Create install.sh
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grafana-stack-new/install.sh
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grafana-stack-new/install.sh
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#!/bin/bash
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# Default versions
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DEFAULT_PROMETHEUS_VERSION="3.1.0"
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DEFAULT_NODE_EXPORTER_VERSION="1.8.2"
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# Function to display menu and get user choices
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function show_menu() {
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echo "Please select the software you would like to install (multiple selections allowed):"
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echo "1. Prometheus"
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echo "2. Node Exporter"
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echo "3. Grafana"
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echo "4. Exit"
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read -p "Enter your choice(s) as a comma-separated list (e.g., 1,2,3) [default: 4]: " choice
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}
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# Function to display progress bar
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function show_progress {
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local total=$1
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local current=$2
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local percent=$((current * 100 / total))
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printf "\r[%-70s] %d%%" "$(printf '#%.0s' $(seq 1 $percent))" "$percent"
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}
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# Function to download and install Prometheus
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function install_prometheus() {
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read -p "Enter the desired Prometheus version (e.g., v2.41.0) [default: $DEFAULT_PROMETHEUS_VERSION]: " PROMETHEUS_VERSION
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PROMETHEUS_VERSION=${PROMETHEUS_VERSION:-$DEFAULT_PROMETHEUS_VERSION}
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echo "Chosen Prometheus version: $PROMETHEUS_VERSION"
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DOWNLOAD_DIR="/tmp/prometheus-install"
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PROMETHEUS_USER="prometheus"
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PROMETHEUS_GROUP="prometheus"
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PROMETHEUS_DIR="/usr/local/bin/prometheus"
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CONFIG_DIR="/etc/prometheus"
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DATA_DIR="/var/lib/prometheus"
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echo "Creating download directory..."
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mkdir -p $DOWNLOAD_DIR
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echo "Downloading Prometheus binary..."
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cd $DOWNLOAD_DIR
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wget https://github.com/prometheus/prometheus/releases/download/v$PROMETHEUS_VERSION/prometheus-$PROMETHEUS_VERSION.linux-amd64.tar.gz
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echo "Extracting Prometheus binary..."
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tar xvfz prometheus-$PROMETHEUS_VERSION.linux-amd64.tar.gz
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echo "Copying Prometheus binary to $PROMETHEUS_DIR..."
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cp prometheus-$PROMETHEUS_VERSION.linux-amd64/prometheus $PROMETHEUS_DIR
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echo "Copying promtool to /usr/local/bin..."
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cp prometheus-$PROMETHEUS_VERSION.linux-amd64/promtool /usr/local/bin/
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echo "Creating necessary directories for Prometheus data and config..."
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mkdir -p $CONFIG_DIR $DATA_DIR
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echo "Creating Prometheus configuration file in $CONFIG_DIR..."
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cat <<EOF > $CONFIG_DIR/prometheus.yml
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global:
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scrape_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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echo "Creating $PROMETHEUS_USER user and group..."
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groupadd --system $PROMETHEUS_GROUP
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useradd -s /sbin/nologin --system -g $PROMETHEUS_GROUP $PROMETHEUS_USER
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echo "Setting ownership of directories and files..."
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chown -R $PROMETHEUS_USER:$PROMETHEUS_GROUP $CONFIG_DIR $DATA_DIR
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chown -R $PROMETHEUS_USER:$PROMETHEUS_GROUP /usr/local/bin/prometheus
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chown -R $PROMETHEUS_USER:$PROMETHEUS_GROUP /usr/local/bin/node_exporter
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echo "Creating systemd service for Prometheus..."
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cat <<EOF > /etc/systemd/system/prometheus.service
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[Unit]
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Description=Prometheus Time Series Database
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Wants=network-online.target
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After=network-online.target
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[Service]
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User=$PROMETHEUS_USER
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Group=$PROMETHEUS_GROUP
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Type=simple
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ExecStart=/usr/local/bin/prometheus \
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--config.file=$CONFIG_DIR/prometheus.yml \
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--storage.tsdb.path=$DATA_DIR
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Restart=always
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[Install]
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WantedBy=default.target
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EOF
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echo "Reloading systemd daemon..."
