feat(package): sentinèlla: sentinel: loging
This commit is contained in:
54
package/sentinèlla/colors.sh
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54
package/sentinèlla/colors.sh
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@@ -0,0 +1,54 @@
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NC='\033[0m'
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# Regular text colors
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BLACK='\033[30m'
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RED='\033[31m'
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GREEN='\033[32m'
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YELLOW='\033[33m'
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BLUE='\033[34m'
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MAGENTA='\033[35m'
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CYAN='\033[36m'
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WHITE='\033[37m'
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# Bright text colors
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BBLACK='\033[90m'
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BRED='\033[91m'
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BGREEN='\033[92m'
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BYELLOW='\033[93m'
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BBLUE='\033[94m'
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BMAGENTA='\033[95m'
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BCYAN='\033[96m'
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BWHITE='\033[97m'
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# Background colors
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BG_BLACK='\033[40m'
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BG_RED='\033[41m'
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BG_GREEN='\033[42m'
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BG_YELLOW='\033[43m'
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BG_BLUE='\033[44m'
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BG_MAGENTA='\033[45m'
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BG_CYAN='\033[46m'
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BG_WHITE='\033[47m'
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# Bright background colors
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BG_BBLACK='\033[100m'
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BG_BRED='\033[101m'
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BG_BGREEN='\033[102m'
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BG_BYELLOW='\033[103m'
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BG_BBLUE='\033[104m'
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BG_BMAGENTA='\033[105m'
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BG_BCYAN='\033[106m'
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BG_BWHITE='\033[107m'
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# Text effects
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RESET='\033[0m'
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BOLD='\033[1m'
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DIM='\033[2m'
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ITALIC='\033[3m'
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UNDERLINE='\033[4m'
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BLINK='\033[5m'
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INVERSE='\033[7m'
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HIDDEN='\033[8m'
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STRIKE='\033[9m'
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: "$NC" "$BLACK" "$RED" "$GREEN" "$YELLOW" "$BLUE" "$MAGENTA" "$CYAN" "$WHITE" "$BBLACK" "$BRED" "$BGREEN" "$BYELLOW" "$BBLUE" "$BMAGENTA" "$BCYAN" "$BWHITE" "$BG_BLACK" "$BG_RED" "$BG_GREEN" "$BG_YELLOW" "$BG_BLUE" "$BG_MAGENTA" "$BG_CYAN" "$BG_WHITE" "$BG_BBLACK" "$BG_BRED" "$BG_BGREEN" "$BG_BYELLOW" "$BG_BBLUE" "$BG_BMAGENTA" "$BG_BCYAN" "$BG_BWHITE" "$RESET" "$BOLD" "$DIM" "$ITALIC" "$UNDERLINE" "$BLINK" "$INVERSE" "$HIDDEN" "$STRIKE"
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@@ -1,4 +1,4 @@
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{ symlinkJoin, writeShellApplication, socat, dash, hectic, curl, gawk }:
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{ symlinkJoin, writeTextFile, socat, dash, hectic, curl, gawk }:
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let
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shell = "${dash}/bin/dash";
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bashOptions = [
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@@ -31,7 +31,12 @@ let
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inherit shell bashOptions;
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name = "sentinel";
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runtimeInputs = [ hectic.shellplot curl ];
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text = builtins.readFile ./sentinel.sh;
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text = ''
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${builtins.readFile ./log.sh}
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${builtins.readFile ./colors.sh}
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${builtins.readFile ./sentinel.sh}
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'';
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};
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in
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symlinkJoin {
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21
package/sentinèlla/log.sh
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21
package/sentinèlla/log.sh
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@@ -0,0 +1,21 @@
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#!/bin/dash
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log() {
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level="$1"; shift
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case "$level" in
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trace) color="$MAGENTA" ;;
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debug) color="$BLUE" ;;
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info) color="$GREEN" ;;
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notice) color="$CYAN" ;;
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warn) color="$YELLOW" ;;
