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When I'm working with the Machine Config Operator (MCO) in OpenShift, and frequently typing oc describe mcp and oc get mcp, I'm often reminded of the MCP (Machine Control Program) in the film Tron. I like the idea behind the MCO, and when it's working it's great, but perhaps this association in my mind is not only …
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Of course, this really shouldn't happen right? You're a responsible IT professional, and your OpenShift cluster is configured with multiple authentication methods, and a secure backup of a kubeconfig file with the system:admin user certificates for passwordless login? Except sometimes it does. In my day job, we have a …
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To anybody who has ever used containers, Alpine is a well known base operating system layer to many popular and widely used container images in use today. By design, it's a cut down minimal OS layer using the excellent busybox and musl libc C library. By using these alternatives to GNU Coreutils and GNU glibc C …
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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: …
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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 …
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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 …
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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 …
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By default, a new Fedora installation or a fedup upgrade on my dual monitor machine will result in GDM displaying the list of users and login screen on my left hand monitor. But I want it on my right hand monitor... Up until now, I simply logged in and set up the configuration I wanted using Settings -> Displays. …
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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 …
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There are many different file formats and file extensions for storing certificates. It seems each time I come around to renewing a cert, I have forgetten what all the files and extensions mean. So for next time... Certificates are generally encoded in either Base64, PEM, or DEM formats. Base64 (.cer) Originally …
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