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systemctl daemon-reload
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echo "Enabling Prometheus service..."
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systemctl enable prometheus.service
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echo "Starting Prometheus service..."
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systemctl start prometheus.service
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echo "Checking status of Prometheus service..."
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systemctl status prometheus.service
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}
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# Function to download and install Node Exporter
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function install_node_exporter() {
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read -p "Enter the desired Node Exporter version (e.g., v1.6.0) [default: $DEFAULT_NODE_EXPORTER_VERSION]: " NODE_EXPORTER_VERSION
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NODE_EXPORTER_VERSION=${NODE_EXPORTER_VERSION:-$DEFAULT_NODE_EXPORTER_VERSION}
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echo "Chosen Node Exporter version: $NODE_EXPORTER_VERSION"
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DOWNLOAD_DIR="/tmp/node-exporter-install"
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PROMETHEUS_USER="prometheus"
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PROMETHEUS_GROUP="prometheus"
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BINARY_DIR="/usr/local/bin"
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echo "Creating download directory..."
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mkdir -p $DOWNLOAD_DIR
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echo "Downloading Node Exporter binary..."
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cd $DOWNLOAD_DIR
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wget https://github.com/prometheus/node_exporter/releases/download/v$NODE_EXPORTER_VERSION/node_exporter-$NODE_EXPORTER_VERSION.linux-amd64.tar.gz
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echo "Extracting Node Exporter binary..."
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tar xvfz node_exporter-$NODE_EXPORTER_VERSION.linux-amd64.tar.gz
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echo "Copying Node Exporter binary to $BINARY_DIR..."
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cp node_exporter-$NODE_EXPORTER_VERSION.linux-amd64/node_exporter $BINARY_DIR
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echo "Creating systemd service for Node Exporter..."
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cat <<EOF > /etc/systemd/system/node_exporter.service
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[Unit]
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Description=Node Exporter
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Wants=network-online.target
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After=network-online.target
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[Service]
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User=$PROMETHEUS_USER
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Group=$PROMETHEUS_GROUP
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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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[Install]
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WantedBy=default.target
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EOF
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echo "Reloading systemd daemon..."
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systemctl daemon-reload
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echo "Enabling Node Exporter service..."
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systemctl enable node_exporter.service
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echo "Starting Node Exporter service..."
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systemctl start node_exporter.service
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echo "Checking status of Node Exporter service..."
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systemctl status node_exporter.service
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}
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# Function to install Grafana
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function install_grafana() {
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echo "Installing Grafana using the official PPA..."
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echo "Importing Grafana repository keyring..."
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wget -q -O - https://packages.grafana.com/gpg.key | sudo apt-key add -
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echo "Adding Grafana repository..."
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echo "deb https://packages.grafana.com/oss/deb stable main" | sudo tee /etc/apt/sources.list.d/grafana.list
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echo "Updating package list..."
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sudo apt-get update
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echo "Installing Grafana..."
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sudo apt-get install -y grafana
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echo "Enabling Grafana service..."
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sudo systemctl enable grafana-server
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echo "Starting Grafana service..."
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sudo systemctl start grafana-server
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echo "Checking status of Grafana service..."
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sudo systemctl status grafana-server
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}
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# Main script execution
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show_menu
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# Convert the input choice to an array
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IFS=',' read -r -a choices <<< "$choice"
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# Execute selected installations with progress bar
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for i in "${!choices[@]}"; do
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case ${choices[$i]} in
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1)
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echo "Installing Prometheus..."
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install_prometheus
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;;
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2)
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echo "Installing Node Exporter..."
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install_node_exporter
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;;
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3)
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echo "Installing Grafana..."
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install_grafana
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;;
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4)
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echo "Exiting..."
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exit 0
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;;
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*)
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echo "Invalid choice: ${choices[$i]}. Skipping."
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;;
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esac
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done
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echo "Installation completed successfully!"
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