Having issues with Expect: module

[Byron Kim]

I can't seem to find much documentation or uses of this module.  I tried reading up on pexpect documentation however, i'm unable to find my answer.

I'm having ansible run a script and then there are prompts that need to be answered.

- name: GENERATE CERTIFICATE AND KEY
  expect:
    command: /home/user/script arg1
    chdir: /home/user/
    responses:
      (^)(?i)Enter: '{{ passphrase }}'
      (^)(?i)Verifying: '{{ passphrase }}'
      (^)(?i)Common: '{{ common_name }}'

When the ./script runs, it has a series of text and the prompt finishes with:

'Enter PEM pass phrase:'

is the `(^)(?i)` the correct regex I would be using to match the text 'Enter'?

[Matt Martz]

Id recommend just starting off with using `Enter: "{{ passphrase}}"

The (?i) indicates a case insensitive search, and the parents around ^ are unnecessary, and the can be problematic as sometimes expect sees a \n or a space as the first char.

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Matt Martz
@sivel
sivel.net

[Byron Kim]

Hi Matt - thanks for the quick response.  That seemed to have done the trick.  

Thanks!

On Thursday, January 21, 2016 at 6:23:27 PM UTC-5, Matt Martz wrote:

Id recommend just starting off with using `Enter: "{{ passphrase}}"

The (?i) indicates a case insensitive search, and the parents around ^ are unnecessary, and the can be problematic as sometimes expect sees a \n or a space as the first char.

On Thursday, January 21, 2016, Byron Kim <noco...@gmail.com> wrote:

I can't seem to find much documentation or uses of this module.  I tried reading up on pexpect documentation however, i'm unable to find my answer.

I'm having ansible run a script and then there are prompts that need to be answered.

- name: GENERATE CERTIFICATE AND KEY
  expect:
    command: /home/user/script arg1
    chdir: /home/user/
    responses:
      (^)(?i)Enter: '{{ passphrase }}'
      (^)(?i)Verifying: '{{ passphrase }}'
      (^)(?i)Common: '{{ common_name }}'

When the ./script runs, it has a series of text and the prompt finishes with:

'Enter PEM pass phrase:'

is the `(^)(?i)` the correct regex I would be using to match the text 'Enter'?

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[adhithacholan karunamurthy]

Hi Matt,
          Can you please help me here on "duplicate dict key"

[kodiak@localhost 10.0.1.51]$ cat   dockerimage.yml
---
- hosts: KVMGUEST
  tasks:
     - expect:
         command:  /usr/local/sbin/install_blade.sh
         responses:
           '(?i)Enter choice:': "2"
           '(?i)Enter desired hostname:': "rhel72"
           '(?i)associate hostname with:': "oambr-ext"
           '(?i)Enter choice:': "99"
@localhost 10.0.1.51]$


    @localhost 10.0.1.51]$ ansible-playbook   --su --su-user=root --ask-su-pass  dockerimage.yml
SU password:
 [WARNING]: While constructing a mapping from /home/kodiak/10.0.1.51/dockerimage.yml, line 7, column 12, found a duplicate dict key ((?i)Enter choice:).  Using last
defined value only.


PLAY [KVMGUEST] ****************************************************************

TASK [setup] *******************************************************************
ok: [10.0.1.51]

TASK [expect] ******************************************************************
changed: [10.0.1.51]

PLAY RECAP *********************************************************************
10.0.1.51                  : ok=2    changed=1    unreachable=0    failed=0

localhost 10.0.1.51]$

[Matt Martz]

The `expect` module has the ability to respond multiple times to a single expected string, so instead of defining the expected string 2 times, you define it once, but give it a list of responses.  Such as:

     - expect:

         command:  /usr/local/sbin/install_blade.sh

         responses:

           '(?i)Enter choice:':

             - "2"

             - "99"

           '(?i)Enter desired hostname:': "rhel72"

           '(?i)associate hostname with:': "oambr-ext"

This will require that you are running ansible 2.1, since that is the first version to have the multi answers per question functionality.

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--

Matt Martz
@sivel
sivel.net

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