Working on this task I was able to build 3 node HAProxy/Keepalived Controller's
cluster , create compute node , launch CirrOS VM,
However, I cannot ping floating IP of VM running on compute ( total 4 CentOS 7.1 VMs,
nested kvm enabled )
Looks like provider external networks doesn't work for me.
But , to have eth0 without IP (due to `ovs-vsctl add-port br-eth0 eth0 ) still allowing to
ping 10.10.10.1,
I need NetworkManager active, rather then network.service
[root@hacontroller1 network-scripts]# systemctl status NetworkManager
NetworkManager.service - Network Manager
Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled)
Active: active (running) since Fri 2015-11-13 20:39:21 MSK; 12min ago
Main PID: 808 (NetworkManager)
CGroup: /system.slice/NetworkManager.service
├─ 808 /usr/sbin/NetworkManager --no-daemon
└─2325 /sbin/dhclient -d -q -sf /usr/libexec/nm-dhcp-helper -pf
/var/run/dhclient-eth0...
Nov 13 20:39:22
hacontroller1.example.com NetworkManager[808]: <info>
NetworkManager state is n...L
Nov 13 20:39:22
hacontroller1.example.com dhclient[2325]: bound to 10.10.10.216 -- renewal
in 1...s.
Nov 13 20:39:22
hacontroller1.example.com NetworkManager[808]: <info> (eth0):
Activation: succe....
Nov 13 20:39:25
hacontroller1.example.com NetworkManager[808]: <info> startup
complete
[root@hacontroller1 network-scripts]# systemctl status network.service
network.service - LSB: Bring up/down networking
Loaded: loaded (/etc/rc.d/init.d/network)
Active: inactive (dead)
[root@hacontroller1 network-scripts]# cat ifcfg-eth0
TYPE="Ethernet"
BOOTPROTO="static"
NAME="eth0"
DEVICE=eth0
ONBOOT="yes"
[root@hacontroller1 network-scripts]# ping -c 3 10.10.10.1
PING 10.10.10.1 (10.10.10.1) 56(84) bytes of data.
64 bytes from 10.10.10.1: icmp_seq=1 ttl=64 time=0.087 ms
64 bytes from 10.10.10.1: icmp_seq=2 ttl=64 time=0.128 ms
64 bytes from 10.10.10.1: icmp_seq=3 ttl=64 time=0.117 ms
--- 10.10.10.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 0.087/0.110/0.128/0.021 ms
If I disable NetworkManager and enable network this feature will be lost. Eth0 would have
to have static IP or dhcp lease,
to provide route to 10.10.10.0/24.
Thank you.
Boris.