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Co-authored-by: Cursor <cursoragent@cursor.com>
147 lines
3.9 KiB
Bash
Executable File
147 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
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source ~/.bashrc
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# Observability Stack Setup Script (Prometheus + Grafana)
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# Run this on the Observability VM after OS installation
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set -e
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# Colors
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m'
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log_info() {
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echo -e "${GREEN}[INFO]${NC} $1"
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}
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log_warn() {
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echo -e "${YELLOW}[WARN]${NC} $1"
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}
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log_error() {
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echo -e "${RED}[ERROR]${NC} $1"
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}
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log_step() {
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echo -e "${BLUE}[STEP]${NC} $1"
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}
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# Check if running as root
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if [ "$EUID" -ne 0 ]; then
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log_error "Please run as root (use sudo)"
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exit 1
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fi
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PROMETHEUS_VERSION="${PROMETHEUS_VERSION:-2.45.0}"
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GRAFANA_VERSION="${GRAFANA_VERSION:-10.0.0}"
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PROMETHEUS_USER="${PROMETHEUS_USER:-prometheus}"
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GRAFANA_USER="${GRAFANA_USER:-grafana}"
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log_step "Step 1: Installing dependencies..."
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apt-get update
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apt-get install -y wget curl
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log_step "Step 2: Installing Prometheus..."
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# Create Prometheus user
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useradd -r -s /bin/false "$PROMETHEUS_USER" || log_warn "User $PROMETHEUS_USER may already exist"
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# Download and install Prometheus
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cd /tmp
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wget "https://github.com/prometheus/prometheus/releases/download/v${PROMETHEUS_VERSION}/prometheus-${PROMETHEUS_VERSION}.linux-amd64.tar.gz"
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tar xzf "prometheus-${PROMETHEUS_VERSION}.linux-amd64.tar.gz"
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mv "prometheus-${PROMETHEUS_VERSION}.linux-amd64" /opt/prometheus
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mkdir -p /etc/prometheus
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mkdir -p /var/lib/prometheus
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chown -R "$PROMETHEUS_USER:$PROMETHEUS_USER" /opt/prometheus /etc/prometheus /var/lib/prometheus
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# Create Prometheus configuration
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cat > /etc/prometheus/prometheus.yml <<EOF
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global:
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scrape_interval: 15s
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evaluation_interval: 15s
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scrape_configs:
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- job_name: 'prometheus'
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static_configs:
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- targets: ['localhost:9090']
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- job_name: 'node-exporter'
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static_configs:
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- targets: ['localhost:9100']
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EOF
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# Create systemd service
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cat > /etc/systemd/system/prometheus.service <<EOF
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[Unit]
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Description=Prometheus
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After=network.target
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[Service]
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Type=simple
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User=$PROMETHEUS_USER
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ExecStart=/opt/prometheus/prometheus --config.file=/etc/prometheus/prometheus.yml --storage.tsdb.path=/var/lib/prometheus
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Restart=always
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RestartSec=5s
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[Install]
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WantedBy=multi-user.target
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EOF
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log_step "Step 3: Installing Node Exporter..."
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cd /tmp
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wget "https://github.com/prometheus/node_exporter/releases/download/v1.6.1/node_exporter-1.6.1.linux-amd64.tar.gz"
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tar xzf node_exporter-1.6.1.linux-amd64.tar.gz
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mv node_exporter-1.6.1.linux-amd64/node_exporter /usr/local/bin/
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chmod +x /usr/local/bin/node_exporter
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cat > /etc/systemd/system/node-exporter.service <<EOF
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[Unit]
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Description=Node Exporter
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After=network.target
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[Service]
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Type=simple
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ExecStart=/usr/local/bin/node_exporter
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Restart=always
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RestartSec=5s
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[Install]
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WantedBy=multi-user.target
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EOF
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log_step "Step 4: Installing Grafana..."
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apt-get install -y apt-transport-https software-properties-common
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wget -q -O - https://packages.grafana.com/gpg.key | apt-key add -
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echo "deb https://packages.grafana.com/oss/deb stable main" > /etc/apt/sources.list.d/grafana.list
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apt-get update
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apt-get install -y grafana
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log_step "Step 5: Starting services..."
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systemctl daemon-reload
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systemctl enable prometheus node-exporter grafana-server
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systemctl start prometheus node-exporter grafana-server
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sleep 3
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log_info "========================================="
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log_info "Observability Stack Installation Complete!"
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log_info "========================================="
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echo ""
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log_info "Services:"
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echo " - Prometheus: http://192.168.1.82:9090"
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echo " - Grafana: http://192.168.1.82:3000"
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echo " - Node Exporter: http://192.168.1.82:9100"
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echo ""
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log_info "Grafana default credentials:"
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echo " Username: admin"
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echo " Password: admin (change on first login)"
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echo ""
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log_info "Next steps:"
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echo " 1. Access Grafana and change default password"
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echo " 2. Add Prometheus as data source (http://localhost:9090)"
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echo " 3. Import dashboards from grafana.com/dashboards"
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echo " 4. Configure alerting rules"
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