demomon / cnab-duffle-demo-1

CNAB Duffle Demo 1

This is demo for creating a CNAB bundle with Duffle.

Build the packages

Basics

• create a new repo
• clone the repo
• init a duffle bundle
• copy duffle bundle data to our repo folder

Build

duffle build .

Confirm

We can read our bundle information via the duffle show command.

duffle show cnab-duffle-demo-1:1.0.0 -r

Or we can list all of our bundles, to see if it was successfully added.

duffle bundle list

Which should result into something like below.

NAME              	VERSION	DIGEST                                  	SIGNED?
cnab-duffle-demo-1	1.0.0  	7951eaa84bff2679dc2f8b98ba3a6f7ec705d658	true
helloworld        	0.1.0  	947282206c8027106c8c33098203ae30034da415	true

Install

duffle install demo1 cnab-duffle-demo-1:0.1.0

It will say the following: Error: bundle requires credential for kubeconfig

Let's setup our credentials, see below how.

Assuming you've done so, we can now try to install again, this time referencing our credentials configuration with -c demo.

duffle install demo1 cnab-duffle-demo-1:0.1.0 -c demo1

Credentials

As this demo requires the ability to issue kubectl commands to a Kubernetes Cluster, we need a working kubeconfig.

To do so, we have to configure duffle to use a kubeconfig credential.

Define Kubeconfig credential

"credentials": {
    "kubeconfig": {
        "path": "/root/.kube/config"
    }
}

Generating credentials

The following will create a new credentials file for our bundle (cnab-duffle-demo-1) with the name demo1.

duffle creds generate demo1 cnab-duffle-demo-1

Then, select the file path option in the "dropdown".