I think you are abusing primary and the :only clause
I would create specific roles and target tasks to those roles.
Ie
server 'server20', :app, :app_primary
server 'server21', :app, :app_secondary
server 'server22'. :app
Now you can cut your servers all 3 ways by role.
If you insist on doing an 'OR' it will need to look something like this:
task :test, :hosts => find_servers(:roles => :app, :only =>{:primary => true})
+ find_servers(:roles => :app, :only =>{:secondary => true}) do ...
That makes the huge assumption you assign all of the servers and roles before
that task is defined in ruby; otherwise you'll always end up with an empty
list.
If that's the case you have to do it on the run command that way the
find_servers method is evaluated at runtime as opposed to load time.
task :test do
run "uptime", :hosts => find_servers(:roles => :app, :only =>{:primary =>
true}) + find_servers(:roles => :app, :only =>{:secondary => true})
end
On Jan 21, 2013, at 11:50 AM, Christopher Opena <[email protected]> wrote:
> Is it possible to pass an OR conditional into the :only check? I know that
> it expects an array of key/value pairs so you can essentially do an AND
> inside of the hash, but what if you want to check on multiple keys in the
> conditional?
>
> Example:
>
> I have ten servers in a bank that are all serving the application. At any
> point in time, only the :primary and the :secondary should have actions
> performed on them. Through capistrano definitions I have managed to pass
> :primary => true and :secondary => true into those two servers, such that
> (stripped all the other servers out of the array to save space):
>
> [
> #<Capistrano::ServerDefinition:0x101968618
> @hash=-2051751815,
> @host="server21.domain.com",
> @options={:secondary=>true},
> @port=nil,
> @to_s="[email protected]",
> @user="user">,
> #<Capistrano::ServerDefinition:0x10194ad98
> @hash=6964762022,
> @host="server20.domain.com",
> @options={:primary=>true},
> @port=nil,
> @to_s="[email protected]",
> @user="user">,
> #<Capistrano::ServerDefinition:0x10194cb20
> @hash=-447395779,
> @host="server22.domain.com",
> @options={},
> @port=nil,
> @to_s="[email protected]",
> @user="user">,
> ]
>
> If I want to run a task *only* on those two (the list is much longer, just
> stripped for this example), is there some iteration of :only that allows me
> to do that? I have attempted:
>
> task :test, :roles => [:app], :only => {:primary => true} || {:secondary =>
> true} do; run "hostname"; end
>
> But it only executes on the first matching hash of k,v pair. And of course,
> if you do:
>
> task :test, :roles => [:app], :only => {:primary => true, :secondary => true}
> do; run "hostname"; end
>
> It will attempt to match both k,v pairs. Anyone have any suggestions? It's
> probably just something syntactical that I'm totally overlooking.
>
> Thanks in advance,
> Chris.
> --
> * You received this message because you are subscribed to the Google Groups
> "Capistrano" group.
> * To post to this group, send email to [email protected]
> * To unsubscribe from this group, send email to
> [email protected] For more options, visit this group at
> http://groups.google.com/group/capistrano?hl=en
--
* You received this message because you are subscribed to the Google Groups
"Capistrano" group.
* To post to this group, send email to [email protected]
* To unsubscribe from this group, send email to
[email protected] For more options, visit this group at
http://groups.google.com/group/capistrano?hl=en
