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Allow App Runner services to talk to AWS resources in a private Amazon VPC #1

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akshayram-wolverine opened this issue May 16, 2021 · 66 comments
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@akshayram-wolverine
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Customers can run services on App Runner and talk to other AWS services via a public endpoint. For instances, they can talk to Amazon DynamoDB, Aurora DB with public access. But customers may also want App Runner services to access resources such as RDS instances in a private VPC.

@akshayram-wolverine akshayram-wolverine added this to Researching in Roadmap May 16, 2021
@akshayram-wolverine akshayram-wolverine changed the title Allow App Runner Services to talk to AWS resources in a private Amazon VPC Allow App Runner services to talk to AWS resources in a private Amazon VPC May 16, 2021
@adilnaimi
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just waiting for this to happen, and we will migrate all our ECS workers to App runner

@boadude
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boadude commented May 20, 2021

Same here, I had a lot of Fargate services, but I need to connect to RDS.

Need this before migrating to App Runner.

@raghibfaisal
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raghibfaisal commented May 26, 2021

Was also wondering if there would be a way to reference the app running in App Runner somehow in another security group. For instance, if we have a database running on an EC2 server and want to allow just the app (app runner container) to access the EC2-database. The container in App-Runner does not have a security group in front of it unlike Fargate. Otherwise, we could have referenced the containers security group in the EC2-databases security group.

@greenreign
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I know it's been only a month since GA but is there any idea on timing for the next release which hopefully contains this issue? We can't wait to get off of K8s/EKS and are looking at ECS Fargate but would love to jump straight into AppRunner. But we need to connect to RDS so I'd really like to understand the potential timing on this.

@shorn
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shorn commented Jun 27, 2021

But we need to connect to RDS ...

This is also my use-case and it's not the first time I've ruled out new AWS tech because it can't interact with RDS or other resources running in my private VPC.

It was literally the first thing I looked at when AppRunner was announced - and this issue absolutely should be in the FAQ. It seems like a general problem that AWS product releases of new tech often come out without the ability to talk to private VPC resources.

OTOH, it's totally understandable. The team is trying to release cool new tech and so they reduce the scope to a Minimal Viable Product. It's an unfortunate reality that the MVP approach often makes new AWS technologies unusable for many folks (and not just because of the private VPC resource issue either).

I wonder if it's not time for AWS to come up with a general way for customers to safely connect to private resources - some kind of "reverse VPC endpoint". Though just writing out the idea of making my RDS accessible this way is giving me the security-heebie-jeebies.

@1oglop1
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1oglop1 commented Jun 30, 2021

@shorn
Is it not possible?
I was in impression that I just create VPC and security group endpoint for Apprunner and RDS

rds-ep -> rds-ep-sg
apprunner-ep -> apprunner-sg

Rules:
rds-ep-sg ACCEPT TCP:5432 (postgres) from apprunner-sg
Is this not how it should work, if not please correct me I'm bit lost in Networking here

@alexpaluzzi
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@shorn
Is it not possible?
I was in impression that I just create VPC and security group endpoint for Apprunner and RDS

rds-ep -> rds-ep-sg
apprunner-ep -> apprunner-sg

Rules:
rds-ep-sg ACCEPT TCP:5432 (postgres) from apprunner-sg
Is this not how it should work, if not please correct me I'm bit lost in Networking here

How would you connect the specific App Runner service with this security group or endpoint? That's a missing piece here.

@Simbul
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Simbul commented Jul 15, 2021

I found this thread as I also tried adding a DB and was incredibly surprised to realise it wasn't possible.

A bit more research led me to AWS Copilot, which is a slightly more advanced toolkit for containerised apps. Copilot's Load Balanced Web Service option was what I needed in the end (i.e. running a containerised app with access to a DB).

Also worth noting that Copilot's Request-driven Web Service uses App Runner under the hood.

@1oglop1
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1oglop1 commented Jul 16, 2021

@Simbul Yeah I did not use Copilot because it's cloudformation and ECS, I can build the same thing myself using terraform/pulumi and have more control.
I was surprised that Copilot created ECS cluster even then when I created Request driven service which does not need it.

@akshayram-wolverine akshayram-wolverine moved this from Researching to We are working on it in Roadmap Jul 20, 2021
@dyaacov
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dyaacov commented Aug 15, 2021

I spent 3 days trying to connect DocumentDB and ElasticCache to my new App Runner... :(

@alexpaluzzi
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I spent 3 days trying to connect DocumentDB and ElasticCache to my new App Runner... :(

How did you connect elasticache with app runner? I can't stablish connection, I'm getting timeout :(

You can't. That's what this issue is about. They're working on it.

