Re: [ansible-project] Evaluating variables in tasks

[Michael DeHaan]

Hi, I'm a little confused by the above, in particular this part:

stderr: kinit: Keytab contains no suitable keys for krb_gdc_...@MSGREEN.DOM while getting initial credentials

This looks like krb_gdc_...@MSGREEN.DOM is being substituted where you have {{ krb_hostname }} correctly.

Can you elaborate on where the problem is in your view?

Thanks!

On Sat, Dec 13, 2014 at 12:14 AM, Eric Van Steenbergen <vs....@gmail.com> wrote:

Hi all,

I'm having an issue with a variable not providing the value it should. I'm creating a variable name dynamically and save it in a variable. When calling that variable I get what's stored in it which makes sense but I want the value (variable name) substituted by its value which is stored in a file. 

I've got my problem solved partially. So I have:

in my var file:

krb_hostname: "krb_{{ inventory_hostname_short | regex_replace('-', '_') }}"

krb_gdc_in1_nbapi01: GDC-IN1-NBAPI01\$\@MSGREEN.DOM

krb_gdc_in1_nbcl01besv01: GDC-IN1-NBC1BV1\$\@MSGREEN.DOM

krb_gdc_in1_nbmess01: GDC-IN1-NBMESS1\$\@MSGREEN.DOM

krb_gdc_in1_nbife01: GDC-IN1-NBIFE01\$\@MSGREEN.DOM

krb_gdc_in1_nbfeed01: GDC-IN1-NBFEED1\$\@MSGREEN.DOM

krb_gdc_in1_nbfe01: GDC-IN1-NBFE01\$\@MSGREEN.DOM

krb_gdc_in1_nbfe02: GDC-IN1-NBFE02\$\@MSGREEN.DOM

krb_gdc_in1_nbvodb01: GDC-IN1-NBVODB1\$\@MSGREEN.DOM

My task:

- name: Run kinit -k with hostname from varfile (tag = kerberos)

  shell: kinit -k {{ krb_hostname  }}

  tags: 

    - integration

But when I run it, the result is this:

failed: [gdc-co-test01] => {"changed": true, "cmd": "kinit -k krb_gdc_co_test01", "delta": "0:00:00.011155", "end": "2014-12-12 13:41:04.489263", "rc": 1, "start": "2014-12-12 13:41:04.478108"}

stderr: kinit: Keytab contains no suitable keys for krb_gdc_...@MSGREEN.DOM while getting initial credentials

So the variable gets created correctly but krb_hostname is not being substituted by the value of the generated variable, in the example krb_gdc_co_test01 which is a variable in my var file and holds GDC-CO-TEST01\$\@MSGREEN.COM as value.

Any help is greatly appreciated.

Kind regards,

Eric

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[Michael DeHaan]

Sorry for being dense, but these two values look the same to me:

 krb_gdc_co_test01 

 krb_gdc_co_test01

What part of that is the incorrect part?

Thanks!

On Mon, Dec 15, 2014 at 10:39 AM, Eric Van Steenbergen <vs....@gmail.com> wrote:

Hello Michael,

Thank you for your reply. That's the main issue I'm facing. The variable krb_hostname gets substituted by the value krb_gdc_co_test01 while I would like to see the value of that variable krb_gdc_co_test01 which I defined in the vars file.

Kind regards,

Eric

On Monday, December 15, 2014 12:54:13 PM UTC+1, Michael DeHaan wrote:

Hi, I'm a little confused by the above, in particular this part:

stderr: kinit: Keytab contains no suitable keys for krb_gdc_...@MSGREEN.DOM while getting initial credentials

This looks like krb_gdc_co_test01@MSGREEN.DOM is being substituted where you have {{ krb_hostname }} correctly.

To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/f11c7284-c35f-4fb5-a340-01bd41e67826%40googlegroups.com.

[Tomasz Kontusz]

Try {{ hostvars[inventory_hostname][variable_with_variable_name] }}

Eric Van Steenbergen <vs....@gmail.com> napisał:

Hi,

Not at all! The values are the same indeed but my problem is exactly that ;-). What I want to achieve is this:

I've got a variable (krb_hostname) that gets dynamically build by concatenating text and the inventory_hostname. Since there are '-' in the hostname I'm substituting t(hem by '_'. That value of krb_hostname is a variable name that I define in a var file so I would like to evaluate the value of krb_hostname instead of presenting the value itself in order to have the final value GDC-CO-TEST01\$\@MSGREEN.DOM. Does that reasoning make any sense?

Kind regards,

Eric 

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