forked from openshift/origin
-
Notifications
You must be signed in to change notification settings - Fork 1
/
admin.go
238 lines (219 loc) · 7.75 KB
/
admin.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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
package openshift
import (
"bytes"
"fmt"
"io"
"os"
"path"
"path/filepath"
"github.com/golang/glog"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apiserver/pkg/authentication/serviceaccount"
kapi "k8s.io/kubernetes/pkg/api"
kclientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
"github.com/openshift/origin/pkg/bootstrap/docker/errors"
"github.com/openshift/origin/pkg/client"
"github.com/openshift/origin/pkg/cmd/admin/policy"
"github.com/openshift/origin/pkg/cmd/admin/registry"
"github.com/openshift/origin/pkg/cmd/admin/router"
"github.com/openshift/origin/pkg/cmd/server/admin"
"github.com/openshift/origin/pkg/cmd/util/clientcmd"
"github.com/openshift/origin/pkg/cmd/util/variable"
)
const (
DefaultNamespace = "default"
SvcDockerRegistry = "docker-registry"
SvcRouter = "router"
masterConfigDir = "/var/lib/origin/openshift.local.config/master"
RegistryServiceIP = "172.30.1.1"
)
// InstallRegistry checks whether a registry is installed and installs one if not already installed
func (h *Helper) InstallRegistry(kubeClient kclientset.Interface, f *clientcmd.Factory, configDir, images, pvDir string, out, errout io.Writer) error {
_, err := kubeClient.Core().Services(DefaultNamespace).Get(SvcDockerRegistry, metav1.GetOptions{})
if err == nil {
// If there's no error, the registry already exists
return nil
}
if !apierrors.IsNotFound(err) {
return errors.NewError("error retrieving docker registry service").WithCause(err).WithDetails(h.OriginLog())
}
err = AddSCCToServiceAccount(kubeClient, "privileged", "registry", "default")
if err != nil {
return errors.NewError("cannot add privileged SCC to registry service account").WithCause(err).WithDetails(h.OriginLog())
}
imageTemplate := variable.NewDefaultImageTemplate()
imageTemplate.Format = images
opts := ®istry.RegistryOptions{
Config: ®istry.RegistryConfig{
Name: "registry",
Type: "docker-registry",
ImageTemplate: imageTemplate,
Ports: "5000",
Replicas: 1,
Labels: "docker-registry=default",
Volume: "/registry",
ServiceAccount: "registry",
HostMount: path.Join(pvDir, "registry"),
ClusterIP: RegistryServiceIP,
},
}
cmd := registry.NewCmdRegistry(f, "", "registry", out, errout)
output := &bytes.Buffer{}
err = opts.Complete(f, cmd, output, output, []string{})
if err != nil {
return errors.NewError("error completing the registry configuration").WithCause(err)
}
err = opts.RunCmdRegistry()
glog.V(4).Infof("Registry command output:\n%s", output.String())
if err != nil {
return errors.NewError("cannot install registry").WithCause(err).WithDetails(h.OriginLog())
}
return nil
}
// InstallRouter installs a default router on the OpenShift server
func (h *Helper) InstallRouter(kubeClient kclientset.Interface, f *clientcmd.Factory, configDir, images, hostIP string, portForwarding bool, out, errout io.Writer) error {
_, err := kubeClient.Core().Services(DefaultNamespace).Get(SvcRouter, metav1.GetOptions{})
if err == nil {
// Router service already exists, nothing to do
return nil
}
if !apierrors.IsNotFound(err) {
return errors.NewError("error retrieving router service").WithCause(err).WithDetails(h.OriginLog())
}
masterDir := filepath.Join(configDir, "master")
// Create service account for router
routerSA := &kapi.ServiceAccount{}
routerSA.Name = "router"
_, err = kubeClient.Core().ServiceAccounts("default").Create(routerSA)
if err != nil {
return errors.NewError("cannot create router service account").WithCause(err).WithDetails(h.OriginLog())
}
// Add router SA to privileged SCC
privilegedSCC, err := kubeClient.Core().SecurityContextConstraints().Get("privileged", metav1.GetOptions{})
if err != nil {
return errors.NewError("cannot retrieve privileged SCC").WithCause(err).WithDetails(h.OriginLog())
}
privilegedSCC.Users = append(privilegedSCC.Users, serviceaccount.MakeUsername("default", "router"))
_, err = kubeClient.Core().SecurityContextConstraints().Update(privilegedSCC)
if err != nil {
return errors.NewError("cannot update privileged SCC").WithCause(err).WithDetails(h.OriginLog())
}
routingSuffix := h.routingSuffix
if len(routingSuffix) == 0 {
routingSuffix = fmt.Sprintf("%s.nip.io", hostIP)
}
// Create router cert
cmdOutput := &bytes.Buffer{}
createCertOptions := &admin.CreateServerCertOptions{
SignerCertOptions: &admin.SignerCertOptions{
CertFile: filepath.Join(masterDir, "ca.crt"),
KeyFile: filepath.Join(masterDir, "ca.key"),
SerialFile: filepath.Join(masterDir, "ca.serial.txt"),
},
Overwrite: true,
Hostnames: []string{
routingSuffix,
// This will ensure that routes using edge termination and the default
// certs will use certs valid for their arbitrary subdomain names.
