Development

Practical Tekton

Sep 12, 2020 · 10 min read · Tekton Pipelines Development

Introduction This post gives an overview of Tekton based on my initial testing and exploration of the project within a RedHat OpenShift (Kubernetes) cluster (using v4.4 and v4.5) My goal was to explore the new technologies to see if I could simplify the developer experience for our developers and users. A simple task: …

Verifying TLS certificates in Python

Dec 3, 2015 · 1 min read · Python Security

All too often people I see Python code using the requests module to query an API that just bypass TLS verification (i.e it sets verify=False in the requests function calls). On RedHat Linux and derivatives, you can simply set this to verify=/etc/pki/tls/certs/ca-bundle.crt and your Python code will then automatically …

Generating a RPM changelog using git log

Nov 19, 2015 · 2 min read · Python Linux

I use python setuptools bdist_rpm to build RPMs from the code in my git repositories and today I updated my automated build script (a wrapper around python setup.py to run pre-requisite functions) to generate an RPM changelog from the git log of the repository hosting the package and then automatically include this in …

Recovering lost git commits (or undoing a git reset!)

Oct 28, 2015 · 2 min read · Git

We have recently recruited lots of new staff at the firm where I work and they are all learning git for the first time (and believe it or not, for many, it is their first experience of any VCS). I was surprised today when one of these new staff approached me because he had lost a couple of hours work! The remote HEAD …

Debugging Flask applications running under Apache mod_wsgi

Jul 21, 2015 · 1 min read · Python

I have recently been developing a new python web application that uses the Flask framework. Whilst running standalone, it was working fine. Then I went to setup the UAT environment which is running under Apache using mod_wsgi. I've done this many times before without any problems. However, this time I was getting a …

Writing OpenStack Hooks

Apr 23, 2015 · 4 min read · OpenStack Python

I've recently been writing OpenStack Nova hooks for integration of newly deployed OpenStack nova instances with our existing infrastructure systems. Though the OpenStack Developer Documentation is very good, there is not that much documentation out there on real world end-user experiences of writing nova hooks. In this …

Python Setuptools and Building RPMs with Dependencies.

Apr 7, 2015 · 2 min read · Python OpenStack

If you develop python modules for distribution, you likely use python setuptools. It's very useful and takes lots of the manual operations out of distributing python code and modules. I recently started going one step further and using the bdist_rpm setup.py command option to automatically build rpms for my python code …

Build a Python Version Agnostic RPM For Your Python Module

Apr 2, 2015 · 2 min read · Python

I often use the python setup.py bdist_rpm command on RHEL to build RPMs of the python modules I'm developing. This makes it easy for me to distribute my module via the yum repos internally at the company I work for. At my company, most of our production servers are currently RHEL 6, but we are starting to deploy RHEL …

Subversion and gnome-keyring-daemon

Oct 31, 2013 · 2 min read · Subversion

Subversion's "feature" to store repository passwords in plain text files is a little scary. In my opinion, even a minimal obfuscation routine in the svn client would be better than saving a user's clear text password in text files. I obviously do not want to store my password in clear, so up until now, I've …

My Subversion Repo Moved!

Sep 30, 2013 · 1 min read · Development

Well, it didn't strictly move anywhere but my broadband IP address changed after re-DHCP. I used to use no-ip.com, but then I no longer really host anything on my home network, so I figured could save myself 20 bucks as I didn't think I needed it anymore. Then I went to check in some old code to an old svn repo (that's …