feat: add project_root setting

Allow for overriding the project root from `/app` to something else,
such as `/var/www/html`.

The default is set within a new `build.defaults.yaml` file which the
project specific file is merged into.

Fixes #27

resources/build.defaults.yaml

@@ -0,0 +1 @@
+project_root: /app

src/Console/Command/BuildConfigurationCommand.php

@@ -55,7 +55,10 @@ final class BuildConfigurationCommand extends Command
 
         $io = new SymfonyStyle($input, $output);
 
-        $configurationData = Yaml::parseFile($configFile);
+        $configurationData = array_merge(
+            Yaml::parseFile(__DIR__.'/../../../resources/build.defaults.yaml'),
+            Yaml::parseFile($configFile),
+        );
 
         $violations = $this->configurationValidator->validate($configurationData);
 

src/Validator/ConfigurationValidator.php

@@ -37,6 +37,11 @@ final class ConfigurationValidator implements ValidatorInterface
                         new Assert\Choice(['drupal-project', 'php-library']),
                     ],
 
+                    'project_root' => [
+                        new Assert\NotNull(),
+                        new Assert\Type('string'),
+                    ],
+
                     'database' => new Assert\Optional(),
 
                     'drupal' => new Assert\Optional(),

templates/Dockerfile.twig

@@ -8,14 +8,14 @@ RUN which composer && composer -V
 ARG DOCKER_UID=1000
 ENV DOCKER_UID="${DOCKER_UID}"
 
-WORKDIR /app
+WORKDIR {{ project_root }}
 
 RUN adduser --disabled-password --uid "${DOCKER_UID}" app \
-  && chown app:app -R /app
+  && chown app:app -R {{ project_root }}
 
 USER app
 
-ENV PATH="${PATH}:/app/bin:/app/vendor/bin"
+ENV PATH="${PATH}:{{ project_root }}/bin:{{ project_root }}/vendor/bin"
 
 COPY --chown=app:app composer.* ./
 
@@ -78,7 +78,7 @@ RUN {% for command in dockerfile.stages.test.commands -%}
 
 FROM caddy:2 as web
 
-WORKDIR /app
+WORKDIR {{ project_root }}
 
 COPY tools/docker/images/web/root /
 {% endif %}
@@ -90,7 +90,7 @@ FROM nginx:1 as web
 
 EXPOSE 8080
 
-WORKDIR /app
+WORKDIR {{ project_root }}
 
 COPY tools/docker/images/web/root /
 {% endif %}

templates/docker-compose.yaml.twig

@@ -2,7 +2,7 @@
 
 x-app: &default-app
   volumes:
-    - "${DOCKER_WEB_VOLUME:-./{{ drupal.docroot }}:/app/{{ drupal.docroot }}}"
+    - "${DOCKER_WEB_VOLUME:-./{{ drupal.docroot }}:{{ project_root }}/{{ drupal.docroot }}}"
   env_file:
     - .env
   restart: "${DOCKER_RESTART_POLICY:-unless-stopped}"

templates/env.example.twig

@@ -6,7 +6,7 @@ export DOCKER_UID=1000
 export COMPOSE_PROJECT_NAME={{ name }}
 export COMPOSE_PROFILES=web,php,database
 
-export DOCKER_WEB_VOLUME=.:/app
+export DOCKER_WEB_VOLUME=.:{{ project_root }}
 {% endif %}
 
 {% if "drupal-project" == type %}

templates/web/caddy/Caddyfile.twig

@@ -1,6 +1,6 @@
 # {{ managedText | raw }}
 
 :80
-root * /app/{{ drupal.docroot }}
+root * {{ project_root }}/{{ drupal.docroot }}
 file_server
 php_fastcgi php:9000

templates/web/nginx/default.conf.twig

@@ -3,7 +3,7 @@
 server {
   server_name _;
 
-  root /app/{{ drupal.docroot }};
+  root {{ project_root }}/{{ drupal.docroot }};
 
   location / {
     try_files $uri /index.php?$query_string;