Auto discover internal WebRTC candidate for add-on (#5089)

* Auto discover internal WebRTC candidate for add-on

* Write logs to stderr

* Fix port number

* Integrate with newest changes

* Update docs

* Use local variable more

* Use Python to write file, fix JSON->YAML

* Store into variable

* Update docs/docs/configuration/live.md

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

* Update docs/docs/configuration/live.md

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

* Update docs/docs/configuration/live.md

* Update docs/docs/configuration/live.md

* Refator s6 scripts to the new format

* Remove unneeded workaround

* Update docker/rootfs/usr/local/go2rtc/create_config.py

* Migrate logging to new s6 format

* Remove more unnecessary s6 variables

* Fix prepare-log and when go2rtc is not present in config

* Restart the whole container if either Frigate or go2rtc fails

* D

* Fix service name in finish

* Fix nginx finish comment

* Restart improvements

* Fix devcontainer

* Fix format

* Update Dockerfile

Co-authored-by: Felipe Santos <felipecassiors@gmail.com>

* Improve scripts logging

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

docker/rootfs/etc/s6-overlay/s6-rc.d/frigate/run

@@ -7,7 +7,9 @@ set -o errexit -o nounset -o pipefail
 # Tell S6-Overlay not to restart this service
 s6-svc -O .
 
-cd /opt/frigate
+echo "[INFO] Starting Frigate..." >&2
+
+cd /opt/frigate || echo "[ERROR] Failed to change working directory to /opt/frigate" >&2
 
 # Replace the bash process with the Frigate process, redirecting stderr to stdout
 exec 2>&1