Example on Katakoda seems pretty old and doesn't work

[alkdese]

Wanted to understand how OPA works with k8s and the example reference on page https://www.openpolicyagent.org/docs/latest/kubernetes-introduction/ to
https://katacoda.com/austinheiman/scenarios/open-policy-agent-gatekeeper
uses 1.14 k8s and weave network plugin doesn't start correctly.
The controlplane node never gets into Ready state.

controlplane $ k get po
NAME                                       READY   STATUS             RESTARTS   AGE
coredns-fb8b8dccf-fhkqp                    0/1     Pending            0          114s
coredns-fb8b8dccf-sndtm                    0/1     Pending            0          114s
etcd-controlplane                          1/1     Running            0          66s
katacoda-cloud-provider-66bd4947d4-t7kx9   0/1     Pending            0          113s
kube-apiserver-controlplane                1/1     Running            0          65s
kube-controller-manager-controlplane       1/1     Running            0          52s
kube-proxy-wcfkn                           1/1     Running            0          114s
kube-scheduler-controlplane                1/1     Running            0          46s
weave-net-j62v7                            1/2     CrashLoopBackOff   4          114s
controlplane $ k logs weave-net-j62v7 -c weave
Network 10.32.0.0/24 overlaps with existing route 10.0.0.0/8 on host
controlplane $ k get no
NAME           STATUS     ROLES    AGE     VERSION
controlplane   NotReady   master   2m51s   v1.14.0
controlplane $ 

Network configuration

controlplane $ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 02:42:0a:00:00:10 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.16/8 brd 11.255.255.255 scope global ens3
       valid_lft forever preferred_lft forever
    inet6 fe80::42:aff:fe00:10/64 scope link 
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:48:b1:9b:e4 brd ff:ff:ff:ff:ff:ff
    inet 172.18.0.1/24 brd 172.18.0.255 scope global docker0
       valid_lft forever preferred_lft forever
controlplane $ 

[anderseknert]

Thanks for reporting! That does seem rather old and outdated — not to mention that it requires registration to even read. Probably best to just remove, or what do you think?

[peteroneilljr]

Katacoda for the public is shutting down on June 15th and will be fully integrated into O'Reilly, so this course will likely be deleted at that point.

https://www.oreilly.com/online-learning/leveraging-katacoda-technology.html

The success has been so dramatic that we’ve decided to focus entirely on integrating Katacoda’s technology in new ways within our ecosystem. As a result, we can no longer support katacoda.com for public use, and we’ll be shuttering the site on June 15, 2022.

[anderseknert]

Ah, yes, nothing spells dramatic success like shutting down :) I'll fix.