libra

white magic spell which displays information about a process from /proc libra will look up information on a single process based on name. If more then one process share the same name, libra will return an error

inputs

inputs into libra are environment variables

LOOKUP_CMD

command to search on.

example: if ps returns

36916 ttys000    0:00.08 bash
39588 ttys001    0:00.05 node

if you want to get information on node set LOOKUP_CMD=node

LOOKUP_ARGS

any additional arguments on the command to also search for

example: if ps returns

36916 ttys000    0:00.08 node -a
39588 ttys001    0:00.05 node -d

if you want to get information on node -a set LOOKUP_CMD=node and LOOKUP_ARGS=-a

usage

docker run -it --pid=host --privileged --rm -e LOOKUP_CMD='/docker' -e LOOKUP_ARGS='-d' runnable/libra

output

on success

{"info":{"FDSize":2048,"VmPeak":"33373208 kB","VmSize":"33373208 kB","VmHWM":"503816 kB","VmRSS":"375808 kB","VmData":"33359456 kB","VmStk":"136 kB","VmExe":"13444 kB","VmPTE":"9756 kB","Threads":1980,"voluntary_ctxt_switches":444,"nonvoluntary_ctxt_switches":623,"rchar":229278009179,"wchar":164334551263,"syscr":176566383,"syscw":48958240,"read_bytes":268124160,"write_bytes":74151432192,"cancelled_write_bytes":38762946560}}

on error

{"error":"unable to get process"}

notes

this container must be run with --pid=host if you want to inspect processes on the host if process is privileged you will also need --privileged