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#!/bin/bash
container=""
output=""
# trap ctrl-c and call ctrl_c()
trap ctrl_c INT
function ctrl_c() {
echo "Done writing file"
exit
}
while getopts ":c:o:" opt; do
case $opt in
c)
container="$OPTARG"
echo "Container: $container"
;;
o)
output="$OPTARG"
echo "Output: $output"
;;
\?)
echo "wrong flag"
exit 1
;;
:)
echo "Option -$OPTARG requires an argument."
exit 1
;;
esac
done
echo "Starting docker stats"
while true
do
echo "`date -u` `docker stats -a --no-stream --format "{{ json . }}" $container`" >> $output
done