[chef] Re: Re: Re: NoMethodError for LWRP within a ruby_block?

[Lucas Hrabovsky < >]

If your able to now get access to your LWRP and hitting the problem of things not running in 

the converge, have a look at converge_by

http://docs.opscode.com/lwrp_custom_provider_ruby.html#converge-by

Here's an example from my app cookbook https://gist.github.com/imlucas/7812280

On Thursday, December 5, 2013 at 2:17 PM, wrote:

Thanks for the response. I forgot chef DSL isn't available within a ruby_block.

Basically, I'm trying to get my recipe actions executing in the right order,

using the chef tools as I understand them so far. I'll probably try run_context

today.

Given my cookbook, the run order I desire is:

1. Start mysql

2. Wait for innodb recovery to complete (i.e. wait for mysql to respond to queries).

3. Query a value from mysql

4. Take action on that value using my LWRP

But the run order that actually happened before I tried putting 3 and 4 into

a ruby_block was:

1. Query a value from mysql (got executed at compile phase)

2. Take action on that value using my LWRP (got executed at compile phase)

3. Start mysql (got executed at convergence phase)

4. Wait for innodb recovery to complete (i.e. wait for mysql to respond to queries). (got executed at convergence phase)

Items executing at compile phase rather than convergence phase is working

against me, I feel. I'll keep trying.

thx,

kallen

On Wed, 04 Dec 2013, Brian Fletcher wrote:

Hi Callen,

When inside a ruby_block the chef DSL doesn't work. You need to use pure

ruby. Here is an example of how you can execute a resource from a

ruby_block. The cookbook is called 'test' and the lwrp is called 'mine'.

ruby_block 'dd' do

block do

mine = Chef::Resource::TestMine.new('bb', run_context)

mine.run_action(:create)

end

action :create

end

You will need something like the following. The lwrp name is turned into

camel case.

mysqlacl = Chef::Resource::ClonerDbSvcMysqlacl("mysqlgrants", run_context)

mysqlacl.ipv4_address(quux_ip)

?

mysqlacl.run_action(:create_acl)

Regarding whether its the right thing to do, I try to avoid them if

possible. This is because it is difficult to make assertions about the

actions executed within a ruby_block using chefspec (unit testing for

chef).

Thanks,

Brian

On 04/12/2013 19:06, " "> " < "> > wrote:

Hiya,

How do I make an LWRP that I created available in a recipe within a

ruby_block?

It's not working for me.

[2013-12-04T00:13:14+00:00] DEBUG: Re-raising exception: NoMethodError -

ruby_block[do stuff] (cloner::grants line 30) had an error:

NoMethodError: undefined method `cloner_db_svc_mysqlacl' for

Chef::Resource::RubyBlock

/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.2/lib/chef/resource.

rb:294:in `method_missing'

/var/cache/chef/cookbooks/cloner/recipes/grants.rb:67:in `block (2

levels) in from_file'

/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.2/lib/chef/provider/

ruby_block.rb:33:in `call'

/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.2/lib/chef/provider/

ruby_block.rb:33:in `block in action_run'

/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.2/lib/chef/mixin/why

_run.rb:52:in `call'

/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.2/lib/chef/mixin/why

_run.rb:52:in `add_action'

/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.2/lib/chef/provider.

rb:149:in `converge_by'

/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.2/lib/chef/provider/

ruby_block.rb:32:in `action_run'

/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.2/lib/chef/provider.

rb:114:in `run_action'

/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.2/lib/chef/resource.

rb:625:in `run_action'

...

Afaict, the recipe code needs to execute during the convergence phase of

the

chef-client run. In my case, the code needs to (1) first start mysql, (2)

wait

for mysql to complete its startup (wait for innodb recovery to complete)

and (3)

then query a value from a table. (4) And then do another action depending

on the

value returned.

I tried doing the above outside a ruby_block my first time through, then

realized #3 was executing before #2 had completed. IOW #3 was executing

at the

compile phase. So now I'm trying to put all of this into a ruby_block,

but the

call to my LWRP is failing. (Is using a ruby_block for this the right

answer?)

The LWRP lives in 'cloner-db-svc' cookbook. The cookbook::recipe that

calls it

is 'cloner::grants'. The cloner cookbook depends on cloner-db-svc. When

the code

runs outside of a ruby_block, the recipe finds the LWRP method just fine,

but

the behavior I need doesn't occur.

::Chef::Recipe.send(:include, ::Cloner::Chef::DbSvc::Helper)

ruby_block "do stuff" do

block do

quux_ip = search(:node, 'roles:quux').map {|server|

server['ipaddress'] }.join(",")

cli_password = ::Cloner::Chef::DbSvc::Helper.fetchsecret( "secrets",

"#{node['cloner']['environment']}", "rootpass" )

current_ip = %x( mysql --skip-column-names -hlocalhost -uroot

-p#{cli_password} -e \"SELECT Host FROM mysql.user WHERE

User='cloner_admin'\" )

if current_ip.empty?

Chef::Log.debug("HIGGS-BOSON: current_ip is empty, applying

grants.")

cloner_admin_pass = ::Cloner::Chef::DbSvc::Helper.fetchsecret(

"secrets", "#{node['cloner']['environment']}", "cloner_admin_pass" )

cloner_proc_pass = ::Cloner::Chef::DbSvc::Helper.fetchsecret(

"secrets", "#{node['cloner']['environment']}", "cloner_proc_pass" )

cloner_db_svc_mysqlacl "mysqlgrants" do

action :create_acl

ipv4_address quux_ip

cli_password cli_password

cloner_admin_pass cloner_admin_pass

cloner_proc_pass cloner_proc_pass

end

current_ip = %x( mysql --skip-column-names -hlocalhost -uroot

-p#{cli_password} -e \"SELECT Host FROM mysql.user WHERE

User='cloner_admin'\" )

Chef::Log.debug("HIGGS-BOSON: After applying mysqlgrants, quux_ip

#{quux_ip}; current_ip #{current_ip}")

else # snipped for brevity

end

end

action :create

end

Thanks!

kallen