feat: add test generator

Signed-off-by: Mateusz Urbanek <[email protected]>

Author: shanduur

Diff for: test/generator/config-sample.yaml

@@ -0,0 +1,30 @@
+templates: {}
+  # chainsaw-test.yaml: "/path/to/non-default/template.gotpl"
+  # BucketAccess.yaml: "/path/to/non-default/template.gotpl"
+  # BucketAccessClass.yaml: "/path/to/non-default/template.gotpl"
+  # BucketClaim.yaml: "/path/to/non-default/template.gotpl"
+  # BucketClass.yaml: "/path/to/non-default/template.gotpl"
+
+driver: sample-driver.objectstorage.k8s.io
+
+deletionPolicy:
+- Retain
+- Delete
+
+authenticationType:
+- IAM
+- Key
+
+protocol:
+- S3
+- Azure
+
+bucketClassParams:
+- foo: bar
+  baz: cux
+- baz: cux
+
+bucketAccessClassParams:
+- foo: bar
+  baz: cux
+- baz: cux

Diff for: test/generator/config.yaml

@@ -0,0 +1,10 @@
+templates: {}
+driver: sample-driver.objectstorage.k8s.io
+deletionPolicy:
+- Delete
+authenticationType:
+- Key
+protocol:
+- S3
+bucketClassParams: []
+bucketAccessClassParams: []

Diff for: test/generator/config/config.go

@@ -0,0 +1,97 @@
+/*
+Copyright 2024 The Kubernetes Authors.
+
+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 config
+
+import (
+	"bytes"
+	"io"
+	"os"
+
+	"sigs.k8s.io/container-object-storage-interface-api/apis/objectstorage/v1alpha1"
+	"sigs.k8s.io/yaml"
+)
+
+// Load reads the YAML configuration from the provided file path and unmarshals it into a Config struct.
+// It returns a pointer to the Config struct and any error encountered during the process.
+func Load(path string) (*Config, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	buf := new(bytes.Buffer)
+
+	_, err = io.Copy(buf, f)
+	if err != nil {
+		return nil, err
+	}
+
+	cfg := &Config{}
+
+	err = yaml.Unmarshal(buf.Bytes(), cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg, nil
+}
+
+// Config represents the configuration for generating tests.
+// It includes various fields like driver details, deletion policies, authentication types, protocols,
+// and parameters for BucketClass and BucketAccessClass.
+type Config struct {
+	// Templates contains paths to the YAML templates for various resources.
+	Templates Templates `json:"templates"`
+
+	// Driver is the name of the driver used in the test configuration.
+	Driver string `json:"driver"`
+
+	// DeletionPolicy is a list of deletion policies to be applied in the tests.
+	DeletionPolicy []v1alpha1.DeletionPolicy `json:"deletionPolicy"`
+
+	// AuthenticationType is a list of authentication types to be used in the tests.
+	AuthenticationType []v1alpha1.AuthenticationType `json:"authenticationType"`
+
+	// Protocol is a list of protocols to be used in the tests.
+	Protocol []v1alpha1.Protocol `json:"protocol"`
+
+	// BucketClassParams is a list of parameters for configuring BucketClass resources.
+	BucketClassParams []map[string]string `json:"bucketClassParams"`
+
+	// BucketAccessClassParams is a list of parameters for configuring BucketAccessClass resources.
+	BucketAccessClassParams []map[string]string `json:"bucketAccessClassParams"`
+}
+
+// Templates represents the file paths to the templates used for generating various Kubernetes resources.
+// These templates are referenced in the test configurations.
+type Templates struct {
+	// ChainsawTest is the path to the Chainsaw test YAML template.
+	ChainsawTest string `json:"chainsaw-test.yaml"`
+
+	// BucketAccess is the path to the BucketAccess YAML template.
+	BucketAccess string `json:"BucketAccess.yaml"`
+
+	// BucketAccessClass is the path to the BucketAccessClass YAML template.
+	BucketAccessClass string `json:"BucketAccessClass.yaml"`
+
+	// BucketClaim is the path to the BucketClaim YAML template.
+	BucketClaim string `json:"BucketClaim.yaml"`
+
+	// BucketClass is the path to the BucketClass YAML template.
+	BucketClass string `json:"BucketClass.yaml"`
+}