chiefgeek
a1a17e81a1
Includes updated JS challenge scripts with Claude-User whitelist, same-site referer bypass, Blackbox-Exporter allowed bot, and all new exporters, cheat sheets, and automation scripts.
565 lines
18 KiB
Bash
Executable File
565 lines
18 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Webtop / Selkies-GStreamer Prometheus Metrics Exporter
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#
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# Prometheus textfile collector exporter for Webtop (LinuxServer.io)
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# and Selkies-GStreamer remote desktop containers. Uses Docker inspect,
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# Docker stats, and container introspection to collect container state,
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# resource usage, session counts, and health metrics.
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#
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# Usage:
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# ./webtop-selkies-exporter.sh
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# ./webtop-selkies-exporter.sh --textfile
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# WEBTOP_HOST=10.0.0.5 WEBTOP_PORT=3000 ./webtop-selkies-exporter.sh --textfile
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# CONTAINER_PATTERN="selkies" ./webtop-selkies-exporter.sh --install
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#
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# Parameters:
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# --textfile Write to textfile collector directory
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# --install Create cron job for automatic collection
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# --help Show usage
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#
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# Environment:
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# WEBTOP_HOST Container host for HTTP checks (default: localhost)
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# WEBTOP_PORT Container web port for HTTP checks (default: 3000)
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# CONTAINER_PATTERN Docker container name pattern to match (default: webtop)
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# TEXTFILE_DIR Textfile collector directory (default: /var/lib/node_exporter/textfile_collector)
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# CURL_TIMEOUT HTTP request timeout in seconds (default: 5)
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#
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# Author: Phil Connor
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# Contact: contact@mylinux.work
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# Website: https://mylinux.work
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# License: MIT
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# Version: 1.0
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#
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# Metrics Exported:
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# Core:
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# - webtop_up
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# - webtop_exporter_info{version}
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# - webtop_container_state{name,image}
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#
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# Container Resources:
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# - webtop_cpu_usage_percent{name}
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# - webtop_memory_usage_bytes{name}
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# - webtop_memory_limit_bytes{name}
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# - webtop_network_rx_bytes{name}
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# - webtop_network_tx_bytes{name}
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#
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# Sessions:
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# - webtop_vnc_sessions_active{name}
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# - webtop_http_connections_active{name}
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#
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# Health:
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# - webtop_container_restarts{name}
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# - webtop_container_uptime_seconds{name}
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# - webtop_health_check_status{name}
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#
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# Exporter:
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# - webtop_exporter_duration_seconds
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# - webtop_exporter_last_run_timestamp
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set -euo pipefail
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# --- Configuration ---
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readonly VERSION="1.0"
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readonly SCRIPT_NAME="$(basename "$0")"
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WEBTOP_HOST="${WEBTOP_HOST:-localhost}"
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WEBTOP_PORT="${WEBTOP_PORT:-3000}"
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CONTAINER_PATTERN="${CONTAINER_PATTERN:-webtop}"
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TEXTFILE_DIR="${TEXTFILE_DIR:-/var/lib/node_exporter/textfile_collector}"
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CURL_TIMEOUT="${CURL_TIMEOUT:-5}"
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TEXTFILE_MODE=false
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OUTPUT=""
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START_TIME=""
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# --- Functions ---
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usage() {
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cat <<EOF
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Usage: $SCRIPT_NAME [OPTIONS]
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Webtop / Selkies-GStreamer Prometheus Metrics Exporter
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Options:
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--textfile Write metrics to textfile collector directory
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--install Create cron job for automatic collection
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--help Show this help message
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Environment Variables:
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WEBTOP_HOST Container host for HTTP checks (default: localhost)
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WEBTOP_PORT Container web port for HTTP checks (default: 3000)
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CONTAINER_PATTERN Docker container name pattern to match (default: webtop)
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TEXTFILE_DIR Output directory (default: /var/lib/node_exporter/textfile_collector)
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CURL_TIMEOUT Request timeout in seconds (default: 5)
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Examples:
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$SCRIPT_NAME
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$SCRIPT_NAME --textfile
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WEBTOP_HOST=10.0.0.5 WEBTOP_PORT=3000 $SCRIPT_NAME --textfile
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CONTAINER_PATTERN="selkies" $SCRIPT_NAME --install
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EOF
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exit 0
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}
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check_dependencies() {
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local missing=()
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for cmd in docker jq; do
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if ! command -v "$cmd" &>/dev/null; then
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missing+=("$cmd")
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fi
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done
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if [[ ${#missing[@]} -gt 0 ]]; then
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echo "ERROR: Missing required commands: ${missing[*]}" >&2
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echo "Install with: apt install ${missing[*]} OR dnf install ${missing[*]}" >&2
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exit 1
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fi
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}
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validate_config() {
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if ! docker info &>/dev/null; then
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echo "ERROR: Cannot connect to Docker daemon. Is Docker running? Do you have permission?" >&2
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exit 1
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fi
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}
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api_get() {
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local url="$1"
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curl -sf --max-time "$CURL_TIMEOUT" "$url" 2>/dev/null || echo ""
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}
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add_metric() {
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local name="$1"
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local type="$2"
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local help="$3"
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local value="$4"
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local labels="${5:-}"
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if [[ -n "$labels" ]]; then
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OUTPUT+="# HELP ${name} ${help}
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# TYPE ${name} ${type}
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${name}{${labels}} ${value}
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"
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else
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OUTPUT+="# HELP ${name} ${help}
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# TYPE ${name} ${type}
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${name} ${value}
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"
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fi
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}
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add_metric_value() {
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local name="$1"
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local value="$2"
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local labels="${3:-}"
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if [[ -n "$labels" ]]; then
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OUTPUT+="${name}{${labels}} ${value}
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"
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else
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OUTPUT+="${name} ${value}
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"
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fi
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}
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# Discover containers matching the pattern.
