forked from operator-framework/operator-sdk
-
Notifications
You must be signed in to change notification settings - Fork 0
/
role.go
184 lines (173 loc) · 5.14 KB
/
role.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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
// Copyright 2018 The Operator-SDK 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 scaffold
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"log"
"path/filepath"
"github.com/operator-framework/operator-sdk/internal/util/fileutil"
"github.com/operator-framework/operator-sdk/pkg/scaffold/input"
yaml "gopkg.in/yaml.v2"
rbacv1 "k8s.io/api/rbac/v1"
cgoscheme "k8s.io/client-go/kubernetes/scheme"
)
const RoleYamlFile = "role.yaml"
type Role struct {
input.Input
}
func (s *Role) GetInput() (input.Input, error) {
if s.Path == "" {
s.Path = filepath.Join(DeployDir, RoleYamlFile)
}
s.TemplateBody = roleTemplate
return s.Input, nil
}
func UpdateRoleForResource(r *Resource, absProjectPath string) error {
// append rbac rule to deploy/role.yaml
roleFilePath := filepath.Join(absProjectPath, DeployDir, RoleYamlFile)
roleYAML, err := ioutil.ReadFile(roleFilePath)
if err != nil {
return fmt.Errorf("failed to read role manifest %v: %v", roleFilePath, err)
}
obj, _, err := cgoscheme.Codecs.UniversalDeserializer().Decode(roleYAML, nil, nil)
if err != nil {
return fmt.Errorf("failed to decode role manifest %v: %v", roleFilePath, err)
}
switch role := obj.(type) {
// TODO: use rbac/v1.
case *rbacv1.Role:
pr := &rbacv1.PolicyRule{}
apiGroupFound := false
for i := range role.Rules {
if role.Rules[i].APIGroups[0] == r.FullGroup {
apiGroupFound = true
pr = &role.Rules[i]
break
}
}
// check if the resource already exists
for _, resource := range pr.Resources {
if resource == r.Resource {
log.Printf("deploy/role.yaml RBAC rules already up to date for the resource (%v, %v)", r.APIVersion, r.Kind)
return nil
}
}
pr.Resources = append(pr.Resources, r.Resource)
// create a new apiGroup if not found.
if !apiGroupFound {
pr.APIGroups = []string{r.FullGroup}
// Using "*" to allow access to the resource and all its subresources e.g "memcacheds" and "memcacheds/finalizers"
// https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/#ownerreferencespermissionenforcement
pr.Resources = []string{"*"}
pr.Verbs = []string{"*"}
role.Rules = append(role.Rules, *pr)
}
// update role.yaml
d, err := json.Marshal(&role)
if err != nil {
return fmt.Errorf("failed to marshal role(%+v): %v", role, err)
}
m := &map[string]interface{}{}
err = yaml.Unmarshal(d, m)
data, err := yaml.Marshal(m)
if err != nil {
return fmt.Errorf("failed to marshal role(%+v): %v", role, err)
}
if err := ioutil.WriteFile(roleFilePath, data, fileutil.DefaultFileMode); err != nil {
return fmt.Errorf("failed to update %v: %v", roleFilePath, err)
}
case *rbacv1.ClusterRole:
pr := &rbacv1.PolicyRule{}
apiGroupFound := false
for i := range role.Rules {
if role.Rules[i].APIGroups[0] == r.FullGroup {
apiGroupFound = true
pr = &role.Rules[i]
break
}
}
// check if the resource already exists
for _, resource := range pr.Resources {
if resource == r.Resource {
log.Printf("deploy/role.yaml RBAC rules already up to date for the resource (%v, %v)", r.APIVersion, r.Kind)
return nil
}
}
pr.Resources = append(pr.Resources, r.Resource)
// create a new apiGroup if not found.
if !apiGroupFound {
pr.APIGroups = []string{r.FullGroup}
// Using "*" to allow access to the resource and all its subresources e.g "memcacheds" and "memcacheds/finalizers"
// https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/#ownerreferencespermissionenforcement
pr.Resources = []string{"*"}
pr.Verbs = []string{"*"}
role.Rules = append(role.Rules, *pr)
}
// update role.yaml
d, err := json.Marshal(&role)
if err != nil {
return fmt.Errorf("failed to marshal role(%+v): %v", role, err)
}
m := &map[string]interface{}{}
err = yaml.Unmarshal(d, m)
data, err := yaml.Marshal(m)
if err != nil {
return fmt.Errorf("failed to marshal role(%+v): %v", role, err)
}
if err := ioutil.WriteFile(roleFilePath, data, fileutil.DefaultFileMode); err != nil {
return fmt.Errorf("failed to update %v: %v", roleFilePath, err)
}
default:
return errors.New("failed to parse role.yaml as a role")
}
// not reachable
return nil
}
const roleTemplate = `kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: {{.ProjectName}}
rules:
- apiGroups:
- ""
resources:
- pods
- services
- endpoints
- persistentvolumeclaims
- events
- configmaps
- secrets
verbs:
- "*"
- apiGroups:
- apps
resources:
- deployments
- daemonsets
- replicasets
- statefulsets
verbs:
- "*"
- apiGroups:
- monitoring.coreos.com
resources:
- servicemonitors
verbs:
- "get"
- "create"
`