Hello I ve EIP that is associated privateIp address of the i

Question

Hello I ve EIP that is associated privateIp address of the instance how do I add EIP into inbound rules of the security group attached to that instance chicken and egg problem I m getting `TypeError Cannot read property publicIp of undefined` ```const sgc = new aws ec2 SecurityGroup sg c vpcId vpcId name `$ baseTags Prefix intranet sg` ingress protocol tcp fromPort 1521 toPort 1521 cidrBlocks `$ vmaEip publicIp 32` tags baseTags ``` ```const vma = new aws ec2 Instance vm a tags Name `$ baseTags Prefix vm a` baseTags instanceType t3 xlarge vpcSecurityGroupIds sgc id ami AMI ID subnetId subnetId keyName deployer keyName privateIp VMA IP deleteBeforeReplace true ``` ```const vmaEip = new aws ec2 Eip vm a eip associateWithPrivateIp vma privateIp instance vma id vpc true tags baseTags ```

white-balloon-205 · Answer

See `pulumi interpolate` <https www pulumi com docs intro concepts programming model outputs and strings|https www pulumi com docs intro concepts programming model outputs and strings>

busy-magazine-48939 · Answer

Thanks < white balloon 205> I tried to use both `concat` and `interpolate` but it doesn t make any effect still getting same error

busy-magazine-48939 · Answer

Although I noticed that `interpolate` works within module where EIP resource is defined but if I try to interpolate it in another module referenced via import then it fails

busy-magazine-48939 · Answer

The only way I could make it work is to use `concat stack getOutput outputId ` however my understanding always was that `getOutput ` is meant to be used for cross stack references primarily is my understanding wrong Is it feasible to use `stack getOutput ` within one stack