feat: add on the fly volume creating and mapping to the host including bind mounting

master
Kebler Network System Administrator 2023-01-21 22:47:00 -08:00
parent 9b90e79d4d
commit 4bc6727f20
1 changed files with 63 additions and 39 deletions

View File

@ -9,22 +9,42 @@
try_container () {
declare -A arch=( ["x86_64"]="" ["aarch64"]="-arm64")
local mp;local cuser; local hmp; local bind; local vname; local prod; local priv
local dkpath; local hostmp; local evar; local hostmap
[[ $# -lt 1 ]] && echo "image name required to try" && return 1
declare OPTION; declare OPTARG; declare OPTIND
OPTIND=0
while getopts 'pt:u:' OPTION; do
while getopts 'pr:t:u:m:h:be:s' OPTION; do
# echo processing: option:$OPTION argument:$OPTARG index:$OPTIND remaining:${@:$OPTIND}
case "$OPTION" in
u)
ruser=$OPTARG
cuser=$OPTARG
;;
b)
bind=true
;;
s)
save=true
;;
m)
mp=$OPTARG
;;
h)
hmp=$OPTARG
;;
e)
evar="-e $OPTARG"
;;
t)
TAG=$OPTARG
;;
TAG=$OPTARG
;;
p)
PROD=$OPTARG
priv=--privileged
;;
r)
prod=$OPTARG
;;
*) echo unknown run option -$OPTARG
echo "USAGE: try <options>"
@ -35,12 +55,13 @@ try_container () {
shift $((OPTIND - 1))
user=${2:-$ruser}
image=$([[ $user ]] && echo ${user}/)$1
[[ ! $1 ]] && echo must supply an image to try && return 1
# :${TAG:-latest}
# user=${2:-$ruser}
image=$1
shift 1
if [[ $PROD ]]; then
if [[ $prod ]]; then
echo removing any local copy of image $image
docker image rm $image
host=prod
@ -53,42 +74,45 @@ try_container () {
name=${image//\//-}
image=$image:${TAG:-latest}
bmount () {
[[ $1 == "-u" ]] && umount=true && shift
declare mp=${1:-opt}
declare dir=${2:-${PWD}/_$mp}
vname=try-$name-$mp
if [[ $umount ]]; then
echo removing volume ....
docker volume rm $vname
echo "volume $vname was removed"
echo "Do you want to also delete the bound volume directory $dir?"
read -n 1 -p "Warning: ALL changes in $mp directory in container will be lost! [y]=>" REPLY
[[ $REPLY != "y" ]] && echo -e "\n" && exit 0
sudo rm -rf $dir
else
mkdir -p $dir
docker volume create --driver local \
docker rm try-$name > /dev/null 2>&1
if [[ $mp ]]; then
if [[ $bind ]];then
dir=$(realpath "${hmp:-${PWD}/mnt/$mp}")
vname="try-$name${dir//\//-}"
mkdir -p $dir
# echo bind $dir to volume $vname
docker volume create --driver local \
--opt type=none \
--opt device=$dir \
--opt o=bind \
$vname
# echo "type=volume,dst=/$mp,volume-driver=local,volume-opt=type=none,volume-opt=o=bind,volume-opt=device=$dir"
--opt o=bind "$vname" > /dev/null
else
vname="try-$name-${mp//\//-}"
hostmap="-e HOST_MAP=$(id -u):$(id -g)"
dkpath=$(docker info | grep -i "Docker Root Dir" | cut -d':' -f2)/volumes/$vname/_data
hostmp=${hmp:-${PWD}/mnt/$mp}
echo via volume $vname
echo linking $dkpath to $hostmp
ln -s $dkpath -T $hostmp
fi
fi
}
echo starting container with image: $image, and name $name
echo at container prompt type \'exit\' to exit from shell and remove trial container
docker rm try-$name > /dev/null 2>&1
docker run -i -t --rm --entrypoint /usr/bin/env --name try-$name --hostname try-$host-$name \
-v "$(bmount)":/opt \
$image \
/bin/bash -l
echo "done with session, removing containter try-$name"
bmount -u
docker run -i -t --rm $priv $evar $hostmap --entrypoint /opt/scripts/entrypoint.sh \
$([[ $cuser ]] && echo "--user $cuser") \
--name try-$name --hostname try-$host-$name \
$([[ $mp ]] && echo "-v $vname:/$mp") \
"$image" \
"$@"
echo "done with session, removing containter try-$name"
if [[ $mp ]]; then
if [[ ! $save ]]; then
echo removing volume $vname used for mapping
docker volume rm $vname > /dev/null
[[ ! $bind ]] && [[ -h $hostmp ]] && echo "removing link at $hostmp" && rm $hostmp
fi
fi
}