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eb4d88 Tebby Dog 2025-07-06 21:43:46 1 
# Mount-Point-Service-Sync
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372780 Tebby Dog 2025-07-06 22:32:27 3
Skip the fairy-tale, just give me the code already --> [Click Here](https://teb.codes/2-Code/Bash/Mount-Point-Service-Sync#setup)
f76050 Tebby Dog 2025-07-06 22:32:12 4
32ed51 Tebby Dog 2025-07-06 21:44:47 5
## Intro
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----------------
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eb4d88 Tebby Dog 2025-07-06 21:43:46 8
Plex kept shitting the bed every time the SMB share randomly dropped offline. After getting sick of jumping in to fix it manually over and over, I hacked together a script that shuts down the Plex service when the share bails, tries to remount the damn thing, and fires Plex back up once the share is stable again.
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# MPSS (Mount Point Service Sync)
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=====================================
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MPSS dynamically controls start/stop of services (plexmediaserver, tdarr_node, Tdarr_Uptime, emby-server) based on presence or absence of "MOUNT_POINT_ALIVE" file on a network share. It logs actions to /var/log/mpss.log and trims the log to 200 lines.
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### Basic Concept
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---------------
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1. Crontab that runs this script regularly
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2. Script checks for a file on the network share
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* If it does, ensure the service is running
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* If it does not, ensure the service is stopped
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## Setup
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--------
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### Step 1: Download the Script
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------------------------------
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Download the script from this git repository:
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```bash
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mkdir /opt/mpss
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git clone https://github.com/tebwritescode/mpss.git
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cp ./mpss/mpss.sh /opt/mpss/mpss.sh
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```
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edb864 Tebby Dog 2025-07-06 21:45:55 38
Copy-Pasta is also an option
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```bash
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#!/bin/bash
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#MPSS - Mount Point Service Sync
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# Disables/Enables plexmediaserver, tdarr_node service based on the existance of
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# a file on the network share
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FILE="/path/to/mount/MOUNT_POINT_ALIVE" #The location of the file on the share
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SERVICE="service" #Service that can be started/stopped with systemctl
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LOG_FILE="/var/log/mpss.log" #Where to save the log
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MAX_LINES=200 #How many lines of logs to keep in the log file
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# Get the current number of lines in the log file
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CURRENT_LINES=$(wc -l < "$LOG_FILE")
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# If there are more than MAX_LINES, truncate the file to keep only the last MAX_LINES lines
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if [ $CURRENT_LINES -gt $MAX_LINES ]; then
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echo "$(date) INFO: MPSS: Trimming log file" >> /var/log/mpss.log 2>&1
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tail -n $MAX_LINES $LOG_FILE >> mpss-temp.log
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mv mpss-temp.log "$LOG_FILE"
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fi
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echo "$(date) INFO: MPSS: Attempting to mount all" >> /var/log/mpss.log 2>&1
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sudo mount -a >> /var/log/mpss.log 2>&1
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if [ -e "${FILE}" ]; then
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# Start the service if the file exists
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echo "$(date) INFO: MPSS: ${FILE} found! Checking if ${SERVICE} is active and if it isn't starting it." >> /var/log/mpss.log 2>&1
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sudo systemctl is-active --quiet $SERVICE >> /var/log/mpss.log 2>&1 || systemctl start $SERVICE >> /var/log/mpss.log 2>&1
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else
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# Stop the service if the file does not exist
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echo "$(date) INFO: MPSS: ${FILE} not found! Checking if ${SERVICE} is active and if it is stopping it." >> /var/log/mpss.log 2>&1
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sudo systemctl is-active --quiet $SERVICE >> /var/log/mpss.log 2>&1 && systemctl stop $SERVICE >> /var/log/mpss.log 2>&1
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fi
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```
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eb4d88 Tebby Dog 2025-07-06 21:43:46 75
### Step 2: Customize the Script
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-------------------------------
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Customize the script by modifying the variables at the top of the file:
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```bash
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nano /opt/mpss/mpss.sh
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```
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Modify `FILE`, `SERVICE`, `LOG_FILE`, and `MAX_LINES` to match your setup.
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Example:
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```bash
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FILE="/path/to/mount/MOUNT_POINT_ALIVE" #The location of the file on the share
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SERVICE="plexmediaserver" #Service that can be started/stopped with systemctl
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LOG_FILE="/var/log/mpss.log" #Where to save the log
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MAX_LINES=200 #How many lines of logs to keep in the log file
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```
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Save your changes with <kbd>ctrl</kbd> + <kbd>x</kbd>, then <kbd>y</kbd>, then <kbd>return</kbd>.
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### Step 3: Create the Log File
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---------------------------
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Create the log file:
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```bash
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touch /var/log/mpss.log
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```
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### Step 4: Create the Check File
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------------------------------
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Create the check file on the network share:
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```bash
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touch /path/to/mount/MOUNT_POINT_ALIVE
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```
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### Step 5: Make the Script Executable
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------------------------------------
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Make the script executable:
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```bash
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chmod +x /opt/mpss/mpss.sh
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```
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### Step 6: Schedule the Script with Crontab
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-----------------------------------------
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Schedule the script to run regularly using crontab. Add the following line to your crontab file (use `crontab -e` to edit):
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```bash
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*/1 * * * * /opt/mpss/mpss.sh
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```
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Note: Be aware that some versions of cron do not support all times you can create on crontab.guru, you will get an error when saving the file.
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That's it! Your MPSS script should now be set up to automatically start/stop services based on the presence or absence of the `MOUNT_POINT_ALIVE` file on your network share.