mirror of https://github.com/apache/cloudstack.git
Add cloud image downloader script (#11918)
This commit is contained in:
Manoj Kumar
GitHub
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#!/usr/bin/env bash
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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#-------------------------------------------------------------------------------
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# Configuration
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#-------------------------------------------------------------------------------
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# This section contains the variables you might want to change.
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# The temporary directory where files will be downloaded.
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# It's a good practice to create a unique temporary directory for each script run.
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TEMP_DIR=$(mktemp -d)
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# The BASE destination directory for the downloaded image files.
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# Subdirectories for each distro will be created inside this one.
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# Make sure this directory exists before running the script.
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# Must be executed by the cloudstack user on machine hosting the public download site.
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# It will be publicly available at https://download.cloudstack.org/templates/cloud-images/
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DEST_DIR="${HOME}/repository/templates/cloud-images"
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# The directory where log files will be stored.
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# Make sure this directory exists.
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LOG_DIR="${HOME}/log/cloud-image-downloader"
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LOG_FILE="${LOG_DIR}/cloud-image-downloader_$(date +%Y%m%d_%H%M%S).log"
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LOG_RETENTION_DAYS=30
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LOGGER_TAG="cloud-image-downloader"
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LOGGER_FACILITY="user"
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LOGGER_AVAILABLE=false
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log_message() {
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local priority=$1
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shift
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local message="$*"
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local timestamp=$(date +'%Y-%m-%d %H:%M:%S')
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# Log to file
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echo "${timestamp} [${priority}] ${message}" | tee -a "${LOG_FILE}"
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# Log to syslog using logger utility
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if [ "${LOGGER_AVAILABLE}" = true ]; then
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logger -t "${LOGGER_TAG}" -p "${LOGGER_FACILITY}.${priority}" -- "${message}"
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fi
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}
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log_info() {
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log_message "info" "$@"
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}
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log_warn() {
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log_message "warning" "$@"
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}
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log_error() {
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log_message "err" "$@"
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}
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cleanup_old_logs() {
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log_info "Cleaning up log files older than ${LOG_RETENTION_DAYS} days..."
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if [ ! -d "$LOG_DIR" ]; then
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log_warn "Log directory does not exist: $LOG_DIR"
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return
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fi
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local deleted_count=0
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# Find and delete log files older than retention period
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while IFS= read -r -d '' log_file; do
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rm -f "$log_file"
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deleted_count=$((deleted_count + 1))
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done < <(find "$LOG_DIR" -name "*.log" -type f -mtime +${LOG_RETENTION_DAYS} -print0 2>/dev/null)
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if [ $deleted_count -gt 0 ]; then
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log_info "Deleted $deleted_count old log file(s)"
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else
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log_info "No old log files to delete"
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fi
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}
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#-------------------------------------------------------------------------------
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# Image Definitions
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#-------------------------------------------------------------------------------
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# To add a new image, you must add an entry to BOTH arrays below.
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# 1. Add the destination filename and the download URL.