@dyaacov
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dyaacov commented Aug 24, 2021 via email

@akshayram-wolverine
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akshayram-wolverine commented Sep 8, 2021

Thank you for all the feedback. We are working on VPC support for App Runner and will have more updates on this thread going forward.

In the meantime as suggested by the community on this thread you can use ECS/Fargate that has access to resources in your VPC by default. You can optionally use Copilot with ECS/Fargate to help simplify the provisioning steps. Copilot also works with App Runner so you can seamlessly migrate to App Runner once VPC support is enabled. For a database choice with App Runner today, you can use DynamoDB if it meets your use case.

To help us better learn about your use case please give us feedback if possible by selecting from the options below that is most consistent with your setup:

I plan to use App Runner for

  1. New greenfield applications
  2. Migrate existing applications from EC2, ECS, Other (tell us)
  3. Both (1) & (2)

I need VPC support to:

  1. Connect App Runner services to databases or caches eg. RDS, Elasticache, DocumentDB that default to a VPC.
  2. Connect App Runner services to another EKS or ECS service behind a load balancer or a service running on EC2 behind an Load balancer in a VPC
  3. Other (Please tell us)

Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance

  1. Often
  2. Sometimes
  3. Rarely

Do you use VPC Flow logs today:

  1. Yes, I use VPC flow logs
  2. No, I don't use VPC flow logs

@alexanderwink
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  • I plan to use App Runner for 1 & 2 (migrating from EC2)
  • I need VPC support to 1. Connect App Runner services to RDS databases
  • More than one App Runner service talking to the same database/cache 2. sometimes
  • Do you use VPC Flow logs today 2. No, I don't use VPC flow logs

@mheers
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mheers commented Sep 8, 2021

  • I plan to use App Runner for: New greenfield applications
  • I need VPC support to: Connect App Runner services to databases or caches eg. RDS, Elasticache, DocumentDB that default to a VPC
  • Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance: sometimes
  • Do you use VPC Flow logs today: No, I don't use VPC flow logs

@anthonybouton
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anthonybouton commented Sep 8, 2021

  • I plan to use App Runner for: Migrate existing applications from EC2, ECS
  • I need VPC support to: Connect App Runner services to RDS
  • Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance: yes
  • Do you use VPC Flow logs today 2. No, I don't use VPC flow logs

@cou929
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cou929 commented Sep 8, 2021

  • New greenfield applications
  • Connect App Runner services to databases or caches eg. RDS, Elasticache, DocumentDB that default to a VPC.
  • Sometimes
  • No, I don't use VPC flow logs

@toricls toricls pinned this issue Sep 8, 2021
@bram-abe
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bram-abe commented Sep 8, 2021 via email

@himorishige
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  • I plan to use App Runner for: New greenfield applications
  • I need VPC support to: Connect App Runner services to databases or caches eg. RDS, Elasticache, DocumentDB that default to a VPC
  • Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance: sometimes
  • Do you use VPC Flow logs today: No, I don't use VPC flow logs

@yyoda
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yyoda commented Sep 8, 2021

  • I plan to use App Runner for: Both
  • I need VPC support to: Connect App Runner services to databases or caches eg. RDS, Elasticache, DocumentDB that default to a VPC
  • Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance: Rarely
  • Do you use VPC Flow logs today: No, I don't use VPC flow logs

@masteinhauser
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  • I plan to use App Runner for: Both
  • I need VPC support to: Connect App Runner services to databases or caches eg. RDS, Elasticache, DocumentDB that default to a VPC
  • Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance: Rarely
  • Do you use VPC Flow logs today: Yes, I use VPC flow logs

@umm0n
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umm0n commented Sep 8, 2021

  • I plan to use App Runner for: Migrate existing apps from Beanstalk
  • I need VPC support to: Connect App Runner services to databases or caches eg. RDS, Elasticache, DocumentDB that default to a VPC
  • Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance: Yes, often
  • Do you use VPC Flow logs today: No

@greenreign
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  • I plan to use App Runner for
    Migrate existing applications from EKS, K8S

  • I need VPC support to:
    Connect App Runner services to databases or caches eg. RDS, Elasticache, DocumentDB that default to a VPC.

  • Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance
    Often

  • No, I don't use VPC flow logs

@amgci
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amgci commented Nov 11, 2021

Yes, this and PHP support are the 2 things holding us back from using App Runner.

@clarksm
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clarksm commented Nov 12, 2021

I plan to use App Runner for
Both (1) & (2)

I need VPC support to:
Connect App Runner services to databases or caches eg. RDS, Elasticache, DocumentDB that default to a VPC.
Connect App Runner services to another EKS or ECS service behind a load balancer or a service running on EC2 behind an Load balancer in a VPC

Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance
Sometimes

Do you use VPC Flow logs today:
Yes, I use VPC flow logs

@akospinter
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App Runner is a great product, but I think the VPC / SecurityGroup support is an essential feature.

