CFEngine Community 3.5.3 and file templates

[Jeremy Finn]

First, let me just say that I attended the CFEngine coffee hour last Thursday, and thank you. The conversation was interesting, engaging, and the feedback I received was very helpful.

Now, I'm attempting to use CFEngine to maintain a configuration file for a monitoring software called Nimsoft, and I'm running into some hurdles that perhaps someone can shed some light on.

I need to feed a list of file system devices and mount points into a configuration file. To do this, I'm using a template. I posted a gist of the policy here:

https://gist.github.com/jeremyfinn/640b25f7fe3501d58e62

And the template here:

https://gist.github.com/jeremyfinn/1d2e30995c2e62ca1cd6

I'm using an associative array to contain the file system devices and mount points. I know that much is working because the report output when the policy runs is as follows:

$ pfexec /var/cfengine/bin/cf-agent -IKf ./nimsoft_cdm.cf

2014-11-17T15:41:21-0500   notice: R: rpool/ROOT/2014Q4A /

2014-11-17T15:41:21-0500   notice: R: rpool/ROOT/2014Q4A/var /var

2014-11-17T15:41:21-0500   notice: R: rpool/export /export

2014-11-17T15:41:21-0500   notice: R: rpool/git_repo /export/git_repo

2014-11-17T15:41:21-0500   notice: R: rpool/export/home /export/home

2014-11-17T15:41:21-0500   notice: R: rpool /rpool

$

But when I check the file that the policy creates, I get the name of the array instead of the data that it should contain.

### BEGIN sample ########################################

<disk>

   interval = 15 min

   samples = 4

   use_systemspace = no

   ignore_filesystem =

   ignore_device =

      <fixed>

         </>

            active = yes

            description = File system /

            disk = $(nimsoft_cdm.fs_tbl[$(mnt_lst)])

            percent = yes

            qos_disk_usage = no

            qos_disk_usage_perc = no

            inode_percent = yes

            qos_inode_usage = no

            qos_inode_usage_perc = no

            delta_percent = no

            delta_calculate_all = yes

            delta_type = both

            qos_disk_delta = no

            <error>

               active = yes # / disk error active

               threshold = 5 # / error threshold

               message = DiskError

            </error>

            <warning>

               active = yes # / disk warning active

               threshold = 10 # / warning threshold

               message = DiskWarning

            </warning>

            <inode_error>

               active = no # / inode_error active

               threshold = 10 # / inode_error threshold

               message = InodeError

            </inode_error>

            <inode_warning>

               active = no # / inode_warning active

               threshold = 20 # / inode_warning threshold

               message = InodeWarning

            </inode_warning>

            <missing>

               active = yes # / disk missing active

               message = DiskMissing

            </missing>

            <delta_error>

               active = no # / delta_error active

               threshold = 10 # / delta_error threshold

               message = DeltaError

            </delta_error>

            <delta_warning>

               active = no # / delta_warning active

               threshold = 8 # / delta_warning threshold

               message = DeltaWarning

            </delta_warning>

         <//>

### END sample ##########################################

Are templates in 3.5.3 able to support associative arrays? If not, is there another way to accomplish what I am trying to do? Or will I need to get my upgrade to 3.6 out of the way first, and check out some of the expanded data features it offers?

Thanks again for any insights you can share.

Regards,

Jeremy

[bishwa SHRESTHA]

Hi,

Please try with:

disk = $(nimsoft_cdm.fs_tbl[$(nimsoft_cdm.mnt_lst)])

mnt_lst(not a global variable) is unrecognisable unless we tell cfengine about its bundle context.

Regards,

Bishwa

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[Jeremy Finn]

Bishwa,

 

Thank you very much - this was indeed my problem all along. I have tested and verified this is working as expected.

 

Thanks again,

Jeremy