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Install longhorn on a K3S cluster
3 min read
Longhorn is a highly available persistent storage for Kubernetes. It implements distributed block storage using containers and microservices creating a dedicated storage controller for each block device volume and synchronously replicating the volume across multiple replicas stored on multiple nodes. It might sound intimidating, but it's very straightforward to install
13/12/2021
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Install a multi-master K3S cluster with embedded etcd
2 min read
K3s has added full support for embedded etcd as of release v1.19.5+k3s1, so now we can create a multi-master cluster without the need of having an external MySQL database
08/11/2021
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Auto-upgrade k3s using the system-upgrade-controller
3 min read
A kubernetes cluster can get outdated pretty soon since Kubernetes keeps evolving at every release. If we have a k3s cluster we can use the system-upgrade-controller for automatically handling the upgrades. Let's take a look on how to configure it
26/05/2021
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k3s: Join a new worker node to an existing cluster
3 min read
On a previous post we saw how ridiculously easy is to bootstrap a k3s cluster on a Raspberry Pi but what do we need to do to join new worker nodes to the cluster?
05/04/2021
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kubernetes: List available API using kubectl
2 min read
With kubectl api-resources we can get the list of available objects, but the same object can be defined using different API versions, for example the Ingress object is different on v1beta1 compared to v1. Using kubectl api-versions we can get the list of all the available API versions on our kubernetes cluster
16/03/2021
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