I am trying to add my Google Service account to n8n but it continually gets stuck on testing after clicking save. I have removed all the \n from the private key and have enables all the relevant apis on the Google console. I have my webhook_tunnel_url set in the environment as well. I even made a new private key to no avail.
So it turns out that my entire docker container had lost outbound internet connectivity due to the fact that I had --iptables=false in my systemd override file for docker which was working fine until I updated n8n and docker didn’t like something and my iptables didn’t change to reflect this.