145 lines
5.2 KiB
Django/Jinja
145 lines
5.2 KiB
Django/Jinja
#!/bin/bash
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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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BLUE='\033[1;34m'
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NC='\033[0m' # No Color
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# Ask for and set the hostname
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echo -e "${BLUE}Enter the hostname:${NC}"
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read -r new_hostname
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# Detect the network interface
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network_interface=$(nmcli -t -f DEVICE connection show --active | head -n 1)
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# Ask for and set the IP address
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echo -e "${BLUE}Enter the IP address (eg.: 10.11.x.x/24):${NC}"
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read -r ip_address
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# Ask for and set the DNS server
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default_dns1="10.11.23.10"
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default_dns2="10.11.23.18"
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echo -e "${BLUE}Enter the DNS server (default: $default_dns1, $default_dns2):${NC}"
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read -r dns_server
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dns_server=${dns_server:-"$default_dns1 $default_dns2"}
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# Ask if Btrfs compression should be enabled
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if [[ $(df -T / | awk 'NR==2 {print $2}') == "btrfs" ]]; then
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echo -e "${BLUE}Do you want to enable Btrfs compression? (y/n):${NC}"
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read -r enable_compression
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fi
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if [[ "$enable_compression" == "y" || "$enable_compression" == "Y" ]]; then
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# Ask for the use case
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echo -e "${BLUE} the use case:${NC}"
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echo "1. Databases, File Storage, etc (recommended compression level: 15)"
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echo "2. Real-time compression (recommended compression level: 3)"
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echo "3. Custom compression level"
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read -r use_case
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# Set the recommended compression level based on the use case
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case "$use_case" in
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1) compression_level=15 ;;
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2) compression_level=3 ;;
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3) echo -e "${BLUE}Enter the custom compression level (1-15):${NC}"
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read -r compression_level ;;
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*) echo -e "${RED}Invalid use case. Exiting script.${NC}"; exit 1 ;;
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esac
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fi
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# Ask if CheckMK Agent should be installed
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echo -e "${BLUE}Do you want to install the CheckMK Agent? (y/n):${NC}"
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read -r install_checkmk_agent
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# Ask if ports and services should be opened
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echo -e "${BLUE}Do you want to open any ports or services? (y/n):${NC}"
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read -r open_ports_services
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if [[ "$open_ports_services" == "y" || "$open_ports_services" == "Y" ]]; then
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# Ask for and set the services to open
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echo -e "${BLUE}Enter the services to open (comma-separated):${NC}"
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read -r services
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# Ask for and set the ports to open
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echo -e "${BLUE}Enter the ports to open (comma-separated):${NC}"
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read -r ports
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fi
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# Apply Changes
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echo -e "${BLUE}Are you sure you want to apply the changes? This may cause a loss of SSH connection. (y/n):${NC}"
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read -r answer
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# Check the user's response
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if [[ "$answer" == "y" || "$answer" == "Y" ]]; then
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# Comment out the script execution line in .bashrc
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sed -i '/~\/firstrun\.sh/s/^/#/' ~/.bashrc
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hostnamectl set-hostname "$new_hostname"
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nmcli device modify "$network_interface" ipv4.dns "$dns_server" > /dev/null
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nmcli device modify "$network_interface" ipv6.method ignore > /dev/null
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nmcli device modify "$network_interface" ipv4.addresses "$ip_address" ipv4.method manual > /dev/null
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# Modify /etc/hosts file
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ip_address=$(echo "$ip_address" | sed 's/.\{3\}$//')
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if grep "$ip_address" /etc/hosts > /dev/null 2>&1; then
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echo "IP address already exists in /etc/hosts"
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else
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# Add IP address and hostname after the "127.0.0.1 localhost" entry
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sed -i '1a\'"$ip_address\t$new_hostname" /etc/hosts
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if [ $? -eq 0 ]; then
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echo "IP address and hostname added to /etc/hosts"
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else
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echo "Failed to add IP address and hostname to /etc/hosts"
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fi
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fi
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# Modify Btrfs compression settings in /etc/fstab
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if [[ "$enable_compression" == "y" || "$enable_compression" == "Y" ]]; then
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if ! grep -q "compress=zstd" /etc/fstab; then
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sed -i "/btrfs/s/defaults/defaults,compress=zstd:$compression_level/" /etc/fstab
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else
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sed -i "/btrfs/s/compress=zstd:[0-9]*/compress=zstd:$compression_level/" /etc/fstab
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fi
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else
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if grep -q "compress=zstd" /etc/fstab; then
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sed -i "/btrfs/s/,compress=zstd:[0-9]*//" /etc/fstab
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fi
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fi
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if [[ "$install_checkmk_agent" == "y" || "$install_checkmk_agent" == "Y" ]]; then
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# Run the CheckMK Agent installation script
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bash Scripts/install_checkmk_agent.sh
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fi
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if [[ "$open_ports_services" == "y" || "$open_ports_services" == "Y" ]]; then
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# Open the specified services
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IFS=',' read -ra service_array <<< "$services"
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for service in "${service_array[@]}"; do
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firewall-cmd --add-service="$service" --permanent > /dev/null
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done
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# Open the specified ports
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IFS=',' read -ra port_array <<< "$ports"
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for port in "${port_array[@]}"; do
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firewall-cmd --add-port="$port"/tcp --permanent > /dev/null
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done
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firewall-cmd --reload > /dev/null 2>&1
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fi
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# Open port 6556/tcp for CheckMK Agent if it was installed
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if [[ "$install_checkmk_agent" == "y" || "$install_checkmk_agent" == "Y" ]]; then
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firewall-cmd --add-port=6556/tcp --permanent > /dev/null 2>&1
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firewall-cmd --reload > /dev/null 2>&1
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else
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firewall-cmd --remove-port=6556/tcp --permanent > /dev/null 2>&1
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firewall-cmd --reload > /dev/null 2>&1
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fi
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echo -e "${GREEN}Changes applied successfully.${NC}"
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else
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echo -e "${RED}Changes not applied. Exiting script.${NC}"
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exit 0
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fi |