deploy: move cephfs/csi-config-map to API

Signed-off-by: riya-singhal31 <rsinghal@redhat.com>

api/deploy/kubernetes/cephfs/csi-config-map.go

@@ -0,0 +1,74 @@
+/*
+Copyright 2023 The Ceph-CSI 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 cephfs
+
+import (
+	"bytes"
+	_ "embed"
+	"fmt"
+	"text/template"
+
+	"github.com/ghodss/yaml"
+	v1 "k8s.io/api/core/v1"
+)
+
+//go:embed csi-config-map.yaml
+var csiConfigMap string
+
+type CSIConfigMapValues struct {
+	Name string
+}
+
+var CSIConfigMapDefaults = CSIConfigMapValues{
+	Name: "ceph-csi-config",
+}
+
+// NewCSIConfigMap takes a name from the CSIConfigMapValues struct and relaces
+// the value in the template. A ConfigMap object is returned which can be
+// created in the Kubernetes cluster.
+func NewCSIConfigMap(values CSIConfigMapValues) (*v1.ConfigMap, error) {
+	data, err := NewCSIConfigMapYAML(values)
+	if err != nil {
+		return nil, err
+	}
+
+	cm := &v1.ConfigMap{}
+	err = yaml.Unmarshal([]byte(data), cm)
+	if err != nil {
+		return nil, fmt.Errorf("failed convert YAML to %T: %w", cm, err)
+	}
+
+	return cm, nil
+}
+
+// NewCSIConfigMapYAML takes a name from the CSIConfigMapValues struct and
+// relaces the value in the template. A ConfigMap object in YAML is returned
+// which can be created in the Kubernetes cluster.
+func NewCSIConfigMapYAML(values CSIConfigMapValues) (string, error) {
+	var buf bytes.Buffer
+
+	tmpl, err := template.New("CSIConfigMap").Parse(csiConfigMap)
+	if err != nil {
+		return "", fmt.Errorf("failed to parse template: %w", err)
+	}
+	err = tmpl.Execute(&buf, values)
+	if err != nil {
+		return "", fmt.Errorf("failed to replace values in template: %w", err)
+	}
+
+	return buf.String(), nil
+}