searxng/utils/lxc.sh

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#!/usr/bin/env bash
# -*- coding: utf-8; mode: sh indent-tabs-mode: nil -*-
# SPDX-License-Identifier: AGPL-3.0-or-later
# shellcheck source=utils/lib.sh
source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
source_dot_config
# ----------------------------------------------------------------------------
# config
# ----------------------------------------------------------------------------
# name of https://images.linuxcontainers.org
LINUXCONTAINERS_ORG_NAME="${LINUXCONTAINERS_ORG_NAME:-images}"
HOST_PREFIX="${HOST_PREFIX:-searx}"
TEST_IMAGES=(
"$LINUXCONTAINERS_ORG_NAME:ubuntu/18.04" "ubu1804"
"$LINUXCONTAINERS_ORG_NAME:ubuntu/19.04" "ubu1904"
"$LINUXCONTAINERS_ORG_NAME:archlinux" "archlinux"
#"$LINUXCONTAINERS_ORG_NAME:fedora/31" "fedora31"
#"ubuntu-minimal:18.04" "ubu1804"
#"ubuntu-minimal:19.10" "ubu1910"
)
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]}")
done
# ----------------------------------------------------------------------------
usage() {
# ----------------------------------------------------------------------------
cat <<EOF
usage::
$(basename "$0") build [hosts]
$(basename "$0") delete [hosts]
build / delete
build and/or delete all LXC hosts
all LXC hosts:
${LOCAL_IMAGES[@]}
EOF
[ ! -z "${1+x}" ] && err_msg "$1"
}
main() {
rst_title "LXC tooling box" part
required_commands lxc || exit
local _usage="unknown or missing $1 command $2"
case $1 in
--source-only) ;;
-h|--help) usage; exit 0;;
build)
sudo_or_exit
case $2 in
hosts) build_instances ;;
*) usage "$_usage"; exit 42;;
esac ;;
delete)
sudo_or_exit
case $2 in
hosts) delete_instances ;;
*) usage "$_usage"; exit 42;;
esac ;;
*)
usage "unknown or missing command $1"; exit 42;;
esac
}
build_instances() {
rst_title "Build LXC instances"
lxc_copy_images_localy
lxc_init_containers
err_msg "WIP / sorry, not implemented yet :o"
}
delete_instances() {
rst_title "Delete LXC instances"
echo -en "\\nLXC hosts(s)::\\n\\n ${LOCAL_IMAGES[*]}\\n" | $FMT
if ask_yn "Do you really want to delete all images"; then
lxc_delete_containers
fi
}
lxc_copy_images_localy() {
echo
for ((i=0; i<${#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 "${TEST_IMAGES[i+1]}" prefix_stdout
fi
done
#lxc image list local:
}
lxc_delete_images_localy() {
echo
for i in "${LOCAL_IMAGES[@]}"; do
info_msg "delete image 'local:$i'"
lxc image delete "local:$i"
done
#lxc image list local:
}
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"
else
info_msg "create conatiner instance: $HOST_PREFIX-$i"
lxc init "local:$i" "$HOST_PREFIX-$i"
fi
done
#lxc list "$HOST_PREFIX"
}
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-$i" | prefix_stdout
else
warn_msg "instance '$HOST_PREFIX-$i' does not exist / can't delete :o"
fi
done
#lxc list "$HOST_PREFIX"
}
# ----------------------------------------------------------------------------
main "$@"
# ----------------------------------------------------------------------------