Is it possible to have a stack responsible for dep...
# helpg
George Evans
09/03/2021, 10:07 AMIs it possible to have a stack responsible for deploying a shared VPC using sst? I would like to create the VPC within my stack but I don't want each local development environment to deploy its own VPC as it becomes expensive when we have 4/5 developers working on a project
a
Aram
09/03/2021, 10:34 AMyou can create a separate stack responsible only for that for example and then set vpc config on the other stack that deploys the functions
g
George Evans
09/03/2021, 10:35 AMSo I have done that but all stacks within the main() funtion get deployed everytime you run yarn start?
George Evans
09/03/2021, 10:36 AM Copy code
const sharedResources = new SharedResourceStack(app, "SharedResources");
new APIStack(app, "ApiStack", { vpc: sharedResources.vpc });a
Adrián Mouly
09/03/2021, 11:57 AMI have the same question.
Adrián Mouly
09/03/2021, 11:57 AMMaybe you need a different project to create the network.
Adrián Mouly
09/03/2021, 11:57 AMLike.. you can have a cdk/sst project which creates the foundation, VPC, VPN, etc.
Adrián Mouly
09/03/2021, 11:58 AMAnd then other project which is the application-focused infrastructure, where each developer can work with.
Adrián Mouly
09/03/2021, 11:58 AMThen, on that one, you can do a “vpc lookup”, and use the previously created VPC.
Adrián Mouly
09/03/2021, 11:59 AMThis is what I’m planning to do. In my current setup the dev-VPC has been created with CF years ago, and I’m doing “vpc lookup” to use it with SST.
Possibly in the future I’m going to migrate those old CF files.
Adrián Mouly
09/03/2021, 12:00 PMAlso, you can have a conditional check, first doing a lookup, and if doesn’t exists create the vpc.
g
George Evans
09/03/2021, 1:00 PMYeah I guess the downside is you then have to have both the CDK app structure and the sst app structure which is a bit clunky
a
Adrián Mouly
09/03/2021, 1:11 PMWell, could be sst also.
Adrián Mouly
09/03/2021, 1:11 PMBut in that case will be 2 projects.
Adrián Mouly
09/03/2021, 1:11 PMNetwork/Foundation project + Apps project.
Adrián Mouly
09/03/2021, 1:12 PMI had this discussion with my CTO, because he doens’t want to create RDS server for each developer, so I have to reuse that also.
Adrián Mouly
09/03/2021, 1:13 PMSo in my case, my “foundation” project is going to contain: VPC, VPN, security groups, RDS… and maybe something else.
g
George Evans
09/03/2021, 1:17 PMyeah makes sense 👍 cheers
a
Aram
09/03/2021, 2:11 PM@George Evans sorry, I meant separate project, looks like you figured that out already though
f
Frank
09/03/2021, 2:33 PM
Could it also work if your SharedResouceStack looked like this:
Copy code
this.vpc = scope.stage === "prod"
? new ec2.Vpc(...)
: ec2.Vpc.fromLookup(...);Frank
09/03/2021, 2:34 PM
essentially creating the VPC only in 1 stage and imports it in the others stages
g
George Evans
09/03/2021, 3:28 PMYes I think that could work as well. For now I have just used cdk cli to deploy any shared resources. Generally those resources change very rarely so this works reasonably well. Thanks both for your help 👍
f
Frank
09/03/2021, 6:42 PM
Np George! Btw what do u mean by cdk cli?
g
George Evans
09/07/2021, 1:28 PMsorry frank only just seen this. I just mean using
cdk deploy VPCStacksst deploy