Port to Ansible 2

[willmore]

Added new file datadog_callback_ansbile2.py which is a copy of
datadog_callback.py modified to work with Ansible 2.

This commit is a quick attempt to maintain Ansible 2 compatibility.
The V1 version has not been modified at all, and there has been no attempt
to normalize the interaction with DataDog between the two versions -
a big DRY violation. However, Ansible 2 works and refactoring can be done as
needed/desired.

Modification began with following porting guidance:
https://docs.ansible.com/ansible/porting_guide_2.0.html

Minor other adjustments were maded following examples:
https://github.com/ansible/ansible/tree/devel/lib/ansible/plugins/callback

[joffotron]

Hi @willmore @irabinovitch - having a bit of trouble with this on our buildservers, we're seeing

 [WARNING]: Failure when attempting to use callback plugin (</tmp/ops_e40c9b8c-
6cbb-4018-a8f1-dc79e85b6a80/ansible/playbooks/callback_plugins/datadog_callback
_ansible2.CallbackModule object at 0x7f6816d47c50>): [Errno 2] No such file or
directory

and

 [WARNING]: Failure when attempting to use callback plugin (</tmp/ops_e40c9b8c-
6cbb-4018-a8f1-dc79e85b6a80/ansible/playbooks/callback_plugins/datadog_callback
_ansible2.CallbackModule object at 0x7f6816d47c50>): 'module_name'

Any ideas as to how I can even start to debug this?

[panophobicPanda]

Thanks @willmore , this was very helpful.

I added a few things for my personal enjoyment:

1. Added print statement for pip requirements
2. Check ansible version, if less then 2, exit before failure
3. Changed user for event from remote_user to my shell user

If anyone wants these, here is some code....
print statements at start:

import getpass
from os import popen
print("Datadog notifications enabled, be sure you meet these requirements: pip install datadog pyyaml && ansible > 2.0")
print("Your ansible version is:")
ansible_version_long = os.popen("ansible --version | head -n1 | awk '{print $2}'").read()
print(ansible_version_long)

exit if ansible < 2 :

ansible_version_major = int(os.popen("ansible --version | head -n1 | awk '{print $2}' | cut -d . -f 1").read())
if ansible_version_major >= 2:
... all the code stuff ....
else:
        print "ansible_version >= 2.0 required for datadog notifications, remove ansible-core/callback_plugins folder to continue; there is no smooth way to handle this, sorry"
        exit()

Change remote_user to shell_user:

        #                self._options.remote_user,
                        getpass.getuser(),

[oryband]

any update on this? almost 2 months have past and ansible 2 is gaining popularity

[oryband]

possible duplicate of #11 ?

[olivielpeau]

Thanks @willmore!

I'm working on testing this PR (along with #11) and merging the changes into the current callback (I'd like to keep one callback file for both Ansible 1 and 2). I should have something ready by the end of the week.

cc @oryband

[olivielpeau]

Closed by #16, thanks @willmore!

[willmore]

@olivielpeau happy to be of help. Thanks for adding the Ansible 2 support!

[oryband]

@joffotron i'm having a similar issue, opened a different ticket: #18