Chore: Sidekiq ActionCable fix for Development (#405)

- action cable works from sidekiq in development environments
- documentation updates for docker

docs/development/environment-setup/docker.md

@@ -7,6 +7,12 @@ title: "Docker Setup and Debugging Guide"
 
 After cloning the repo and installing docker on your machine, run the following command from the root directory of the project.
 
+```bash
+cp .env.example .env
+```
+
+Make changes to the `.env` file as required. [Optional]
+
 ```bash
 docker-compose build
 ```
@@ -14,19 +20,19 @@ docker-compose build
 After building the image or after destroying the stack you would have to reset the database using following command
 
 ```bash
-docker-compose run rails bundle exec rails db:reset
+docker-compose run --rm rails bundle exec rails db:reset
 ```
 
 ### Running the app
 
 ```bash
-docker-compose run --service-port rails
+docker-compose run --rm --service-port rails
 ```
 
 open another terminal and also run below command to run sidekiq in a separate service
 
 ```
-docker-compose run rails bundle exec sidekiq
+docker-compose run --rm rails bundle exec sidekiq
 ```
 
 * Access the rails app frontend by visiting `http://0.0.0.0:3000/`
@@ -50,13 +56,13 @@ docker-compose down
 For running the complete rspec tests
 
 ```bash
-docker-compose run rails bundle exec rspec
+docker-compose run --rm rails bundle exec rspec
 ```
 
 For running specific test:
 
 ```bash
-docker-compose run rails bundle exec rspec spec/<path-to-file>:<line-number>
+docker-compose run --rm rails bundle exec rspec spec/<path-to-file>:<line-number>
 ```
 
 ## production environment