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#!/bin/bash
set -e
# Pretend to start a local container. Parameters are ignored but
# required to have the same interface as the other scripts in this
# directory. We check if arch and distro match the local machine's
# values.
# This script is meant to be executed from Jenkins jobs inside TCWG
# lab. It prints shell commands meant to be executed in the parent
# shell, consisting in:
# - definition of ${CONTAINER}, used to prefix commands that you want
# to run inside the container.
# - definition of ${CONTAINER_CLEANUP}, a cleanup statement remove the
# container on exit for instance
# - definition of ${session_host} and ${session_port}, can be used for
# a remote connexion to the container
usage() {
echo "Usage: $0 --arch container-arch --distro flavour [--session-host host] [--session-name name] [--task {build|test}]"
echo "Usage: $0 --arch container-arch --distro flavour [--session-host host] [--session-name name] [--task {build|test}] [--weight weight]"
echo
echo " container-arch: architecture (eg: amd64, i386, arm64, armhf)"
echo " distro: distribution (eg: trusty)"
echo " session-host: hostname where the container will run, defaults to localhost"
echo " useful if the name resolution does not work correctly"
echo " session-name: session, in case the default '$BUILD_NUMBER-$JOB_NAME' is not suitable"
echo " task: type of container (build or test, default=build)"
echo " weight: container weight, reserves resources. Default=1"
exit 1
}
# Save stdout/stderr file descriptors
exec 3>&1 4>&2
# Make sure all output goes to stderr
exec 1>&2
container_arch=
distro=
session_host=
session_name=
task="build"
weight=1
while [ $# -ge 1 ]
do
case $1 in
--arch)
container_arch=$2
[ x${container_arch} = x ] && usage
shift 2
;;
--distro)
distro=$2
[ x${distro} = x ] && usage
shift 2
;;
--session-host)
session_host=$2
[ x${session_host} = x ] && usage
shift 2
;;
--session-name)
session_name=$2
[ x${session_name} = x ] && usage
shift 2
;;
--task)
task=$2
[ x${task} = x ] && usage
shift 2
;;
--weight)
weight=$2
[ x${weight} = x ] && usage
shift 2
;;
*)
echo "Unsupported option: $1"
usage
;;
esac
done
[ x${container_arch} = x ] && usage
[ x${distro} = x ] && usage
case $(uname -m) in
x86_64) my_arch=amd64 ;;
i686) my_arch=i386 ;;
aarch64) my_arch=arm64 ;;
armv7l|armv8l) my_arch=armhf ;;
*) my_arch=$(uname -m) ;;
esac
if [ x${container_arch} != x${my_arch} ]; then
echo "Error: requested container arch (${container_arch}) does not match this machine's arch (${my_arch})"
exit 1
fi
my_distro=$(lsb_release -c | awk '{print $2;}')
if [ x${distro} != x${my_distro} ]; then
echo "Error: requested distro (${distro}) does not match this machine's distro (${my_distro})"
exit 1
fi
if [ x"$DOCKER_HOST" = x"" ]; then
[ x"$session_host" = x ] && session_host=localhost
# Append .tcwglab if not already present
case ${session_host} in
*.tcwglab) ;;
*) session_host=${session_host}.tcwglab
esac
session_port=22
else
session_host="$(echo $DOCKER_HOST | sed -e "s#^tcp://\(.*\):.*#\1#")"
session_port="$(ssh $session_host docker port $DOCKER_CONTAINER_ID 22)"
session_port="$(echo $session_port | cut -d: -f 2)"
fi
# Restore stdout/stderr
exec 1>&3 2>&4
cat <<EOF
ulimit -u 5000 # FIXME: Does not work remotely
CONTAINER="ssh -p ${session_port} ${session_host}"
CONTAINER_CLEANUP=""
session_host=${session_host}
session_port=${session_port}
EOF
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