Ip4 is not assigned to vagrant interface (enp0s8)

Kubernetes
#1

Hello Team,

#CKA --Virtual Box related…

Challenge-1:

I’ve created the cluster using vagrant. The vagrant interface (enp0s8) not getting ip address assigned. Need to assign static ip?
$ ifconfig
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.2.15 netmask 255.255.255.0 broadcast 10.0.2.255
inet6 fe80::6a:6bff:feb1:d294 prefixlen 64 scopeid 0x20
ether 02:6a:6b:b1:d2:94 txqueuelen 1000 (Ethernet)
RX packets 2105 bytes 506864 (506.8 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1286 bytes 137132 (137.1 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

enp0s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::a00:27ff:fe1f:61f2 prefixlen 64 scopeid 0x20
ether 08:00:27:1f:61:f2 txqueuelen 1000 (Ethernet)
RX packets 962 bytes 79480 (79.4 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 83 bytes 19962 (19.9 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

Challenge-2:

Can we change the ip address of cluster OR we have to recreate the cluster?
because I have assigned ip of interface enp0s3 and that is same ip for all three nodes so getting error while listing the pods.

error: $ kubectl get pods -A

The connection to the server 10.0.2.15:6443 was refused - did you specify the right host or port?

#2

Are you working from a tutorial here (such as the CKA repo’s virtualbox tutorial) or are you creating your own Vagrantfile? Or are you working from a video (in which case, a link to it would be handy).

#3

Using “Demo - Deployment with Kubeadm” video to create cluster on my laptop. Created VMs using Vagrant tool as explained in tutorial video.

#4

A better guide than that video would be the tutorials from the CKA repo, which are more detailed, and more up-to-date. Try them instead.

#5

Okay let me try. thank you !

#6

I’ve initiated the cluster using the tutorial steps but still not assigning the ip to interace(enp0s8), hence I have assigned static ip address in the same segment but getting below error. Please guide on this…

vagrant@controlplan01:~$ kubectl get pods -A
The connection to the server 10.0.x.x:6443 was refused - did you specify the right host or port?

#7

I’m not sure what you did here. For starters, what does ip addr display?

#8

Hello Rob,

I’ve figured it out. it’s resolved now.