No, it is remote. I am deploying a application cluster that has some nodes
dependencies, so basically in order to execute a script in one node I need
to make sure first that the remote node is already listening on a specific
port, if that node is not listening on that port I do not want to execute
the script.
I used to work with Chef before and it was easy to accomplish that with
ruby blocks.
require 'socket'require 'timeout'
def port_open?(ip, port, seconds=1)
Timeout::timeout(seconds) do
begin
TCPSocket.new(ip, port).close
true
rescue Errno::ECONNREFUSED, Errno::EHOSTUNREACH
false
end
endrescue Timeout::Error
falseend
I'm not sure how I can use something like that in puppet, I don't seem to
be able to pass puppet module variables to factors? With custom functions,
I can pass variables as arguments but I was having trouble to get a boolean
value returned. I might have to play with that some more, I just thought I
would ask to see if anybody had any working example of that.
Thanks!!
On Monday, September 14, 2015 at 7:01:00 PM UTC-7, Trevor Vaughan wrote:
>
> Is this the *local* host listening on that port, or some remote system?
>
> If it's the local host, then you would want to use a fact that calls
> something like netstat or ss and returns a Boolean based on the result of
> that port selection. You could also return all listening ports as a Hash
> and go from there.
>
> Generally, Puppet would be managing the service that actually listens on
> the port and you would simply include your manifest after starting that
> service. However, without knowing your setup, it's difficult to tell if you
> are in this situation.
>
> Thanks,
>
> Trevor
>
> On Mon, Sep 14, 2015 at 8:01 PM, aldantas <[email protected]
> <javascript:>> wrote:
>
>> Hello,
>>
>> I am writing a puppet module and I am looking into a way to have a
>> validation before trying to execute something in puppet.
>>
>> For example:
>>
>> If host is listing on port 3306 {
>>
>> file { 'name':
>> ensure => file,
>> }
>>
>> }
>>
>> or
>>
>> If host is listing on port 3306 {
>>
>> include '::module::manifest'
>>
>> }
>>
>>
>> I am a little lost on how to accomplish this. I have tried creating a
>> custom function and custom factor but I wasn't successful.
>>
>>
>> Does anyone have any good solution for this?
>>
>>
>> Thanks!!
>>
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>
>
>
> --
> Trevor Vaughan
> Vice President, Onyx Point, Inc
> (410) 541-6699
>
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>
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