I am Nicolas Massé, you will find me on social networks under the nickname “nmasse-itix”. Initially developer, I now work as pre-sales consultant in the fields of API Management, Single Sign On and Containers.
I mainly work with Open Source technologies such as Keycloak, 3scale or OpenShift. I share my expertise and interests on this site, as a guest on other websites and I occasionally give conferences.
Please read my blog or learn more about me.
In 2022, I wrote an article on this subject named “Build multi-architecture container images with Kubernetes, Buildah, Tekton and Qemu”. The article described the configuration I had set up for my personal projects. It even went beyond its initial purpose as it has also been used by several colleagues at Red Hat who had the same need. While the configuration described in this previous article is still relevant, the approach is somewhat dated. With the increasing availability of ARM servers in the Cloud, I revisited the topic of building multi-architecture container images using the AWS cloud. Continue reading
ARM servers are becoming mainstream (Ampere Altra server, Raspberry Pi SoC, etc.) and people start using them with containers and Kubernetes. While official Docker Hub images are built for all major architectures, the situation is less clear for other Open Source projects. It is possible to acquire an ARM server and use it to build container images, but it puts an additional constraint on the Continuous Integration chain. This article explores another option: build ARM container images on a regular x86 server, using Kubernetes, Buildah, Tekton and Qemu. Continue reading
In the past years, I spent time (maybe too much) designing and implementing CI/CD pipelines around 3scale. This led to the birth of the threescale_cicd ansible role. I also helped on the design of the 3scale_toolbox and crafted a Jenkins shared library as well as sample CI/CD pipelines using the 3scale_toolbox. I had the opportunity to train colleagues and transmit this knowledge but I never took the time to set it down on paper. Continue reading
When developing on microservices, developers need to run a mix of software. Some of them running in containers, others in virtual machines, some others in the cloud and the rest on the developer’s workstation. Microservices having a lot of connections between themselves in addition to technologies such as TLS or OpenID Connect implies DNS names to be consistent. Consistent DNS names means that no matter if a client on the developer workstation, on a VM or on a container, trying to reach a server on the developer workstation, on a VM or on a container, the server DNS name must always be the same. This article explains how to setup a developer workstation on Fedora, with Libvirt VMs and Podman containers and achieve consistent DNS name resolution. Continue reading
Starting with version 4.8, OpenShift can now officially be installed on a single virtual machine (instead of three). This effectively lowers the resources requirements and open up new possibilities for home labs or developer workstations. This article explores how to deploy OpenShift Single Node (SNO) using KVM on your Fedora workstation. Continue reading