add plugins as an external git repo

finally (to squash)

Dockerfile

@@ -63,11 +63,18 @@ WORKDIR /var/www
 RUN curl -o grav-admin.zip -SL https://getgrav.org/download/core/grav-admin/${GRAV_VERSION} && \
     unzip grav-admin.zip && \
     mv -T /var/www/grav-admin /var/www/html && \
-    rm grav-admin.zip
+    rm grav-admin.zip && \
+    rm -rf /var/www/html/user/plugins
 
 # Create cron job for Grav maintenance scripts
 RUN (crontab -l; echo "* * * * * cd /var/www/html;/usr/local/bin/php bin/grav scheduler 1>> /dev/null 2>&1") | crontab -
 
+# Copy base theme
+RUN git clone --depth 1  https://github.com/getgrav/grav-theme-learn4 /var/www/html/user/themes/learn4
+
+# Copy plugins
+RUN git clone --depth 1 https://github.com/YunoHost/doc-dev /var/www/html/user/plugins
+
 # Return to root user
 USER root
 
@@ -75,7 +82,7 @@ USER root
 # COPY docker-entrypoint.sh /entrypoint.sh
 
 # provide container inside image for data persistence
-VOLUME ["/var/www/html/backup", "/var/www/html/logs", "/var/www/html/user/themes", "/var/www/html/user/pages", "/var/www/html/user/config", "/var/www/html/user/images"]
+VOLUME ["/var/www/html/backup", "/var/www/html/user/themes/yunohost-docs", "/var/www/html/logs", "/var/www/html/user/pages", "/var/www/html/user/config", "/var/www/html/user/images"]
 
 # ENTRYPOINT ["/entrypoint.sh"]
 # CMD ["apache2-foreground"]

docker-compose.yml

@@ -5,8 +5,7 @@ services:
     ports:
       - 8000:80
     volumes:
-      - ./themes:/var/www/html/user/themes
+      - ./themes/yunohost-docs:/var/www/html/user/themes/yunohost-docs
       - ./config:/var/www/html/user/config
       - ./pages:/var/www/html/user/pages
       - ./images:/var/www/html/user/images
-      - ./dev/plugins:/var/www/html/user/plugins