Simple entryscript to support 3 use-cases

This entrypoint should support 3 use-cases:

1. Untouched docker image for apache (CMD is apache2-xxx)
2. Untouched docker image for php-fpm (CMD is php-fpm)
3. Extended version with custom CMD

The 2 first use-cases are handled by looking a the parameter (the CMD command).

The last one is defined by the user when extending the image. He must
know whether he extends the apache or the php-fpm image and define the
NEXTCLOUD_DOCKER_MODE value with either "apache" or "php-fpm"

This PR also removes the NEXTCLOUD_UPDATE=1 that was used to force the
script to run when the image had been extended.

.examples/dockerfiles/cron/apache/Dockerfile

@@ -7,6 +7,6 @@ RUN apt-get update && apt-get install -y \
 
 COPY supervisord.conf /
 
-ENV NEXTCLOUD_UPDATE=1
+ENV NEXTCLOUD_DOCKER_MODE=apache
 
 CMD ["/usr/bin/supervisord", "-c", "/supervisord.conf"]

.examples/dockerfiles/cron/fpm-alpine/Dockerfile

@@ -5,6 +5,6 @@ RUN apk add --no-cache supervisor \
 
 COPY supervisord.conf /
 
-ENV NEXTCLOUD_UPDATE=1
+ENV NEXTCLOUD_DOCKER_MODE=php-fpm
 
 CMD ["/usr/bin/supervisord", "-c", "/supervisord.conf"]

.examples/dockerfiles/cron/fpm/Dockerfile

@@ -7,6 +7,6 @@ RUN apt-get update && apt-get install -y \
 
 COPY supervisord.conf /
 
-ENV NEXTCLOUD_UPDATE=1
+ENV NEXTCLOUD_DOCKER_MODE=php-fpm
 
 CMD ["/usr/bin/supervisord", "-c", "/supervisord.conf"]

.examples/dockerfiles/full/apache/Dockerfile

@@ -55,6 +55,6 @@ RUN mkdir -p \
 
 COPY supervisord.conf /
 
-ENV NEXTCLOUD_UPDATE=1
+ENV NEXTCLOUD_DOCKER_MODE=apache
 
 CMD ["/usr/bin/supervisord", "-c", "/supervisord.conf"]

.examples/dockerfiles/full/fpm-alpine/Dockerfile

@@ -46,6 +46,6 @@ RUN mkdir -p \
 
 COPY supervisord.conf /
 
-ENV NEXTCLOUD_UPDATE=1
+ENV NEXTCLOUD_DOCKER_MODE=php-fpm
 
 CMD ["/usr/bin/supervisord", "-c", "/supervisord.conf"]

.examples/dockerfiles/full/fpm/Dockerfile

@@ -55,6 +55,6 @@ RUN mkdir -p \
 
 COPY supervisord.conf /
 
-ENV NEXTCLOUD_UPDATE=1
+ENV NEXTCLOUD_DOCKER_MODE=php-fpm
 
 CMD ["/usr/bin/supervisord", "-c", "/supervisord.conf"]