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#!/usr/bin/env sh
#
# run.sh
#
# Copyright (C) 2016 frnmst (Franco Masotti) <franco.masotti@student.unife.it>
#
# This file is part of cplint-installer.
#
# cplint-installer is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cplint-installer is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cplint-installer. If not, see <http://www.gnu.org/licenses/>.
#
#
pkg_dir="/usr/share/rserve-sandbox-docker"
pid_file="/run/rserve-sandbox-docker/rserve-sandbox-docker.pid"
user="rsd"
group="rsd"
docker_image_name="rserve"
help()
{
cat<<-EOF
rsd [OPTION]
Docker spec for running Rserve in a sandbox
The first time rserve-sandbox-docker is executed,
a docker image will be downloaded. This operation might take a while.
Only a single option is permitted.
-h print this help
-k kill rsd
-s start rsd
Exit status:
0 if OK,
1 some error occurred.
Full documentation at: <https://github.com/frnmst/rserve-sandbox>
EOF
}
# Kill ideas (deprecated).
# This addresses only docker containers available to rsd:rsd.
# Simple solution.
# More complex solution requires deleting all containers (running and
# stopped) matching rserve-sandbox-docker
# If this is not done, the hard disk might get full quickly.
# Something like the following might be useful.
#
# containers="$(docker ps -a -f status=exited \
#--format \"{{.ID}}\\t{{.Image}}\" | grep rserve-sandbox-docker)"
# echo "$containers" | awk '{print $1} | xargs docker rm
# Or simply add rm option to the makefile
initialize()
{
# Check if rserve image does not exist.
if [ -z "$(docker images -q "$docker_image_name")" ]; then
printf "This might take a while\n"
make image
fi
}
killd()
{
# kill action only if process exists.
if [ -f "$pid_file" ]; then
pid=$(cat "$pid_file")
ps -q $pid > /dev/null
if [ $? -eq 0 ]; then
make -C "$pkg_dir" stop
fi
fi
}
startd()
{
local pid=""
{
(
cd "$pkg_dir"
initialize && make run
) &
pid="$!"
} 1>/dev/null 2>/dev/null
write_pid_file "$pid"
}
#
# shared_functions.sh
#
# Copyright (C) 2016 frnmst (Franco Masotti) <franco.masotti@student.unife.it>
#
# This file is part of swish-installer.
#
# swish-installer is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# swish-installer is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with swish-installer. If not, see <http://www.gnu.org/licenses/>.
#
#
# This file is used by the various run.sh.
check_running_user_and_group()
{
if [ "$(id -un)" = "$user" ] && [ "$(id -gn)" = "$group" ]; then
:
else
printf "User must be "$user"\n"
printf "Group must be "$group"\n"
return 1
fi
}
write_pid_file()
{
local pid="$1"
if [ -n "$pid" ]; then
printf "Server running with pid $pid\n"
printf "$pid\n" > "$pid_file"
else
printf "Server error\n"
return 1
fi
}
killd()
{
# kill action only if process exists.
if [ -f "$pid_file" ]; then
pid=$(cat "$pid_file")
ps -q $pid > /dev/null
if [ $? -eq 0 ]; then
kill -s TERM $pid
fi
fi
}
option_parser()
{
getopts ":hks" opt "$@"
case "$opt" in
h) help ;;
k) killd ;;
s) startd ;;
?) help; return 1 ;;
esac
}
main()
{
check_running_user_and_group && option_parser "$@"
}
main "$@"
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