Add namespace permission grants

[ypt]

Update: here's the PR for the Streamnative repo: streamnative#23. I'll close this PR once the Streamnative one is merged.

---

Usage follows the description here: streamnative#8

resource "pulsar_namespace" "test" {
  ...
  permission_grant {
    role = "my-consumer"
    actions = ["consume"]
  }
}

Integrated Testing

Run Pulsar

docker run --rm -it \
  -p 6650:6650 \
  -p 8080:8080 \
  --name pulsar \
  apachepulsar/pulsar:2.7.0 \
  bin/pulsar standalone

Execute tests

make testacc

Manual Testing

Run Pulsar

docker run --rm -it \
  -p 6650:6650 \
  -p 8080:8080 \
  --name pulsar \
  apachepulsar/pulsar:2.7.0 \
  bin/pulsar standalone

build and install the provider

make build && mv terraform-provider-pulsar ~/.terraform.d/plugins/terraform-provider-pulsar

# or if you don't want to overwrite an existing provider
make build && mv terraform-provider-pulsar ~/.terraform.d/plugins/terraform-provider-pulsar2

Set up a test main.tf somewhere that looks like the following

provider "pulsar" { # or "pulsar2" if you renamed the provider
  web_service_url = "http://127.0.0.1:8080"
}

resource "pulsar_namespace" "test" {
  # Uncomment if you renamed the provider
  # provider = "pulsar2"

  tenant    = "public"
  namespace = "my-namespace-1"

  permission_grant {
    role = "my-role-1"
    actions = ["consume"]
  }

  permission_grant {
    role = "my-role-2"
    actions = ["consume", "produce"]
  }
}

Init Terraform and apply changes

terraform init
terraform plan
terraform apply

Get namespace permissions and see if they're what's expected

docker exec -it pulsar /pulsar/bin/pulsar-admin namespaces permissions public/my-namespace-1

Try adding, editing, removing permission grants in main.tf and reapply the Terraform and validate the results are as expected

[rwstauner]

a few go nits but looks reasonable. i'm not very familiar with this repo so i'll look it over a little more and compare it to the rest of the codebase.

[ypt]

Streamnative has approved and merged the analogous PR into their repo (streamnative#23) - so we can close this one now.