Edge Agent

Introduction
When a remote endpoint is not directly accessible from the Portainer Server instance, we recommend deploying the Portainer Edge Agent to the remote endpoint. This allows you to manage the remote endpoint from your Portainer Server instance without having to open any ports on the endpoint. Rather than the traditional approach of the server connecting to Agents, the Edge Agent instead polls the Portainer Server periodically to see if there are any pending jobs to perform, and acts appropriately.
For a technical summary of how the Edge Agent works, refer to our advanced documentation.
Preparation
The Edge Agent requires two ports be open on the Portainer Server instance: 9000 (which is used by the Portainer UI and in most cases is open) and 8000. Port 8000 is used to provide a secure TLS tunnel between the Portainer Edge Agent and the Portainer Server instance. Our installation instructions configure Portainer Server to listen on both ports by default, and you will need to ensure your firewalling provides external access to these ports in order to proceed.
If your Portainer Server instance is deployed with TLS, the agent will use HTTPS for the connection it makes back to Portainer. However if your Portainer instance uses a self-signed certificate, the Edge Agent must be deployed with the -e EDGE_INSECURE_POLL=1 flag. If you do not deploy the Edge Agent with this flag, then the agent will not be able to communicate with the Portainer Server instance.
Deploying
Log into your Portainer Server UI as an administrator and click on Endpoints in the left hand menu, then under Environment type select Edge Agent.
The Name should be a human-recognizable name for the endpoint and is how it will appear in the Portainer UI. The Portainer server URL is the URL the Edge Agent will connect to, so this must be resolvable from the Edge Agent. If using a FQDN, ensure that DNS is properly configured to provide this.
You can adjust the Poll frequency to suit your requirements - this defines how often this Edge Agent will check the Portainer Server for new jobs. The default is every 5 seconds. You can also assign this endpoint to a Group or add Tags.
When you have completed the form, click the Add endpoint button. This will create the endpoint within your Portainer Server instance and you will be taken to the Endpoint Details page for the endpoint.
Your next step will now be to deploy the Edge Agent in your cluster. Choose your platform and environment in the first section and you'll be provided with the relevant installation commands. Run this on your remote endpoint to complete the installation. Alternatively if you are prestaging your Edge Agent, you can retrieve the join token here. You can also adjust the endpoint configuration from this page. 
Once the Edge Agent has been deployed on the remote cluster and the cluster has checked in with your Portainer Server instance, you're ready to go.

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Contents

Introduction

Preparation

Deploying