docs (readme): update to reflect bundle version 3 and symfony 4

Author: Phobetor

README.md

@@ -18,7 +18,7 @@ When your worker configuration or your code changes, run the command again and a
 
 Install [supervisor](http://supervisord.org/). e. g. on debian based distributions via `apt-get`:
 ```sh
-$ apt-get install supervisor
+# apt-get install supervisor
 ```
 
 Add bundle via composer
@@ -27,9 +27,8 @@ $ php composer require phobetor/rabbitmq-supervisor-bundle
 ```
 This will install the bundle to your project’s `vendor` directory.
 
-Add the bundle to your project’s `AppKernel`:
+If your are not using Symfony Flex, also add the bundle to your project’s `AppKernel`:
 ```php
-<?php
 // app/AppKernel.php
 
 public function registerBundles()
@@ -46,7 +45,7 @@ public function registerBundles()
 RabbitMQ supervisor bundle works out of the box with a predefined configuration. If you leave it this way you will end
 up with this directory structure:
 ```sh
-app/supervisor/
+supervisor/
 └── dev
     ├── logs
     │   ├── stderr.log
@@ -61,61 +60,49 @@ app/supervisor/
         ├── queue3.conf
         └── queue4.conf
 ```
+In symfony 2 and 3 this will be placed inside your `app/` directory.
 
-## Advanced configuration
-
-You can use the following configuration options in your `app/config/config.yml`:
+Caution with symfony 4: to not have this inside of your `src/` directory you need to set the paths to suit your needs.
+E. g. to use the standard structure inside of the `var/` directory, use this:
 ```yml
 rabbit_mq_supervisor:
-    supervisor_instance_identifier:     instance_name
     paths:
-        workspace_directory:            /path/to/workspace/
-        configuration_file:             /path/to/workspace/supervisord.conf
-        pid_file:                       /path/to/workspace/supervisord.pid
-        sock_file:                      /path/to/workspace/supervisord.sock
-        log_file:                       /path/to/workspace/supervisord.log
-        worker_configuration_directory: /path/to/workspace/worker/
-        worker_output_log_file:         /path/to/workspace/logs/%kernel.environment%.log
-        worker_error_log_file:          /path/to/workspace/logs/%kernel.environment%.log
-    commands:
-        rabbitmq_consumer:              user-specific-command:consumer
-        rabbitmq_multiple_consumer:     user-specific-command:multiple-consumer
-    consumer:
-        general:
-            messages:                   250     # consumer command option: messages to consume
-            memory-limit:               32      # consumer command option: allowed memory for this process
-            debug:                      true    # consumer command option: enable debugging
-            without-signals:            true    # consumer command option: disable catching of system signals
-            worker:
-                count:                  1       # number of workers per consumer
-                startsecs:              2       # supervisord worker option: seconds to consider program running
-                autorestart:            true    # supervisord worker option: if supervisord should restarted program automatically
-                stopsignal:             INT     # supervisord worker option: the signal used to kill the program
-                stopasgroup:            true    # supervisord worker option: if whole process group should be stopped
-                stopwaitsecs:           60      # supervisord worker option: seconds to wait after stop signal before sending kill signal
-        individual:
-            # override options for specific consumers. you can use the same options for any consumer as in consumer.general
-            consumer_name_1:
-                # […]
-            consumer_name_2:
-                # […]
+        workspace_directory:            "%kernel.project_dir%/var/supervisor/%kernel.environment%/"
+        configuration_file:             "%kernel.project_dir%/var/supervisor/%kernel.environment%/supervisord.conf"
+        pid_file:                       "%kernel.project_dir%/var/supervisor/%kernel.environment%/supervisor.pid"
+        sock_file:                      "%kernel.project_dir%/var/supervisor/%kernel.environment%/supervisor.sock"
+        log_file:                       "%kernel.project_dir%/var/supervisor/%kernel.environment%/supervisord.log"
+        worker_configuration_directory: "%kernel.project_dir%/var/supervisor/%kernel.environment%/worker/"
+        worker_output_log_file:         "%kernel.project_dir%/var/supervisor/%kernel.environment%/logs/stdout.log"
+        worker_error_log_file:          "%kernel.project_dir%/var/supervisor/%kernel.environment%/logs/stderr.log"
+```
+
+## Advanced configuration
+
+To see all configuration options run
+```sh
+$ console config:dump-reference RabbitMqSupervisorBundle
 ```
 
 ### BC break when updating from v1.* to v2.*
 If you used custom commands before version 2.0, you need to update them. In most case you can just remove everything
 after the command name.
 
+### BC break when updating from v2.* to v3.*
+Commands will by default no longer wait for `supervisord` to complete. If you need this (e. g. to get feedback on
+errors) use the `--wait-for-supervisord` option.
+
 ## Usage
 
 Build or rebuild the supervisor and worker configuration and start the daemon:
 ```sh
-$ app/console rabbitmq-supervisor:rebuild
+$ console rabbitmq-supervisor:rebuild
 ```
 
 Control the supervisord daemon:
 ```sh
-$ app/console rabbitmq-supervisor:control stop
-$ app/console rabbitmq-supervisor:control start
-$ app/console rabbitmq-supervisor:control restart
-$ app/console rabbitmq-supervisor:control hup
+$ console rabbitmq-supervisor:control stop
+$ console rabbitmq-supervisor:control start
+$ console rabbitmq-supervisor:control restart
+$ console rabbitmq-supervisor:control hup
 ```