Re: [capistrano] Setting the list of webservers to deploy to through a JSON query
On 06/03/11 11:32, Donovan Bray wrote: scalr_hosts['foo'] is just a simple hash Ah, OK. Thanks. R. (not familiar with ruby) -- * You received this message because you are subscribed to the Google Groups Capistrano group. * To post to this group, send email to capistrano@googlegroups.com * To unsubscribe from this group, send email to capistrano+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/capistrano?hl=en
Re: [capistrano] Setting the list of webservers to deploy to through a JSON query
On 05/03/11 03:08, Donovan Bray wrote: You can look here for an example http://groups.google.com/group/scalr-discuss/web/scalr-with-capistrano Donovan, Can you explain how scalr_hosts['foo'] works? R. -- Feed that ego and you starve the soul - Colonel J.D. Wilkes http://www.theshackshakers.com/ -- * You received this message because you are subscribed to the Google Groups Capistrano group. * To post to this group, send email to capistrano@googlegroups.com * To unsubscribe from this group, send email to capistrano+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/capistrano?hl=en
[capistrano] Setting the list of webservers to deploy to through a JSON query
Folks; I have a task: task :readserverlist do cde_servers_json=Net::HTTP.get 'serverlist.bluestatedigital.com', '/group/web-cde' pp JSON.parse(cde_servers_json) end What I want is the results of this JSON query to set the list of servers to deploy to at run time. Is this possible, and if so, can someone give me an example of how this is done? I've found people talking about assigning roles dynamically at run time, but I can't extrapolate how to apply those to my situation (probably because I'm a total capistrano newbie :) Any clues would be much appreciated. Thanks! -Chris -- Christopher Patti - Geek At Large | GTalk: cpa...@gmail.com | AIM: chrisfeohpatti | P: (260) 54PATTI Technology challenges art, art inspires technology. - John Lasseter, Pixar -- * You received this message because you are subscribed to the Google Groups Capistrano group. * To post to this group, send email to capistrano@googlegroups.com * To unsubscribe from this group, send email to capistrano+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/capistrano?hl=en
Re: [capistrano] Setting the list of webservers to deploy to through a JSON query
On Fri, Mar 4, 2011 at 3:59 PM, Lee Hambley lee.hamb...@gmail.com wrote:
Chris,
This isn't perfect - but is effectively what you are trying to do
- https://github.com/leehambley/capistrano-yaml-multistage
I can't remember if the current master there runs out of the box… but
there's not a lot of code, and it's pretty light on magic.
- HTH, Lee
Thanks Lee.
So, reading through your code, it looks like the salient bit is:
puts Setting role of #{role_key} to #{role_value}
role(role_key.to_sym, role_value.to_s)
Can you please tell me where the role() routine is defined? Should I
just call this in my custom task?
Based on another example:
http://groups.google.com/group/scalr-discuss/web/scalr-with-capistrano
I tried adding a role definition like he did, which has inside of the
role :web do block the array I generated in my task, but then I get
the exception I include in full below.
I've put the entire deploy.rb into a pastie:
http://pastie.org/1634110
Thanks for any clues.
-Chris
--
[16:45][cpatti@box42-142:~/src/cde-test/config(rel-113)]$ cap deploy
--set change_id=99 bsd:readserverlist
* executing `deploy'
triggering before callbacks for `deploy'
* executing `bsd:readserverlist'
* executing `bsd:checkchangeid'
* executing `bsd:deployconfirm'
This will deploy branch rel-113, are you sure? (yes/no): yes
* executing `deploy:update'
** transaction: start
* executing `deploy:update_code'
updating the cached checkout on all servers
executing locally: git ls-remote
ssh://git.bluestatedigital.com/home/git/cde-test.git rel-113
* executing if [ -d
/home/jsteadman/temp/cde-deploy/shared/cached-copy ]; then cd
/home/jsteadman/temp/cde-deploy/shared/cached-copy git fetch -q
origin git reset -q --hard 702118786e2c4f83eb98bfcd69078ce0db5761b6
git clean -q -d -x -f; else git clone -q
ssh://git.bluestatedigital.com/home/git/cde-test.git
/home/jsteadman/temp/cde-deploy/shared/cached-copy cd
/home/jsteadman/temp/cde-deploy/shared/cached-copy git checkout -q
-b deploy 702118786e2c4f83eb98bfcd69078ce0db5761b6; fi
*** [deploy:update_code] rolling back
* executing rm -rf
/home/jsteadman/temp/cde-deploy/releases/20110304214546; true
** [deploy:update_code] exception while rolling back: NoMethodError,
undefined method `match' for
#Capistrano::Configuration::Namespaces::Namespace:0x2a97004940
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/configuration/namespaces.rb:188:in
`method_missing': undefined method `match' for
#Capistrano::Configuration::Namespaces::Namespace:0x2a97004940
(NoMethodError)
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/server_definition.rb:16:in
`initialize'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:80:in
