dietpi-software: Redis: solve startup warning about missing memory overcomit

Author: MichaIng

.update/patches

@@ -2179,6 +2179,14 @@ Patch_9_13()
 		# Remove Google AIY and Mycroft AI
 		grep -q '^[[:blank:]]*aSOFTWARE_INSTALL_STATE\[169\]=' /boot/dietpi/.installed && G_EXEC sed --follow-symlinks -i '/^[[:blank:]]*aSOFTWARE_INSTALL_STATE\[169\]=/d' /boot/dietpi/.installed
 		grep -q '^[[:blank:]]*aSOFTWARE_INSTALL_STATE\[176\]=' /boot/dietpi/.installed && G_EXEC sed --follow-symlinks -i '/^[[:blank:]]*aSOFTWARE_INSTALL_STATE\[176\]=/d' /boot/dietpi/.installed
+
+		# Redis
+		if grep -q '^[[:blank:]]*aSOFTWARE_INSTALL_STATE\[91\]=2' /boot/dietpi/.installed
+		then
+			G_DIETPI-NOTIFY 2 'Enabling memory overcomit for Redis server'
+			G_EXEC eval 'echo '\''vm.overcommit_memory=1'\'' > /etc/sysctl.d/98-dietpi-redis.conf'
+			G_EXEC sysctl -p /etc/sysctl.d/98-dietpi-redis.conf
+		fi		
 	fi
 
 	# RPi firmware migration: Do after all other patches

CHANGELOG.txt

@@ -19,6 +19,7 @@ Bug fixes:
 - DietPi-Software | RPi.GPIO: Resolved a regression where the installation failed on Bullseye systems as the python3-rpi-lgpio compatibility package exists since Bookworm only.
 - DietPi-Software | fish: Resolved a syntax error on uninstall, and assured that all users who use fish as login shell are altered to use bash instead. Many thanks to @echtfrank for reporting these issues: https://github.com/MichaIng/DietPi/issues/7500
 - DietPi-Software | Home Assistant: Resolved an issue where latest HA could not be installed/updated due to a raised Python requirement on v3.13.2. Many thanks to @whyisthisbroken and @Yougoshatenshi for reporting this issue: https://github.com/MichaIng/DietPi/issues/7525
+- DietPi-Software | Redis: Solved a startup warning that memory overcommit should be enabled. This is applied for fresh Redis installs as well as via DietPi update for existing instances.
 
 As always, many smaller code performance and stability improvements, visual and spelling fixes have been done, too much to list all of them here. Check out all code changes of this release on GitHub: https://github.com/MichaIng/DietPi/pull/7540
 

dietpi/dietpi-software

@@ -2578,7 +2578,7 @@ _EOF_
 		{
 			G_DIETPI-NOTIFY 2 'Enabling IP forwarding to allow access across network interfaces'
 			echo -e 'net.ipv4.ip_forward=1\nnet.ipv6.conf.default.accept_ra=2\nnet.ipv6.conf.all.accept_ra=2\nnet.ipv6.conf.default.forwarding=1\nnet.ipv6.conf.all.forwarding=1' > "/etc/sysctl.d/dietpi-$1.conf"
-			sysctl net.ipv4.ip_forward=1 net.ipv6.conf.default.accept_ra=2 net.ipv6.conf.all.accept_ra=2 net.ipv6.conf.default.forwarding=1 net.ipv6.conf.all.forwarding=1
+			sysctl -p "/etc/sysctl.d/dietpi-$1.conf"
 		}
 
 		To_Install()
@@ -3624,6 +3624,10 @@ _EOF_
 			# Force service to start before cron
 			G_EXEC mkdir -p /etc/systemd/system/redis-server.service.d
 			G_EXEC eval 'echo -e '\''[Unit]\nBefore=cron.service'\'' > /etc/systemd/system/redis-server.service.d/dietpi.conf'
+
+			# Enable memory overcomit: https://github.com/jemalloc/jemalloc/issues/1328
+			G_EXEC eval 'echo '\''vm.overcommit_memory=1'\'' > /etc/sysctl.d/98-dietpi-redis.conf'
+			G_EXEC sysctl -p /etc/sysctl.d/98-dietpi-redis.conf
 		fi
 
 		if To_Install 89 # PHP
@@ -4105,8 +4109,8 @@ _EOF_
 			echo 'alias ipfs='\''sudo -u ipfs IPFS_PATH=/mnt/dietpi_userdata/ipfs ipfs'\' > /etc/bashrc.d/dietpi-ipfs.sh
 
 			# Raise packet receive buffer: https://github.com/lucas-clemente/quic-go/wiki/UDP-Receive-Buffer-Size
-			G_EXEC eval "echo 'net.core.rmem_max=2500000' > /etc/sysctl.d/dietpi-ipfs.conf"
-			G_EXEC sysctl -w net.core.rmem_max=2500000
+			G_EXEC eval 'echo '\''net.core.rmem_max=2500000'\'' > /etc/sysctl.d/dietpi-ipfs.conf'
+			G_EXEC sysctl -p /etc/sysctl.d/dietpi-ipfs.conf
 		fi
 
 		if To_Install 16 # microblog.pub
@@ -8865,7 +8869,8 @@ NoNewPrivileges=true
 WantedBy=multi-user.target
 _EOF_
 			# Increase fs watcher limit: https://docs.syncthing.net/users/faq.html#how-do-i-increase-the-inotify-limit-to-get-my-filesystem-watcher-to-work
-			G_EXEC eval "echo 'fs.inotify.max_user_watches=204800' > /etc/sysctl.d/dietpi-syncthing.conf"
+			G_EXEC eval 'echo '\''fs.inotify.max_user_watches=204800'\'' > /etc/sysctl.d/dietpi-syncthing.conf'
+			G_EXEC sysctl -p /etc/sysctl.d/dietpi-syncthing.conf
 		fi
 
 		if To_Install 113 # Chromium
@@ -12336,6 +12341,7 @@ _EOF_
 		then
 			Remove_Service redis-server
 			G_AGP redis-server redis-tools 'php*-redis'
+			G_EXEC rm -f /etc/sysctl.d/98-dietpi-redis.conf
 		fi
 
 		if To_Uninstall 34 # PHP Composer