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# Returns newline-separated container IDs.
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discover_containers() {
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docker ps -a --filter "name=${CONTAINER_PATTERN}" --format '{{.ID}}' 2>/dev/null
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}
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# Collect container state and basic info.
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# Sets webtop_up to 1 if at least one matching container is running.
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collect_container_state() {
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local container_ids="$1"
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local any_running=0
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OUTPUT+="# HELP webtop_container_state Container running state (1=running, 0=stopped)
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# TYPE webtop_container_state gauge
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"
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while IFS= read -r cid; do
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[[ -z "$cid" ]] && continue
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local inspect_json
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inspect_json=$(docker inspect "$cid" 2>/dev/null) || continue
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local name image state
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name=$(echo "$inspect_json" | jq -r '.[0].Name // ""' | sed 's|^/||')
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image=$(echo "$inspect_json" | jq -r '.[0].Config.Image // ""')
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state=$(echo "$inspect_json" | jq -r '.[0].State.Status // ""')
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local state_val=0
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if [[ "$state" == "running" ]]; then
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state_val=1
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any_running=1
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fi
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add_metric_value "webtop_container_state" "$state_val" "name=\"${name}\",image=\"${image}\""
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done <<< "$container_ids"
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add_metric "webtop_up" "gauge" "Whether any matching container is running (1=up, 0=down)" "$any_running"
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}
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# Collect CPU and memory from docker stats.
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collect_resource_metrics() {
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local container_ids="$1"
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local stats_json
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stats_json=$(docker stats --no-stream --format '{"name":"{{.Name}}","cpu":"{{.CPUPerc}}","mem_usage":"{{.MemUsage}}","net_io":"{{.NetIO}}"}' $(echo "$container_ids" | tr '\n' ' ') 2>/dev/null) || return
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[[ -z "$stats_json" ]] && return
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OUTPUT+="# HELP webtop_cpu_usage_percent Container CPU usage percentage
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# TYPE webtop_cpu_usage_percent gauge
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"
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while IFS= read -r line; do
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[[ -z "$line" ]] && continue
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local name cpu_str
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name=$(echo "$line" | jq -r '.name // ""')
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cpu_str=$(echo "$line" | jq -r '.cpu // "0"')
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local cpu_val
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cpu_val=$(echo "$cpu_str" | grep -oP '[\d.]+' | head -1 || echo "0")
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add_metric_value "webtop_cpu_usage_percent" "$cpu_val" "name=\"${name}\""
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done <<< "$stats_json"
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OUTPUT+="# HELP webtop_memory_usage_bytes Container memory usage in bytes
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# TYPE webtop_memory_usage_bytes gauge
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"
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while IFS= read -r line; do
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[[ -z "$line" ]] && continue
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local name mem_str
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name=$(echo "$line" | jq -r '.name // ""')
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mem_str=$(echo "$line" | jq -r '.mem_usage // ""')
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# Format: "123.4MiB / 1.5GiB"
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local usage_part
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usage_part=$(echo "$mem_str" | awk -F' / ' '{print $1}')
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local usage_bytes
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usage_bytes=$(parse_docker_size "$usage_part")
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add_metric_value "webtop_memory_usage_bytes" "$usage_bytes" "name=\"${name}\""
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done <<< "$stats_json"
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OUTPUT+="# HELP webtop_memory_limit_bytes Container memory limit in bytes
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# TYPE webtop_memory_limit_bytes gauge
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"
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while IFS= read -r line; do
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[[ -z "$line" ]] && continue
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local name mem_str
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name=$(echo "$line" | jq -r '.name // ""')
