service manager script added

This commit is contained in:
Guru Swarupa 2024-09-16 23:02:05 +05:30
parent 6838811e74
commit d608d06fc9
3 changed files with 291 additions and 0 deletions

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@ -0,0 +1,273 @@
#!/bin/sh -e
# Load common script functions
. ../common-script.sh
#external services directory
SCRIPT_DIR="./services"
# Function to show the main menu
show_menu() {
clear
echo "============================"
echo " Service Management Menu"
echo "============================"
echo "1. View all services"
echo "2. View enabled services"
echo "3. View disabled services"
echo "4. Add a new service"
echo "5. Remove a service"
echo "6. Start a service"
echo "7. Stop a service"
echo "8. Enable a service"
echo "9. Disable a service"
echo "10. Create a service from external scripts"
echo "11. Exit"
echo "============================"
}
# Function to view all services
view_all_services() {
echo "Listing all services..."
$ESCALATION_TOOL systemctl list-units --type=service --all --no-legend | awk '{print $1}' | sed 's/\.service//' | more
}
# Function to view enabled services
view_enabled_services() {
echo "Listing enabled services..."
$ESCALATION_TOOL systemctl list-unit-files --type=service --state=enabled --no-legend | awk '{print $1}' | sed 's/\.service//' | more
}
# Function to view disabled services
view_disabled_services() {
echo "Listing disabled services..."
$ESCALATION_TOOL systemctl list-unit-files --type=service --state=disabled --no-legend | awk '{print $1}' | sed 's/\.service//' | more
}
# Function to view started services
view_started_services() {
echo "Listing started services:"
$ESCALATION_TOOL systemctl list-units --type=service --state=running --no-pager | head -n -6 | awk 'NR>1 {print $1}' | more
}
# Function to add a new service
add_service() {
while [ -z "$SERVICE_NAME" ]; do
echo "Enter the name of the new service (e.g., my_service):"
read -r SERVICE_NAME
done
echo "Enter the description of the service:"
read -r SERVICE_DESCRIPTION
echo "Enter the command to execute the service (e.g., /usr/local/bin/my_service.sh):"
read -r EXEC_START
echo "Enter the user to run the service as (leave empty for default):"
read -r SERVICE_USER
echo "Enter the working directory for the service (leave empty for default):"
read -r WORKING_DIRECTORY
echo "Enter the restart policy (e.g., always, on-failure; leave empty for no restart):"
read -r RESTART_POLICY
# Create the service unit file
SERVICE_FILE="/etc/systemd/system/$SERVICE_NAME.service"
# Create the service file with conditionals for optional fields
{
echo "[Unit]"
echo "Description=$SERVICE_DESCRIPTION"
echo ""
echo "[Service]"
echo "ExecStart=$EXEC_START"
[ -n "$SERVICE_USER" ] && echo "User=$SERVICE_USER"
[ -n "$WORKING_DIRECTORY" ] && echo "WorkingDirectory=$WORKING_DIRECTORY"
[ -n "$RESTART_POLICY" ] && echo "Restart=$RESTART_POLICY"
echo ""
echo "[Install]"
echo "WantedBy=multi-user.target"
} | $ESCALATION_TOOL tee "$SERVICE_FILE" > /dev/null
# Set permissions and reload systemd
$ESCALATION_TOOL chmod 644 "$SERVICE_FILE"
$ESCALATION_TOOL systemctl daemon-reload
echo "Service $SERVICE_NAME has been created and is ready to be started."
# Optionally, enable and start the service
echo "Do you want to start and enable the service now? (y/n)"
read -r START_ENABLE
if [ "$START_ENABLE" = "y" ]; then
$ESCALATION_TOOL systemctl start "$SERVICE_NAME"
$ESCALATION_TOOL systemctl enable "$SERVICE_NAME"
echo "Service $SERVICE_NAME has been started and enabled."
else
echo "Service $SERVICE_NAME has been created but not started."
fi
}
# Function to remove a service
remove_service() {
echo "Enter the name of the service to remove (e.g., my_service):"
read -r SERVICE_NAME
SERVICE_FILE="/etc/systemd/system/$SERVICE_NAME.service"
if [ -f "$SERVICE_FILE" ]; then
echo "Stopping and disabling the service..."
$ESCALATION_TOOL systemctl stop "$SERVICE_NAME"
$ESCALATION_TOOL systemctl disable "$SERVICE_NAME"
echo "Removing the service file..."
$ESCALATION_TOOL rm -f "$SERVICE_FILE"
$ESCALATION_TOOL systemctl daemon-reload
echo "Service $SERVICE_NAME has been removed."
else
echo "Service $SERVICE_NAME does not exist."
fi
}
