Certificates and SSL Communication

If the docker registry and / or the portainer installation use a self-signed ssl certificate, it has to be ensured that the docker daemon and the portainer edge agent on the device are able to use these services, and do not refuse the connection.
The WDS server can be configured so that the agent on the device will register the configured docker registry as insecure registry. Likewise, the portainer edge agent can be instructed to use the option EDGE_INSECURE_POLL in order to accept self signed ssl certificates from the portainer server.
It is not recommended to use these options. The recommendation is to use certificates which are signed by a certificate authority which is accepted by the devices.
Administrators must be familiar with the standard security concepts of docker and portainer before they use such insecure options.