howto

If you’re a heavy user of docker you’ll for sure have a lot of trash in your /var/lib/docker

Check for your self:

sudo du -sh /var/lib/docker

To clean it, follow these simple steps (DISCLAIMER, This will stop and remove all the current containers):

1. Remove the containers (and stopped too)

docker ps -a -q | xargs docker rm -f

2. Remove all downloaded and build images

docker image ls -q |  xargs docker image rm -f

3. Remove all volumes

docker volume ls -q | xargs docker volume rm -f

Some months ago I created a small workshop about kubernetes and Rancher for the my QA SUSE team. Now I would like to share this presentation.

Kubernetes

Rancher

Show how JQ could be used to query a JSON with a lot of possibilities. For these examples I am using the output derived from a openQA API query.

openqa-cli api --host http://openqa.suse.de /jobs limit=5000 result="failed" latest=1 >output.failed.json

To know more about API query, please visit Cris’ tutorial

JQ is huge, so I am only explaining some useful examples derived from some tickets when I was working in openQA and tools team at SUSE. To know more about JQ please visit https://stedolan.github.io/jq/

openQA provides different scripts and a CLI command line application to interact with it. For instance:

• cloning a job with clone_job
• cloning a job from using a test from a git repository
• Accessing to the API using the openqa-cli

But it is necessary to install openqa-devel packages to use this.

The proposal I share here is to use the power of containers to use these scripts without installing anything.

On 20 of January of 2021 I prepared a workshop for my team colleges at SUSE about React JS. The objective was to introduce React JS and how to use this in single page webs. We were NOT using in these examples node JS but a simple HTML that any browser could open and execute.

For thas workshop I prepared a presentation and some examples

• Presentation
• Examples