/15 * * * * /usr/bin/docker exec 439b5f929468 python3 /app/metrics.py 2>&1 | /usr/bin/timestamp.sh >> /var/log/dedl-stack/dedl_stack.log

I have a cronjob running every 15 minutes, however sometimes one of the functions in the script gets stuck, what would be the cleanest way to implement a timeout for this job?

root@noc1(INTERNAL):/etc# ps aux | grep metrics
root     1593181  0.0  0.0  12288     4 ?        Sl+  Apr08   0:00 vim metrics.py
root     2506700  0.2  0.1 296684 63860 ?        Ssl  11:03   0:00 python3 /app/metrics.py
root     2506842  0.3  0.1 296684 63748 ?        Ssl  11:06   0:00 python3 /app/metrics.py
root     2506891  1.8  0.1 296684 63772 ?        Ssl  11:09   0:00 python3 /app/metrics.py
root     2506903  0.0  0.0   7008  2208 pts/0    R+   11:09   0:00 grep --color=auto metrics
root@noc1(INTERNAL):/etc# timeout -s 9 15s /usr/bin/docker exec 439b5f929468 python3 /app/metrics.py
2024-07-09 11:11:05,544 - INFO - Connected to central gateway.
2024-07-09 11:11:05,546 - INFO - Connected to lumi gateway.
2024-07-09 11:11:05,546 - INFO - Attempting to create new cluster for central. Attempt 1
Killed
root@noc1(INTERNAL):/etc# ps aux | grep metrics
root     1593181  0.0  0.0  12288     4 ?        Sl+  Apr08   0:00 vim metrics.py
root     2506700  0.1  0.1 296684 63860 ?        Ssl  11:03   0:00 python3 /app/metrics.py
root     2506842  0.2  0.1 296684 63748 ?        Ssl  11:06   0:00 python3 /app/metrics.py
root     2506891  0.5  0.1 296684 63772 ?        Ssl  11:09   0:00 python3 /app/metrics.py
root     2507022  4.0  0.1 296684 63692 ?        Ssl  11:11   0:00 python3 /app/metrics.py
root     2507032  0.0  0.0   7008  2200 pts/0    S+   11:11   0:00 grep --color=auto metrics
root@noc1(INTERNAL):/etc# ps aux | grep metrics
root     1593181  0.0  0.0  12288     4 ?        Sl+  Apr08   0:00 vim metrics.py
root     2506700  0.0  0.1 296684 64924 ?        Ssl  11:03   0:01 python3 /app/metrics.py
root     2506842  0.0  0.1 296684 64856 ?        Ssl  11:06   0:00 python3 /app/metrics.py
root     2506891  0.0  0.1 296684 64880 ?        Ssl  11:09   0:00 python3 /app/metrics.py
root     2507022  0.0  0.1 296684 64800 ?        Ssl  11:11   0:00 python3 /app/metrics.py
root     2507977  0.0  0.0   7008  2208 pts/0    S+   11:30   0:00 grep --color=auto metrics
root@noc1(INTERNAL):/etc# timeout -s 9 15s --foreground /usr/bin/docker exec 439b5f929468 python3 /app/metrics.py
timeout: failed to run command ‘--foreground’: No such file or directory
root@noc1(INTERNAL):/etc# timeout --foreground -s 9 15s  /usr/bin/docker exec 439b5f929468 python3 /app/metrics.py
2024-07-09 11:31:23,226 - INFO - Connected to central gateway.
2024-07-09 11:31:23,227 - INFO - Connected to lumi gateway.
2024-07-09 11:31:23,227 - INFO - Attempting to create new cluster for central. Attempt 1
root@noc1(INTERNAL):/etc# ps aux | grep metrics
root     1593181  0.0  0.0  12288     4 ?        Sl+  Apr08   0:00 vim metrics.py
root     2506700  0.0  0.1 296684 64924 ?        Ssl  11:03   0:01 python3 /app/metrics.py
root     2506842  0.0  0.1 296684 64856 ?        Ssl  11:06   0:00 python3 /app/metrics.py
root     2506891  0.0  0.1 296684 64880 ?        Ssl  11:09   0:00 python3 /app/metrics.py
root     2507022  0.0  0.1 296684 64800 ?        Ssl  11:11   0:00 python3 /app/metrics.py
root     2508000  3.9  0.1 296684 63764 ?        Ssl  11:31   0:00 python3 /app/metrics.py
root     2508011  0.0  0.0   7008  2248 pts/0    S+   11:31   0:00 grep --color=auto metrics

As you can see timout didn’t work on script run through docker exec