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CRS

Container Reverse Search

Get the shell!

curl -SsL https://git.io/fN403 > /usr/local/bin/crs
chmod +x /usr/local/bin/crs
crs -h

Get the binary! (TODO)

Use cases

~$ crs -h
/usr/local/bin/crs [-option] [target]
  -i IP
  -m MAC
  -b Binds
  -v ID   # Get the veth of that container
  -V Veth # Get the container ID of that veth
  -p PID
  -P Port # alias of lsof

Search IP 172.17.0.2

~$ crs -i 172.17.0.2
ContainerID  ContainerIP
62c69d9d216d 172.17.0.2

Search Binds

~/components/consul/consul.d$ crs -b .
ContainerID  Binds
7f1750fde21f /root/components/consul/scripts:/scripts:rw/root/components/consul/consul.d:/etc/consul.d:rw

Get container's veth

~$ crs -v 57025b6cd4e4
vethe9241df@if41

Search veth's peer container

~$ crs -V vethe9241df
Veth         ContainerID
vethe9241df 57025b6cd4e4

Search Process

~$ crs -p 56245
ERROR: Process not found
~$ crs -p 5082
ERROR: Process not inside a container
~$ crs -p 29675
Container: 73ce42d0b4ad
~$

Search Ports (host mode)

~$ crs -P 8080
ERROR: Process not found
~$ crs -P 5082
ERROR: Process not inside a container
~$ crs -P 45678
Got PID 26215
Container: 3426225dca3f

In bridge mode, you can just use docker ps | grep <port number> to find out whitch container use that port.

About

Get the containerID via some "IP|MAC|PID|Binds|Ports|veth"

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