Add a common OCM setup troubleshooting guide (#51)

Signed-off-by: Mike Ng <[email protected]>

Author: mikeshng

troubleshooting/setup-ocm.md

@@ -0,0 +1,16 @@
+# Troubleshooting for setting up OCM
+
+### I am getting an error about "Error: no CSR to approve for cluster <cluster-name>" when running the "clusteradm accept" command.
+
+On the managed cluster, check the `klusterlet-registration-agent` pod log by using:
+
+```
+kubectl -n open-cluster-management-agent get pod
+kubectl -n open-cluster-management-agent logs pod/klusterlet-registration-agent-<suffix> # Replace <suffix> with output from the "get pod" command.
+```
+
+If you are using `KinD` clusters to setup OCM, ensure you use the `--force-internal-endpoint-lookup` flag when you join the cluster using the `clusteradm join` command. For example:
+
+```
+ clusteradm join --force-internal-endpoint-lookup --wait --hub-token <hub-token> --hub-apiserver <hub-apiserver> --cluster-name <cluster-name>
+```