Contents
How do I access node ports?
Exposing services as NodePort : Declaring a Service as NodePort exposes it on each Node’s IP at a static port (referred to as the NodePort ). You can then access the Service from outside the cluster by requesting : . This can also be used for production, albeit with some limitations.
How do I open a port in Kubernetes cluster?
Forward a local port to a port on the Pod
- Start the MongoDB command line interface: mongosh –port 28015.
- At the MongoDB command line prompt, enter the ping command: db.runCommand( { ping: 1 } ) A successful ping request returns: { ok: 1 }
What is node port?
A NodePort is an open port on every node of your cluster. Kubernetes transparently routes incoming traffic on the NodePort to your service, even if your application is running on a different node. However, a NodePort is assigned from a pool of cluster-configured NodePort ranges (typically 30000–32767).
What ports need to be open for Kubernetes?
The ports required for a Kubernetes deployment are:
- 2379/tcp: Kubernetes etcd server client API (on master nodes in multi-master deployments)
- 2380/tcp: Kubernetes etcd server client API (on master nodes in multi-master deployments)
- 6443/tcp: Kubernetes API server (master nodes)
How do I create a node port?
Configuring the Service Log into the master node. Edit the service definition to specify spec. type:NodePort and optionally specify a port in the in the 30000-32767 range. Note that the external IP is listed as and the node ports are listed.
How does port-forward work?
Port forwarding achieves by creating an association called a map between a router’s public, wide area network (WAN) internet protocol (IP) address and a private, local area network (LAN) IP address for a device on that private network.
What is difference between NodePort and LoadBalancer?
NodePort wins on simplicity, but you need to open firewall rules to allow access to ports 30,000 to 32,767, and know the IPs of the individual worker nodes. LoadBalancer when on a public cloud, or supported by MetalLB, works great with the service being able to control the exact port it wants to use.
What is the use of port 8443?
The port 8443 is the default port that Tomcat use to open SSL text service. The default configuration file used in the port is 8443. The Tomcat is a core project in the Jakarta project of the Apache Software Foundation, which is developed by Apache, Sun and several other companies and individuals.
How does port forwarding work?
What is difference between POD and node?
A Pod always runs on a Node. A Node is a worker machine in Kubernetes and may be either a virtual or a physical machine, depending on the cluster. A Node can have multiple pods, and the Kubernetes control plane automatically handles scheduling the pods across the Nodes in the cluster.
https://www.youtube.com/watch?v=ntC8HlH0pLs