v1.6.8 ERROR: a duplicate parameter was found in the argument string

[Aaron Bull Schaefer]

A new issue has cropped up for me with v1.6.8 when running a command through the shell module that has an equal sign in the command:

- name: register the zone a nat instance
  shell: 'aws --region {{ aws_region }} ec2 describe-instances --filters "Name=tag:Name, Values=NAT Instance A" "Name=instance-state-code, Values=16" --query "Reservations[*].Instances[*].InstanceId" | jq --raw-output ".[][]"'
  changed_when: false
  register: zone_a_nat_instance

...and the error I'm getting is:

TASK: [aws | register the zone a nat instance] ********************************
fatal: [localhost] => a duplicate parameter was found in the argument string (Name)

FATAL: all hosts have already failed -- aborting

Although there are technically two instances of 'Name=' in my command, it's not an actual Ansible module parameter, but part of the shell command I'd like to run. This task worked previously and no matter how I quote the above task (no surrounding quotes, single quotes, double quotes, -shell: > with a newline then the command, etc.), it throws the same error.

I did find this GitHub issue regarding the same error, but it seems like there are a number of issues going on in that thread: https://github.com/ansible/ansible/issues/8233#issuecomment-49924707

Any quick fixes? Is this an unintended consequence of the security fix?

--
Aaron Bull Schaefer

[Michael DeHaan]

So currently the duplicate param detection does look inside some quoted args that it should not.  We're working on a fix for this.

Should only happen when there are Foo= Foo= repeated in a shell/command module, with the equal signs.

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[Mark Phillips]

It hits the unarchive module too, it would appear. Got bit by that in the middle of a demo/presentation last night (that'll teach me to be running from devel!)

There is a ticket Michael, looks like somebody has already fixed it too, and sent you the PR. 

https://github.com/ansible/ansible/pull/8263

Cheers

[Michael DeHaan]

Yep, Benno works for us and is awesome.

The unarchive fix is now merged, the command module bit is a bit different.

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[Mark Phillips]

Absolutely brilliant!

Thanks for pulling that in so fast. 

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[vineet daniel]

Hi,

I am facing the same issue and there is no clear error as to which parameter is duplicate. 

a duplicate parameter was found in the argument string ()

I am using set_fact to assign values to variable in sub-task. I am including this sub-task in main task and calling ansible-playbook. The code is as follows :

---

- set_fact: 

    port1 = '80'

    domain1 = 'test'

#   timeout1 = '1'

#   balance1  = '1'

#   timeout1_connect = '10'

#  timeout1_server1 = '20'

#  server1  = '2'

#  option1 = '1'

- name: add acl for http

  lineinfile: dest="/tmp/testfile" line="acl host_ '{{ domain1 }}' hdr(host) -i '{{ domain1 }}' " insert_after="bind *:80"

- name: add acl for https

  lineinfile: dest="/tmp/testfile" line="acl host_ '{{ domain1 }}' hdr(host) -i '{{ domain1 }}'" insert_after="bind *:443"

- name: add use_backend line

  lineinfile: dest="/tmp/testfile" line="use_backend '{{ domain1 }}{{ port1 }}'  if host_ '{{ domain1 }}' " insert_before="default_backend f1_default"

  when: port1=80

With above task I tried to add a config block to haproxy config.

Any help would be appreciated.

[Michael DeHaan]

Please update to Ansible 1.7.2 and see if you have any issues there, we can't support older versions on this list.

Thanks!

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[vineet daniel]

hi

i am using 1.7.2 only.