Reduce amount layers of the docker image (#4448)

* Reduce amount layers of the docker image

* Fix models file name

docker/rootfs/etc/services.d/go2rtc/finish

@@ -1,5 +1,7 @@
-#!/usr/bin/execlineb -S1
-if { s6-test ${1} -ne 0 }
-if { s6-test ${1} -ne 256 }
+#!/usr/bin/with-contenv bash
+# shellcheck shell=bash
+# Take down the S6 supervision tree when the process fails
 
-s6-svscanctl -t /var/run/s6/services
+if [[ "${1}" -ne 0 && "${1}" -ne 256 ]]; then
+  exec s6-svscanctl -t /var/run/s6/services
+fi

docker/rootfs/etc/services.d/go2rtc/run

@@ -1,12 +1,13 @@
 #!/usr/bin/with-contenv bash
+# shellcheck shell=bash
 
 # https://gist.github.com/mohanpedala/1e2ff5661761d3abd0385e8223e16425?permalink_comment_id=3945021
 set -euo pipefail
 
 if [[ -f "/config/frigate-go2rtc.yaml" ]]; then
-    CONFIG_PATH=/config/frigate-go2rtc.yaml
+    config_path="/config/frigate-go2rtc.yaml"
 else
-    CONFIG_PATH=/usr/local/go2rtc/sbin/go2rtc.yaml
+    config_path="/usr/local/go2rtc/go2rtc.yaml"
 fi
 
-exec /usr/local/go2rtc/sbin/go2rtc -config="$CONFIG_PATH"
+exec go2rtc -config="${config_path}"

docker/rootfs/etc/services.d/nginx/finish

@@ -1,5 +1,7 @@
-#!/usr/bin/execlineb -S1
-if { s6-test ${1} -ne 0 }
-if { s6-test ${1} -ne 256 }
+#!/usr/bin/with-contenv bash
+# shellcheck shell=bash
+# Take down the S6 supervision tree when the process fails
 
-s6-svscanctl -t /var/run/s6/services
+if [[ "${1}" -ne 0 && "${1}" -ne 256 ]]; then
+  exec s6-svscanctl -t /var/run/s6/services
+fi

docker/rootfs/etc/services.d/nginx/run

@@ -1,2 +1,4 @@
-#!/usr/bin/execlineb -P
-/usr/local/nginx/sbin/nginx
+#!/usr/bin/with-contenv bash
+# shellcheck shell=bash
+
+exec nginx