This feature provides resetting a SSH key for an existing VM which means,
setting the old ssh key that is assigned to the VM previously with the new ssh
key.
Signed-off-by: Harikrishna Patnala <harikrishna.patnala@citrix.com>
Signed-off-by: Rohit Yadav <bhaisaab@apache.org>
Also ass public_ipv6_address for ipv6 address management.
Extend nics and vlans for ipv6 address.
Add dependency to com.googlecode.ipv6(java-ipv6).
Modify dhcpcommand for ipv6.
The different MAC address for a pair of redundant router have issues when short
time network outrage happened. When this happened:
1. BACKUP(r-2) cannot receive the broadcast from MASTER(r-1).
2. Then r-2 would announce it's MASTER after 3 seconds, and send gratuitous ARP
to the gateway of public ip(usually a rack router).
3. The gateway of public ip would update it's ARP cache to associate the public
ip of the network to the MAC of r-2.
4. In the meantime, r-1 still sending out VRRP broadcast(due to network issue,
the broadcast never arrived at r-2), and acting as MASTER.
5. After network outrage, r-2 would receive the higher priority VRRP broadcast
from MASTER again, then receded as BACKUP.
6. But the public gateway would still associate public ip with MAC of r-2, thus
caused the issue. r-1 would no longer able to receive any packets from public
network.
And there is no way for r-1 to send gratuitous ARP again, because it's always
consider itself as MASTER, no state changed, and no hook existed for receiving
lower priority broadcast.
So I would revert this change, and introduce another commit to ensure the newly
create redundant router would share the same MAC as the first one.
This reverts commit 9f257aa60b62f24193bba3f7c902e7779632e01e.
to the api project, ensure that all methods use interfaces from the api project.
By moving it to the api project, it lessens the dependency of plugins on the server components.
Signed-off-by: Chiradeep Vittal <chiradeep@apache.org>
NetworkManager's exclusive focus is now
- handling plugins during orchestration, and
- to deal with ip address allocation.
Those classes that used to refer to NetworkManager to get access to the datamodel now refer to NetworkModel
Signed-off-by: Chiradeep Vittal <chiradeep@apache.org>
The basic idea behind this is, deploy a fix sized threadpool for updating RvR
status, then using producer/consumer model. There is a global configuration
router.check.poolsize(10 by default) to control the pool size.
Using pool size 100 for 1000 RvR is tested with simulator and works well.
Also we can adjust the global configuration option router.check.interval to e.g.
60s from default 30s to mitigate the issue.
In the past, we use same MAC address therefore once MASTER is down, the packet
to the same MAC would go to BACKUP ASAP.
But now we also have arping after BACKUP become MASTER, which should update the
ARP cache of public gateway router quickly. Though it would be a little
delay(likely less than 1 second), it's still fine for different MAC.
And it would solve some cache issue for same mac on vSwitch different ports.
This is improvement of:
commit 1ca493e4facf190a288012bf9b888f90e2bc2855
Author: Sheng Yang <sheng.yang@cloud.com>
Date: Wed Feb 29 17:43:50 2012 -0800
bug 14042: Don't set dhcp:router option on DHCP server for non-default
network on CentOS/RHEL
The old solution only works on CentOS/RHEL, this one would enable the ability to more
guest OS, and enable user to choose what policy should be for each guest os
type.
The code that would propage userdata to router, when updateVirtualMachine api
is called, was missing. As per the docs [0], userdata should be a base64 encoded
string upto 2KB which is put on domr's html directory adn using HTTP GET the
userdata information can be obtained from the domr.
The updateVirtualMachine api [0] would accept a base64 encoded string
and decoded and put into the domr's /var/www/html/userdata/<uservm ip>/user-data
file. The operation does not require the VM to be in stopped state, though it is
advised to stop and call this api in case the user vm has a script which gets
the userdata information from domr while starting.
For example, this script can be used to fetch the data:
server_ip=$(grep dhcp-server-identifier /var/lib/dhclient-eth0.leases | tail -1 | awk '{print $NF}' | tr '\;' ' ')
wget http://${server_ip}/latest/user-data
This feature can be useful, for example to use into puppet facts [1], or to do
automation and horizontal scaling etc. based on userdata.
[0] http://incubator.apache.org/cloudstack/docs/api/apidocs-4.0.0/domain_admin/updateVirtualMachine.html
[1] http://geek.jasonhancock.com/2011/11/09/cloudstack-userdata-into-puppet-facts/
BUG-ID : CLOUDSTACK-424
Reviewed-by: Rohit Yadav <bhaisaab@apache.org>
Reported-by: Nick Wales
Signed-off-by: Rohit Yadav <bhaisaab@apache.org>
If cleanup=true, network elements and resources are shutdown and
reimplemented. Else, shutdown/reimplementation is skipped. Enabled
cleanup checkbox in CS UI.
For both cases, VRs are only deployed for Pods with no running
or starting VRs and Pods having running or starting user vms.
New DAO helpers introduced:
HostPodDao: listByDataCenterIdVMTypeAndStates
DomainRouterDao: listByPodId and listByPodIdAndStates
VMInstanceDao: listByPodId and corrected definition of listByTypeAndState
Signed-off-by: Rohit Yadav <bhaisaab@apache.org>
