add: improved workflow for caprover

docker/wordpress/Dockerfile

@@ -1,8 +1,28 @@
 ARG WP_VERSION=6
 ARG PHP_VERSION=8.3
 
+# set wordpress and PHP versions
 FROM wordpress:${WP_VERSION}-php${PHP_VERSION}-fpm-alpine
 
+# clean core from default themes and plugins
+RUN rm -rf /usr/src/wordpress/wp-content/themes/* && rm -rf /usr/src/wordpress/wp-content/plugins/*
+COPY app/* /usr/src/wordpress
+
+# install system dependencies
+RUN apk add --no-cache msmtp mysql-client;
+RUN curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar && \
+    chmod +x wp-cli.phar && \
+    mv wp-cli.phar /usr/local/bin/wp
+
+# install composer dependencies
+COPY composer.json composer.lock ./
+RUN --mount=type=secret,id=GITEA_TOKEN \
+    export TOKEN=$(cat /run/secrets/GITEA_TOKEN) && \
+    composer config --global auth.http-basic.seu-gitea.com token $TOKEN && \
+    composer install --no-dev --optimize-autoloader
+
+# modify docker entrypoint for running any .sh scripts found under /usr/local/bin/docker-entrypoint.d
+# scripts will run as www-data if endedd with .unpriv.sh or as root elsewhere
 RUN cp -avf /usr/local/bin/docker-entrypoint.sh /usr/local/bin/docker-entrypoint.original && \
     sed -i '/^[[:space:]]*exec "$@"[[:space:]]*/d' /usr/local/bin/docker-entrypoint.sh && \
     cat << EOF >> /usr/local/bin/docker-entrypoint.sh
@@ -20,11 +40,6 @@ fi
 
 exec "\$@";
 EOF
+COPY docker/wordpress/scripts/docker-entrypoint.d/* /docker-entrypoint.d/
 
-RUN curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar && \
-    chmod +x wp-cli.phar && \
-    mv wp-cli.phar /usr/local/bin/wp
-
-# Copy sub scripts and allows execution
-COPY ./scripts/docker-entrypoint.d/* /docker-entrypoint.d/
 RUN chmod +x /docker-entrypoint.d/*.sh