Update create_lxc.sh
added code descriptions
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tteckster
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1 changed files with 28 additions and 2 deletions
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@ -5,7 +5,10 @@
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# License: MIT
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# https://github.com/tteck/Proxmox/raw/main/LICENSE
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# This sets verbose mode if the global variable is set to "yes"
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if [ "$VERBOSE" == "yes" ]; then set -x; fi
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# This function sets color variables for formatting output in the terminal
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YW=$(echo "\033[33m")
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BL=$(echo "\033[36m")
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RD=$(echo "\033[01;31m")
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@ -15,8 +18,12 @@ CM="${GN}✓${CL}"
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CROSS="${RD}✗${CL}"
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BFR="\\r\\033[K"
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HOLD="-"
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# This sets error handling options and defines the error_handler function to handle errors
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set -Eeuo pipefail
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trap 'error_handler $LINENO "$BASH_COMMAND"' ERR
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# This function handles errors
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function error_handler() {
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local exit_code="$?"
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local line_number="$1"
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@ -24,20 +31,26 @@ function error_handler() {
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local error_message="${RD}[ERROR]${CL} in line ${RD}$line_number${CL}: exit code ${RD}$exit_code${CL}: while executing command ${YW}$command${CL}"
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echo -e "\n$error_message\n"
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}
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# This function prints an informational message
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function msg_info() {
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local msg="$1"
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echo -ne " ${HOLD} ${YW}${msg}..."
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}
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# This function prints a success message
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function msg_ok() {
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local msg="$1"
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echo -e "${BFR} ${CM} ${GN}${msg}${CL}"
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}
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# This function prints an error message
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function msg_error() {
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local msg="$1"
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echo -e "${BFR} ${CROSS} ${RD}${msg}${CL}"
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}
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# This checks for the presence of valid Container Storage and Template Storage locations
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msg_info "Validating Storage"
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VALIDCT=$(pvesm status -content rootdir | awk 'NR>1')
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if [ -z "$VALIDCT" ]; then
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@ -50,6 +63,7 @@ if [ -z "$VALIDTMP" ]; then
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exit 1
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fi
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# This function is used to select the storage class and determine the corresponding storage content type and label.
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function select_storage() {
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local CLASS=$1
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local CONTENT
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@ -65,7 +79,8 @@ function select_storage() {
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;;
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*) false || exit "Invalid storage class." ;;
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esac
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# This Queries all storage locations
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local -a MENU
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while read -r line; do
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local TAG=$(echo $line | awk '{print $1}')
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@ -78,7 +93,8 @@ function select_storage() {
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fi
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MENU+=("$TAG" "$ITEM" "OFF")
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done < <(pvesm status -content $CONTENT | awk 'NR>1')
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# Select storage location
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if [ $((${#MENU[@]} / 3)) -eq 1 ]; then
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printf ${MENU[0]}
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else
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@ -93,32 +109,40 @@ function select_storage() {
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fi
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}
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# Test if required variables are set
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[[ "${CTID:-}" ]] || exit "You need to set 'CTID' variable."
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[[ "${PCT_OSTYPE:-}" ]] || exit "You need to set 'PCT_OSTYPE' variable."
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# Test if ID is valid
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[ "$CTID" -ge "100" ] || exit "ID cannot be less than 100."
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# Test if ID is in use
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if pct status $CTID &>/dev/null; then
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echo -e "ID '$CTID' is already in use."
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unset CTID
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exit "Cannot use ID that is already in use."
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fi
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# Get template storage
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TEMPLATE_STORAGE=$(select_storage template) || exit
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msg_ok "Using ${BL}$TEMPLATE_STORAGE${CL} ${GN}for Template Storage."
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# Get container storage
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CONTAINER_STORAGE=$(select_storage container) || exit
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msg_ok "Using ${BL}$CONTAINER_STORAGE${CL} ${GN}for Container Storage."
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# Update LXC template list
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msg_info "Updating LXC Template List"
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pveam update >/dev/null
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msg_ok "Updated LXC Template List"
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# Get LXC template string
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TEMPLATE_SEARCH=${PCT_OSTYPE}-${PCT_OSVERSION:-}
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mapfile -t TEMPLATES < <(pveam available -section system | sed -n "s/.*\($TEMPLATE_SEARCH.*\)/\1/p" | sort -t - -k 2 -V)
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[ ${#TEMPLATES[@]} -gt 0 ] || exit "Unable to find a template when searching for '$TEMPLATE_SEARCH'."
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TEMPLATE="${TEMPLATES[-1]}"
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# Download LXC template if needed
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if ! pveam list $TEMPLATE_STORAGE | grep -q $TEMPLATE; then
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msg_info "Downloading LXC Template"
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pveam download $TEMPLATE_STORAGE $TEMPLATE >/dev/null ||
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@ -126,12 +150,14 @@ if ! pveam list $TEMPLATE_STORAGE | grep -q $TEMPLATE; then
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msg_ok "Downloaded LXC Template"
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fi
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# Combine all options
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DEFAULT_PCT_OPTIONS=(
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-arch $(dpkg --print-architecture))
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PCT_OPTIONS=(${PCT_OPTIONS[@]:-${DEFAULT_PCT_OPTIONS[@]}})
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[[ " ${PCT_OPTIONS[@]} " =~ " -rootfs " ]] || PCT_OPTIONS+=(-rootfs $CONTAINER_STORAGE:${PCT_DISK_SIZE:-8})
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# Create container
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msg_info "Creating LXC Container"
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pct create $CTID ${TEMPLATE_STORAGE}:vztmpl/${TEMPLATE} ${PCT_OPTIONS[@]} >/dev/null ||
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exit "A problem occured while trying to create container."
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