt-get install curl g++ git libffi-dev make python-dev python-pip libjpeg-dev zlib1g-dev

For other platforms, refer to the Girder home page (Girder Docs)

Its good idea to create a separate environment so that we don't mess up with our existing python packages. We can create a separate environment using the following commands:

sudo pip install -U virtualenv pip

The aboe command installs the virtualenv package. The following command creates the "girder_env" environment for our girder installation. 

virtualenv ~/girder_env

 To install the girder use the following command:

pip install girder

To install the girder web use the following command:

girder-install web 

Run Girder

To run the server, first make sure the Mongo daemon is running. To manually start it, run:

mongod &

If you installed with pip, you will have the girder-server executable on your path and can simply call

girder-server

Girder Worker Installation 

The girder worker allows use to create small worker (tasks) that can be orchestrated using the grider worker (workflow). We can define the chain of such tasks to create a workflow that can execute in serial manner. The output of one of the tasks can be fed to another task in the chain or workflow. For more detail, please refer to the home page of girder worker at Girder Worker Docs

The following command installs the prerequisite packages:

# Command for Ubuntu   

sudo apt-get install libjpeg-dev zlib1g-dev

The easiest way is to install girder worker using pip command:

pip install girder-worker

Its better to have these packages installed in a single environment so that they can be integrated easily.

In the future posts, I will explain how to integrate these tools to create a working web application.

Thanks.

References:

1. Tangelo (Tangelo Docs)
2. Girder (Girder Docs)
3. GirderWorker (Girder Worker Docs)