We want to secure our cloud function ( Http ) so added ingress setting to allow internal traffic
after adding we unable to communicate from Service in GKE cluster to this cloud function
Getting 403 error
I am not able to understand because they are under same project
what are the things i need to configure to access my cloud function from microservice in GKE cluster
Can you please suggest what are the configurations needs to be taken care to secure the cloud function and successful connection between the microservice in GKE and cloud function?
Only traffic from VPC networks in the same project or the same VPC SC perimeter is allowed.
check that you cluster and could function are in the VPC by selecting the right VPC connector.
Related
I have an API launched on a cloud run service in project dev. I don't want to expose the API so I set it's ingress to Allow internal and Cloud load balancing traffic.
I have another cloud run frontend application in a different project. It's connected with a VPC connector to the project's VPC and routes all traffic through the VPC connector.
I want to access the same API service from the previous project so I basically created a VPC Peering between the two projects thinking that traffic to the other project's cloud run service will go through the Peering.
It seems not to be the case as my application is still not able to reach the other project's API cloud run service. The frontend service sends the traffic not directly to the cloud run url but it sends it through a server/api request (Using Next.JS API route here for context) so I was of the view that it will go through the VPC connector, through the Peering and find the other project's cloud run url.
Is there something I did wrong here or it's not a setup that's going to work at the moment.
GCP Serverless VPC access connectors and VPC Peering are not transitive by default.
Non transitivity in GCP networking basically means that if we have 3 networks, A,B and C. If network A is connected to B and B is connected to C, it does not mean that A is connected to C. Read more on GCP network peering transitivity here: vpc-peering-docs.
Cloud run does not live on the user or organization's VPC but lives in a separate network (owned by Google).
Hence when the network in project A is peered with the network in project B, the connection from the cloud run service becomes a third network and since peering is not transitive, the cloud run network can of course connect to resources in the same project through the serverless access vpc connector but cannot connect to the network in project B even though the two networks are peered.
If you still want to connect your cloud run services in a project to different project services privately, then consider reading this documentation: cloud run authentication. With this method, you can restrict traffic to require authentication using IAM credentials for example.
Credit to John Hanley
I have one VPC Serverless connector which helps Cloud Functions to access the default VPC and then transit to another peered VPC from another project.
The setup was working fine until yesterday.
No change happened.
Now my functions are timing out because the call to internal IPs do not return anything.
I activated the Flow logs for the VPC subnet on which the cloud functions are deployed (us-central1) and they do not show any activity at all, which points me at the Serverless VPC connector.
However it does not have any option to enable log.
I cannot try the network intelligence connectivity test since serverless infra has no IP.
I tried creating another VPC Connector with a different internal IP range, still no flow.
Any idea how I could debug this?
Is it possible to access GCP PaaS (App Engine , Cloud Function, Cloud Run) internally (throught VPC)
I see in this doc : https://cloud.google.com/vpc/docs/configure-serverless-vpc-access
"Serverless VPC Access only allows requests to be initiated by the serverless environment. Requests initiated by a VM must use the external address of your serverless service—see Private Google Access for more information."
But searching for something like "Serverless VPC Access allows in/out requests"
You have 2 ways: in and out
Request TO serverless APP
You can use ingress control with Cloud Functions and Cloud Run services. You can say: I want that only connections from my VPC (or VPC SC perimeter) access to my serverless APP. With App Engine, you have firewall rules but doesn't work with private IP.
Request FROM serverless APP
Here you want to reach private resource exposed only on your VPC with a private IP. And with Cloud Run, Cloud Functions and App Engine, you can plug a serverless VPC connector to achieve this.
EDIT 1
With your appliance firewall deployed on Google Cloud, App Engine isn't the perfect product for this. Indeed, with App Engine you can't control the ingress traffic, and you always accept the traffic from the internet, even if you have a stuff (here your appliance) already on Google Cloud Network with a private IP.
The solution here (to test, depends on the appliance capacity) is to use Cloud NAT and to route all the traffic of the subnet on which the appliance is deployed, and to use a reserved static IP.
Then, on App Engine, you can set a firewall rule to accept only traffic from this reserved static IP.
The latency will increase with all these layers...
I have a scenario in which some HTTP service is deployed on AWS instance and I want to access this privately in my Google cloud function. What I have tested so far that using a VPN Gateway I can connect both google and AWS compute instance. BUT now I am looking for how it can be possible while using Google functions which are not under any VPC to access the service over VPN gateway.
Is there any way I can assign my google cloud function to the VPC through which I can call AWS service over VPN Gateway?
You can create a serverless VPC Connector in the Google CLoud VPC that you want and add it to your function.
On your function configuration, you can choose to route only the private IP through this connector, or all the requests initiated by the Cloud Functions.
So, if your route are correct, it should work!
I have a service which runs on Cloud Run, and a MYSQL, MongoDB databases on Compute Engine. Currently, I'm using public IP for connect between them, I want to use internal IP for improving performance, but i cant find solution for this problem, Please help me some ideas, Thanks.
Now is supported. You can use VPC network connector (Beta):
This feature is in a pre-release state and might change or have
limited support. For more information, see the product launch stages.
This page shows how to use Serverless VPC Access to connect a Cloud
Run (fully managed) service directly to your VPC network, allowing
access to Compute Engine VM instances, Memorystore instances, and any
other resources with an internal IP address.
To use Serverless VPC Access in a Cloud Run (fully managed) service,
you first need to create a Serverless VPC Access connector to handle
communication to your VPC network. After you create the connector, you
set your Cloud Run (fully managed) service configuration to use that
connector.
Here how to create: Creating a Serverless VPC Access connector and here an overview about it: Serverless VPC Access example
According to official documentation Connecting to instances using advanced methods
If you have an isolated instance that doesn't have an external IP
address (such as an instance that is intentionally isolated from
external networks), you can still connect to it by using its internal
IP address on a Google Cloud Virtual Private Cloud (VPC) network
However, if you check the services not yet supported for Cloud Run, you will find:
Virtual Private Cloud Cloud Run (fully managed) cannot connect to VPC
network.
Services not yet supported
You can now do that by running this command upon deployment:
gcloud run deploy SERVICE --image gcr.io/PROJECT_ID/IMAGE --vpc-connector CONNECTOR_NAME
If you already have a Cloud Run deployment, you can update it by running the command:
cloud run services update SERVICE --vpc-connector CONNECTOR_NAME
More information about that here
Connecting from Cloud Run Managed to VPC private addresses is not yet supported.
This feature is in development and is called Serverless VPC Access. You can read more here.
If you have a Compute Engine instance running in the same VPC with a public IP address, you can create an SSH tunnel to connect to private IP addresses through the public instance. This requires creating the tunnel in your own code, which is easy to do.