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From "Wei Zhou (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-9360) Set guest password not working with redundant routers
Date Fri, 22 Apr 2016 10:19:12 GMT


Wei Zhou commented on CLOUDSTACK-9360:

when the VM starts, it get the dhcp ip, then try to fetch the password from (check
dhcp-server-identifier in /var/lib/***/dhclient-eth0.leases).

I checked the processes before 4.6, they have passwd_server_ip processes on both of guest
gateway and guest ip, hence I made the change to start both.
actually is not in use, as I think.

it should not be an issue.

> Set guest password not working with redundant routers
> -----------------------------------------------------
>                 Key: CLOUDSTACK-9360
>                 URL:
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Management Server, VPC
>    Affects Versions: 4.8.0
>         Environment: Two CentOS7 MGMT Servers, redundant router vms
>            Reporter: Thomas
>            Priority: Critical
> We got a problem with the set guest password function. 
> When you spawn a redundant router (VPC or not) the VMs don`t set their password correctly.
> We broke it down to the /opt/cloud/bin/ script which checks the Client
IP for the save password function on the routerVM:
> ---
> if clientAddress not in ['localhost', '', listeningAddress]:
>     syslog.syslog('serve_password: non-localhost IP trying to save password: %s' % clientAddress)
>     self.send_response(403)
>     return
> ---
> In the logs we see:
> --
> Apr 21 09:02:01 r-80-VM serve_password: non-localhost IP trying
to save password:
> --
> The routerVMs eth2 config:
> --
> 4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen
>     link/ether 02:00:2c:d7:00:08 brd ff:ff:ff:ff:ff:ff
>     inet brd scope global eth2
>     inet brd scope global secondary eth2
> --
> So what happens:
> The management server triggers the router vm to store a new password for a new spawned
or password reseting guest vm.
> The router vm then tries locally to connect to the password python server with it`s primary
eth2 ip, in our example:
> The python password server then checks the client IP via:
> if clientAddress not in ['localhost', '', listeningAddress]:
> and exists with: serve_password: non-localhost IP trying to save password:
> cause the listeningAddress is filled with:
> How to fix
> First possibility:
> Configure the IP as primary IP => maybe not possible cause its managed by
> Second possibilty:
> Adjust the password server if check and check also for the ip
> I tried to implement this with a subprocess and grep in /var/cache/cloud/processed/guest_network.json.*
or with a os command and ip a | grep eth2 | grep -v mtu | cut -d ' ' -f 6 | cut -d '/' -f
> Maybe someone could support here?

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