Preparation for Use, Client Installation

To create/edit/use Kubernetes in vCloud Director, you need to use the CSE client, which operates on top of the VCD-CLI client. The client can be installed on any workstation as long as it has access to your vCloud networks. For example, you can create a server in your vCD or connect via VPN to your vCD.

The CSE client requires Python version 3.7.3 or higher (!) – this is crucial, otherwise, the installation will fail.

Many users encounter difficulties installing Python 3.7, so below we provide an example of how to install Python 3.7.4 on CentOS 7:

At the time of writing, Python 3.7 is not available in official repositories, so it must be compiled manually.

Installing required components for Python

# yum install gcc openssl-devel bzip2-devel libffi-devel sqlite-devel

Download and Extract the Python Distribution from the Official Website

# cd /usr/src  
# wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tgz  
# tar xzf Python-3.7.4.tgz

Installation

# cd Python-3.7.4  
# ./configure --enable-optimizations  
# make altinstall

After Successful Installation, Verify the New Python and pip3 Versions

# python3.7 --version  
Python 3.7.4  
# pip3.7 --version  
pip 19.3.1 from /usr/local/lib/python3.7/site-packages/pip (python 3.7)

Python 3.7 installation is now complete.

Next, you can proceed with installing the VCD-CLI and CSE clients:

Installing VCD-CLI and CSE

1. # pip3.7 install vcd-cli  
2. # pip3.7 install container-service-extension

Verify that the clients are installed correctly (if successful, you should see their versions)

# vcd version  
# cse version

Connecting CSE to VCD-CLI

To do this, you need to log in to vCloud via VCD-CLI:

# vcd login vcd.cloud4u.com (tenant_name) (user_name)  
Password:  
user_name logged in, org: 'tenant_name', vdc: 'name_VDC'

After the first login, a configuration file should be generated at ~/.vcd-cli/profiles.yaml

Edit it and add the following lines at the end:

# vim ~/.vcd-cli/profiles.yaml

Add these lines at the end and save:

extensions:  
  - container_service_extension.client.cse

Verify the CSE Version via VCD-CLI

If successful, you should see the CSE version:

# vcd cse version

Client installation is now complete. You can proceed to cluster creation.

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