When deploying Kubernetes services I get an error: The Service "my-service" is invalid:spec.ports[0].nodePort: spec.ports[0].nodePort: invalid value '2181': provided port is not in the valid range This is my service configuration: --- kind: "Service" apiVersion: "v1" metadata: name:...
Monitoring Containers in Kubernetes Kubernetes takes the idea of container orchestration to the next level. It is an extensive system that manages a set of cluster nodes, with each node acting as a server for hosting multiple pods. Each pod can contain one or more containers running together. ...
Since I'm currently running all single-node (SNO) (bare-metal) clusters, the gateway node is each SNO host. A site-to-site VPN allows direct connectivity between each of the clusters. These clusters are based on OCP 4.11 using OVNKubernetes. You must open some additional, required ports i...
Using environment variables in shell scripts: Tutorial: Environment variables are one of those Linux things that, once they click, you’ll be using them everywhere. Unit vs integration testing: What's the difference?: We demystify the difference between unit and integration testing, and explain wh...
From the program, query the cAdvisor service URL for all containers (you get all containers on your node because of the external traffic policy) From the list of containers, find those with the annotation"io.kubernetes.pod.name": "POD_NAME", ...
Solving Kubernetes Node Errors with Komodor Kubernetes troubleshooting relies on the ability to quickly contextualize the problem with what’s happening in the rest of the cluster. More often than not, you will be conducting your investigation during fires in production. ...
How to Deploy New Helm Chart on Kubernetes After configuring thevalues.yamlfile, deploy the application usingHelm commands. Proceed with the steps below to complete this action. Step 1: Install Helm Chart Install the Helm chart using thehelm install command: ...
[root@node ~]# vi /root/.toolboxrc REGISTRY=[custom-private-registry.example.com:5000] IMAGE=rhel9/support-tools Apply any Proxy variables to the current session, if applicable: Raw $ export HTTP_PROXY=http://<username>:<pswd>@<ip>:<port> ...
- role: node scheme: https tls_config: ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt insecure_skip_verify: true # Required with Minikube. Scrape cAdvisor (container level information) Thekubeletonly provides information about itself and not the containers. Use an exporter to rece...
Without this, Kubernetes might schedule a Pod onto a node that doesn't have enough capacity for it. Even if the Pod uses a small amount of CPU at first, that amount could increase over time, leading to CPU exhaustion. How do I mitigate missing CPU requests? To mitigate this risk, speci...