Added Dockerfile and jenkins pipeline

Dockerfile

@@ -0,0 +1,15 @@
+# Base image
+FROM composer:2.6.4 AS base
+
+COPY . /src
+WORKDIR /src
+RUN composer install --no-dev --optimize-autoloader
+
+FROM wordpress:6.1.1-php8.2 AS livecarta_wp
+ARG ENV_NAME
+COPY --from=base /src/htdocs /var/www/html
+COPY --from=base /src/environments/docker_container/ /var/www/html/
+COPY --from=base /src/environments/all/ /var/www/html/
+COPY --from=base /src/environments/${ENV_NAME}/robots.txt /var/www/html/robots.txt
+
+RUN chown -R www-data:www-data /var/www/html/