curl'ing service fails (times out) unless made from node not hosting the pod
On both labs 2 (curl a service (pod is on the worker) from master), and lab 3 (curl registry on port 5000 running on worker from master), my network calls time out. If i issue the same curl statement from the worker it works. this indicates that inter-node http traffic is blocked or failing. My two VMs are deployed on GCP on the default VPC. I have verified that I have a firewall rule enabling all traffic on all ports internally between machines. i read on a forum thread that apparmor could also possibly get in the way so i terminated that service on both nodes. i'm at my wit's end as to why i can't make an http call from master to worker. the hint on page 21 of the lab instructions (chapter 3) is not specific enough to allow me to figure out the proper way to configure GCP: "if the connection hangs it may be due to a firewall issue; ..ensure your instances are running using VPC setup and all ports are allowed.." -- please provide explicit steps. thanks.