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declare -A IMAGE_URLS=(
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["Rocky-9-GenericCloud.latest.x86_64.qcow2"]="https://dl.rockylinux.org/pub/rocky/9/images/x86_64/Rocky-9-GenericCloud.latest.x86_64.qcow2"
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["Rocky-9-GenericCloud.latest.aarch64.qcow2"]="https://dl.rockylinux.org/pub/rocky/9/images/aarch64/Rocky-9-GenericCloud.latest.aarch64.qcow2"
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["Rocky-8-GenericCloud.latest.x86_64.qcow2"]="https://dl.rockylinux.org/pub/rocky/8/images/x86_64/Rocky-8-GenericCloud.latest.x86_64.qcow2"
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["Rocky-8-GenericCloud.latest.aarch64.qcow2"]="https://dl.rockylinux.org/pub/rocky/8/images/aarch64/Rocky-8-GenericCloud.latest.aarch64.qcow2"
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["openSUSE-Leap-15.5-Minimal-VM.x86_64-Cloud.qcow2"]="https://download.opensuse.org/distribution/leap/15.5/appliances/openSUSE-Leap-15.5-Minimal-VM.x86_64-Cloud.qcow2"
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["openSUSE-Leap-15.5-Minimal-VM.aarch64-Cloud.qcow2"]="https://download.opensuse.org/distribution/leap/15.5/appliances/openSUSE-Leap-15.5-Minimal-VM.aarch64-Cloud.qcow2"
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["debian-12-genericcloud-amd64.qcow2"]="https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-genericcloud-amd64.qcow2"
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["debian-12-genericcloud-arm64.qcow2"]="https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-genericcloud-arm64.qcow2"
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["ubuntu-24.04-server-cloudimg-amd64.img"]="https://cloud-images.ubuntu.com/releases/24.04/release/ubuntu-24.04-server-cloudimg-amd64.img"
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["ubuntu-24.04-server-cloudimg-arm64.img"]="https://cloud-images.ubuntu.com/releases/24.04/release/ubuntu-24.04-server-cloudimg-arm64.img"
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["ubuntu-22.04-server-cloudimg-amd64.img"]="https://cloud-images.ubuntu.com/releases/22.04/release/ubuntu-22.04-server-cloudimg-amd64.img"
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["ubuntu-22.04-server-cloudimg-arm64.img"]="https://cloud-images.ubuntu.com/releases/22.04/release/ubuntu-22.04-server-cloudimg-arm64.img"
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["ubuntu-20.04-server-cloudimg-amd64.img"]="https://cloud-images.ubuntu.com/releases/20.04/release/ubuntu-20.04-server-cloudimg-amd64.img"
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["ubuntu-20.04-server-cloudimg-arm64.img"]="https://cloud-images.ubuntu.com/releases/20.04/release/ubuntu-20.04-server-cloudimg-arm64.img"
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["OL9U5_x86_64-kvm-b259.qcow2"]="https://yum.oracle.com/templates/OracleLinux/OL9/u5/x86_64/OL9U5_x86_64-kvm-b259.qcow2"
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["OL9U5_aarch64-kvm-b126.qcow2"]="https://yum.oracle.com/templates/OracleLinux/OL9/u5/aarch64/OL9U5_aarch64-kvm-b126.qcow2"
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["OL8U10_x86_64-kvm-b258.qcow2"]="https://yum.oracle.com/templates/OracleLinux/OL8/u10/x86_64/OL8U10_x86_64-kvm-b258.qcow2"
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["OL8U10_aarch64-kvm-b122.qcow2"]="https://yum.oracle.com/templates/OracleLinux/OL8/u10/aarch64/OL8U10_aarch64-kvm-b122.qcow2"
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)
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# 2. Add the destination filename and its corresponding distribution subdirectory name.
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declare -A IMAGE_DISTROS=(
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["Rocky-9-GenericCloud.latest.x86_64.qcow2"]="rockylinux"
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["Rocky-9-GenericCloud.latest.aarch64.qcow2"]="rockylinux"
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["Rocky-8-GenericCloud.latest.x86_64.qcow2"]="rockylinux"
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["Rocky-8-GenericCloud.latest.aarch64.qcow2"]="rockylinux"
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["openSUSE-Leap-15.5-Minimal-VM.x86_64-Cloud.qcow2"]="opensuse"
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["openSUSE-Leap-15.5-Minimal-VM.aarch64-Cloud.qcow2"]="opensuse"
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["debian-12-genericcloud-amd64.qcow2"]="debian"
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["debian-12-genericcloud-arm64.qcow2"]="debian"
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["ubuntu-24.04-server-cloudimg-amd64.img"]="ubuntu"
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["ubuntu-24.04-server-cloudimg-arm64.img"]="ubuntu"
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["ubuntu-22.04-server-cloudimg-amd64.img"]="ubuntu"
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["ubuntu-22.04-server-cloudimg-arm64.img"]="ubuntu"
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["ubuntu-20.04-server-cloudimg-amd64.img"]="ubuntu"
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["ubuntu-20.04-server-cloudimg-arm64.img"]="ubuntu"
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["OL9U5_x86_64-kvm-b259.qcow2"]="oraclelinux"
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["OL9U5_aarch64-kvm-b126.qcow2"]="oraclelinux"
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["OL8U10_x86_64-kvm-b258.qcow2"]="oraclelinux"
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["OL8U10_aarch64-kvm-b122.qcow2"]="oraclelinux"
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)
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#-------------------------------------------------------------------------------
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# Cleanup Handler
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#-------------------------------------------------------------------------------
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cleanup_on_exit() {
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local exit_code=$?