`new'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:80:in
`wrap_server'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:98:in
`wrap_list'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:97:in
`map'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:97:in
`wrap_list'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:59:in
`to_ary'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:74:in
`concat'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:74:in
`dynamic_servers'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in
`inject'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:74:in
`each'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:74:in
`inject'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:74:in
`dynamic_servers'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/role.rb:28:in
`to_ary'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/configuration/servers.rb:57:in
`concat'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/configuration/servers.rb:57:in
`find_servers'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in
`inject'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/configuration/servers.rb:57:in
`each'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/configuration/servers.rb:57:in
`inject'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/configuration/servers.rb:57:in
`find_servers'
from
/usr/local/lib/ruby/gems/1.8/gems/capistrano-2.5.19/lib/capistrano/configuration/servers.rb:9:in
`find_servers_for_task'
from
Re: [capistrano] Setting the list of webservers to deploy to through a JSON query
On Fri, Mar 4, 2011 at 4:48 PM, Chris Patti cpa...@gmail.com wrote:
On Fri, Mar 4, 2011 at 3:59 PM, Lee Hambley lee.hamb...@gmail.com wrote:
Chris,
This isn't perfect - but is effectively what you are trying to do
- https://github.com/leehambley/capistrano-yaml-multistage
I can't remember if the current master there runs out of the box… but
there's not a lot of code, and it's pretty light on magic.
- HTH, Lee
Thanks Lee.
So, reading through your code, it looks like the salient bit is:
puts Setting role of #{role_key} to #{role_value}
role(role_key.to_sym, role_value.to_s)
Can you please tell me where the role() routine is defined? Should I
just call this in my custom task?
Based on another example:
http://groups.google.com/group/scalr-discuss/web/scalr-with-capistrano
I tried adding a role definition like he did, which has inside of the
role :web do block the array I generated in my task, but then I get
the exception I include in full below.
I've put the entire deploy.rb into a pastie:
http://pastie.org/1634110
Thanks for any clues.
-Chris
[stacktrace snip. Sorry for breaking the ground rules folks :)]
OK, nailed it. Turns out I was making this way more complex than it
needed to be. After a re-read of the DSL docs:
https://github.com/capistrano/capistrano/wiki/2.x-DSL-Configuration-Roles-Role
I found that all I needed to do was put my JSON querying code that
returns a list of servers into a function, and then:
role(:web) do
compute_serverlist
end
Simple! Thanks everyone.
-Chris
--
Christopher Patti - Geek At Large | GTalk: cpa...@gmail.com | AIM:
chrisfeohpatti | P: (260) 54PATTI
Technology challenges art, art inspires technology. - John Lasseter, Pixar
--
* You received this message because you are subscribed to the Google Groups
Capistrano group.
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* To unsubscribe from this group, send email to
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http://groups.google.com/group/capistrano?hl=en
Re: [capistrano] Setting the list of webservers to deploy to through a JSON query
You can look here for an example http://groups.google.com/group/scalr-discuss/web/scalr-with-capistrano On Mar 4, 2011, at 12:27 PM, Chris Patti cpa...@gmail.com wrote: Folks; I have a task: task :readserverlist do cde_servers_json=Net::HTTP.get 'serverlist.bluestatedigital.com', '/group/web-cde' pp JSON.parse(cde_servers_json) end What I want is the results of this JSON query to set the list of servers to deploy to at run time. Is this possible, and if so, can someone give me an example of how this is done? I've found people talking about assigning roles dynamically at run time, but I can't extrapolate how to apply those to my situation (probably because I'm a total capistrano newbie :) Any clues would be much appreciated. Thanks! -Chris -- Christopher Patti - Geek At Large | GTalk: cpa...@gmail.com | AIM: chrisfeohpatti | P: (260) 54PATTI Technology challenges art, art inspires technology. - John Lasseter, Pixar -- * You received this message because you are subscribed to the Google Groups Capistrano group. * To post to this group, send email to capistrano@googlegroups.com * To unsubscribe from this group, send email to capistrano+unsubscr...@googlegroups.com 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 capistrano@googlegroups.com * To unsubscribe from this group, send email to capistrano+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/capistrano?hl=en