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error) color="$RED" ;;
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*) color="$WHITE" ;;
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esac
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# shellcheck disable=SC1003
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fmt="$(printf "%s" "$1" | sed 's/\\033\[0m/''\'"$color"'/g')"
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shift
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printf "%b\n" "$color$fmt$NC" "$@"
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}
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@@ -3,23 +3,35 @@
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# Env:
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# SERVERS="http://host1:8080,http://host2:8080"
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# TOKENS="-,b64token2" # CSV aligned with SERVERS; "-" means no auth
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# TOKEN="..." # Telegram bot token
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# CHAT_ID="..." # Telegram chat id
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# TG_TOKEN="..." # Telegram bot token
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# TG_CHAT_ID="..." # Telegram chat id
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# TIMEOUT=5 # curl timeout seconds (default 5)
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# POLLING_INTERVAL_SEC=3 # default 3
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# STATE_DIR=/tmp/sentinel # default /tmp/sentinel
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# STATE_DIR=/var/lib/sentinel # default /var/lib/sentinel
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# SPAM=0 # if 1 will notify every poling, default 0
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set -eu
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TIMEOUT=${TIMEOUT:-5}
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POLLING_INTERVAL_SEC=${POLLING_INTERVAL_SEC:-3}
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STATE_DIR=${STATE_DIR:-$(mktemp -d)}
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SERVERS=${SERVERS:-}
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TOKENS=${TOKENS:-}
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TOKEN=${TOKEN:-}
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CHAT_ID=${CHAT_ID:-}
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SPAM=${SPAM:-0}
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STATE_DIR=${STATE_DIR:-/var/lib/sentinel}
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mkdir -p "$STATE_DIR" 2>/dev/null || {
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# TODO: some sort of message?
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STATE_DIR="$HOME/.local/$(basename "$STATE_DIR")"
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mkdir -p "$STATE_DIR"
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}
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mkdir -p "$STATE_DIR" 2>/dev/null || mkdir -p "$HOME/.local/$(basename "$STATE_DIR")"
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[ -n "$SERVERS" ] || { printf >&2 'SERVERS not set\n'; exit 1; }
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[ -n "$TOKEN" ] || { printf >&2 'TOKEN not set\n'; exit 1; }
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[ -n "$CHAT_ID" ] || { printf >&2 'CHAT_ID not set\n'; exit 1; }
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# If TOKENS unset, synthesize "-" for each server
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if [ -z "$TOKENS" ]; then
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@@ -27,13 +39,11 @@ if [ -z "$TOKENS" ]; then
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TOKENS=$(awk -v n="$n" 'BEGIN{for(i=1;i<=n;i++){printf("-"); if(i<n)printf(",")}}')
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fi
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mkdir -p "$STATE_DIR"
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# --- helpers ---
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# get_csv VAR idx -> echo idx-th field (1-based) from CSV string VAR
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# get_csv(csv_variable, index)
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# echo idx-th field (1-based) from CSV string VAR
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get_csv() {
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# shellcheck disable=SC2001
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printf '%s' "$1" | sed 's/,/\n/g' | awk -v n="$2" 'NR==n{print; exit}'
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}
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@@ -48,6 +58,7 @@ notify() {
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fi
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}
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# sid(text)
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sid() { printf '%s' "$1" | cksum | awk '{print $1}'; }
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parse_summary() {
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@@ -65,6 +76,7 @@ list_failures() {
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# --- main loop ---
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while :; do
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log info "pooling ${WHITE}${POLLING_INTERVAL_SEC}${NC} sec"
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i=1
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while :; do
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srv=$(get_csv "$SERVERS" "$i") || true
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@@ -79,6 +91,8 @@ while :; do
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code=$(sh -c "curl -sS -m \"$TIMEOUT\" -w '%{http_code}' -o \"$tmpb\" $auth_h \"$url\"") || code="000"
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body=$(cat "$tmpb"); rm -f "$tmpb"
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log info "server ${WHITE}${srv}${NC}\ncode ${WHITE}${code}${NC}\nbody ${WHITE}${body}${NC}"
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ok="down"; tot=0; good=0
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if [ "$code" = "200" ]; then
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s=$(printf '%s' "$body" | parse_summary || true)
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