summaryrefslogtreecommitdiffstats
path: root/src/rsync/pkg/connector/connector.go
blob: 6e17f87a929b0ab2eedb2c20e0751bd49e2632ca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
/*
 * Copyright 2019 Intel Corporation, Inc
 *
 * 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 connector

import (
	"log"

	"github.com/onap/multicloud-k8s/src/rsync/pkg/internal/config"

	corev1 "k8s.io/api/core/v1"
	"k8s.io/apimachinery/pkg/api/meta"
	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/client-go/dynamic"
	"k8s.io/client-go/kubernetes"
)

// KubernetesConnector is an interface that is expected to be implemented
// by any code that calls the plugin framework functions.
// It implements methods that are needed by the plugins to get Kubernetes
// clients and other information needed to interface with Kubernetes
type KubernetesConnector interface {
	//GetMapper returns the RESTMapper that was created for this client
	GetMapper() meta.RESTMapper

	//GetDynamicClient returns the dynamic client that is needed for
	//unstructured REST calls to the apiserver
	GetDynamicClient() dynamic.Interface

	// GetStandardClient returns the standard client that can be used to handle
	// standard kubernetes kinds
	GetStandardClient() kubernetes.Interface

	//GetInstanceID returns the InstanceID for tracking during creation
	GetInstanceID() string
}

// Reference is the interface that is implemented
type Reference interface {
	//Create a kubernetes resource described by the yaml in yamlFilePath
	Create(yamlFilePath string, namespace string, client KubernetesConnector) (string, error)
	//Delete a kubernetes resource described in the provided namespace
	Delete(yamlFilePath string, resname string, namespace string, client KubernetesConnector) error
}

// TagPodsIfPresent finds the PodTemplateSpec from any workload
// object that contains it and changes the spec to include the tag label
func TagPodsIfPresent(unstruct *unstructured.Unstructured, tag string) {

	spec, ok := unstruct.Object["spec"].(map[string]interface{})
	if !ok {
		log.Println("Error converting spec to map")
		return
	}

	template, ok := spec["template"].(map[string]interface{})
	if !ok {
		log.Println("Error converting template to map")
		return
	}

	//Attempt to convert the template to a podtemplatespec.
	//This is to check if we have any pods being created.
	podTemplateSpec := &corev1.PodTemplateSpec{}
	err := runtime.DefaultUnstructuredConverter.FromUnstructured(template, podTemplateSpec)
	if err != nil {
		log.Println("Did not find a podTemplateSpec: " + err.Error())
		return
	}

	labels := podTemplateSpec.GetLabels()
	if labels == nil {
		labels = map[string]string{}
	}
	labels[config.GetConfiguration().KubernetesLabelName] = tag
	podTemplateSpec.SetLabels(labels)

	updatedTemplate, err := runtime.DefaultUnstructuredConverter.ToUnstructured(podTemplateSpec)

	//Set the label
	spec["template"] = updatedTemplate
}