kolla/tools/validate-docker-execute.sh

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#!/bin/bash
#
# This script can be used to check user privilege to execute
# docker commands
function check_dockerexecute {
docker ps &>/dev/null
return_val=$?
if [ $return_val -ne 0 ]; then
echo "User $USER can't seem to run Docker commands. Verify product documentation to allow user to execute docker commands" 1>&2
exit 1
fi
}
check_dockerexecute