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if [ -d "$TEMP_DIR" ]; then
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rm -rf "$TEMP_DIR"
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log_info "Temporary directory $TEMP_DIR removed."
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fi
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if [ $exit_code -ne 0 ]; then
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log_error "Script exited with error code: $exit_code"
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fi
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}
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trap cleanup_on_exit EXIT INT TERM
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#-------------------------------------------------------------------------------
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# Main Script Logic
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#-------------------------------------------------------------------------------
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if command -v logger &> /dev/null; then
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LOGGER_AVAILABLE=true
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fi
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# Ensure base destination and log directories exist
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mkdir -p "$DEST_DIR"
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mkdir -p "$LOG_DIR"
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# Clean up old logs first
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cleanup_old_logs
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log_info "Starting image download process."
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log_info "Temporary directory: $TEMP_DIR"
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log_info "Base destination directory: $DEST_DIR"
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log_info "Log file: $LOG_FILE"
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# Inform about logger status
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if [ "${LOGGER_AVAILABLE}" = true ]; then
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log_info "Syslog logging enabled (tag: ${LOGGER_TAG})"
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else
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log_warn "Syslog logging disabled - logger utility not found"
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fi
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# Loop through the image URLs
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for filename in "${!IMAGE_URLS[@]}"; do
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url="${IMAGE_URLS[$filename]}"
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distro="${IMAGE_DISTROS[$filename]}"
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# Check if a distro is defined for the file
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if [ -z "$distro" ]; then
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log_error "No distribution directory defined for $filename. Skipping."
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continue
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fi
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distro_dest_dir="${DEST_DIR}/${distro}"
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temp_filepath="${TEMP_DIR}/${filename}"
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dest_filepath="${distro_dest_dir}/${filename}"
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log_info "--------------------------------------------------"
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log_info "Starting download for: $filename"
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log_info "URL: $url"
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# Download the file to the temporary directory
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wget --progress=bar:force:noscroll -O "$temp_filepath" "$url"
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download_status=$?
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if [ $download_status -ne 0 ]; then
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# Handle download failure
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log_error "Failed to download $filename from $url. wget exit code: $download_status"
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else
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# Handle download success
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log_info "Successfully downloaded $filename to temporary location."
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# Ensure the specific distro directory exists
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log_info "Ensuring destination directory exists: $distro_dest_dir"
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mkdir -p "$distro_dest_dir"
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# Move the file to the destination directory, replacing any existing file
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log_info "Moving $filename to $dest_filepath"
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mv -f "$temp_filepath" "$dest_filepath"
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move_status=$?
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if [ $move_status -ne 0 ]; then
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log_error "Failed to move $filename to $dest_filepath. mv exit code: $move_status"
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else
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log_info "Successfully moved $filename."
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fi
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fi
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done
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log_info "Generate checksum"
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# Create md5 checksum
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checksum_file="md5sum.txt"
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sha512_checksum_file="sha512sum.txt"
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cd "$DEST_DIR"
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find . -type f ! -iname '*.txt' -exec md5sum {} \; > "$checksum_file"
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checksum_status=$?
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if [ $checksum_status -ne 0 ]; then
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log_error "Failed to create md5 checksum. md5sum exit code: $checksum_status"
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else
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log_info "Successfully created checksum file: $checksum_file"
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fi
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find . -type f ! -iname '*.txt' -exec sha512sum {} \; > "$sha512_checksum_file"
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sha512_checksum_status=$?
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if [ $sha512_checksum_status -ne 0 ]; then
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log_error "Failed to create sha512 checksum. sha512sum exit code: $sha512_checksum_status"
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else
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log_info "Successfully created checksum file: $sha512_checksum_file"
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fi
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log_info "--------------------------------------------------"
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log_info "Image download process finished."
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