diff --git a/ct/create_lxc.sh b/ct/create_lxc.sh index 6fd83826..4cf41103 100644 --- a/ct/create_lxc.sh +++ b/ct/create_lxc.sh @@ -5,7 +5,10 @@ # License: MIT # https://github.com/tteck/Proxmox/raw/main/LICENSE +# This sets verbose mode if the global variable is set to "yes" if [ "$VERBOSE" == "yes" ]; then set -x; fi + +# This function sets color variables for formatting output in the terminal YW=$(echo "\033[33m") BL=$(echo "\033[36m") RD=$(echo "\033[01;31m") @@ -15,8 +18,12 @@ CM="${GN}✓${CL}" CROSS="${RD}✗${CL}" BFR="\\r\\033[K" HOLD="-" + +# This sets error handling options and defines the error_handler function to handle errors set -Eeuo pipefail trap 'error_handler $LINENO "$BASH_COMMAND"' ERR + +# This function handles errors function error_handler() { local exit_code="$?" 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${CL}" echo -e "\n$error_message\n" } + +# This function prints an informational message function msg_info() { local msg="$1" echo -ne " ${HOLD} ${YW}${msg}..." } +# This function prints a success message function msg_ok() { local msg="$1" echo -e "${BFR} ${CM} ${GN}${msg}${CL}" } + +# This function prints an error message function msg_error() { local msg="$1" echo -e "${BFR} ${CROSS} ${RD}${msg}${CL}" } +# This checks for the presence of valid Container Storage and Template Storage locations msg_info "Validating Storage" VALIDCT=$(pvesm status -content rootdir | awk 'NR>1') if [ -z "$VALIDCT" ]; then @@ -50,6 +63,7 @@ if [ -z "$VALIDTMP" ]; then exit 1 fi +# This function is used to select the storage class and determine the corresponding storage content type and label. function select_storage() { local CLASS=$1 local CONTENT @@ -65,7 +79,8 @@ function select_storage() { ;; *) false || exit "Invalid storage class." ;; esac - + + # This Queries all storage locations local -a MENU while read -r line; do local TAG=$(echo $line | awk '{print $1}') @@ -78,7 +93,8 @@ function select_storage() { fi MENU+=("$TAG" "$ITEM" "OFF") done < <(pvesm status -content $CONTENT | awk 'NR>1') - + + # Select storage location if [ $((${#MENU[@]} / 3)) -eq 1 ]; then printf ${MENU[0]} else @@ -93,32 +109,40 @@ function select_storage() { fi } +# Test if required variables are set [[ "${CTID:-}" ]] || exit "You need to set 'CTID' 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." +# Test if ID is in use if pct status $CTID &>/dev/null; then echo -e "ID '$CTID' is already in use." unset CTID exit "Cannot use ID that is already in use." fi +# Get template storage TEMPLATE_STORAGE=$(select_storage template) || exit msg_ok "Using ${BL}$TEMPLATE_STORAGE${CL} ${GN}for Template Storage." +# Get container storage CONTAINER_STORAGE=$(select_storage container) || exit msg_ok "Using ${BL}$CONTAINER_STORAGE${CL} ${GN}for Container Storage." +# Update LXC template list msg_info "Updating LXC Template List" pveam update >/dev/null msg_ok "Updated LXC Template List" +# Get LXC template string TEMPLATE_SEARCH=${PCT_OSTYPE}-${PCT_OSVERSION:-} mapfile -t TEMPLATES < <(pveam available -section system | sed -n "s/.*\($TEMPLATE_SEARCH.*\)/\1/p" | sort -t - -k 2 -V) [ ${#TEMPLATES[@]} -gt 0 ] || exit "Unable to find a template when searching for '$TEMPLATE_SEARCH'." TEMPLATE="${TEMPLATES[-1]}" +# Download LXC template if needed if ! pveam list $TEMPLATE_STORAGE | grep -q $TEMPLATE; then msg_info "Downloading LXC Template" 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" fi +# Combine all options DEFAULT_PCT_OPTIONS=( -arch $(dpkg --print-architecture)) PCT_OPTIONS=(${PCT_OPTIONS[@]:-${DEFAULT_PCT_OPTIONS[@]}}) [[ " ${PCT_OPTIONS[@]} " =~ " -rootfs " ]] || PCT_OPTIONS+=(-rootfs $CONTAINER_STORAGE:${PCT_DISK_SIZE:-8}) +# Create container msg_info "Creating LXC Container" pct create $CTID ${TEMPLATE_STORAGE}:vztmpl/${TEMPLATE} ${PCT_OPTIONS[@]} >/dev/null || exit "A problem occured while trying to create container."