I’m new to Rancher, and I couldn’t create a successful cluster yet. Here’s the current setup:
1- OS: CentOS 7.9
2- Kernel: Linux 3.10.0-1160.6.1.el7.x86_64
3- Node cound: four nodes (including Rancher installation node)
4- Deployment model: Docker Installation (just for training purposes).
5- Rancher version: 2.5.latest
6- Docker CE 19.03.14
7 - Docker refuses to run without FirewallD started,so, the following ports are allowed on all nodes:
I created a new cluster (with all set to default, Canal, and cluster type “none”, and all of the nodes are in active state, one master, and two workers, and then I made all masters, but the cluster is still in “Error” state with the following error:
All hosts have the same “hosts” file, and they all can ping each other with host name.
" This cluster is currently Error ; areas that interact directly with it will not be available until the API is ready. Cluster health check failed: cluster agent is not ready"