45 lines
1.3 KiB
Markdown
45 lines
1.3 KiB
Markdown
|
Flannel
|
||
|
|
==============
|
||
|
|
|
||
|
|
* Flannel configuration file should have been created there
|
||
|
|
|
||
|
|
```
|
||
|
|
cat /run/flannel/subnet.env
|
||
|
|
FLANNEL_NETWORK=10.233.0.0/18
|
||
|
|
FLANNEL_SUBNET=10.233.16.1/24
|
||
|
|
FLANNEL_MTU=1450
|
||
|
|
FLANNEL_IPMASQ=false
|
||
|
|
```
|
||
|
|
|
||
|
|
* Check if the network interface has been created
|
||
|
|
|
||
|
|
```
|
||
|
|
ip a show dev flannel.1
|
||
|
|
4: flannel.1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN group default
|
||
|
|
link/ether e2:f3:a7:0f:bf:cb brd ff:ff:ff:ff:ff:ff
|
||
|
|
inet 10.233.16.0/18 scope global flannel.1
|
||
|
|
valid_lft forever preferred_lft forever
|
||
|
|
inet6 fe80::e0f3:a7ff:fe0f:bfcb/64 scope link
|
||
|
|
valid_lft forever preferred_lft forever
|
||
|
|
```
|
||
|
|
|
||
|
|
* Try to run a container and check its ip address
|
||
|
|
|
||
|
|
```
|
||
|
|
kubectl run test --image=busybox --command -- tail -f /dev/null
|
||
|
|
replicationcontroller "test" created
|
||
|
|
|
||
|
|
kubectl describe po test-34ozs | grep ^IP
|
||
|
|
IP: 10.233.16.2
|
||
|
|
```
|
||
|
|
|
||
|
|
```
|
||
|
|
kubectl exec test-34ozs -- ip a show dev eth0
|
||
|
|
8: eth0@if9: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1450 qdisc noqueue
|
||
|
|
link/ether 02:42:0a:e9:2b:03 brd ff:ff:ff:ff:ff:ff
|
||
|
|
inet 10.233.16.2/24 scope global eth0
|
||
|
|
valid_lft forever preferred_lft forever
|
||
|
|
inet6 fe80::42:aff:fee9:2b03/64 scope link tentative flags 08
|
||
|
|
valid_lft forever preferred_lft forever
|
||
|
|
```
|