Open Infrastructure

Task #6255

Updated by Nico Schottelius almost 6 years ago

Testing on  

 * 2a0a:e5c0:2:12:400:f0ff:fea9:c401 
 * 2a0a:e5c0:2:12:400:f0ff:fea9:c402  
 * 2a0a:e5c0:2:12:400:f0ff:fea9:c403  

 Current findings: 

 h2. 401 / with most options 

 <pre> 
 root@kube-master:~# kubeadm init --pod-network-cidr 2a0a:e5c0:102:3::/64 --apiserver-advertise-address=2a0a:e5c0:2:12:400:f0ff:fea9:c401 --service-cidr 2a0a:e5c0:102:6::/64 
 </pre> 


 Result: api server not starting 

 h2. 402 / plain kubeadm init  

 * apiserver starts 

 h2. 403 / with --pod-network-cidr and bridge cni 

 <pre> 
 root@kube-node2:~# kubeadm init --pod-network-cidr 2a0a:e5c0:102:5::/64  
 root@kube-node2:~# cat /etc/cni/net.d/10-bridge_v6.conf  
 { 
   "cniVersion": "0.3.0", 
   "name": "mynet", 
   "type": "bridge", 
   "bridge": "cbr0", 
   "isDefaultGateway": true, 
   "ipMasq": true, 
   "hairpinMode": true, 
   "ipam": { 
     "type": "host-local", 
     "ranges": [ 
       [ 
         { 
           "subnet": "2a0a:e5c0:102:5::/64", 
           "gateway": "2a0a:e5c0:102:5::1" 
         } 
       ] 
     ] 
   } 
 } 

 </pre> 

 * apiserver starts 
 * permission denied when trying to assign an IPv6 address 
 ** known bug in newer docker versions, which DISABLE ipv6 with a systctl! 
 * should be fixed in 0.7.x release of kubernetes-cni

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