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Docker Netstat counts tcp connections by state
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| #!/bin/bash | |
| while : | |
| do | |
| date | |
| containers=$(docker ps --format "{{.Names}}:{{.ID}}") | |
| for c in $containers | |
| do | |
| echo $c | |
| CID=$(echo $c | awk -F ":" '{print $2}') | |
| nsenter -t $(docker inspect -f '{{.State.Pid}}' $CID) -n netstat -ant |tail -n +3|awk '{print $6}' | sort | uniq -c | |
| echo ---------------------- | |
| done | |
| echo ================== | |
| sleep 30 | |
| done |
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output example