feat: add installation and update script for VPS Monitor Agent
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jeanotx32
220
vps-monitor/agent/install.sh
Executable file
220
vps-monitor/agent/install.sh
Executable file
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#!/usr/bin/env bash
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# =============================================================================
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# VPS Monitor Agent — script d'installation / mise à jour
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# Télécharge les fichiers depuis le dépôt Gitea et configure un service systemd.
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#
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# Usage :
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# sudo bash install.sh [--port PORT] [--key API_KEY] [--branch BRANCH]
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# sudo bash install.sh --update [--branch BRANCH]
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# sudo bash install.sh --uninstall
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# =============================================================================
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set -euo pipefail
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# ─── Constantes ───────────────────────────────────────────────────────────────
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REPO_BASE="https://git.jeanbonapp.com/jeanbon/ScriptVPS/raw/branch"
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REPO_FILES=(
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"vps-monitor/agent/agent.py"
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"vps-monitor/agent/requirements.txt"
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)
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INSTALL_DIR="/opt/vps-monitor-agent"
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SERVICE_NAME="vps-monitor-agent"
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SERVICE_FILE="/etc/systemd/system/${SERVICE_NAME}.service"
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DEFAULT_PORT=8001
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DEFAULT_BRANCH="main"
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# ─── Couleurs ─────────────────────────────────────────────────────────────────
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RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'; CYAN='\033[0;36m'; NC='\033[0m'
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info() { echo -e "${CYAN}[INFO]${NC} $*"; }
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success() { echo -e "${GREEN}[OK]${NC} $*"; }
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warn() { echo -e "${YELLOW}[WARN]${NC} $*"; }
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error() { echo -e "${RED}[ERROR]${NC} $*" >&2; exit 1; }
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# ─── Arguments ────────────────────────────────────────────────────────────────
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AGENT_PORT=$DEFAULT_PORT
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AGENT_API_KEY=""
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REPO_BRANCH=$DEFAULT_BRANCH
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MODE="install" # install | update | uninstall
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while [[ $# -gt 0 ]]; do
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case $1 in
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--port) AGENT_PORT="$2"; shift 2 ;;
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--key) AGENT_API_KEY="$2"; shift 2 ;;
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--branch) REPO_BRANCH="$2"; shift 2 ;;
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--update) MODE="update"; shift ;;
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--uninstall) MODE="uninstall"; shift ;;
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*) error "Argument inconnu : $1. Voir INSTALL.md pour l'aide." ;;
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esac
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done
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# ─── Vérifications communes ───────────────────────────────────────────────────
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check_root() { [[ $EUID -ne 0 ]] && error "Ce script doit être exécuté en root (sudo)."; }
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check_deps() {
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command -v python3 &>/dev/null || error "Python 3 est requis : apt install python3 python3-venv"
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command -v docker &>/dev/null || error "Docker est requis. Consultez https://docs.docker.com/engine/install/"
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command -v curl &>/dev/null || error "curl est requis : apt install curl"
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}
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# ─── Téléchargement des fichiers depuis le dépôt ─────────────────────────────
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download_files() {
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info "Téléchargement des fichiers (branche : ${REPO_BRANCH})..."
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mkdir -p "$INSTALL_DIR"
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for file in "${REPO_FILES[@]}"; do
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filename=$(basename "$file")
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url="${REPO_BASE}/${REPO_BRANCH}/${file}"
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info " ↓ $filename"
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curl -fsSL "$url" -o "$INSTALL_DIR/$filename" \
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|| error "Impossible de télécharger : $url"
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done
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success "Fichiers téléchargés."
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}
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# ─── Désinstallation ──────────────────────────────────────────────────────────
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if [[ "$MODE" == "uninstall" ]]; then
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check_root
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info "Désinstallation de l'agent..."
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systemctl stop "$SERVICE_NAME" 2>/dev/null || true
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systemctl disable "$SERVICE_NAME" 2>/dev/null || true
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rm -f "$SERVICE_FILE"
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systemctl daemon-reload
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rm -rf "$INSTALL_DIR"
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success "Agent désinstallé."
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exit 0
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fi
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# ─── Mise à jour ──────────────────────────────────────────────────────────────
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if [[ "$MODE" == "update" ]]; then
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check_root
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[[ ! -d "$INSTALL_DIR" ]] && error "L'agent n'est pas installé. Lancez d'abord l'installation."
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info "Mise à jour de l'agent VPS Monitor..."
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# Conserver la clé API et le port existants
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if [[ -f "$INSTALL_DIR/.env" ]]; then
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AGENT_API_KEY=$(grep -E '^AGENT_API_KEY=' "$INSTALL_DIR/.env" | cut -d= -f2- || true)
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SAVED_PORT=$(grep -E '^AGENT_PORT=' "$INSTALL_DIR/.env" | cut -d= -f2- || true)
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[[ -n "$SAVED_PORT" ]] && AGENT_PORT="$SAVED_PORT"
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fi
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download_files
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info "Mise à jour des dépendances Python..."
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"$INSTALL_DIR/venv/bin/pip" install --quiet --upgrade pip
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"$INSTALL_DIR/venv/bin/pip" install --quiet -r "$INSTALL_DIR/requirements.txt"
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success "Dépendances à jour."
