Update create_lxc.sh

added code descriptions
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tteckster 2023-05-15 19:15:26 -04:00 committed by GitHub
parent 3a06811e01
commit caea206144
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@ -5,7 +5,10 @@
# License: MIT # License: MIT
# https://github.com/tteck/Proxmox/raw/main/LICENSE # https://github.com/tteck/Proxmox/raw/main/LICENSE
# This sets verbose mode if the global variable is set to "yes"
if [ "$VERBOSE" == "yes" ]; then set -x; fi if [ "$VERBOSE" == "yes" ]; then set -x; fi
# This function sets color variables for formatting output in the terminal
YW=$(echo "\033[33m") YW=$(echo "\033[33m")
BL=$(echo "\033[36m") BL=$(echo "\033[36m")
RD=$(echo "\033[01;31m") RD=$(echo "\033[01;31m")
@ -15,8 +18,12 @@ CM="${GN}✓${CL}"
CROSS="${RD}${CL}" CROSS="${RD}${CL}"
BFR="\\r\\033[K" BFR="\\r\\033[K"
HOLD="-" HOLD="-"
# This sets error handling options and defines the error_handler function to handle errors
set -Eeuo pipefail set -Eeuo pipefail
trap 'error_handler $LINENO "$BASH_COMMAND"' ERR trap 'error_handler $LINENO "$BASH_COMMAND"' ERR
# This function handles errors
function error_handler() { function error_handler() {
local exit_code="$?" local exit_code="$?"
local line_number="$1" local line_number="$1"
@ -24,20 +31,26 @@ function error_handler() {
local error_message="${RD}[ERROR]${CL} in line ${RD}$line_number${CL}: exit code ${RD}$exit_code${CL}: while executing command ${YW}$command${CL}" local error_message="${RD}[ERROR]${CL} in line ${RD}$line_number${CL}: exit code ${RD}$exit_code${CL}: while executing command ${YW}$command${CL}"
echo -e "\n$error_message\n" echo -e "\n$error_message\n"
} }
# This function prints an informational message
function msg_info() { function msg_info() {
local msg="$1" local msg="$1"
echo -ne " ${HOLD} ${YW}${msg}..." echo -ne " ${HOLD} ${YW}${msg}..."
} }
# This function prints a success message
function msg_ok() { function msg_ok() {
local msg="$1" local msg="$1"
echo -e "${BFR} ${CM} ${GN}${msg}${CL}" echo -e "${BFR} ${CM} ${GN}${msg}${CL}"
} }
# This function prints an error message
function msg_error() { function msg_error() {
local msg="$1" local msg="$1"
echo -e "${BFR} ${CROSS} ${RD}${msg}${CL}" echo -e "${BFR} ${CROSS} ${RD}${msg}${CL}"
} }
# This checks for the presence of valid Container Storage and Template Storage locations
msg_info "Validating Storage" msg_info "Validating Storage"
VALIDCT=$(pvesm status -content rootdir | awk 'NR>1') VALIDCT=$(pvesm status -content rootdir | awk 'NR>1')
if [ -z "$VALIDCT" ]; then if [ -z "$VALIDCT" ]; then
@ -50,6 +63,7 @@ if [ -z "$VALIDTMP" ]; then
exit 1 exit 1
fi fi
# This function is used to select the storage class and determine the corresponding storage content type and label.
function select_storage() { function select_storage() {
local CLASS=$1 local CLASS=$1
local CONTENT local CONTENT
@ -66,6 +80,7 @@ function select_storage() {
*) false || exit "Invalid storage class." ;; *) false || exit "Invalid storage class." ;;
esac esac
# This Queries all storage locations
local -a MENU local -a MENU
while read -r line; do while read -r line; do
local TAG=$(echo $line | awk '{print $1}') local TAG=$(echo $line | awk '{print $1}')
@ -79,6 +94,7 @@ function select_storage() {
MENU+=("$TAG" "$ITEM" "OFF") MENU+=("$TAG" "$ITEM" "OFF")
done < <(pvesm status -content $CONTENT | awk 'NR>1') done < <(pvesm status -content $CONTENT | awk 'NR>1')
# Select storage location
if [ $((${#MENU[@]} / 3)) -eq 1 ]; then if [ $((${#MENU[@]} / 3)) -eq 1 ]; then
printf ${MENU[0]} printf ${MENU[0]}
else else
@ -93,32 +109,40 @@ function select_storage() {
fi fi
} }
# Test if required variables are set
[[ "${CTID:-}" ]] || exit "You need to set 'CTID' variable." [[ "${CTID:-}" ]] || exit "You need to set 'CTID' variable."
