I have a Rails 5 application I am running in development mode (RAILS_ENV=development). The Rails server was started with bundle exec rails s -b 0.0.0.0 -p 3002. Computers on the same network (subnet) as me can access my Rails application by IP in a browser, e.g. http://10.123.10.5:3002/. However, links to assets such as images are broken.
If I inspect the image in a browser, the tag will reference localhost as the host part of the IP such as <img src="http://localhost:3001/assets/logo-70eb2453cbce2a1790196aeb4ff1db9cddd3789b951bed9a6815505a490318a6.png">.
If I change the src to use the correct subnet IP, it works as expected. E.g. <img src="http://10.123.10.5:3002/assets/logo-70eb2453cbce2a1790196aeb4ff1db9cddd3789b951bed9a6815505a490318a6.png">
Note, also, that even the port seems to be incorrect, not adhering to the port specified in the rails s command
How do I remedy this situation?
You need to configure the config.asset_host in you rails application with your IP address
Related
i've got some problems with my ruby on rails server.
It is running under localhost:3333 in my debian vm under a windows8 host.
I've installed apache2 and passengermodul for apache to get ruby. And then I've installed rails.
Now I need a subdomain wich calls the ruby on rails server.
for example admin.localhost:3333
Is something like that possible? And when how can I configurate it?
You can use the lvh.me domain. That domain has a DNS entry that will redirect to localhost. This also works for subdomains, so you can visit admin.lvh.me:3000 and it will redirect to localhost:3000 while still having the subdomain available in the Rails request.
The advantage is that you don't have to edit your localhost file.
Add custom hosts with subdomains to the hosts file, follow these steps
In your terminal, open hosts file
cd /etc
sudo nano hosts
Add the host as mentioned in the following lines to the hosts file, you can add as many as you want
127.0.0.1 admin.localhost
127.0.0.1 subdomain.localhost
Save the file, CTRL + X then press Y
Done.
To run with a custom port, specify the port number while starting the server,
rails s -p 3333
Now you can run your application with, admin.localhost:3333
Hope this helps!
I want to know what is this: localhost:8000, found in Codecademy tutorials for AngularJS and Ruby on Rails. I even installed Apache 2, but to work with it I need to dial: http://localhost/. While working on some html files, I often come across Firefox's Inspect Element where a section is to mention localhost and its number like this: localhost:8000. I want to know what's this and can I use it to access my host from my android device or some other PC as we do access Codecademy's localhost to learn AngularJS and Ruby on Rails. Pls help. Thanks in advance. :-)
Localhost is the loopback-address of your pc. The IP-address behind it is 127.0.0.1. With localhost, it is possible to simulate a web-server environment and it is mostly used to simulate running web-applications as if they are running on a webserver. :8000 stands for the port-number on which the browser connects to the server. This is because the application runs (in this case) on port 8000 of the server. So it is not enough to just install Apache 2 and surf to http://localhost/ you have to configure Apache so that it runs your web-application on the desired port. The port-number itself has no special meaning. The different ports are just a part of the url so the browser knows on which port it has to connect. Some protocols use default ports. (e.g. HTTP will always connect to port 80, unless your specify another port in your webbrowser)
I'm sure a lot of people can explain it much better, but here is a begin.
More info about running ruby on rails on an Apache webserver:
How can i run a ruby on rails project on apache server?
How to setup Ruby on Rails Hosting using Apache, from Development to Production
EDIT: Technically, the whole 127.0.0.0/8 address block is reserved for loopback purposes. The default one, configurged in hosts.txt is 127.0.0.1 and the most famous.
I am planning to have a web application.
To do so, I studied about ruby and ruby on rails. I am using linux server from amazon clouding system.
I bought a domain from godday, and I put the IP address on DNS setting. When I run 'rails s' command, I can connect to the wep page through port 3000 in such a way that domain.com:3000. However, I cannot directly connect to domain.com. How can I my domain works without port 3000?
And Do I have to run 'rails s' every time to make the wep page work? Actually I tried to use 'rails s &' to make it run in background. But it fails. How can I make the server run even though I am not connected to the linux server?
Thank you!
usually you use rails s just in development. there are quite a few ruby web servers you can choose from for your production environment: puma, passenger or unicorn to name a few.
of course all of them have their own tutorials how to set them up. for starters, i'd go with with passenger because it's integrated with nginx and apache and easily set up.
You need to specify a port, if you don't see the port it can be either 80 (http) or 443 (https).
rails server -p 80
On linux you have to be root to bind to port less than 1000, so just append sudo in front.
I have a working rails app accessible directly from http://0.0.0.0:3000/ . The app is also in staging and production in heroku.
Today, I want to start working on a new rails app in the same computer. How can I start working on the new unrelated app under a different path without messing up my staging/production urls ?
How can I have something like this locally and switch between the two apps
http://0.0.0.0:3000/existingApp/
http://0.0.0.0:3000/newapp/
I tried scope "/existingApp" do in my routes.rb for / and I suppose I should do that for the new app as well... but how do I specify this only for my local environment? I would like my heroku urls to stay unchanged (ie stay at the root).
I wouldn't recommend doing what you're doing, but if you're gonna do it anyway, you could try writing an engine and mounting it.
This could help get you started.
Almost any server would be able to be configured to listen to a port other than 3000. Thin, for example, can be started as:
thin -R config.ru -a 127.0.0.1 -p 8080 start
And would then listen on port 8080. Rails server can be started similarly using:
rails server -e production -p 4000
You may want to also consider starting your database using a port different than the standard one, but that is probably not necessary.
I installed rails on an instance on amazon AMI. I installed all the dependencies for rails. I even copied the code through scp. When i ssh to the instance i ran
rails s
The server is running. How can I view it from the browser?
from the Public DNS???
In summary, sure that your security group have a rule for TCP 3000.Then, you can use the Public DNS:
rails server -b ec2-XX-XX-XX-XX.us-west-2.compute.amazonaws.com -p 3000
And access to: ec2-XX-XX-XX-XX.us-west-2.compute.amazonaws.com:3000
This works for me.
Your amazon ec2 instance has a public ip address and domain name, see
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-instance-addressing.html
use this domain name as the URL in your browser.
You will also have to set inbound traffic / port connections in the security group of the instance.
A word of warning: with "rails s" you are starting webrick, a server that is only meant to be used in development. You probably should use a production server like apache + mod_passenger.
For more advanced usage of ec2 and ruby on rails see
http://railscasts.com/episodes/347-rubber-and-amazon-ec2?view=asciicast
move to folder from rails aplication and typerails s -b 0.0.0.0