Error running namerd about linkerd-examples

[klingerf]

Hey @gianrubio -- really sorry for the delay in responding.

I'm not positive, but based on the stacktrace, it looks like your Kubernetes cluster might not have ThirdPartyResources enabled. The namerd k8s config in this repo uses the ThirdPartyResources API to store dtabs, using namerd's io.l5d.k8s storage, described here:

https://linkerd.io/config/0.8.3/namerd/index.html#kubernetes

Can you try turning on ThirdPartyResources in your cluster to see if that fixes it? If that's not possible, then you could switch the namerd k8s config to use a different type of storage. If this is just for the purpose of testing, you could use io.l5d.inMemory instead, which doesn't require a persistent backend. If you want to go that route, then you could apply the following change:

diff --git a/k8s-daemonset/k8s/namerd.yml b/k8s-daemonset/k8s/namerd.yml
index 36c5ea2..f66ac73 100644
--- a/k8s-daemonset/k8s/namerd.yml
+++ b/k8s-daemonset/k8s/namerd.yml
@@ -15,11 +15,18 @@ data:
       port: 8001
 
     storage:
-      kind: io.l5d.k8s
-      experimental: true
-      host: localhost
-      port: 8001
-      namespace: default
+      kind: io.l5d.inMemory
+      namespaces:
+        external: |
+          /host       => /#/io.l5d.k8s/default/http/hello;
+          /http/*/*/* => /host;
+        incoming: ""
+        outgoing: |
+          /srv        => /#/io.l5d.k8s/default/http;
+          /host       => /srv;
+          /tmp        => /srv;
+          /http/*/*   => /host;
+          /host/world => /srv/world-v1;
 
     interfaces:
     - kind: io.l5d.thriftNameInterpreter

And you wouldn't need to separately run the namerctl command to populate the dtab namespaces, since they're already supplied with the config. Let us know if either of these solutions work for you. Thanks!

[klingerf]

@gianrubio We finally found the underlying cause of this issue, and have fixed it in the linkerd-examples master branch. Better late than never. 😉 Thanks for reporting, and feel free to give it a try again, using the instructions here:

https://github.com/BuoyantIO/linkerd-examples/tree/master/k8s-daemonset#daemonsets--namerd--edge-routing