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mem_str=$(echo "$line" | jq -r '.mem_usage // ""')
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local limit_part
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limit_part=$(echo "$mem_str" | awk -F' / ' '{print $2}')
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local limit_bytes
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limit_bytes=$(parse_docker_size "$limit_part")
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add_metric_value "webtop_memory_limit_bytes" "$limit_bytes" "name=\"${name}\""
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done <<< "$stats_json"
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OUTPUT+="# HELP webtop_network_rx_bytes Network bytes received
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# TYPE webtop_network_rx_bytes counter
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"
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while IFS= read -r line; do
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[[ -z "$line" ]] && continue
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local name net_str
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name=$(echo "$line" | jq -r '.name // ""')
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net_str=$(echo "$line" | jq -r '.net_io // ""')
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# Format: "1.23kB / 4.56MB"
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local rx_part
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rx_part=$(echo "$net_str" | awk -F' / ' '{print $1}')
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local rx_bytes
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rx_bytes=$(parse_docker_size "$rx_part")
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add_metric_value "webtop_network_rx_bytes" "$rx_bytes" "name=\"${name}\""
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done <<< "$stats_json"
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OUTPUT+="# HELP webtop_network_tx_bytes Network bytes transmitted
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# TYPE webtop_network_tx_bytes counter
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"
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while IFS= read -r line; do
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[[ -z "$line" ]] && continue
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local name net_str
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name=$(echo "$line" | jq -r '.name // ""')
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net_str=$(echo "$line" | jq -r '.net_io // ""')
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local tx_part
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tx_part=$(echo "$net_str" | awk -F' / ' '{print $2}')
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local tx_bytes
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tx_bytes=$(parse_docker_size "$tx_part")
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add_metric_value "webtop_network_tx_bytes" "$tx_bytes" "name=\"${name}\""
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done <<< "$stats_json"
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}
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# Parse Docker size strings like "1.23GiB", "456MiB", "789kB" to bytes.
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parse_docker_size() {
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local size_str="$1"
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if [[ -z "$size_str" ]]; then
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echo "0"
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return
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fi
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local number unit
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number=$(echo "$size_str" | grep -oP '[\d.]+' | head -1)
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unit=$(echo "$size_str" | grep -oP '[A-Za-z]+' | head -1)
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if [[ -z "$number" ]]; then
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echo "0"
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return
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fi
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case "$unit" in
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B)
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echo "$number" | awk '{printf "%.0f", $1}' ;;
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kB|KB)
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echo "$number" | awk '{printf "%.0f", $1 * 1000}' ;;
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KiB)
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echo "$number" | awk '{printf "%.0f", $1 * 1024}' ;;
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MB)
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echo "$number" | awk '{printf "%.0f", $1 * 1000000}' ;;
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MiB)
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echo "$number" | awk '{printf "%.0f", $1 * 1048576}' ;;
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GB)
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echo "$number" | awk '{printf "%.0f", $1 * 1000000000}' ;;
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GiB)
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echo "$number" | awk '{printf "%.0f", $1 * 1073741824}' ;;
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TB)
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echo "$number" | awk '{printf "%.0f", $1 * 1000000000000}' ;;
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TiB)
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echo "$number" | awk '{printf "%.0f", $1 * 1099511627776}' ;;
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*)
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echo "$number" | awk '{printf "%.0f", $1}' ;;
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esac
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}
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# Collect VNC session count and HTTP connection count.