[[ "${PCT_OSTYPE:-}" ]] || exit "You need to set 'PCT_OSTYPE' variable." [[ "${PCT_OSTYPE:-}" ]] || exit "You need to set 'PCT_OSTYPE' variable."
# Test if ID is valid
[ "$CTID" -ge "100" ] || exit "ID cannot be less than 100." [ "$CTID" -ge "100" ] || exit "ID cannot be less than 100."
# Test if ID is in use
if pct status $CTID &>/dev/null; then if pct status $CTID &>/dev/null; then
echo -e "ID '$CTID' is already in use." echo -e "ID '$CTID' is already in use."
unset CTID unset CTID
exit "Cannot use ID that is already in use." exit "Cannot use ID that is already in use."
fi fi
# Get template storage
TEMPLATE_STORAGE=$(select_storage template) || exit TEMPLATE_STORAGE=$(select_storage template) || exit
msg_ok "Using ${BL}$TEMPLATE_STORAGE${CL} ${GN}for Template Storage." msg_ok "Using ${BL}$TEMPLATE_STORAGE${CL} ${GN}for Template Storage."
# Get container storage
CONTAINER_STORAGE=$(select_storage container) || exit CONTAINER_STORAGE=$(select_storage container) || exit
msg_ok "Using ${BL}$CONTAINER_STORAGE${CL} ${GN}for Container Storage." msg_ok "Using ${BL}$CONTAINER_STORAGE${CL} ${GN}for Container Storage."
# Update LXC template list
msg_info "Updating LXC Template List" msg_info "Updating LXC Template List"
pveam update >/dev/null pveam update >/dev/null
msg_ok "Updated LXC Template List" msg_ok "Updated LXC Template List"
# Get LXC template string
TEMPLATE_SEARCH=${PCT_OSTYPE}-${PCT_OSVERSION:-} TEMPLATE_SEARCH=${PCT_OSTYPE}-${PCT_OSVERSION:-}
mapfile -t TEMPLATES < <(pveam available -section system | sed -n "s/.*\($TEMPLATE_SEARCH.*\)/\1/p" | sort -t - -k 2 -V) mapfile -t TEMPLATES < <(pveam available -section system | sed -n "s/.*\($TEMPLATE_SEARCH.*\)/\1/p" | sort -t - -k 2 -V)
[ ${#TEMPLATES[@]} -gt 0 ] || exit "Unable to find a template when searching for '$TEMPLATE_SEARCH'." [ ${#TEMPLATES[@]} -gt 0 ] || exit "Unable to find a template when searching for '$TEMPLATE_SEARCH'."
TEMPLATE="${TEMPLATES[-1]}" TEMPLATE="${TEMPLATES[-1]}"
# Download LXC template if needed
if ! pveam list $TEMPLATE_STORAGE | grep -q $TEMPLATE; then if ! pveam list $TEMPLATE_STORAGE | grep -q $TEMPLATE; then
msg_info "Downloading LXC Template" msg_info "Downloading LXC Template"
pveam download $TEMPLATE_STORAGE $TEMPLATE >/dev/null || pveam download $TEMPLATE_STORAGE $TEMPLATE >/dev/null ||
@ -126,12 +150,14 @@ if ! pveam list $TEMPLATE_STORAGE | grep -q $TEMPLATE; then
msg_ok "Downloaded LXC Template" msg_ok "Downloaded LXC Template"
fi fi
# Combine all options
DEFAULT_PCT_OPTIONS=( DEFAULT_PCT_OPTIONS=(
-arch $(dpkg --print-architecture)) -arch $(dpkg --print-architecture))
PCT_OPTIONS=(${PCT_OPTIONS[@]:-${DEFAULT_PCT_OPTIONS[@]}}) PCT_OPTIONS=(${PCT_OPTIONS[@]:-${DEFAULT_PCT_OPTIONS[@]}})
[[ " ${PCT_OPTIONS[@]} " =~ " -rootfs " ]] || PCT_OPTIONS+=(-rootfs $CONTAINER_STORAGE:${PCT_DISK_SIZE:-8}) [[ " ${PCT_OPTIONS[@]} " =~ " -rootfs " ]] || PCT_OPTIONS+=(-rootfs $CONTAINER_STORAGE:${PCT_DISK_SIZE:-8})
# Create container
msg_info "Creating LXC Container" msg_info "Creating LXC Container"
pct create $CTID ${TEMPLATE_STORAGE}:vztmpl/${TEMPLATE} ${PCT_OPTIONS[@]} >/dev/null || pct create $CTID ${TEMPLATE_STORAGE}:vztmpl/${TEMPLATE} ${PCT_OPTIONS[@]} >/dev/null ||
exit "A problem occured while trying to create container." exit "A problem occured while trying to create container."