Devdocs: how can Set up Magento2 backend on a separate node?

[jorbope]

##how can Set up Magento2 backend on a separate node?
I want to install magento in 3 servers,

• server 1: front
• server 2: backend
• server 3: database

Anyone achieved that?

[ghost]

Created internal issue MAGETWO-60159 to track.

[idmistir]

Any updates to this?

[jorbope]

yes, here a solution

First of all, We have to install magento in Server1 and configure it as you wish.

Here my proposal

• server1: 192.168.207.128 : front : http://192.168.207.128/magetest
• server1: 192.168.207.128 : backend: https://192.168.207.128/magetest/admin/
• server3: 192.168.207.130 : database

Our goal will be to achieve this one

• server1: 192.168.207.128 : front : http://192.168.207.128/magetest
• server2: 192.168.207.129 : backend : https://192.168.207.129/magetest/admin/
• server3: 192.168.207.130 : database

Then, In server1 we have to modify the file "/var/www/magetest/app/etc/env.php"

We'll set as database server Server3

array (
    'table_prefix' => 'mg_',
    'connection' => 
    array (
        'default' => 
            array (
                'host' => '192.168.207.130,
                'dbname' => 'mage',
                'username' => 'myUser',
                'password' => 'myPassword',
                'active' => '1',
            ),
    ),
),

And set this config to save sessions in the database, you can use Redis or other options for that, but this time we'll use the database.

'session' => 
    array (
        'save' => 'db',
    ),

Now we have to duplicate magetest from server1 to server2

In server1 Set this config at backend:

"Stores->Configuration->General->Web->Url Options->Auto-redirect to Base URL" to "No"
"Stores->Configuration->Advanced->Admin->Admin Base Url->Use Custom Admin URL" to "Yes"
"Stores->Configuration->Advanced->Admin->Admin Base Url->Custom Admin URL" to "https://192.168.207.129/magetest/"

In server1 we have to install "nfs-kernel-server" to share the directory "/var/www/magetest/pub/media/" with server2:

aptitude install nfs-kernel-server nfs-common

Now modify the file "/etc/exports", to share the media directory "/var/www/magetest/pub/media/":

nano /etc/exports
/var/www/magetest/pub/media 192.168.207.129/32(rw,insecure,nohide,sync,anonuid=48,anongid=48)

service nfs-kernel-server restart

Go to server2 to install and configure nfs-client

aptitude install nfs-client nfs-common

Drop the content of /var/www/magetest/pub/media/

rm -r /var/www/magetest/pub/media/*

Mount the new directory using nfs-client

mount 192.168.207.128:/var/www/magetest/pub/media /var/www/magetest/pub/media

Important: You'll have to configure the file "/etc/fstab" to maintain the configuration as permanent

In both servers drop the content of these directories:

rm -r /var/www/magetest/var/cache/*
rm -r /var/www/magetest/var/page-cache/*
rm -r /var/www/magetest/var/generation/*

And finally, execute this command in both servers

php /var/www/magetest/bin/magento cache:clean

Now everything should be working, frontend, backend and database in separate nodes

http://192.168.207.128/magetest
https://192.168.207.129/magetest/admin/

[ghost]

@jorbope If you'll submit this to us in a PR, I will use your name as a contributor similar to this page: http://devdocs.magento.com/guides/v2.1/test/integration/integration_test_execution_phpstorm.html (Upper right corner)

I'd suggest you add a new file here: https://github.com/magento/devdocs/tree/develop/guides/v2.0/config-guide

Don't' worry too much about formatting, I'll fix that.

[jorbope]

OK

[samm-git]

Just a few comments:

1. Cache should be on Redis.
2. I would not recommend to store sessions in the DB, Redis is better

[jorbope]

Yes, you are right.

[samm-git]

Another addition - instruction on how to pass admin traffic to the admin node should be added. It could be redis, aws elb or smth else + probably separate subdomain

[ghost]

@samm-git Can you clarify/amplify? Thanks

[samm-git]

Sure. If we are adding > 1 node we should also load balance traffic between them. If we want to make admin node - we should route admin traffic (and only to it) based on subdomain or path

[VK00481136]

Hi All,

I'm facing the issue while configuring Magento backend on another server.

Example:
server1: 192.168.207.142 : front: http://192.168.207.142/magetest
server2: 192.168.207.143 : backend: https://192.168.207.143/magetest/admin/
server3: 192.168.207.144 : database

I have tried these steps mentioned in this article:
https://github.com/magento/devdocs/issues/802#issuecomment-275545778

After did the changes admin is redirected to 404 page.

Does anyone have a solution for this issue?

Thanks in advance.

Regards,
-Vimal

[george-vlahakis]

@jorbope Not working. Still getting infinite redirections from front-end to back-end. Using Redis session storage and EFS for media folder sharing.