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imusayev
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Extend Bash script for interactive kickstart script generation
1 parent 6632ae1 commit 16b2764

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2 files changed

+79
-9
lines changed

2 files changed

+79
-9
lines changed

‎scripts/make_iso.sh‎

Lines changed: 53 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -4,7 +4,9 @@
44
# Name : make_iso.sh #
55
# Author : Ibrahim Musayev #
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# Purpose : creates a new ISO image named CentOS-7-x86_64.iso and includes #
7-
# latest version of kickstart script. #
7+
# latest version of kickstart script. Also, The script provides #
8+
# an interactive menu for the user to choose between generating #
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# a new kickstart script or proceeding with an existing one. #
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# History : 15.05.23 Ibrahim Musayev, creation #
911
################################################################################
1012

@@ -16,14 +18,56 @@ mnt_iso_dir="/mnt/iso"
1618
tmp_workdir="/tmp/workdir"
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tmp_workdir_iso="$tmp_workdir/iso"
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kickstart_dir="$tmp_workdir_iso/kickstart"
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python_replace_parameters="replace_parameters_in_ks_cfg.py"
1922
ks_cfg=$1
2023

21-
# Check if the kickstart script name is provided
22-
if [ -z "$1" ]; then
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read -p "Please provide the name of the kickstart script: " ks_cfg
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else
25-
ks_cfg=$1
26-
fi
24+
detect_python_command() {
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if command -v python3 &> /dev/null; then
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python_command="python3"
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elif command -v python &> /dev/null; then
28+
python_command="python"
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else
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echo "Python is not installed."
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exit 1
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fi
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}
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35+
# Function to generate new kickstart script
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generate_new_kickstart_script() {
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echo "Generating new kickstart script..."
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$python_command $python_replace_parameters
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ks_cfg=generated-ks.cfg
40+
}
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42+
# Function to proceed with existing kickstart script
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proceed_with_existing_kickstart_script() {
44+
echo "Proceeding with existing kickstart script..."
45+
# Check if the kickstart script name is provided
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if [ -z "$1" ]; then
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read -p "Please provide the name of the kickstart script: " ks_cfg
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else
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ks_cfg=$1
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fi
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}
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detect_python_command
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echo "Do you want to generate a new kickstart script with the new network configuration or proceed with an existing one?"
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select option in "Generate new kickstart script" "Proceed with existing kickstart script"; do
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case $option in
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"Generate new kickstart script")
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generate_new_kickstart_script
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break
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;;
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"Proceed with existing kickstart script")
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proceed_with_existing_kickstart_script
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break
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;;
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*)
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echo "Invalid option. Please try again."
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;;
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esac
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done
2771

2872
# Check if the ISO file exists in the Downloads folder and proceed further
2973
if [ -f "$downloads_dir/$iso_file" ]; then
@@ -34,7 +78,7 @@ if [ -f "$downloads_dir/$iso_file" ]; then
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sudo mkdir -p "$mnt_iso_dir"
3579
else
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echo "Unmount $mnt_iso_dir directory before starting..."
37-
sudo umount $mnt_iso_dir
81+
sudo umount $mnt_iso_dir 2> /dev/null
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fi
3983

4084
# Check if the /tmp/workdir directory exists
@@ -76,7 +120,7 @@ if [ -f "$downloads_dir/$iso_file" ]; then
76120
echo "$new_iso_name File successfully created..."
77121
sudo mv $new_iso_name $new_iso_dir
78122
echo "The new file is moved to the $new_iso_dir directory..."
79-
sudo umount "$mnt_iso_dir"
123+
sudo umount "$mnt_iso_dir" 2> /dev/null
80124
else
81125
echo "$new_iso_name File creation failed. Exiting..."
82126
exit 1

‎scripts/replace_parameters_in_ks_cfg.py‎

Lines changed: 26 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,26 @@
1+
#!/usr/bin/python3
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3+
def replace_parameters_in_ks_cfg(file_path="vm-ks.cfg", output_file_path="generated-ks.cfg"):
4+
5+
with open(file_path, "r") as file:
6+
content = file.read()
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netmask = input("Enter the netmask value: ")
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ipaddr = input("Enter the IP address value: ")
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gateway = input("Enter the gateway value: ")
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nameserver = input("Enter the nameserver value: ")
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hostname = input("Enter the hostname value (FQDN): ")
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14+
content = content.replace("@ipaddr", ipaddr)
15+
content = content.replace("@netmask", netmask)
16+
content = content.replace("@gateway", gateway)
17+
content = content.replace("@nameserver", nameserver)
18+
content = content.replace("@hostname", hostname)
19+
20+
with open(output_file_path, "w") as file:
21+
file.write(content)
22+
file.write("\n\n# This file generated by a Python script. Don't edit directly.")
23+
24+
print(f"Updated content written to {output_file_path}")
25+
26+
replace_parameters_in_ks_cfg()

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