strange behavior with Rye::Box instances in a Hash

[torstello]

Hi, i'm a sysadmin working on a tool for doing my daily tasks on my server farm. Due to the fact that i have around 70 hosts and also put them in logical groups together, i do initialize Rye:Boxes and Rye::Sets in Hashes and later work with them.

That leads to an behavior, i can not work with and also absolutely don't understand:

My ENV:

0 % ruby -v
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.4.0]

0 % gem list G rye
rye (0.9.11)

Example in irb:

> a = {}
=> {}

> hostname = 'localhost'
=> "localhost"

> a[hostname] = Rye::Box.new(host="#{hostname}", :safe => false)
=> #<Rye::Box:localhost name=localhost cwd= umask= env="" safe=false opts={:port=>nil, :keys=>["/Users/ts/.ssh/id_rsa"]} keys=["/Users/ts/.ssh/id_rsa"]>

now comes the (not so) funny part, this doesn't work:

> a.each_value {|v| v.uptime}
=> {"localhost"=>#<Rye::Box:localhost name=localhost cwd= umask= env="" safe=false opts={:port=>nil, :keys=>["/Users/ts/.ssh/id_rsa"], :user=>"ts"} keys=["/Users/ts/.ssh/id_rsa"]>}

but i'm working with an Rye::Box object with an existing method 'uptime'

> a.each_value {|v| puts v.class}
Rye::Box

> a.each_value {|v| puts v.public_methods.grep(/uptime/)}
uptime

but this works:

> a['localhost'].uptime
=> [17:59  up 13 days,  3:27, 2 users, load averages: 0.69 0.63 0.64, , 0, ]

I also create Rye::Sets in a Hash and populate them with the boxes out of another hash but this somehow leads to losing my ssh-key, so i get a password prompt... But i first want to understand this simple example above.

If you could help me out i would really appreciate that.

Best, Torsten

[windoz]

Hmm that's odd. Thanks for all the detail. I'll have to take a look. On Jan 4, 2014 12:34 PM, "Torsten Schmidt" notifications@github.com wrote:

Hi, i'm a sysadmin working on a tool for doing my daily tasks on my server farm. Due to the fact that i have around 70 hosts and also put them in logical groups together, i do initialize Rye:Boxes and Rye::Sets in Hashes and later work with them.

That leads to an behavior, i can not work with and also absolutely don't understand:

My ENV:

0 % ruby -v ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.4.0]

0 % gem list G rye rye (0.9.11)

Example in irb:

a = {} => {}

hostname = 'localhost' => "localhost"

a[hostname] = Rye::Box.new(host="#{hostname}", :safe => false) => #<Rye::Box:localhost name=localhost cwd= umask= env="" safe=false opts={:port=>nil, :keys=>["/Users/ts/.ssh/id_rsa"]} keys=["/Users/ts/.ssh/id_rsa"]>

now comes the (not so) funny part, this doesn't work:

a.each_value {|v| v.uptime} => {"localhost"=>#<Rye::Box:localhost name=localhost cwd= umask= env="" safe=false opts={:port=>nil, :keys=>["/Users/ts/.ssh/id_rsa"], :user=>"ts"} keys=["/Users/ts/.ssh/id_rsa"]>}

but i'm working with an Rye::Box object with an existing method 'uptime'

a.each_value {|v| puts v.class} Rye::Box

a.each_value {|v| puts v.public_methods.grep(/uptime/)} uptime

but this works:

irb(main):012:0> a['localhost'].uptime => [17:59 up 13 days, 3:27, 2 users, load averages: 0.69 0.63 0.64, , 0, ]

I also create Rye::Sets in a Hash and populate them with the boxes out of another hash but this somehow leads to losing my ssh-key, so i get a password prompt... But i first want to understand this simple example above.

If you could help me out i would really appreciate that.

Best, Torsten

— Reply to this email directly or view it on GitHubhttps://github.com/delano/rye/issues/47 .

[torstello]

in debug mode i saw that the command is actually executed. So this works

irb(main):005:0> a.each_value do |v|
irb(main):006:1* r = v.uptime
irb(main):007:1> puts r
irb(main):008:1> end

10:37  up  2:24, 2 users, load averages: 0.99 0.84 0.80
=> {"localhost"=>#<Rye::Box:localhost name=localhost cwd= umask= env="" safe=false opts={:port=>nil, :keys=>["/Users/ts/.ssh/id_rsa"], :user=>"ts"} keys=["/Users/ts/.ssh/id_rsa"]>}

so i'm fine with that :)

Also forget my comment about the Rye::Sets, i found my mistake in adding the boxes, so everything is working now.

T.

[windoz]

Thanks for the update. Glad to here it's working. On Jan 6, 2014 4:44 AM, "Torsten Schmidt" notifications@github.com wrote:

in debug mode i saw that the command is actually executed. So this works

irb(main):005:0> a.each_value do |v| irb(main):006:1* r = v.uptime irb(main):007:1> puts r irb(main):008:1> end

10:37 up 2:24, 2 users, load averages: 0.99 0.84 0.80 => {"localhost"=>#<Rye::Box:localhost name=localhost cwd= umask= env="" safe=false opts={:port=>nil, :keys=>["/Users/ts/.ssh/id_rsa"], :user=>"ts"} keys=["/Users/ts/.ssh/id_rsa"]>}

so i'm fine with that :)

Also forget my comment about the Rye::Sets, i found my mistake in adding the boxes, so everything is working now.

T.

— Reply to this email directly or view it on GitHubhttps://github.com/delano/rye/issues/47#issuecomment-31636843 .

[dennybaa]

+1 have the same issue. for the code retrieving box from a hash I've got the same error

  private
  # Retrieve or set rye_session
  def fetch_rye(node=nil, ssh_config=nil)
    if @@rye_session[node].nil?
      puts "==> new"
      @@rye_session = Rye::Box.new(node, ssh_config || self.ssh_config)
    else
      puts "==> here"
      @@rye_session[node]
    end
  end

cwd is havoced

 => #<Remote:0x00000002659e18 @ssh_config={:keys=>["/root/.ssh/busybee"], :auth_methods=>["publickey"]}> 
2.2.1 :059 > remote.send(:fetch_rye, "172.17.0.170")
==> new
 => #<Rye::Box:172.17.0.170 name=172.17.0.170 cwd= umask= env="" safe=true opts={:port=>nil, :keys=>["/root/.ssh/busybee"], :auth_methods=>["publickey"], :paranoid=>true} keys=[]> 
2.2.1 :060 > remote.send(:fetch_rye, "172.17.0.170")
==> here
 => #<Rye::Box:172.17.0.170 name=172.17.0.170 cwd=172.17.0.170/172.17.0.170 umask= env="" safe=true opts={:port=>nil, :keys=>["/root/.ssh/busybee"], :auth_methods=>["publickey"], :paranoid=>true} keys=[]> 
2.2.1 :061 >