catch the exception when calling wait tower job and stamp the status with error

[mikeshng]

Signed-off-by: Mike Ng ming@redhat.com

When calling the tower_job_wait it seems to throw an exception if the Tower Job instance is in a fail state. This PR is to make sure we catch that exception and update the AnsibleJob.status.ansibleJobResult.status with error so that it doesn't say pending which gives an illusion that tower is still working on it.

An exception occurred during task execution. To see the full traceback, use -vvv. The error was: tower_cli.exceptions.JobFailure: Job failed.
fatal: [localhost]: FAILED! => {"changed": false, "module_stderr": "Traceback (most recent call last):\n  File \"/root/.ansible/tmp/ansible-tmp-1601665637.3796034-100-110247515530561/AnsiballZ_tower_job_wait.py\", line 102, in <module>\n    _ansiballz_main()\n  File \"/root/.ansible/tmp/ansible-tmp-1601665637.3796034-100-110247515530561/AnsiballZ_tower_job_wait.py\", line 94, in _ansiballz_main\n    invoke_module(zipped_mod, temp_path, ANSIBALLZ_PARAMS)\n  File \"/root/.ansible/tmp/ansible-tmp-1601665637.3796034-100-110247515530561/AnsiballZ_tower_job_wait.py\", line 40, in invoke_module\n    runpy.run_module(mod_name='ansible.modules.web_infrastructure.ansible_tower.tower_job_wait', init_globals=None, run_name='__main__', alter_sys=True)\n  File \"/usr/lib64/python3.6/runpy.py\", line 205, in run_module\n    return _run_module_code(code, init_globals, run_name, mod_spec)\n  File \"/usr/lib64/python3.6/runpy.py\", line 96, in _run_module_code\n    mod_name, mod_spec, pkg_name, script_name)\n  File \"/usr/lib64/python3.6/runpy.py\", line 85, in _run_code\n    exec(code, run_globals)\n  File \"/tmp/ansible_tower_job_wait_payload_c0okjsws/ansible_tower_job_wait_payload.zip/ansible/modules/web_infrastructure/ansible_tower/tower_job_wait.py\", line 149, in <module>\n  File \"/tmp/ansible_tower_job_wait_payload_c0okjsws/ansible_tower_job_wait_payload.zip/ansible/modules/web_infrastructure/ansible_tower/tower_job_wait.py\", line 127, in main\n  File \"/usr/local/lib/python3.6/site-packages/tower_cli/models/base.py\", line 868, in monitor\n    self.wait(pk, exit_on=['running', 'successful'], outfile=outfile)\n  File \"/usr/local/lib/python3.6/site-packages/tower_cli/models/base.py\", line 980, in wait\n    raise exc.JobFailure('Job failed.')\ntower_cli.exceptions.JobFailure: Job failed.\n", "module_stdout": "", "msg": "MODULE FAILURE\nSee stdout/stderr for the exact error", "rc": 1}

[mikeshng]

cherry picked to release-0.1 branch