fmt.Sprintf("*.%s", routingSuffix),
},
CertFile: filepath.Join(masterDir, "router.crt"),
KeyFile: filepath.Join(masterDir, "router.key"),
Output: cmdOutput,
}
_, err = createCertOptions.CreateServerCert()
if err != nil {
return errors.NewError("cannot create router cert").WithCause(err)
}
err = catFiles(filepath.Join(masterDir, "router.pem"),
filepath.Join(masterDir, "router.crt"),
filepath.Join(masterDir, "router.key"),
filepath.Join(masterDir, "ca.crt"))
if err != nil {
return err
}
imageTemplate := variable.NewDefaultImageTemplate()
imageTemplate.Format = images
cfg := &router.RouterConfig{
Name: "router",
Type: "haproxy-router",
ImageTemplate: imageTemplate,
Ports: "80:80,443:443",
Replicas: 1,
Labels: "router=<name>",
DefaultCertificate: filepath.Join(masterDir, "router.pem"),
StatsPort: 1936,
StatsUsername: "admin",
HostNetwork: !portForwarding,
HostPorts: true,
ServiceAccount: "router",
}
output := &bytes.Buffer{}
cmd := router.NewCmdRouter(f, "", "router", out, errout)
cmd.SetOutput(output)
err = router.RunCmdRouter(f, cmd, output, output, cfg, []string{})
glog.V(4).Infof("Router command output:\n%s", output.String())
if err != nil {
return errors.NewError("cannot install router").WithCause(err).WithDetails(h.OriginLog())
}
return nil
}
func AddClusterRole(osClient client.Interface, role, user string) error {
clusterRoleBindingAccessor := policy.NewClusterRoleBindingAccessor(osClient)
addClusterReaderRole := policy.RoleModificationOptions{
RoleName: role,
RoleBindingAccessor: clusterRoleBindingAccessor,
Users: []string{user},
}
return addClusterReaderRole.AddRole()
}
func AddRoleToServiceAccount(osClient client.Interface, role, sa, namespace string) error {
roleBindingAccessor := policy.NewLocalRoleBindingAccessor(namespace, osClient)
addRole := policy.RoleModificationOptions{
RoleName: role,
RoleBindingAccessor: roleBindingAccessor,
Subjects: []kapi.ObjectReference{
{
Namespace: namespace,
Name: sa,
Kind: "ServiceAccount",
},
},
}
return addRole.AddRole()
}
func AddSCCToServiceAccount(kubeClient kclientset.Interface, scc, sa, namespace string) error {
modifySCC := policy.SCCModificationOptions{
SCCName: scc,
SCCInterface: kubeClient.Core(),
Subjects: []kapi.ObjectReference{
{
Namespace: namespace,
Name: sa,
Kind: "ServiceAccount",
},
},
}
return modifySCC.AddSCC()
}
// catFiles concatenates multiple source files into a single destination file
func catFiles(dest string, src ...string) error {
out, err := os.Create(dest)
if err != nil {
return err
}
defer out.Close()
for _, f := range src {
in, oerr := os.Open(f)
if oerr != nil {
return err
}
_, err = io.Copy(out, in)
in.Close()
if err != nil {
return err
}
}
return nil
}