nodeops-monitoring.sh

#!/bin/bash

# Check if the script is running as root
if [ "$EUID" -ne 0 ]; then
    echo "This script must be run as root."
    exit 1
fi

# Update package lists
echo "Updating package lists..."
apt-get update -y


# Create directory for keyrings
echo "Creating directory for keyrings..."
mkdir -p /etc/apt/keyrings
chmod 0755 /etc/apt/keyrings

# Add Grafana signing key
echo "Adding Grafana signing key..."
curl -sSL https://apt.grafana.com/gpg.key | gpg --dearmor | tee /etc/apt/keyrings/grafana.gpg > /dev/null

# Add Grafana repository
echo "Adding Grafana repository..."
echo "deb [signed-by=/etc/apt/keyrings/grafana.gpg] https://apt.grafana.com stable main" | tee /etc/apt/sources.list.d/grafana.list

# Update package lists again
echo "Updating package lists again..."
apt-get update -y

# Install promtail
echo "Installing promtail..."
apt-get install -y promtail

echo "promtail installation completed."

# Copy promtail service configuration
echo "Copying promtail service configuration..."
 tee /etc/systemd/system/promtail.service << EOF
[Unit]
Description=Promtail service
After=network.target

[Service]
Type=simple
User=root
ExecStart=/usr/bin/promtail -config.file /etc/promtail/config.yml
TimeoutSec=60
Restart=on-failure
RestartSec=2

[Install]
WantedBy=multi-user.target
EOF

# Restart promtail service
echo "Restarting promtail service..."
 systemctl daemon-reload
 systemctl restart promtail

echo "Done!"



# Get public IP address
public_ip=$(curl ifconfig.me)

# Get hostname
hostname=$(hostname)

uuid=$(uuidgen)
uuid_2=$(uuidgen)
title="Logs-$hostname-$public_ip"
job=$hostname-$public_ip
folder_uuid=$(uuidgen)
folder_name="$hostname-$public_ip-Dashboard"
metric_name="Metric-$hostname-$public_ip"
echo "Job name is, $job"

echo "Title name is $title"

# Ask the user for the log file path
read -p "Please enter the log file path: " log_path

# Confirm the provided log path
echo "You entered: $log_path"
read -p "Is this correct? (y/n) " confirm
if [ "$confirm" = "y" ] || [ "$confirm" = "Y" ]; then
    echo "Log file path confirmed: $log_path"
else
    echo "Log file path not confirmed. Please try again."
    exit 1
fi

# Generate the promtail.yml file
cat << EOF > /etc/promtail/config.yml
server:
  http_listen_port: 9080
  grpc_listen_port: 0

positions:
  filename: /tmp/positions.yaml

clients:
  - url: https://loki.services.supra.com/loki/api/v1/push

scrape_configs:
  - job_name: smr
    static_configs:
      - targets:
        - localhost
        labels:
          job: $hostname-$public_ip
          __path__: "$log_path"
EOF

curl -X POST \
  'https://monitoring.services.supra.com/api/folders' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer glsa_RL9Ld2zAHE2aM5MUwGjOWoMmRAgxprHP_91dd26c9' \
  -d "{ \"title\": \"$folder_name\", \"uid\": \"$folder_uuid\" }"


# Set permissions for the promtail.yml file
chmod 0644 /etc/promtail/config.yml
service promtail restart

echo "Updating Dashboard!"


# file_content=$(<dashboard.json)
file_content=$(curl -sL "https://gist.githubusercontent.com/Supra-RaghulRajeshR/33d027b21be6f190c0c66e34fee3a9a1/raw/3433ad66515ad5c4dba1f3e1cba8006c76d3004b/node-logs.json")

# Use sed to substitute the values in the JSON structure
# updated_content=$(echo "$file_content" | sed "s/\"title\": \"\$title\"/\"title\": \"$title\"/g; s/\"uid\": \"\$uuid\"/\"uid\": \"$uuid\"/g")


updated_content=$(echo "$file_content" | sed "s/\"title\": \"\$title\"/\"title\": \"$title\"/g; s/\"uid\": \"\$uuid\"/\"uid\": \"$uuid\"/g; s/job=\$job_name/job=\`$job\`/g; s/{{ folder_uuid }}/$folder_uuid/g")


# Write the updated content back to the file
echo "$updated_content" > new-dashboard.json

echo "Dashboard Updated!"

echo "Creating Dashboard"

curl -X POST   https://monitoring.services.supra.com/api/dashboards/db   -H 'Authorization: Bearer glsa_RL9Ld2zAHE2aM5MUwGjOWoMmRAgxprHP_91dd26c9'  -H 'Content-Type: application/json'   -d @new-dashboard.json 

rm -rf new-dashboard.json 

echo "======Installing the Node exporter========="
echo "-----------------Checking the node exporter is installed, if not will install---------------------"
pattern=node_exporter
if which node_exporter; then
    echo "node exporter exits!"
else
    echo "node exporter is not installed.";
    wget https://github.com/prometheus/node_exporter/releases/download/v1.3.1/node_exporter-1.3.1.linux-amd64.tar.gz 
    tar xvf node_exporter-1.3.1.linux-amd64.tar.gz  
     cp node_exporter-1.3.1.linux-amd64/node_exporter /usr/local/bin  
    rm -rf node_exporter-1.3.1.linux-amd64 node_exporter-1.3.1.linux-amd64.tar.gz
    if which node_exporter; then
        echo "node exporter exits!"
    else
        echo "**package installation is facing an issue please contact the admin**"
        exit 1
    fi

fi
 useradd --no-create-home --shell /bin/false node_exporter
echo "creating service file for node-exporter" 
 tee /etc/systemd/system/node_exporter.service << EOF
[Unit]
Description=Node Exporter
Wants=network-online.target
After=network-online.target

[Service]
User=node_exporter
Group=node_exporter
Type=simple
ExecStart=/usr/local/bin/node_exporter
Restart=always
RestartSec=3

[Install]
WantedBy=multi-user.target
EOF



echo "--------Reloading daemon----------"
 systemctl daemon-reload
echo "-------starting and enabling the node-exporter service----------"
 systemctl enable node_exporter.service
 systemctl start node_exporter.service

echo "----------NODE exporter is running------------"



echo "Updating Dashboard!"


# file_content=$(<node-dashboard.json)
file_content=$(curl -sL "https://gist.githubusercontent.com/Supra-RaghulRajeshR/33d027b21be6f190c0c66e34fee3a9a1/raw/39e67c0feabc758d57fd78452b6dadffdb66308b/node-metrics.json")

updated_content=$(echo "$file_content" | sed "s/{{ uuid_2 }}/$uuid_2/g; s/{{ job_name }}/$job/g; s/{{ folder_uuid }}/$folder_uuid/g; s/{{ metric_name }}/$metric_name/g")


# Write the updated content back to the file
echo "$updated_content" > new-node-dashboard.json

# sed "s/{{ job_name }}/$job/g"  


echo "Dashboard Updated!"

echo "Creating Dashboard"

result=$(curl -X POST   https://monitoring.services.supra.com/api/dashboards/db   -H 'Authorization: Bearer glsa_RL9Ld2zAHE2aM5MUwGjOWoMmRAgxprHP_91dd26c9'  -H 'Content-Type: application/json'   -d @new-node-dashboard.json)

read -p "Please specify e-mail for dashboard access: " email

share_result=$(echo ${result} | jq -r --arg email "$email" '(.url) as $dashboard | {email: $email, dashboard: $dashboard}')

echo -e "Share the following information with Supra Team to get access to the dashboard:\n$share_result"
rm new-node-dashboard.json