Kubernetes

Deploy a fully isolated single-node k0s environment.

Create a single or multi-node k3s Kubernetes cluster. k3s is a lightweight, CNCF-certified Kubernetes distribution packaged as a single binary, designed for resource-constrained environments.

Create a multi-node k0s Kubernetes cluster.

Create a single-node k0s Kubernetes instance. k0s is a lightweight, self-contained distribution packaged as a single binary with no external dependencies, making it straightforward to run a fully functional cluster on a single machine.

List container images inside Kubernetes cluster.

Display events related to specific pod in Kubernetes.

Determine Java version inside Keycloak container.

List the containers within a pod.

List Kubernetes nodes and their IP addresses.

Display events for specific object.

Remove finalizers to delete terminating namespaces.

Quickly display images used by specific pod.

Determine when Kubernetes object was created.

Take advantage of some kubectl tips.

Display the last applied configuration for a specific resource.

Last year, I described how to install Ingress-Nginx Controller, but at home, I prefer to configure the Ingress-NGINX Controller without a load balancer in Kubernetes.

Display control plane and worker nodes.

Utilize SOPS with Age encryption to protect secrets inside git repository.

Use Go template files with kubectl.

Use init containers to serve static website.

To make the output of Kubernetes manifests more readable, you can use a tool like kubectl-neat to clean up YAML and JSON output.

Use socat with kubectl to expose forwarded port.

Publish ready and not ready addresses using headless service; the service address always responds.

Reset Kubernetes cluster node.

Specify deletion cascading strategy.

Specify default text editor for kubectl.

Update Kubernetes secret.

Effortlessly decode Kubernetes secret.

Reserve node resources.

Perform Kubernetes conformance tests using sonobuoy diagnostic utility.

Create job and cron job inside Kubernetes cluster.

Immediately delete Kubernetes object.

Run a static pod inside Kubernetes.

Create service account.

Determine whether Kubernetes cluster follows security best practices.

Alter CoreDNS configurations.

Display resource relationships through ownersReferences.

List all resources in namespace.

Create users and assign roles inside Kubernetes cluster.

Create basic network ingress ACLs between pods.

Install NFS Subdir External Provisioner.

Enforce namespace Resource Quotas.

Create Kubernetes ConfigMaps and Secrets.

Restore object from etcd snapshot.

Backup and restore etcd database.

Install Ingress-Nginx Controller and MetalLB load-balancer.

Install hostpath storage provisioner and change the default StorageClass.

Install metrics server on Kubernetes cluster.

Define taints and tolerations.

Assign pod to specific nodes.

Mark node as unschedulable and evict its pods.

Use local port forwarding in Kubernetes.

Enable RBAC in MicroK8s.

Display examples from kubectl help.

Display Kubernetes API resources.

Create Kubernetes cluster.

Install MicroK8s.

Install Kubernetes on LXD. Essential information to just get you started.

Display command to join the Kubernetes cluster.

Today I will describe how to deal with missing AppArmor profiles for microk8s on LXD.

Install Lens | The Kubernetes IDE to take control of your Kubernetes cluster.