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collect_session_metrics() {
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local container_ids="$1"
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OUTPUT+="# HELP webtop_vnc_sessions_active Active VNC/KasmVNC sessions
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# TYPE webtop_vnc_sessions_active gauge
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"
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while IFS= read -r cid; do
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[[ -z "$cid" ]] && continue
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local name
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name=$(docker inspect --format '{{.Name}}' "$cid" 2>/dev/null | sed 's|^/||')
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[[ -z "$name" ]] && continue
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local state
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state=$(docker inspect --format '{{.State.Status}}' "$cid" 2>/dev/null)
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[[ "$state" != "running" ]] && continue
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local vnc_sessions=0
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# Method 1: Try KasmVNC API
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local kasmvnc_response
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kasmvnc_response=$(api_get "http://${WEBTOP_HOST}:${WEBTOP_PORT}/api/get_session")
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if [[ -n "$kasmvnc_response" ]]; then
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local session_count
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session_count=$(echo "$kasmvnc_response" | jq 'if type == "array" then length elif type == "object" then 1 else 0 end' 2>/dev/null || echo "0")
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vnc_sessions="$session_count"
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else
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# Method 2: Parse container logs for VNC connection events
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local recent_connects recent_disconnects
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recent_connects=$(docker logs --since 24h "$cid" 2>&1 | grep -ciE '(connection from|client connected|new client|websocket.*opened)' || true)
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recent_disconnects=$(docker logs --since 24h "$cid" 2>&1 | grep -ciE '(client disconnected|client gone|websocket.*closed|connection closed)' || true)
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vnc_sessions=$(( recent_connects - recent_disconnects ))
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if [[ "$vnc_sessions" -lt 0 ]]; then
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vnc_sessions=0
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fi
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fi
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add_metric_value "webtop_vnc_sessions_active" "$vnc_sessions" "name=\"${name}\""
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done <<< "$container_ids"
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OUTPUT+="# HELP webtop_http_connections_active Active HTTP connections to container port
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# TYPE webtop_http_connections_active gauge
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"
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while IFS= read -r cid; do
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[[ -z "$cid" ]] && continue
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local name
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name=$(docker inspect --format '{{.Name}}' "$cid" 2>/dev/null | sed 's|^/||')
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[[ -z "$name" ]] && continue
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local state
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state=$(docker inspect --format '{{.State.Status}}' "$cid" 2>/dev/null)
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[[ "$state" != "running" ]] && continue
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local http_conns=0
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# Get the host port mapped to the container port
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local host_port
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host_port=$(docker inspect --format "{{(index (index .NetworkSettings.Ports \"${WEBTOP_PORT}/tcp\") 0).HostPort}}" "$cid" 2>/dev/null || echo "$WEBTOP_PORT")
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if command -v ss &>/dev/null; then
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http_conns=$(ss -tn state established "( dport = :${host_port} or sport = :${host_port} )" 2>/dev/null | tail -n +2 | wc -l || echo "0")
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elif command -v netstat &>/dev/null; then
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http_conns=$(netstat -tn 2>/dev/null | grep -c ":${host_port}.*ESTABLISHED" || echo "0")
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fi
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add_metric_value "webtop_http_connections_active" "$http_conns" "name=\"${name}\""
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done <<< "$container_ids"
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}
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# Collect restart count, uptime, and health check status.
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collect_health_metrics() {
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local container_ids="$1"
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OUTPUT+="# HELP webtop_container_restarts Container restart count
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# TYPE webtop_container_restarts counter
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"
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while IFS= read -r cid; do
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[[ -z "$cid" ]] && continue
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local inspect_json
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inspect_json=$(docker inspect "$cid" 2>/dev/null) || continue
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local name restart_count
