Commit e8cf2250 authored by Markus Heiser's avatar Markus Heiser

LXC: tooling box - add boilerplate to containers

Signed-off-by: default avatarMarkus Heiser <markus.heiser@darmarit.de>
parent 0b2b3255
......@@ -27,12 +27,18 @@ TEST_IMAGES=(
#"$LINUXCONTAINERS_ORG_NAME:fedora/31" "fedora31"
)
ubu1804_boilerplate="
export DEBIAN_FRONTEND=noninteractive
apt-get install -y git curl wget
"
ubu1904_boilerplate="$ubu1804_boilerplate"
REMOTE_IMAGES=()
LOCAL_IMAGES=()
for ((i=0; i<${#TEST_IMAGES[@]}; i+=2)); do
REMOTE_IMAGES=("${REMOTE_IMAGES[@]}" "${TEST_IMAGES[i]}")
LOCAL_IMAGES=("${LOCAL_IMAGES[@]}" "${TEST_IMAGES[i+1]}")
LOCAL_IMAGES=("${LOCAL_IMAGES[@]}" "${HOST_PREFIX}-${TEST_IMAGES[i+1]}")
done
HOST_USER="${SUDO_USER:-$USER}"
......@@ -72,9 +78,26 @@ EOF
[ ! -z "${1+x}" ] && err_msg "$1"
}
lxd_info() {
cat <<EOF
LXD is needed, to install run::
snap install lxd
lxc init --auto
EOF
}
main() {
required_commands lxc || exit
local exit_val
if ! required_commands lxc; then
lxd_info
exit 42
fi
local _usage="unknown or missing $1 command $2"
......@@ -118,8 +141,13 @@ main() {
sudo_or_exit
shift
for i in "${LOCAL_IMAGES[@]}"; do
info_msg "lxc exec ${_BBlue}${HOST_PREFIX}-${i}${_creset} -- ${_BGreen}${*}${_creset}"
lxc exec "${HOST_PREFIX}-${i}" -- "$@"
info_msg "call ${_BBlue}${i}${_creset} -- ${_BGreen}${*}${_creset}"
wait_key 3
lxc exec "${i}" -- "$@"
exit_val=$?
if [ $exit_val -ne 0 ]; then
err_msg "$exit_val ${_BBlue}${i}${_creset} -- ${_BGreen}${*}${_creset}"
fi
done
;;
*)
......@@ -129,10 +157,18 @@ main() {
build_instances() {
rst_title "Build LXC instances"
rst_title "copy images" section
echo
lxc_copy_images_localy
#lxc image list local: && wait_key
lxc image list local: && wait_key
echo
rst_title "build containers" section
echo
lxc_init_containers
lxc_config_containers
lxc_boilerplate_containers
echo
lxc list "$HOST_PREFIX"
}
......@@ -142,7 +178,8 @@ delete_instances() {
if ask_yn "Do you really want to delete all images"; then
lxc_delete_containers
fi
# lxc list "$HOST_PREFIX"
echo
lxc list "$HOST_PREFIX"
# lxc image list local: && wait_key
}
......@@ -150,14 +187,13 @@ delete_instances() {
# ------
lxc_copy_images_localy() {
echo
for ((i=0; i<${#TEST_IMAGES[@]}; i+=2)); do
if lxc image info "local:${TEST_IMAGES[i+1]}" &>/dev/null; then
info_msg "image ${TEST_IMAGES[i]} already copied --> ${TEST_IMAGES[i+1]}"
else
info_msg "copy image locally ${TEST_IMAGES[i]} --> ${TEST_IMAGES[i+1]}"
lxc image copy "${TEST_IMAGES[i]}" local: \
--alias "${TEST_IMAGES[i+1]}" prefix_stdout
--alias "${TEST_IMAGES[i+1]}" | prefix_stdout
fi
done
}
......@@ -175,53 +211,68 @@ lxc_delete_images_localy() {
# ---------
lxc_cmd() {
echo
for i in "${LOCAL_IMAGES[@]}"; do
info_msg "lxc $* $HOST_PREFIX-$i"
lxc "$@" "$HOST_PREFIX-$i"
info_msg "lxc $* $i"
lxc "$@" "$i"
done
}
lxc_init_containers() {
echo
for i in "${LOCAL_IMAGES[@]}"; do
if lxc info "$HOST_PREFIX-$i" &>/dev/null; then
info_msg "conatiner '$HOST_PREFIX-$i' already exists"
if lxc info "$i" &>/dev/null; then
info_msg "conatiner '$i' already exists"
else
info_msg "create conatiner instance: $HOST_PREFIX-$i"
lxc init "local:$i" "$HOST_PREFIX-$i"
info_msg "create conatiner instance: $i"
lxc init "local:$i" "$i"
fi
done
}
lxc_config_containers() {
echo
for i in "${LOCAL_IMAGES[@]}"; do
info_msg "configure container: ${_BBlue}${i}${_creset}"
info_msg "map uid/gid from host to conatiner: $HOST_PREFIX-$i"
info_msg "map uid/gid from host to container"
# https://lxd.readthedocs.io/en/latest/userns-idmap/#custom-idmaps
echo -e -n "uid $HOST_USER_ID 1000\\ngid $HOST_GROUP_ID 1000"\
| lxc config set "$HOST_PREFIX-$i" raw.idmap -
| lxc config set "$i" raw.idmap -
info_msg "share ${REPO_ROOT} (repo_share) from HOST into container: $HOST_PREFIX-$i"
info_msg "share ${REPO_ROOT} (repo_share) from HOST into container"
# https://lxd.readthedocs.io/en/latest/instances/#type-disk
lxc config device add "$HOST_PREFIX-$i" repo_share disk \
lxc config device add "$i" repo_share disk \
source="${REPO_ROOT}" \
path="/share/$(basename "${REPO_ROOT}")"
path="/share/$(basename "${REPO_ROOT}")" &>/dev/null
# lxc config show "$i" && wait_key
done
}
# lxc config show "$HOST_PREFIX-$i" && wait_key
lxc_boilerplate_containers() {
local shortname
local boilerplate_script
for ((i=0; i<${#TEST_IMAGES[@]}; i+=2)); do
shortname="${TEST_IMAGES[i+1]}"
info_msg "install boilerplate: ${_BBlue}${HOST_PREFIX}-${shortname}${_creset}"
lxc start -q "${HOST_PREFIX}-${shortname}" &>/dev/null
boilerplate_script="${shortname}_boilerplate"
boilerplate_script="${!boilerplate_script}"
if [[ ! -z "${boilerplate_script}" ]]; then
echo "$boilerplate_script" \
| lxc exec "${HOST_PREFIX}-${shortname}" -- bash \
| prefix_stdout " ${HOST_PREFIX}-${shortname} | "
else
warn_msg "no boilerplate for instance '$i'"
fi
done
}
lxc_delete_containers() {
echo
for i in "${LOCAL_IMAGES[@]}"; do
if lxc info "$HOST_PREFIX-$i" &>/dev/null; then
info_msg "stop & delete instance '$HOST_PREFIX-$i'"
lxc stop "$HOST_PREFIX-$i" &>/dev/null
lxc delete "$HOST_PREFIX-$i" | prefix_stdout
if lxc info "$i" &>/dev/null; then
info_msg "stop & delete instance '$i'"
lxc stop "$i" &>/dev/null
lxc delete "$i" | prefix_stdout
else
warn_msg "instance '$HOST_PREFIX-$i' does not exist / can't delete :o"
warn_msg "instance '$i' does not exist / can't delete :o"
fi
done
}
......
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