On my controller, `who am i` produces no output. In your python script
running on my system, because there is no output, `output[0]` correctly
produces the "IndexError: list index out of range" message.
Having your python script go to all that trouble to run an external
program to get the user name seems a bit much. I'd suggest doing this
instead:
import os
import pwd
userid = pwd.getpwuid(os.getuid())[0]
Then there's the question of whether you want to roll your own email
sending program rather than using the
`community.general.notification.mail` module. There may be good reasons
either way.
Good luck,
--
Todd
On 7/28/23 2:12 AM, Prady A wrote:
Hi Experts,
Need your suggestion pls.
The below one is ansible file which calls an python file in the
control node(localhost) and process an excel file which is also
present in control node based on hostnames. There is no issue in
processing the excel and now I am facing challenges while sending the
file in mail.I am trying to extract the current logged in user in
control node and send mail to that logged in user. But both my below
command incoporated in python script are not working.
#cmd = 'echo $USER
#cmd = 'who am i | cut -d" " -f 1'
output, errors, return_code = serverside_execute_command(cmd)
it seems my *serverside_execute_command(cmd):*
I executed the python program standalone it is working as expected in
the control node.But when it is called from Ansible code it is
throwing the below error. Any insight would be greatly helpful.
*Error:*
fatal: [jp1ld100 -> localhost]: FAILED! => {"changed": true, "msg":
"non-zero return code", "rc": 1, "stderr": "Traceback (most recent
call last):\n File
\"/root/.ansible/tmp/ansible-tmp-1690520194.14-32141-129555701534658/process_hostnames_v3.py\",
line 213, in <module>\n mail(filename)\n File
\"/root/.ansible/tmp/ansible-tmp-1690520194.14-32141-129555701534658/process_hostnames_v3.py\",
line 168, in mail\n if not re.match('x', output[0]):\nIndexError:
list index out of range\n", "stderr_lines": ["Traceback (most recent
call last):", " File
\"/root/.ansible/tmp/ansible-tmp-1690520194.14-32141-129555701534658/process_hostnames_v3.py\",
line 213, in <module>", " mail(dest_filename)", " File
\"/root/.ansible/tmp/ansible-tmp-1690520194.14-32141-129555701534658/process_hostnames_v3.py\",
line 168, in mail", " if not re.match('x', output[0]):",
"IndexError: list index out of range"], "stdout": "Test.xltm\nFile
[Test.xltm] has been updated and sent to mail\nDEBUG cmd: who am i |
cut -d\" \" -f 1\nDEBUG return_code: 0\n", "stdout_lines":
["Test.xltm", "File [Test.xltm] has been updated and sent to mail",
"DEBUG cmd: who am i | cut -d\" \" -f 1", "DEBUG return_code: 0"]}
*_Process.yml:_*
name: Collect host
hosts: all
tasks:
- block:
- name: python
script: "process_hostnames.py '{{ arg }}'"
args:
executable: python3
delegate_to: localhost
register: out
vars:
arg: "{{ ansible_play_hosts_all | join(' ') }}"
- debug:
var: out.stdout_lines
run_once: true
*_process_hostnames.py_*
def *serverside_execute_command(cmd):*
import subprocess
try:
result = subprocess.run(cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
check=True, shell=True,
universal_newlines=True)
except subprocess.CalledProcessError:
print('{0}'.format(result.stdout))
sys.exit(1)
output = []
errors = []
stdout = result.stdout.splitlines()
try:
for line in stdout:
if line.strip() == "":
pass
else:
output.append(line.strip())
except UnicodeDecodeError:
output = [ "OUTPUT UNREADABLE" ]
try:
errors.append(result.stderr.strip())
except UnicodeDecodeError:
errors = [" ERRORS UNREADABLE" ]
return_code = result.returncode
print("DEBUG cmd: {0}".format(cmd))
print("DEBUG return_code: {0}".format(str(return_code)))
return (output, errors, return_code)
def mail(dest_filename):
#cmd = 'echo $USER'
cmd = 'who am i | cut -d" " -f 1'
output, errors, return_code = *serverside_execute_command(cmd)*
if not re.match('x', output[0]):
raise RuntimeError("You are {0}.Please login as xID. Then try
again.".format(result.stdout))
sys.exit(1)
xid = output[0].rstrip('\n')
if __name__ == "__main__":
file_name= "Template.xltm"
mail(file_name)
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