Port forwarding involves configuring the firewall to allow incoming traffic from and to ports configured to the application endpoints. They act like virtual channels that allow different applications to communicate with the device. The devices also have ports associated with them. However, when you want to access a service on a specific device from the internet, you need to forward the necessary ports.Īlso Read: Kubectl Exec Tutorial How does Port Forwarding Work?Įvery device connected to a network has an IP address, which is an identifier assigned to it.

In a local network, devices communicate with each other using private IP addresses that are not accessible from the internet. It involves redirecting the traffic from one particular port on a router to another within the same network. Port forwarding is a technique used in networking to allow all kinds of devices and network components to communicate with applications running on a local network.

How to Port Forward to a Specific Namespace?.

How to Port Forward Deployment to a Local Port?.

How to Port Forward a Service to a Local Port?.

How to Port Forward a Pod to a Local Port?.

Basic Kubectl Port Forward Commands with Examples.

Here's how kubectl port forwarding works:.

Our catalog is full of applications to help you get started 🚀. Head over to Okteto Cloud and start building your next Cloud Native Application. In a future post, we'll show you how you can also use the okteto CLI to do the same thing automatically as part of your remote development environment. This is not the only way to create port forwarding tunnels. This technique can also be used for other scenarios such as connecting to remote debuggers, accessing metric ports, and many other cool things. This allows to do useful things such using CLI or GUI-based database client running on your own local machine. In this post we showed you how you can use kubectl to enable secure, local and temporary access to any service running in Okteto Cloud. And to stop the port forward, go to the terminal running kubectl port-forward, and press ctrl+C. Okteto=> INSERT INTO messages(id, message) VALUES(1, 'hello') Okteto=> CREATE TABLE messages (id int, message text) You'll need to pass the name of the kubernetes service, and the local and remote ports. To start the port forwarding connection between the database running in Okteto Cloud and your local machine, we are going to use the kubectl port-forward command (if you don't have kubectl installed, follow ). This document contains more information on this. You can do this by doing to by clicking on the Settings on the left, and then clicking on the Download Config File button in the Kubernetes Credentials section, or by running the namespace command of the Okteto CLI.

In order to create the tunnel, first you'll need to download your Kubernetes credentials from your Okteto Cloud account. This will only be available for your machine, and only while the process is running, making it a lot more secure than publicly exposing your database. This approach creates a temporary connection from your local machine to the database instance through a specific port. In order to access the database, we are going to create a port forwarding tunnel. Now that we have our database up and running, we are going to connect to it from our local machine. Leave the default values for now, and directly press on the Deploy button. This will open the Deploy configuration dialog for PostgreSQL. Once there, scroll down and click on PostgreSQL. To deploy your database, log in to Okteto Cloud, click on the Deploy button, select the Deploy from Helm Chart option. Keep in mind that this approach is not specific to databases, but works with any application running in Okteto Cloud. Deploying a PostgreSQL instanceįor this example, we are going to deploy a PostgreSQL database directly from the Okteto Cloud catalog. In this post, we'll show you how you can use the port forwarding features of Kubernetes and okteto to securely access your database directly from your local machine, just as if you were developing on your local machine. But when managing them, sometimes it's convenient to be able to use CLI or GUI-based clients running on your own local machine. These stores are normally meant to support your application, and are typically only accessible to applications and services running on the same namespace. Via the Okteto Cloud catalog you can deploy things like Redis, PostgreSQL, CockroadDB, RabbitMQ and many more. One of the big benefits of Okteto Cloud is the ability to deploy Cloud Native Stores with a single click.

Kubernetes ssh tunnel