[ClusterLabs] Can fence_vbox ssh-options be configured to use Windows DOS shell?

[durwin at mgtsciences.com]

Marek Grac <mgrac at redhat.com> wrote on 01/26/2017 09:19:41 AM:

> From: Marek Grac <mgrac at redhat.com>
> To: Cluster Labs - All topics related to open-source clustering 
> welcomed <users at clusterlabs.org>
> Date: 01/26/2017 09:20 AM
> Subject: Re: [ClusterLabs] Can fence_vbox ssh-options be configured 
> to use Windows DOS shell?
> 
> Hi,
> 
> On Thu, Jan 26, 2017 at 5:06 PM, <durwin at mgtsciences.com> wrote:
> I have Windows 10 running Virtualbox with 2 VMs running Fedora 25.  
> I have followed 'Pacemaker 1.1 Clusters from Scratch' 9th edition up
> through chapter 7.  It works.  I am now trying to fence VMs.  I use 
> Cygwin ssh daemon and of course bash is default for the options. 
> 
> I have used command below from one of the nodes and get the following 
return.
> 
> fence_vbox -vv --ip=172.23.93.249 --username=durwin --identity-
> file=/root/.ssh/id_rsa.pub --password= --plug="node1" --action=off 
> 
> add --verbose please.
> 
> but it looks, you will have to change --ssh-options so it does not 
> execute /bin/bash; it should be be enough to set it to "". You will 
> also have to set --command-prompt to an appropriate value then. 
> 
> m,
>  

Thank you.  Verbose is set '-vv'.

I added --ssh-options="" to the command, see below.  I do not know how to 
find out what value command-prompt needs.  What do I look for?

fc25> fence_vbox --verbose --ip=172.23.93.249 --username=durwin 
--identity-file=/root/.ssh/id_rsa.pub --password= --plug="node1" 
--action=off --ssh-options=""
Delay 0 second(s) before logging in to the fence device
Running command: /usr/bin/ssh  durwin at 172.23.93.249 -i 
/root/.ssh/id_rsa.pub -p 22
Timeout exceeded.
<fencing.fspawn object at 0x7ff4d38e6d50>
command: /usr/bin/ssh
args: ['/usr/bin/ssh', 'durwin at 172.23.93.249', '-i', 
'/root/.ssh/id_rsa.pub', '-p', '22']
buffer (last 100 chars): "durwin at 172.23.93.249's password: "
before (last 100 chars): "durwin at 172.23.93.249's password: "
after: <class 'pexpect.exceptions.TIMEOUT'>
match: None
match_index: None
exitstatus: None
flag_eof: False
pid: 17014
child_fd: 6
closed: False
timeout: 30
delimiter: <class 'pexpect.exceptions.EOF'>
logfile: None
logfile_read: None
logfile_send: None
maxread: 2000
ignorecase: False
searchwindowsize: None
delaybeforesend: 0.05
delayafterclose: 0.1
delayafterterminate: 0.1
searcher: searcher_re:
    0: re.compile("Enter passphrase for key '/root/.ssh/id_rsa.pub':")
    1: re.compile("Are you sure you want to continue connecting 
(yes/no)?")
    2: re.compile("\[EXPECT\]#\ ")
Unable to connect/login to fencing device


> Delay 0 second(s) before logging in to the fence device 
> Running command: /usr/bin/ssh  durwin at 172.23.93.249 -i /root/.ssh/
> id_rsa.pub -p 22 -t '/bin/bash -c "PS1=\\[EXPECT\\]#\  /bin/bash --
> noprofile --norc"' 
> Received: Enter passphrase for key '/root/.ssh/id_rsa.pub': 
> Sent: 
> 
> Received: 
> [EXPECT]# 
> Sent: VBoxManage list runningvms 
> 
> Connection timed out 
> 
> I tried the following commands from a DOS shell on the Windows host 
> and commands successfully executed (from Cygwin terminal it fails). 
> 
> VBoxManage controlvm node1 acpipowerbutton 
> VBoxManage startvm node1 --type=gui 
> 
> I am aware that some Windows executables do not communicate with 
> Cygwin terminals.  Is there a way to pass ssh options so that 
> VBoxManage is executed from DOS shell? 
> 
> Thank you, 
> 
> Durwin
> 
> 
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