Querying OpenShift API
OpenShift offers REST API to obtain information about mostly all aspects of the OpenShift instance. As the OpenShift is "an extension" on top of the Kubernetes there are two stable REST APIs base urls. First…
Chalda's blog
Docker basics
There are many articles on how to start and use docker. This one is a meant rather as my personal (hopefully complementary) notes. See these nice articles for example: http://blog.codepipes.com/containers/docker-for-java-big-picture.…
Maven plugin and fight with classloading
I wanted to write a Maven plugin with no experience on it. This is a short summary on my takeaways. As first step I would recommend Maven Apache documentation short tutorial at https://maven.apache.…
How to work with a docker image to Minishift repository
this is a bit follow-up article to http://blog.chalda.cz/2017/12/15/Docker-tags-and-registries.html Minishift is a "small version" of OpenShift where all the deployment setup is done as part of a virtual…
Docker tags and registries
As a newcomer to the world of Docker and I struggle a bit with basic concepts. Here, I would like to summarize my observation about Docker tagging and repositories. If you build a Dockerfile (docker…
Starting Minishift without internet connection
The Minishift is an tool which provides an easy way to run OpenShift locally on developer’s machine. Minishift uses an hypervisor to start a virtual machine where the whole OpenShift environment is set…
Set up HAProxy to balance by HTTP header balancing
I started to experiment with HAProxy where these are few notes on how to start with. I wanted to have HAProxy as a standalone program and not installed into my Linux machine with package system.…
Groovy and XML
Manipulating with XML in some easy way is part of my journey to get an easy way to change WildFly standalone.xml. Use of the Groovy and its tools came to me with tool Creaper…
Listing WFLY domain with Groovy
Groovy connects with WFLY cli Starting groovysh with jboss cli jar on classpath could be done in the following way export JBOSS_HOME=$PWD groovysh -cp $JBOSS_HOME/bin/client/jboss-cli-client.jar To connect with…
Augeas and XML
Augeas… what? The name Augeas is based on greek legend about Herakles who has to clean stables of the king Augeas from dung as one of his twelve laubours that he has to…