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name=$(echo "$inspect_json" | jq -r '.[0].Name // ""' | sed 's|^/||')
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restart_count=$(echo "$inspect_json" | jq -r '.[0].RestartCount // 0')
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add_metric_value "webtop_container_restarts" "$restart_count" "name=\"${name}\""
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done <<< "$container_ids"
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OUTPUT+="# HELP webtop_container_uptime_seconds Seconds since container started
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# TYPE webtop_container_uptime_seconds gauge
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"
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while IFS= read -r cid; do
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[[ -z "$cid" ]] && continue
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local inspect_json
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inspect_json=$(docker inspect "$cid" 2>/dev/null) || continue
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local name started_at state
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name=$(echo "$inspect_json" | jq -r '.[0].Name // ""' | sed 's|^/||')
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state=$(echo "$inspect_json" | jq -r '.[0].State.Status // ""')
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started_at=$(echo "$inspect_json" | jq -r '.[0].State.StartedAt // ""')
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local uptime=0
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if [[ "$state" == "running" && -n "$started_at" && "$started_at" != "0001-01-01T00:00:00Z" ]]; then
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local started_epoch now_epoch
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started_epoch=$(date -d "$started_at" +%s 2>/dev/null || echo "0")
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now_epoch=$(date +%s)
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if [[ "$started_epoch" -gt 0 ]]; then
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uptime=$(( now_epoch - started_epoch ))
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fi
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fi
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add_metric_value "webtop_container_uptime_seconds" "$uptime" "name=\"${name}\""
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done <<< "$container_ids"
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OUTPUT+="# HELP webtop_health_check_status Docker health check status (1=healthy, 0=unhealthy)
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# TYPE webtop_health_check_status gauge
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"
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while IFS= read -r cid; do
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[[ -z "$cid" ]] && continue
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local inspect_json
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inspect_json=$(docker inspect "$cid" 2>/dev/null) || continue
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local name health_status
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name=$(echo "$inspect_json" | jq -r '.[0].Name // ""' | sed 's|^/||')
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health_status=$(echo "$inspect_json" | jq -r '.[0].State.Health.Status // "none"')
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local health_val=0
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if [[ "$health_status" == "healthy" ]]; then
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health_val=1
|
|
fi
|
|
|
|
add_metric_value "webtop_health_check_status" "$health_val" "name=\"${name}\""
|
|
done <<< "$container_ids"
|
|
}
|
|
|
|
write_output() {
|
|
if [[ "$TEXTFILE_MODE" == true ]]; then
|
|
local output_file="${TEXTFILE_DIR}/webtop.prom"
|
|
local temp_file="${output_file}.$$"
|
|
|
|
mkdir -p "$TEXTFILE_DIR"
|
|
echo "$OUTPUT" > "$temp_file"
|
|
mv "$temp_file" "$output_file"
|
|
else
|
|
echo "$OUTPUT"
|
|
fi
|
|
}
|
|
|
|
install_cron() {
|
|
if [[ $EUID -ne 0 ]]; then
|
|
echo "ERROR: --install requires root" >&2
|
|
exit 1
|
|
fi
|
|
|
|
local script_path
|
|
script_path=$(readlink -f "$0")
|
|
|
|
cat > /etc/cron.d/webtop-selkies-exporter <<EOF
|
|
# Webtop/Selkies Prometheus Exporter — runs every 2 minutes
|
|
WEBTOP_HOST=${WEBTOP_HOST}
|
|
WEBTOP_PORT=${WEBTOP_PORT}
|
|
CONTAINER_PATTERN=${CONTAINER_PATTERN}
|
|
TEXTFILE_DIR=${TEXTFILE_DIR}
|
|
*/2 * * * * root ${script_path} --textfile 2>/dev/null
|
|
EOF
|
|
|
|
chmod 644 /etc/cron.d/webtop-selkies-exporter
|
|
echo "Installed cron job: /etc/cron.d/webtop-selkies-exporter"
|
|
echo "Metrics will be written to: ${TEXTFILE_DIR}/webtop.prom"
|
|
}
|
|
|
|
# --- Main ---
|
|
|
|
main() {
|
|
# Parse arguments
|
|
for arg in "$@"; do
|
|
case "$arg" in
|
|
--textfile) TEXTFILE_MODE=true ;;
|
|
--install)
|
|
check_dependencies
|
|
validate_config
|
|
install_cron
|
|
exit 0
|
|
;;
|
|
--help|-h) usage ;;
|
|
*) echo "Unknown option: $arg" >&2; usage ;;
|
|
esac
|
|
done
|
|
|
|
check_dependencies
|
|
validate_config
|
|
|
|
START_TIME=$(date +%s%N)
|
|
|
|
# Exporter info
|
|
add_metric "webtop_exporter_info" "gauge" "Exporter version information" "1" "version=\"${VERSION}\""
|
|
|
|
# Discover matching containers
|
|
local container_ids
|
|
container_ids=$(discover_containers)
|
|
|
|
if [[ -z "$container_ids" ]]; then
|
|
add_metric "webtop_up" "gauge" "Whether any matching container is running (1=up, 0=down)" "0"
|
|
else
|
|
collect_container_state "$container_ids"
|
|
|
|
# Only collect detailed metrics for running containers
|
|
local running_ids
|
|
running_ids=$(docker ps --filter "name=${CONTAINER_PATTERN}" --filter "status=running" --format '{{.ID}}' 2>/dev/null)
|
|
|
|
if [[ -n "$running_ids" ]]; then
|
|
collect_resource_metrics "$running_ids"
|
|
collect_session_metrics "$running_ids"
|
|
fi
|
|
|
|
collect_health_metrics "$container_ids"
|
|
fi
|
|
|
|
# Exporter performance
|
|
local end_time duration
|
|
end_time=$(date +%s%N)
|
|
duration=$(echo "scale=2; ($end_time - $START_TIME) / 1000000000" | bc 2>/dev/null || echo "0")
|
|
add_metric "webtop_exporter_duration_seconds" "gauge" "Time to generate all metrics" "$duration"
|
|
add_metric "webtop_exporter_last_run_timestamp" "gauge" "Unix timestamp of last successful run" "$(date +%s)"
|
|
|
|
write_output
|
|
}
|
|
|
|
main "$@"
|