Mounting On-prem NFS share to an EC2 instance

Question

Hi, Need urgent help please. If someone can please respond and guide asap

Here is my scenario  -

I have an App server hosted on a private AWS EC2 (can't be exposed to public network). This is a lift and shift of the customer's on-prem app server. So far so good.

Before migrating to AWS, customer's on-prem App server had 2 types of NFS mounts where the files were dropped for the App server to access

1. NFS mounts from customer's  on-prem corporate network (A). There is a 200mbps direct connect from the customer's on-prem corporate network to AWS.
2. NFS mounts from remote servers located in a partner data centre (B). There is no direct connectivity from this partner data centre to AWS. However, there is a private connectivity between this partner data centre to the customer's corporate network (A)

Now post the migration, how can I ensure these 2 types of NFS shares can be mounted/accessed on to the new EC2 instance as well?

Please help asap

Thanks
Rohit

Answer

Short answer: Yes, this works.

Longer: If Site B can communicate with Site A; and site A can communicate with the AWS VPC; then generally Site B will be able to communicate with the VPC.

This does depend on whether Site A (the routers/switches/firewalls) allow communication from Site B to AWS so that would be the thing to check. If possible, avoid overlapping IP addresses; and ensure that firewalls allow two-way communications.

Mounting On-prem NFS share to an EC2 instance

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