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info "Redémarrage du service..."
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systemctl restart "$SERVICE_NAME"
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sleep 2
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if systemctl is-active --quiet "$SERVICE_NAME"; then
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success "Service redémarré avec succès."
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CURRENT_VERSION=$(curl -sf --max-time 3 \
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"http://localhost:${AGENT_PORT}/health" 2>/dev/null | python3 -c \
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"import sys,json; d=json.load(sys.stdin); print(d.get('version','?'))" 2>/dev/null || echo "?")
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echo -e "\n${GREEN}Mise à jour terminée.${NC} Version active : ${CYAN}${CURRENT_VERSION}${NC}\n"
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else
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warn "Le service ne semble pas actif après la mise à jour."
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echo " journalctl -u ${SERVICE_NAME} -n 30 --no-pager"
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exit 1
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fi
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exit 0
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fi
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# ─── Installation ─────────────────────────────────────────────────────────────
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check_root
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check_deps
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info "Python : $(python3 --version)"
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info "Docker : $(docker --version)"
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# Clé API : fournie > existante > générée
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if [[ -z "$AGENT_API_KEY" ]]; then
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if [[ -f "$INSTALL_DIR/.env" ]]; then
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AGENT_API_KEY=$(grep -E '^AGENT_API_KEY=' "$INSTALL_DIR/.env" | cut -d= -f2- || true)
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[[ -n "$AGENT_API_KEY" ]] && info "Clé API existante conservée."
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fi
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if [[ -z "$AGENT_API_KEY" ]]; then
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AGENT_API_KEY=$(python3 -c "import secrets; print(secrets.token_hex(32))")
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warn "Aucune clé fournie — clé aléatoire générée."
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fi
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fi
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download_files
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# ─── Environnement virtuel ────────────────────────────────────────────────────
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if [[ ! -d "$INSTALL_DIR/venv" ]]; then
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info "Création de l'environnement virtuel Python..."
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python3 -m venv "$INSTALL_DIR/venv"
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fi
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info "Installation des dépendances Python..."
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"$INSTALL_DIR/venv/bin/pip" install --quiet --upgrade pip
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"$INSTALL_DIR/venv/bin/pip" install --quiet -r "$INSTALL_DIR/requirements.txt"
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success "Dépendances installées."
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# ─── Fichier .env ─────────────────────────────────────────────────────────────
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cat > "$INSTALL_DIR/.env" <<EOF
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AGENT_API_KEY=${AGENT_API_KEY}
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AGENT_PORT=${AGENT_PORT}
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EOF
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chmod 600 "$INSTALL_DIR/.env"
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success ".env configuré (chmod 600)."
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# ─── Service systemd ──────────────────────────────────────────────────────────
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info "Configuration du service systemd..."
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cat > "$SERVICE_FILE" <<EOF
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[Unit]
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Description=VPS Monitor Agent
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After=docker.service network-online.target
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Requires=docker.service
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[Service]
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Type=simple
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User=root
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WorkingDirectory=${INSTALL_DIR}
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EnvironmentFile=${INSTALL_DIR}/.env
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ExecStart=${INSTALL_DIR}/venv/bin/uvicorn agent:app --host 0.0.0.0 --port \${AGENT_PORT}
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Restart=always
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RestartSec=5
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StandardOutput=journal
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StandardError=journal
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[Install]
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WantedBy=multi-user.target
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EOF
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systemctl daemon-reload
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systemctl enable "$SERVICE_NAME"
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systemctl restart "$SERVICE_NAME"
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# ─── Vérification ─────────────────────────────────────────────────────────────
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sleep 2
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if systemctl is-active --quiet "$SERVICE_NAME"; then
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success "Service démarré et actif."
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else
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warn "Le service ne semble pas avoir démarré. Consultez les logs :"
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echo " journalctl -u ${SERVICE_NAME} -n 30 --no-pager"
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exit 1
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fi
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# ─── Résumé ───────────────────────────────────────────────────────────────────
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PUBLIC_IP=$(curl -sf --max-time 3 https://api.ipify.org 2>/dev/null \
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|| hostname -I | awk '{print $1}')
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echo ""
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echo -e "${GREEN}══════════════════════════════════════════════════${NC}"
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echo -e "${GREEN} Agent VPS Monitor installé avec succès !${NC}"
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echo -e "${GREEN}══════════════════════════════════════════════════${NC}"
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echo -e " Adresse : ${CYAN}http://${PUBLIC_IP}:${AGENT_PORT}${NC}"
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echo -e " Clé API : ${YELLOW}${AGENT_API_KEY}${NC}"
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echo -e " Branche : ${CYAN}${REPO_BRANCH}${NC}"
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echo ""
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echo -e " Commandes utiles :"
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echo -e " journalctl -u ${SERVICE_NAME} -f # logs en direct"
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echo -e " systemctl status ${SERVICE_NAME} # état du service"
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echo -e " sudo bash install.sh --update # mise à jour"
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echo -e " sudo bash install.sh --uninstall # désinstallation"
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echo -e "${GREEN}══════════════════════════════════════════════════${NC}"
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echo ""
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warn "Notez la clé API — elle est nécessaire pour configurer le backend central."
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