Limit log size and add pre-logon message

files/issue.txt

@@ -0,0 +1,19 @@
+
+              #######                   PhotonVision is the free, fast, and 
+           #############                easy-to-use computer vision solution 
+         #################              for the FIRST Robotics Competition. 
+       ######        ######   :::       
+      #####            ##*::::::::::    To configure PhotonVision, open:
+     #####     :::::::::::::::::::      
+     #### :::::::::::    ###            http://photonvision.local:5800
+     ####                ####           
+    ####                 ####           using a computer on the same network 
+    #### ::              ###            as this device.
+     #### :::::::       ####            
+     ####     ::::::::  ####            Documentation is available at: 
+     #####         ::::::::    :        
+      ######        ####:::::::::       https://docs.photonvision.org/
+       ##################    ::::::     
+         ##############                 
+           #########                    
+

install_common.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Run standard photon installer
+chmod +x ./install.sh
+./install.sh --install-nm=yes --arch=aarch64
+
+# Do additional tasks that are common across all images, 
+# but not suitable for inclusion in install.sh
+
+# Limit the maximum length of systemd-journald logs
+cat > /etc/systemd/journald.conf.d/60-limit-log-size.conf <<EOF
+# Added by Photonvision to keep the logs to a reasonable size
+[Journal]
+SystemMaxUse=100M
+EOF
+
+# Add a helpful message to the logon screen
+cp -f ./files/issue /etc/issue
+cp -f /etc/issue /etc/issue.net
+sed -i 's/#Banner none/Banner \/etc\/issue.net/g' /etc/ssh/sshd_config

install_limelight.sh

@@ -1,6 +1,6 @@
 # Run normal photon installer
-chmod +x ./install.sh
-./install.sh --install-nm=yes --arch=aarch64
+chmod +x ./install_common.sh
+./install_common.sh
 
 # edit boot partition
 install -m 644 limelight/config.txt /boot/

install_opi5.sh

@@ -34,8 +34,8 @@ freed=$(( before - after ))
 echo "Freed up $freed KiB"
 
 # run Photonvision install script
-chmod +x ./install.sh
-./install.sh --install-nm=yes --arch=aarch64
+chmod +x ./install_common.sh
+./install_common.sh
 
 echo "Installing additional things"
 apt-get install --yes --quiet libc6 libstdc++6

install_pi.sh

@@ -1,6 +1,6 @@
 # Run normal photon installer
-chmod +x ./install.sh
-./install.sh --install-nm=yes --arch=aarch64
+chmod +x ./install_common.sh
+./install_common.sh
 
 # and edit boot partition
 install -m 644 config.txt /boot/