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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* 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 plugin
import (
"log"
"strings"
utils "github.com/onap/multicloud-k8s/src/k8splugin/internal"
"github.com/onap/multicloud-k8s/src/k8splugin/internal/config"
"github.com/onap/multicloud-k8s/src/k8splugin/internal/helm"
pkgerrors "github.com/pkg/errors"
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/apimachinery/pkg/runtime/schema"
"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)
//Get a kubernetes resource based on the groupVersionKind and resourceName provided in resource
Get(resource helm.KubernetesResource, namespace string, client KubernetesConnector) (string, error)
//List all resources of the specified GroupVersionKind in the given namespace
//If gvk is empty, the plugin will return all supported objects in the namespace
List(gvk schema.GroupVersionKind, namespace string, client KubernetesConnector) ([]helm.KubernetesResource, error)
//Delete a kubernetes resource described in the provided namespace
Delete(resource helm.KubernetesResource, namespace string, client KubernetesConnector) error
//Update kubernetes resource based on the groupVersionKind and resourceName provided in resource
Update(yamlFilePath string, namespace string, client KubernetesConnector) (string, error)
}
// GetPluginByKind returns a plugin by the kind name
// If plugin does not exist, it will return the generic plugin
// TODO: Change this once we have a plugin registration mechanism
func GetPluginByKind(kind string) (Reference, error) {
typePlugin, ok := utils.LoadedPlugins[strings.ToLower(kind)]
if !ok {
log.Println("No plugin for kind " + kind + " found. Using generic Plugin")
typePlugin, ok = utils.LoadedPlugins["generic"]
if !ok {
return nil, pkgerrors.New("No generic plugin found")
}
}
symbol, err := typePlugin.Lookup("ExportedVariable")
if err != nil {
return nil, pkgerrors.Wrap(err, "No ExportedVariable symbol found")
}
//Assert if it implements the PluginReference interface
pluginImpl, ok := symbol.(Reference)
if !ok {
return nil, pkgerrors.New("ExportedVariable does not implement plugins.Reference interface type")
}
return pluginImpl, nil
}
// 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
}
|
