Files
linux_docker/docker_shell.sh
T
John Colvin e30e3164cb improvement: Add user in container (not image)
This way the image isn't tethered to a particular user
2023-03-26 13:43:48 -04:00

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#!/usr/bin/env bash
function print_help_and_exit() {
cat <<EOF
Open a shell inside the docker container
Usage: docker_shell.sh [OPTIONS] [CONTAINER]
Options:
-u,--user The user to login with in the container (defaults to the current user)
-c,--container The container name (may also be specified as positional arg)
-h,--help Print this help message and exit
EOF
exit "$1"
}
declare docker_user=""
declare cont_name=""
while [[ $# -gt 0 ]]; do
case "$1" in
-u)
;&
--user)
if [[ -z "$2" ]]; then
echo "User (-u,--user) must be non-empty"
print_help_and_exit 1
fi
docker_user="$2"
shift 2
;;
-h)
;&
--help)
print_help_and_exit 0
;;
-c)
;&
--container)
shift 1
;&
*)
if [[ ! -z "$cont_name" ]]; then
echo "Unexpected argument '$1'"
print_help_and_exit 1
fi
cont_name="$1"
shift 1
;;
esac
done
if [[ -z "$cont_name" ]]; then
echo "Please specify the container ([-c,--container])"
print_help_and_exit 1
fi
if [[ -z "$docker_user" ]]; then
docker_user="$USER"
fi
docker exec -u "$docker_user" -it "$cont_name" bash