# Function to start a service
start_service() {
view_disabled_services
echo "Enter the name of the service to start (e.g., my_service):"
read -r SERVICE_NAME
if $ESCALATION_TOOL systemctl start "$SERVICE_NAME"; then
echo "Service $SERVICE_NAME has been started."
else
echo "Failed to start service: $SERVICE_NAME."
fi
}
# Function to stop a service
stop_service() {
view_started_services
echo "Enter the name of the service to stop (e.g., my_service):"
read -r SERVICE_NAME
if $ESCALATION_TOOL systemctl stop "$SERVICE_NAME"; then
echo "Service $SERVICE_NAME has been stopped."
else
echo "Failed to stop service: $SERVICE_NAME."
fi
}
# Function to enable a service
enable_service() {
view_disabled_services
echo "Enter the name of the service to enable (e.g., my_service):"
read -r SERVICE_NAME
if $ESCALATION_TOOL systemctl enable "$SERVICE_NAME"; then
echo "Service $SERVICE_NAME has been enabled."
else
echo "Failed to enable service: $SERVICE_NAME."
fi
}
# Function to enable a service
disable_service() {
view_enabled_services
echo "Enter the name of the service to disable (e.g., my_service):"
read -r SERVICE_NAME
if $ESCALATION_TOOL systemctl disable "$SERVICE_NAME"; then
echo "Service $SERVICE_NAME has been enabled."
else
echo "Failed to enable service: $SERVICE_NAME."
fi
}
# Function to create, start, and enable a service from an external service file
create_service_from_external() {
# List all .service files in the SCRIPT_DIR
echo "============================"
echo "Listing available service files"
echo "============================"
for FILE in "$SCRIPT_DIR"/*.service; do
echo "$(basename "$FILE")"
done
echo "Enter the filename (without the .service extension) of the service to create:"
read -r SERVICE_NAME
SERVICE_FILE="$SCRIPT_DIR/$SERVICE_NAME.service"
if [ ! -f "$SERVICE_FILE" ]; then
echo "Service file $SERVICE_FILE does not exist."
return
fi
echo "Enter the username to run the service as (leave empty for no specific user):"
read -r SERVICE_USER
# Create the systemd service file path
SYSTEMD_SERVICE_FILE="/etc/systemd/system/$SERVICE_NAME.service"
# Add or update the User= line in the service file
if [ -n "$SERVICE_USER" ]; then
# Check if User= exists and append username if needed
if grep -q '^User=' "$SERVICE_FILE"; then
# Update the existing User= line with the new username
sed -i "s/^User=.*/User=$SERVICE_USER/" "$SERVICE_FILE"
else
# Add the User= line if it doesn't exist
sed -i '/^\[Service\]/a User='"$SERVICE_USER" "$SERVICE_FILE"
fi
fi
# Copy the modified service file to /etc/systemd/system/
$ESCALATION_TOOL cp "$SERVICE_FILE" "$SYSTEMD_SERVICE_FILE"
# Set permissions and reload systemd
$ESCALATION_TOOL chmod 644 "$SYSTEMD_SERVICE_FILE"
$ESCALATION_TOOL systemctl daemon-reload
echo "Service $SERVICE_NAME has been created and is ready to be started."
# Optionally, enable and start the service
echo "Do you want to start and enable the service now? (y/n)"
read -r START_ENABLE
if [ "$START_ENABLE" = "y" ]; then
$ESCALATION_TOOL systemctl start "$SERVICE_NAME"
$ESCALATION_TOOL systemctl enable "$SERVICE_NAME"
echo "Service $SERVICE_NAME has been started and enabled."
else
echo "Service $SERVICE_NAME has been created but not started."
fi
}
main() {
while true; do
show_menu
echo "Enter your choice:"
read -r CHOICE
case $CHOICE in
1) view_all_services ;;
2) view_enabled_services ;;
3) view_disabled_services ;;
4) add_service ;;
5) remove_service ;;
6) start_service ;;
7) stop_service ;;
8) enable_service ;;
9) disable_service ;;
10) create_service_from_external ;;
11) echo "Exiting..."; exit 0 ;;
*) echo "Invalid choice. Please try again." ;;
esac
echo "Press [Enter] to continue..."
read -r dummy
done
}
checkEnv
checkEscalationTool
main

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/etc/systemd/system/
[Unit]
Description=i3lock on Lid Close
Before=sleep.target
[Service]
User=
Type=forking
Environment=DISPLAY=:0
ExecStart=/usr/bin/i3lock
[Install]
WantedBy=sleep.target

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@ -12,6 +12,10 @@ script = "bluetooth-control.sh"
name = "Numlock on Startup"
script = "numlock.sh"
[[data]]
name = "Service Manager"
script = "service-control.sh"
[[data]]
name = "Monitor Control"