cloud_vendor.go

/*
Copyright The CloudNativePG Contributors

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package utils

import (
	"fmt"
	"os"
)

// TestEnvVendor is the type of cloud vendor the e2e test is running on
type TestEnvVendor string

// testVendorEnvVarName holds the env variable name used externally to
// define a specific cloud vendor
const testVendorEnvVarName = "TEST_CLOUD_VENDOR"

// AKS azure cloud cluster
var AKS = TestEnvVendor("aks")

// EKS amazon elastic cloud cluster
var EKS = TestEnvVendor("eks")

// GKE google cloud cluster
var GKE = TestEnvVendor("gke")

// LOCAL kind or k3d cluster running locally
var LOCAL = TestEnvVendor("local")

var vendors = map[string]*TestEnvVendor{
	"aks":   &AKS,
	"eks":   &EKS,
	"gke":   &GKE,
	"local": &LOCAL,
}

// TestCloudVendor creates the environment for testing
func TestCloudVendor() (*TestEnvVendor, error) {
	vendorEnv, exists := os.LookupEnv(testVendorEnvVarName)
	if exists {
		if vendor, ok := vendors[vendorEnv]; ok {
			return vendor, nil
		}
		return nil, fmt.Errorf("unknow cloud vendor %s", vendorEnv)
	}
	// if none above, it is a local
	return &LOCAL, nil
}