ReadMeFeed / Community knowledge
Real questions. Useful conversations. Find the people who know your stack.
DevOps & observability · #kubernetes
Each object in your cluster has a Name that is unique for that type of resource. Every Kubernetes object also has a UID that is unique across your whole cluster. For example, you can only have one Pod named myapp-1234 within the same namespace , but you can have one Pod and one Deployment that are e
Started · 21 Oct 2021, 03:59 UTC
I have few contexts setup in K9s. How do I switch between them? For example, I am in the PROD context, and I want change the context to NONPROD . How do I do this using the shortcuts?
The CRI is a plugin interface which enables the kubelet to use a wide variety of container runtimes, without having a need to recompile the cluster components. You need a working container runtime on each Node in your cluster, so that the kubelet can launch Pods and their containers. The Container R
I'm using mysql Kubernetes statefulset, i mapped PVs to host directory (CentOS 8 VM) but getting " pod has unbound immediate PersistentVolumeClaims" apiVersion: apps/v1 kind: StatefulSet metadata: name: mysql-container spec: serviceName: mysql replicas: 1 selector: matchLabels: app: mysql-container template: metadata: labels: app: mysql-container spec: conta
Labels are key/value pairs that are attached to objects such as Pods. Labels are intended to be used to specify identifying attributes of objects that are meaningful and relevant to users, but do not directly imply semantics to the core system. Labels can be used to organize and to select subsets of
Rancher utilizes Project-level Resource Quotas to group multiple Kubernetes namespaces under a single administrative boundary, enforcing limits on CPU, memory, and pod counts via the underlying Kubernetes ResourceQuota API. When quotas are defined at the project level, the system must manage how these limits are applied or distributed across the constituent
I'm taking a Kubernetes course and part of the course is trying out minikube. I have minikube and kubectl installed on an Ubuntu 20.04 WSL on Windows 11. When I run minikube dashboard in the Ubuntu terminal the process hangs on Verifying proxy health... . I tried running kubectl proxy in another terminal window then running minikube dashboard . I go to the d
Operators are software extensions to Kubernetes that make use of custom resources to manage applications and their components. Operators follow Kubernetes principles, notably the control loop . Motivation The operator pattern aims to capture the key aim of a human operator who is managing a service
System component logs record events happening in cluster, which can be very useful for debugging. You can configure log verbosity to see more or less detail. Logs can be as coarse-grained as showing errors within a component, or as fine-grained as showing step-by-step traces of events (like HTTP acc
rancher