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To solve this, I put together a robust, production-ready Bash script that automates checking, downloading, backing up, and updating the Netdata web dashboard directly from Netdata Cloud's official tarball release. The Script Here is the complete script. #!/usr/bin/env bash set -e # Configuration WEB_DIR="/usr/local/share/netdata/web" [ ! -d "$WEB_DIR" ] && [ -d "/usr/share/netdata/web" ] && WEB_DIR="/usr/share/netdata/web" DASHBOARD_URL="https://app.netdata.cloud/agent.tar.gz" TMP_DIR="/tmp/netdata_dashboard_update" # 1. Check root privileges if [ "${EUID:-$(id -u)}" -ne 0 ]; then echo "Error: This script must be run as root (sudo)." exit 1 fi # 2. Check required tools for cmd in curl tar sed sort tail find; do if ! command -v $cmd &> /dev/null; then echo "Error: Tool '$cmd' is not installed." exit 1 fi done # 3. Get installed dashboard version get_installed_version() { ls "${WEB_DIR}/v3"/allFiles.*.json 2>/dev/null | \ sed 's|.*/allFiles\.\(.*\)\.json|\1|' | \ sort -V | tail -n 1 } # 4. Get remote dashboard version directly from the archive get_remote_version() { curl -sL "${DASHBOARD_URL}" | \ tar -tzf - 2>/dev/null | \ grep 'allFiles\..*\.json' | \ sed -n 's/.*allFiles\.\(.*\)\.json/\1/p' | \ sort -V | tail -n 1 } CURRENT_VERSION=$(get_installed_version) [ -z "$CURRENT_VERSION" ] && CURRENT_VERSION="none" echo "--- Checking dashboard version ---" echo "Current installed version: $CURRENT_VERSION" echo "Fetching remote version from Netdata Cloud..." REMOTE_VERSION=$(get_remote_version) if [ -z "$REMOTE_VERSION" ]; then echo "Error: Could not retrieve remote dashboard version from $DASHBOARD_URL." exit 1 fi echo "Latest remote version: $REMOTE_VERSION" # 5. Version comparison if [ "$CURRENT_VERSION" == "$REMOTE_VERSION" ]; then echo "--> Dashboard is already up to date ($CURRENT_VERSION). No action needed." exit 0 fi echo "--> New version detected ($REMOTE_VERSION)! Updating..." # 6. Download and extract rm -rf "$TMP_DIR" mkdir -p "$TMP_DIR/extracted" echo "Downloading $DASHBOARD_URL..." curl -sL "$DASHBOARD_URL" -o "$TMP_DIR/agent.tar.gz" echo "Extracting archive..." tar -xzf "$TMP_DIR/agent.tar.gz" -C "$TMP_DIR/extracted" # Locate the actual root folder containing the 'v3' directory SRC_DIR="$TMP_DIR/extracted" if [ ! -d "$SRC_DIR/v3" ]; then V3_PATH=$(find "$TMP_DIR/extracted" -mindepth 1 -maxdepth 3 -type d -name "v3" -print -quit) if [ -n "$V3_PATH" ]; then SRC_DIR=$(dirname "$V3_PATH") fi fi if [ ! -d "$SRC_DIR/v3" ]; then echo "Error: Could not locate 'v3' directory in extracted archive." rm -rf "$TMP_DIR" exit 1 fi # 7. Create backup BACKUP_DIR="${WEB_DIR}_backup_$(date +%Y%m%d_%H%M%S)" echo "Creating backup in: $BACKUP_DIR" cp -r "$WEB_DIR" "$BACKUP_DIR" # 8. Replace web files echo "Updating web files in $WEB_DIR..." rm -rf "${WEB_DIR:?}"/* cp -r "$SRC_DIR"/* "$WEB_DIR/" # 9. Set permissions if id "netdata" &>/dev/null; then chown -R netdata:netdata "$WEB_DIR" fi # Cleanup rm -rf "$TMP_DIR" echo "=== Successfully updated dashboard to $REMOTE_VERSION ===" echo "Refresh your browser (Ctrl + F5) to use the new dashboard." How It Works Under the Hood The script is engineered with several safeguards to ensure zero downtime issues or broken states: 1. Dynamic Path Resolution: It automatically checks standard web directory paths (`/usr/local/share/netdata/web` vs `/usr/share/netdata/web`) to fit different Linux distributions and installation methods. 2. Prerequisite Validation: It checks for essential command-line tools (`curl`, `tar`, `sed`, `sort`, `tail`, `find`) before doing anything else. 3. Smart Version Parsing: Instead of relying on a manifest API, it inspects file names (`allFiles.*.json`) in both the local directory and the remote `.tar.gz` archive, sorting them properly using `sort -V` (version sorting). If the versions match, it gracefully exits without touching the file system. 4. Automatic Safety Backups: Before making any destructive changes, the script creates a timestamped backup of your current dashboard files (e.g., `/usr/local/share/netdata/web_backup_20261028_214500`). 5. Permissions & Ownership: It automatically detects if the `netdata` system user exists and ensures proper ownership recursively (`chown -R netdata:netdata`). How to Use It Save the script to your server: sudo nano /usr/local/bin/update_netdata_dashboard.sh _(Paste the code above and save the file)_ Make it executable: sudo chmod +x /usr/local/bin/update_netdata_dashboard.sh Run the script: sudo update_netdata_dashboard.sh You can also automate this via Cron if you want your dashboard checked and updated weekly or monthly. Just remember to clear your browser cache (`Ctrl + F5`) after an update to load the latest UI assets cleanly!

A child that disconnected from its Parent could stay live in Netdata Cloud because the node state update was scheduled before the child was marked offline; A Parent waits 125% of a disconnected child's expected reboot time, capped at 30 seconds, before reporting it offline to Netdata Cloud, instead…

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