TL;DR. I would like to ready output from previous stack in newer one with local Pulumi stack saving. For example to create a AWS Fargate ECS cluster in previously created VPC/Subnets. How to do that in Python?
I've created dev Pulumi stack, applied code:
$ mkdir pulumi-infra-az
$ pulumi login --local
$ pulumi stack init dev
And got such Outputs:
...
Outputs:
pulumi-private-subnet-ids: [
[0]: "subnet-0dcbaabe273db8feb"
[1]: "subnet-08c63207611c6bae2"
[2]: "subnet-00fa346a71a323551"
]
pulumi-public-subnet-ids : [
[0]: "subnet-02c50846690f2cd70"
[1]: "subnet-06282506863db7ac1"
[2]: "subnet-0cfae8a4f5e4fc03c"
]
pulumi-vpc-id : "vpc-0767f0d49e3a59d42"
Resources:
~ 3 updated
22 unchanged
Duration: 10s
Permalink: file:///root/.pulumi/stacks/dev.json
...
As you can see here I am using local stack placement /root/.pulumi/stacks/dev.json. So far so good. Now in other dir I would like to create fargate cluster description:
$ mkdir pulumi-ecs-fargate
$ pulumi stack init dev-ecs # by the way can I use the same `dev` stack name here?
And here I need to read previously created pulumi-private-subnet-ids, pulumi-public-subnet-ids, pulumi-vpc-id output values? How to do that correct?
I've found only https://app.pulumi.com backend examples:
https://www.pulumi.com/docs/intro/concepts/organizing-stacks-projects/#inter-stack-dependencies
https://www.pulumi.com/docs/intro/concepts/programming-model/#stack-references
https://www.pulumi.com/docs/tutorials/aws/aws-py-stackreference/
Could anybody provide local or AWS s3 example how to read output in other stack/dir?
Ok, reading local state outputs is also possible. Login and create first stack:
$ pulumi logout
$ pulumi login --local
$ mkdrir pulumi-infra-az
$ cd pulumi-infra-az
$ pulumi stack init pulumi-infra-az-dev
Apply it:
$ pulumi up
...
Outputs:
pulumi-private-subnet-ids: [
[0]: "subnet-0e8eb4cd276720a51"
[1]: "subnet-0447d96727f6fdf62"
[2]: "subnet-02e0e1d44183f7733"
]
pulumi-public-subnet-ids : [
[0]: "subnet-00b1c052633b93f73"
[1]: "subnet-0333dd2abc409acb7"
[2]: "subnet-006e949371228f8bd"
]
pulumi-vpc-id : "vpc-0e59fc2d7df06bac0"
Resources:
+ 25 created
...
Now create new dir and stack:
$ mkdir pulumi-ecs-fargate
$ cd pulumi-ecs-fargate
$ pulumi stack init pulumi-ecs-fargate-dev
Stacks name should be diffent. And than read outputs in new one:
...
# Reading local state
infra = pulumi.StackReference(f"pulumi-infra-az-dev")
# Read back the default VPC and public subnets, which we will use.
pulumi_vpc = infra.get_output("pulumi-vpc-id")
pulumi_private_subnets = infra.get_output("pulumi-private-subnet-ids")
pulumi_public_subnets = infra.get_output("pulumi-public-subnet-ids")
...
Very sad that Pulumi doesn't have good manuals/examples.