-
Notifications
You must be signed in to change notification settings - Fork 395
/
manager.go
139 lines (117 loc) · 4.9 KB
/
manager.go
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
/*
Copyright 2022 The OpenYurt 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 manager
import (
"net"
"net/http"
"strconv"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/client-go/dynamic/dynamicinformer"
"k8s.io/client-go/informers"
"k8s.io/client-go/kubernetes"
"github.com/openyurtio/openyurt/cmd/yurthub/app/options"
"github.com/openyurtio/openyurt/pkg/yurthub/filter"
"github.com/openyurtio/openyurt/pkg/yurthub/filter/discardcloudservice"
"github.com/openyurtio/openyurt/pkg/yurthub/filter/hostnetworkpropagation"
"github.com/openyurtio/openyurt/pkg/yurthub/filter/inclusterconfig"
"github.com/openyurtio/openyurt/pkg/yurthub/filter/initializer"
"github.com/openyurtio/openyurt/pkg/yurthub/filter/masterservice"
"github.com/openyurtio/openyurt/pkg/yurthub/filter/nodeportisolation"
"github.com/openyurtio/openyurt/pkg/yurthub/filter/servicetopology"
"github.com/openyurtio/openyurt/pkg/yurthub/kubernetes/serializer"
"github.com/openyurtio/openyurt/pkg/yurthub/util"
)
type Manager struct {
filter.Approver
nameToObjectFilter map[string]filter.ObjectFilter
serializerManager *serializer.SerializerManager
}
func NewFilterManager(options *options.YurtHubOptions,
sharedFactory informers.SharedInformerFactory,
nodePoolFactory dynamicinformer.DynamicSharedInformerFactory,
proxiedClient kubernetes.Interface,
serializerManager *serializer.SerializerManager,
apiserverAddr string) (*Manager, error) {
if !options.EnableResourceFilter {
return nil, nil
}
if options.WorkingMode == string(util.WorkingModeCloud) {
options.DisabledResourceFilters = append(options.DisabledResourceFilters, filter.DisabledInCloudMode...)
}
filters := filter.NewFilters(options.DisabledResourceFilters)
registerAllFilters(filters)
mutatedMasterServiceHost, mutatedMasterServicePort, _ := net.SplitHostPort(apiserverAddr)
if options.AccessServerThroughHub {
mutatedMasterServicePort = strconv.Itoa(options.YurtHubProxySecurePort)
if options.EnableDummyIf {
mutatedMasterServiceHost = options.HubAgentDummyIfIP
} else {
mutatedMasterServiceHost = options.YurtHubProxyHost
}
}
objFilters, err := createObjectFilters(filters, sharedFactory, nodePoolFactory, proxiedClient, options.NodeName, options.NodePoolName, mutatedMasterServiceHost, mutatedMasterServicePort)
if err != nil {
return nil, err
}
m := &Manager{
nameToObjectFilter: make(map[string]filter.ObjectFilter),
serializerManager: serializerManager,
}
filterSupportedResAndVerbs := make(map[string]map[string]sets.String)
for i := range objFilters {
m.nameToObjectFilter[objFilters[i].Name()] = objFilters[i]
filterSupportedResAndVerbs[objFilters[i].Name()] = objFilters[i].SupportedResourceAndVerbs()
}
m.Approver = filter.NewApprover(sharedFactory, filterSupportedResAndVerbs)
return m, nil
}
func (m *Manager) FindResponseFilter(req *http.Request) (filter.ResponseFilter, bool) {
approved, filterNames := m.Approver.Approve(req)
if approved {
objectFilters := make([]filter.ObjectFilter, 0)
for i := range filterNames {
if objectFilter, ok := m.nameToObjectFilter[filterNames[i]]; ok {
objectFilters = append(objectFilters, objectFilter)
}
}
if len(objectFilters) == 0 {
return nil, false
}
return filter.CreateResponseFilter(filter.CreateFilterChain(objectFilters), m.serializerManager), true
}
return nil, false
}
// createObjectFilters return all object filters that initializations completed.
func createObjectFilters(filters *filter.Filters,
sharedFactory informers.SharedInformerFactory,
nodePoolFactory dynamicinformer.DynamicSharedInformerFactory,
proxiedClient kubernetes.Interface,
nodeName, nodePoolName, mutatedMasterServiceHost, mutatedMasterServicePort string) ([]filter.ObjectFilter, error) {
if filters == nil {
return nil, nil
}
genericInitializer := initializer.New(sharedFactory, nodePoolFactory, proxiedClient, nodeName, nodePoolName, mutatedMasterServiceHost, mutatedMasterServicePort)
initializerChain := filter.Initializers{}
initializerChain = append(initializerChain, genericInitializer)
return filters.NewFromFilters(initializerChain)
}
// registerAllFilters by order, the front registered filter will be
// called before the latter registered ones.
func registerAllFilters(filters *filter.Filters) {
servicetopology.Register(filters)
masterservice.Register(filters)
discardcloudservice.Register(filters)
inclusterconfig.Register(filters)
nodeportisolation.Register(filters)
hostnetworkpropagation.Register(filters)
}