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Add TF config/testing script for cloudkms #617

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Feb 19, 2021
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Add TF config/testing script for cloudkms #617

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4de7549
Add TF config/testing script for cloudkms
azhao155 Feb 15, 2021
13d57af
rename/refactor variable
azhao155 Feb 19, 2021
f3e7c99
Add setup for credentials
azhao155 Feb 19, 2021
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40 changes: 40 additions & 0 deletions google/resource-snippets/cloudkms-v1/README.md
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# Cloudkms Snippets

## DM

Setup:

* Install [gcloud](https://cloud.google.com/sdk/docs/install)
* Create GCP project
* Setup [Credential](https://registry.terraform.io/providers/hashicorp/google/latest/docs/guides/getting_started#adding-credentials)

```bash
DM_PROJECT_ID=[DM_PROJECT_ID]
gcloud config set project $DM_PROJECT_ID
gcloud services enable deploymentmanager.googleapis.com
gcloud deployment-manager deployments create d1 --config kms.yaml
```

## Terraform

Setup:

* Install [gcloud](https://cloud.google.com/sdk/docs/install)
* Install [terraform](https://www.terraform.io/downloads.html)
* Create GCP project
* Setup [Credential](https://registry.terraform.io/providers/hashicorp/google/latest/docs/guides/getting_started#adding-credentials)

```bash
TF_PROJECT_ID=[TF_PROJECT_ID]
gcloud config set project $TF_PROJECT_ID
cd alternatives/tf
terraform init
terraform plan -var="deployment=d1" -var="project_id=${TF_PROJECT_ID}"
terraform apply -auto-approve -var="deployment=d1" -var="project_id=${TF_PROJECT_ID}"
```

## Testing

```bash
sh test_alternatives.sh
```
42 changes: 42 additions & 0 deletions google/resource-snippets/cloudkms-v1/alternatives/tf/cloudkms.tf
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variable "project_id" {}
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variable "deployment" {}
variable "user" {}

provider "google" {
project = var.project_id
region = "us-central1"
zone = "us-central1-c"
}

resource "google_kms_key_ring" "default" {
name = "test-keyring"
location = "us-central1"
}

resource "google_kms_crypto_key" "default" {
name = format("%s-cryptoKey", var.deployment)
key_ring = google_kms_key_ring.default.id
purpose = "ENCRYPT_DECRYPT"
labels = {
foo = var.deployment
}
}

data "google_iam_policy" "admin" {
binding {
role = "roles/cloudkms.admin"

members = [
var.user,
]
}
}

resource "google_kms_crypto_key_iam_policy" "crypto_key" {
crypto_key_id = google_kms_crypto_key.default.id
policy_data = data.google_iam_policy.admin.policy_data
}

data "google_kms_crypto_key_version" "crypto-key-version" {
crypto_key = google_kms_crypto_key.default.self_link
}
2 changes: 1 addition & 1 deletion google/resource-snippets/cloudkms-v1/kms.jinja
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Expand Up @@ -17,7 +17,7 @@ resources:
type: gcp-types/cloudkms-v1:projects.locations.keyRings
properties:
parent: projects/{{ env["project"] }}/locations/{{ properties["region"] }}
keyRingId: test-{{ properties["time"] }}-keyRing
keyRingId: test-keyRing
- name: cryptoKey
type: gcp-types/cloudkms-v1:projects.locations.keyRings.cryptoKeys
properties:
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39 changes: 39 additions & 0 deletions google/resource-snippets/cloudkms-v1/test_alternatives.sh
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set -e

# assumes that the following projects are created and kubectl context is set to a cluster in KRM_PROJECT
TF_PROJECT_ID=[TF_PROJECT_ID]
DM_PROJECT_ID=[DM_PROJECT_ID]

gcloud auth application-default login
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# Create DM resources
gcloud config set project $DM_PROJECT_ID
gcloud services enable deploymentmanager.googleapis.com --project $DM_PROJECT_ID
gcloud services enable cloudkms.googleapis.com --project $DM_PROJECT_ID
gcloud deployment-manager deployments create d1 --config kms.yaml

# Create Terraform resources
pushd alternatives/tf
gcloud config set project $TF_PROJECT_ID
gcloud services enable cloudkms.googleapis.com --project $TF_PROJECT_ID
terraform plan -var="deployment=d1" -var="project_id=${TF_PROJECT_ID}" -var="user=<user_name>"
terraform apply -auto-approve -var="deployment=d1" -var="project_id=${TF_PROJECT_ID}"
popd

# Export DM and TF resources for comparison
gcloud kms keys list --keyring test-keyRing --location us-central1 --project $DM_PROJECT_ID | grep d1 | sed "s/${DM_PROJECT_ID}/PROJECT/" \
> /tmp/${DM_PROJECT_ID}.yaml

gcloud kms keys list --keyring test-keyRing --location us-central1 --project $TF_PROJECT_ID | grep d1 | sed "s/${TF_PROJECT_ID}/PROJECT/" \
> /tmp/${TF_PROJECT_ID}.yaml

diff /tmp/${TF_PROJECT_ID}.yaml /tmp/${DM_PROJECT_ID}.yaml

if [[ $(diff /tmp/${TF_PROJECT_ID}.yaml /tmp/${DM_PROJECT_ID}.yaml) ]]; then
echo "TF and DM outputs are NOT identical"
exit 1
else
echo "TF and DM outputs are identical"
fi

exit 0