In Kubernetes, when configuring a Service to expose your applications, you’ll encounter three key port concepts: port, targetPort, and NodePort. Understanding the distinctions and relationships between these ports is crucial for effectively managing access to your applications running within Pods. port Definition: The port field in a Service specification defines the port on which the …
DevOps
In Kubernetes, when defining a Service to expose your application, the concept of targetPort plays a crucial role in routing incoming traffic to the correct destination within your Pods. What is targetPort? Definition: targetPort is a field in the Service definition that specifies the port on the Pod containers to which the traffic should be …
Minikube is a tool that simplifies the process of running Kubernetes locally, making it easier for developers to develop and test Kubernetes applications. One of the key concepts in Minikube is the use of “drivers” to set up and manage the Kubernetes cluster’s virtual environment. Understanding Minikube drivers is crucial for configuring Minikube to suit …
In a Kubernetes environment, understanding the different types of IP addresses and how they are used is crucial for managing communication within and outside the cluster. understanding different types of IP addresses in Kubernetes To illustrate these concepts, let’s consider a scenario with a Kubernetes cluster consisting of 3 nodes, 3 Pods, each part of …
Kubernetes, the orchestration system for managing containerized applications, offers a variety of service types to ensure your applications are accessible and communicate efficiently. Each service type caters to specific use cases, balancing accessibility with resource allocation. Let’s delve into the primary Kubernetes Service types—ClusterIP, NodePort, LoadBalancer, and cloud provider-specific LoadBalancers—to understand their use cases and …
Pods are foundational to building and running applications in Kubernetes. They provide the execution environment for containers, encapsulating application components, managing their lifecycle, and facilitating inter-component communication and resource sharing. A Pod encapsulates one or more containers, storage resources, a unique network IP, and options that govern how the container(s) should run. Containers within a …
minikube start –vm-driver=none 😄 minikube v1.32.0 on Ubuntu 20.04 ✨ Using the none driver based on existing profile 👍 Starting control plane node minikube in cluster minikube 🔄 Restarting existing none bare metal machine for “minikube” … 🔗 Exiting due to NOT_FOUND_CNI_PLUGINS: 💡 Suggestion: The none driver with Kubernetes v1.24+ requires containernetworking-plugins. Exiting due to …
Minikube is an invaluable tool for developers looking to test and develop Kubernetes applications locally. However, when running Minikube with Kubernetes version 1.24 or higher using the none driver and Docker as the container runtime, you might encounter the NOT_FOUND_CRI_DOCKERD error. minikube start –vm-driver=none 😄 minikube v1.32.0 on AlmaLinux 8.6 ✨ Using the none driver …
minikube start –vm-driver=none 😄 minikube v1.17.1 on Ubuntu 20.04 ✨ Using the none driver based on user configuration ❌ Exiting due to GUEST_MISSING_CONNTRACK: Sorry, Kubernetes 1.20.2 requires conntrack to be installed in root’s path Understanding GUEST_MISSING_CONNTRACK error The error message you’re encountering indicates that conntrack, a required dependency for Kubernetes 1.20.2, is missing from the …
minikube start –vm-driver=none 😄 minikube v1.32.0 on Almalinux 8.6 ✨ Using the none driver based on user configuration ❌ Exiting due to GUEST_MISSING_CONNTRACK: Sorry, Kubernetes 1.28.3 requires crictl to be installed in root’s path The message you’re seeing is from attempting to start Minikube with a specific configuration on your Almalinux 8.6 system. Here’s a …