This PR fixes#5058
when start a vm, the old entries in databag for the vm (with same mac addresses) should be removed then set again, to avoid duplicated records in dhcpentry databag and also /etc/dhcphosts.txt
Testing with Isolated networks:
(1) stop vm, change vm ip address, start vm
vm info is updated in /etc/dhcphosts.txt and /etc/cloudstack/dhcpentry.json
(2) stop vm, expunge vm.
vm is removed from /etc/dhcphosts.txt and /var/lib/misc/dnsmasq.leases
Testing with VPC:
(1) create vm in 2 vpc tiers
vm has 2 entries in /etc/dhcphosts.txt, and /etc/cloudstack/dhcpentry.json
(2) stop vm, change ip addresses, change nics order, start vm
entries are updated in /etc/dhcphosts.txt and /etc/cloudstack/dhcpentry.json
(3) remove a nic from vm (hot unplug)
vm nic is removed from /etc/dhcphosts.txt and /var/lib/misc/dnsmasq.leases
entry in /etc/cloudstack/dhcpentry.json is updated.
Steps to reproduce the issue
(1) create two vm wei-001 and wei-002, start them
(2) check /etc/cloudstack/dhcpentry.json and /etc/dhcphosts.txt in VR
They have entries for both of wei-001 and wei-002
(3) stop wei-002, and restart VR (or restart network with cleanup).
check /etc/cloudstack/dhcpentry.json and /etc/dhcphosts.txt in VR
They have entries for wei-001 only (as wei-002 is stopped)
(4) expunge wei-002. when it is done,
check /etc/cloudstack/dhcpentry.json and /etc/dhcphosts.txt in VR
They do not have entries for wei-001.
VR health check fails at dhcp_check.py and dns_check.py
This does not remove VM entries in dbags when hostnames match. The
current codebase already removes entry when a VM is stopped/removed so
we don't need to handle lazy removal. This will allow a VM on
multiple-tiers in a VPC to get dns/dhcp rules as expected.
This also fixes the issue of dhcp_release based on a specific interface and
removes dhcp/dns entry when a nic is removed on a guest VM.
Fixes#3273
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Since the CloudStack virtual router was redesigned on version 4.6 it has been observed that the DHCP leases file is not persistent across network operations. This causes conflicts on guest VMs static IPs, causing these static IPs to not be renewed by the DHCP server running on isolated and VPC networks' virtual routers (dnsmasq). On stopping or destroying a VM, its dhcp/dns records are not removed from the virtual router causing ghost effects.
Fixes#3272Fixes#3354
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
When the IPv4 address of a Instance changes we need to make sure the
old entry is removed from the DHCP lease file on the Virtual Router
otherwise the Instance will still get the old lease.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
This includes test related fixes and code review fixes based on
reviews from @rafaelweingartner, @marcaurele, @wido and @DaanHoogland.
This also includes VMware disk-resize limitation bug fix based on comments
from @sateesh-chodapuneedi and @priyankparihar.
This also includes the final changes to systemvmtemplate and fixes to
code based on issues found via test failures.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
- Refactors and simplifies systemvm codebase file structures keeping
the same resultant systemvm.iso packaging
- Password server systemd script and new postinit script that runs
before sshd starts
- Fixes to keepalived and conntrackd config to make rVRs work again
- New /etc/issue featuring ascii based cloudmonkey logo/message and
systemvmtemplate version
- SystemVM python codebase linted and tested. Added pylint/pep to
Travis.
- iptables re-application fixes for non-VR systemvms.
- SystemVM template build fixes.
- Default secondary storage vm service offering boosted to have 2vCPUs
and RAM equal to console proxy.
- Fixes to several marvin based smoke tests, especially rVR related
tests. rVR tests to consider 3*advert_int+skew timeout before status
is checked.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
