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terraform-provider-env0

Terraform provider to interact with env0

Available in the Terraform Registry

The full list of supported resources is available here.

Example usage

terraform {
  required_providers {
    env0 = {
      source = "env0/env0"
      version = "~> 0.0.13"
    }
  }
}

provider "env0" {}

data "env0_project" "default_project" {
  name = "Default Organization Project"
}

resource "env0_template" "example" {
  name        = "example"
  description = "Example template"
  repository  = "https://github.com/env0/templates"
  path        = "aws/hello-world"
}

resource "env0_configuration_variable" "in_a_template" {
  name        = "VARIABLE_NAME"
  value       = "some value"
  template_id = env0_template.tested1.id
}

Authentication

First, generate an api_key and api_secret from the organization settings page. See here.

These can be provided by one of two methods. First method consists of setting ENV0_API_KEY and ENV0_API_SECRET environment variables, and just declaring the provider with no parameters:

provider "env0" {}

The second method would be to specify these fields as parameters to the provider:

variable "env0_api_key" {}
variable "env0_api_secret" {}

provider "env0" {
  api_key = var.env0_api_key
  api_secret = var.env0_api_secret
}

Dev setup

make sure you run with go version 1.16

Build

  • Use the ./build.sh script.
  • The output binary is called terraform-provider-env0

Run local version of the provider

  • Build - ./build.sh
  • Create the plugins folder - mkdir -p ~/.terraform.d/plugins/terraform.env0.com/local/env0/6.6.6/darwin_amd64
  • Copy the built binary - cp ./terraform-provider-env0 ~/.terraform.d/plugins/terraform.env0.com/local/env0/6.6.6/darwin_amd64 (Replace darwin with linux on Linux)
  • Require the local provider in your main.tf -
terraform {
  required_providers {
    env0 = {
      version = "6.6.6"
      source  = "terraform.env0.com/local/env0"
    }
  }
}

Testing

Integration tests

  • The integration tests run against the real env0 API
  • Have ENV0_API_KEY and ENV0_API_SECRET environment variables defined.
  • Also set ENV0_API_ENDPOINT if you want to run against a non-prod environment.
  • Run go run tests/harness.go (from the project root folder) to run all the tests.
  • Use go run tests/harness.go 003_configuration_variable to run a specific test.

Each test perform the following steps:

  • terraform init
  • terraform apply -auto-approve -var second_run=0
  • terraform apply -auto-approve -var second_run=1
  • terraform outputs -json - and verifies expected outputs from expected_outputs.json
  • terraform destroy

The harness has two modes to help while developing: If an environment variable DESTROY_MODE exists and it's value is NO_DESTROY, the harness will avoid calling terraform destroy, allowing the developer to inspect the resources created, through the dashboard, for example. Afterwards, when cleanup is required, just set DESTROY_MODE to DESTROY_ONLY and only terraform destroy will run.

Unit Testing

How to run tests

Run from root directory:

go test ./...

Running a single provider test

export TEST_PATTERN="TestUnitConfigurationVariableResource/Create" && go test ./env0

How to use mocks

  1. Make sure GOPATH is in your PATH
go env GOPATH
echo $PATH
export PATH=$PATH:$(go env GOPATH)  # if not
  1. Install mockgen
go install github.com/golang/mock/[email protected]
  1. Make sure to add this line in files that include the interface you'd wish to mock:
//go:generate mockgen -destination=<file>_mock.go -package=<package> . <interface>
  1. Run from root directory:
go generate ./...

Documentation

  • Docs are generated using github.com/hashicorp/terraform-plugin-docs
  • Run ./generate-docs.sh to generate docs
  • Must be run manually before releasing a version
  • Please add an example to examples/<resources or data-sources>/env0_<name> dir and make sure it is added to the docs.

Release

To release a version to the Terraform Public Registry - 5. The Registry will automatically pick up on the new version. If the registry says the release doesn't have any binaries, check the result of the release Github action. You might need to Resync the registry after the action finishes.