feat: allow to install the website skeleton (#152)

* feat: allow to install the website skeleton

* wip

* wip

* cleanup

* revert rename in docs

* cleanup

Dockerfile

@@ -18,7 +18,6 @@ RUN apk add --no-cache \
 		gettext \
 		git \
 		gnu-libiconv \
-		jq \
 	;
 
 # install gnu-libiconv and set LD_PRELOAD env to make iconv work fully on Alpine image.
@@ -82,12 +81,17 @@ ENV PATH="${PATH}:/root/.composer/vendor/bin"
 
 WORKDIR /srv/app
 
+# Allow to choose skeleton
+ARG SKELETON="symfony/skeleton"
+ENV SKELETON ${SKELETON}
+
 # Allow to use development versions of Symfony
 ARG STABILITY="stable"
-ENV STABILITY ${STABILITY:-stable}
+ENV STABILITY ${STABILITY}
 
 # Allow to select skeleton version
 ARG SYMFONY_VERSION=""
+ENV SYMFONY_VERSION ${SYMFONY_VERSION}
 
 # Download the Symfony skeleton and leverage Docker cache layers
 RUN composer create-project "symfony/skeleton ${SYMFONY_VERSION}" . --stability=$STABILITY --prefer-dist --no-dev --no-progress --no-interaction; \