Log all services to memory (#4587)

* Log all services to RAM

* Fix tests workdir

* Rotate logs when they reach 10MB and keep only 1 archive

* Gracefully handle shutdown

* Add note about gracetime not working

* Fix logs permission, create fake logs for devcontainer

* Remove empty line

* Update docker/rootfs/etc/services.d/frigate/run

* Fix fake Frigate shebang

docker/rootfs/etc/cont-init.d/prepare-logs.sh

@@ -0,0 +1,11 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+# Prepare the logs folder for s6-log
+
+set -o errexit -o nounset -o pipefail
+
+dirs=(/dev/shm/logs/frigate /dev/shm/logs/go2rtc /dev/shm/logs/nginx)
+
+mkdir -p "${dirs[@]}"
+chown nobody:nogroup "${dirs[@]}"
+chmod 02755 "${dirs[@]}"