Do you have any estimation when this feature will be released?

@akshayram-wolverine akshayram-wolverine moved this from We are working on it to Coming soon in Roadmap Nov 19, 2021
@akshayram-wolverine
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Thanks so much for all the feedback!! Really appreciate the time and effort. The feedback has been really helpful to make sure we are building the feature in a way that aligns with customer's expectations. We are heads down working on this and I have moved this to the coming soon section of the roadmap.

@CarlosDomingues
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I plan to use App Runner for
Both (1) & (2)

I need VPC support to:
Connect App Runner services to databases or caches eg. RDS, Elasticache, DocumentDB that default to a VPC.
Connect App Runner services to another EKS or ECS service behind a load balancer or a service running on EC2 behind an Load balancer in a VPC
Block access from external / non-approved hosts.

Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance
No

Do you use VPC Flow logs today:
Yes, I use VPC flow logs

@abhijitajmera
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Meanwhile is there any workaround for App Runner communication to Aurora and ElastiCache?

@DilwoarH
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Thanks so much for all the feedback!! Really appreciate the time and effort. The feedback has been really helpful to make sure we are building the feature in a way that aligns with customer's expectations. We are heads down working on this and I have moved this to the coming soon section of the roadmap.

Do you have an estimated time when this will be made available?

@brown99
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brown99 commented Dec 31, 2021

I plan to use App Runner for
Both (1) & (2)

I need VPC support to:

  • Connect App Runner services to RDS

Do you foresee more than one App Runner service talking to the same database/cache by sharing the subnet and security group eg. Three App Runner services talking to the same RDS instance
Yes

Do you use VPC Flow logs today:
No

@adonig
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adonig commented Jan 16, 2022

This issue prevents me from converting my Elastic Beanstalk and Elastic Container Service apps to App Runner.

@mwarkentin
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Looks like it should be coming soon, there was a AppRunnerNetworkingServicePolicy that showed up the other day and has VPC permissions, etc.

@khalidjaz
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Has there been any updates on this?

@mwarkentin
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@khalidjaz just saw this! https://github.com/aws/copilot-cli/releases/tag/v1.15.0

@jvisker
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jvisker commented Feb 8, 2022

I don't see an announcement, but I do see the feature in the console.

@pfeilbr
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pfeilbr commented Feb 8, 2022

Announcement at https://aws.amazon.com/blogs/aws/new-for-app-runner-vpc-support/

@1tonyca
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1tonyca commented Feb 11, 2022

https://docs.aws.amazon.com/apprunner/latest/relnotes/release-2022-02-08-vpc.html

@1tonyca 1tonyca closed this as completed Feb 11, 2022
Roadmap automation moved this from Coming soon to Just Shipped Feb 11, 2022
@vanpeltj
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Does anyone know when this feature will be integrated in the aws terraform module?

@fitzoh
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fitzoh commented Feb 14, 2022

Does anyone know when this feature will be integrated in the aws terraform module?

Looks like this is the tracking issue you want: hashicorp/terraform-provider-aws#23090

https://github.com/hashicorp/terraform-provider-aws/search?q=apprunner+vpc&type=issues

@mwarkentin
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mwarkentin commented Mar 4, 2022

Looks like it was just released in the 4.4.0 terraform provider!

@dyaacov
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dyaacov commented Mar 6, 2022 via email

@snnles snnles unpinned this issue Mar 17, 2022
@jzaplet
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jzaplet commented Apr 4, 2022

Hi, I have a simple PHP application deployed via ECR to the App Runner. I successfully connected the App Runner through VPC to a private RDS. However, when I make a request (PHP-CURL) from my application to any public endpoint (outside of AWS), my application crashes on timeouts. My questions is: Where should I allow the App Runner to send requests outside of AWS and still be connected to a private RDS? What settings do I need to make?

// EDIT: Solved by NAT Gateway in VPC

@justiceamoh
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@jzaplet, I'm having the same issues. Can you share how you resolved this using the NAT Gateway in VPC? If you can point me to a resource, that'd be super helpful. Thanks in advance!

@MPTG94
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MPTG94 commented Jun 12, 2022

Hey @justiceamoh, I also needed to enable this functionality, please refer to this resource for NAT gateways and also this example from AWS will show you the general process step by step.

One important note you might miss because it is not emphasized enough in the examples - the NAT gateway should be part of a PUBLIC subnet that is routed to an internet gateway (if you need the App Runner instance to connect to resources in the internet and outside your VPC).
Other than that, the guide should walk you through things in a pretty straightforward manner

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