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| # Incase you are interested to find out docker short, full id, hostname and ip address | |
| # of the running container, execute following commands from inside of your container | |
| # To find out docker container id (short form) | |
| DOCKER_ID=`cat /etc/hostname` | |
| echo $DOCKER_ID | |
| # To find out docker container host name using /etc/hosts | |
| HOST_NAME=`grep $DOCKER_ID /etc/hosts | sed 's/\s/\n/g' | tail -1` | |
| # – grep: search for the line having docker id | |
| # – sed: tokenize the previously found line by replacing space with newline character | |
| # – tail: grab the last line which is having host name | |
| HOST_IP=`grep $DOCKER_ID /etc/hosts | sed 's/\s/\n/g' | head -1` | |
| # – Same as above however this time it uses head command to grab the | |
| # first line which is having ip address assigned to the docker container | |
| # To find out docker container id (long form or full id) | |
| FULL_DOCKER_ID=`cat /proc/self/cgroup | grep "cpu:/docker/" | sed 's/\//\n/g' | tail -1` | |
| # – cat: print ouput of /proc/self/cgroup | |
| # – grep: filter line having cpu:/docker/ | |
| # – sed: tokenize the previously found line by replacing / with newline character | |
| # – tail: grab the last line which is having docker id | |
| # To find out ip address assigned to docker0 on host machine | |
| DOCKER_0_IP=ifconfig docker0 | grep 'inet' | sed -e 's/^[ \t]*//' | sed 's/\s\+/\n/g' | head -2 | tail -1 |
asadakbar 