-
Notifications
You must be signed in to change notification settings - Fork 4.7k
/
node_config.go
176 lines (148 loc) · 5.44 KB
/
node_config.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
package kubernetes
import (
"crypto/tls"
"fmt"
"net"
"strconv"
"strings"
"time"
kapp "github.com/GoogleCloudPlatform/kubernetes/cmd/kubelet/app"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/dockertools"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util/errors"
"github.com/golang/glog"
configapi "github.com/openshift/origin/pkg/cmd/server/api"
cmdutil "github.com/openshift/origin/pkg/cmd/util"
cmdflags "github.com/openshift/origin/pkg/cmd/util/flags"
"github.com/openshift/origin/pkg/cmd/util/variable"
)
// NodeConfig represents the required parameters to start the OpenShift node
// through Kubernetes. All fields are required.
type NodeConfig struct {
// BindAddress is the address to bind to
BindAddress string
// VolumeDir is the directory that volumes will be stored under
VolumeDir string
// AllowDisabledDocker if true, will make the Kubelet ignore errors from Docker
AllowDisabledDocker bool
// Client to connect to the master.
Client *client.Client
// DockerClient is a client to connect to Docker
DockerClient dockertools.DockerInterface
// KubeletServer contains the KubeletServer configuration
KubeletServer *kapp.KubeletServer
// KubeletConfig is the configuration for the kubelet, fully initialized
KubeletConfig *kapp.KubeletConfig
}
func BuildKubernetesNodeConfig(options configapi.NodeConfig) (*NodeConfig, error) {
kubeClient, _, err := configapi.GetKubeClient(options.MasterKubeConfig)
if err != nil {
return nil, err
}
if options.NodeName == "localhost" {
glog.Warningf(`Using "localhost" as node name will not resolve from all locations`)
}
var dnsIP net.IP
if len(options.DNSIP) > 0 {
dnsIP = net.ParseIP(options.DNSIP)
if dnsIP == nil {
return nil, fmt.Errorf("Invalid DNS IP: %s", options.DNSIP)
}
}
clientCAs, err := util.CertPoolFromFile(options.ServingInfo.ClientCA)
if err != nil {
return nil, err
}
imageTemplate := variable.NewDefaultImageTemplate()
imageTemplate.Format = options.ImageConfig.Format
imageTemplate.Latest = options.ImageConfig.Latest
var path string
var fileCheckInterval int64
if options.PodManifestConfig != nil {
path = options.PodManifestConfig.Path
fileCheckInterval = options.PodManifestConfig.FileCheckIntervalSeconds
}
var dockerExecHandler dockertools.ExecHandler
switch options.DockerConfig.ExecHandlerName {
case configapi.DockerExecHandlerNative:
dockerExecHandler = &dockertools.NativeExecHandler{}
case configapi.DockerExecHandlerNsenter:
dockerExecHandler = &dockertools.NsenterExecHandler{}
}
kubeAddress, kubePortStr, err := net.SplitHostPort(options.ServingInfo.BindAddress)
if err != nil {
return nil, fmt.Errorf("cannot parse node address: %v", err)
}
kubePort, err := strconv.Atoi(kubePortStr)
if err != nil {
return nil, fmt.Errorf("cannot parse node port: %v", err)
}
address := util.IP{}
if err := address.Set(kubeAddress); err != nil {
return nil, err
}
// declare the OpenShift defaults from config
server := kapp.NewKubeletServer()
server.Config = path
server.RootDirectory = options.VolumeDirectory
server.HostnameOverride = options.NodeName
server.AllowPrivileged = true
server.RegisterNode = true
server.Address = address
server.Port = uint(kubePort)
server.ReadOnlyPort = 0 // no read only access
server.ClusterDNS = util.IP(dnsIP)
server.ClusterDomain = options.DNSDomain
server.NetworkPluginName = options.NetworkPluginName
server.HostNetworkSources = strings.Join([]string{kubelet.ApiserverSource, kubelet.FileSource}, ",")
server.HTTPCheckFrequency = 0 // no remote HTTP pod creation access
server.FileCheckFrequency = time.Duration(fileCheckInterval) * time.Second
server.PodInfraContainerImage = imageTemplate.ExpandOrDie("pod")
// prevents kube from generating certs
server.TLSCertFile = options.ServingInfo.ServerCert.CertFile
server.TLSPrivateKeyFile = options.ServingInfo.ServerCert.KeyFile
if value := cmdutil.Env("OPENSHIFT_CONTAINERIZED", ""); len(value) > 0 {
server.Containerized = value == "true"
}
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubeletArguments, server.AddFlags); len(err) > 0 {
return nil, errors.NewAggregate(err)
}
cfg, err := server.KubeletConfig()
if err != nil {
return nil, err
}
// provide any config overrides
cfg.StreamingConnectionIdleTimeout = 5 * time.Minute // TODO: should be set
cfg.KubeClient = kubeClient
cfg.DockerExecHandler = dockerExecHandler
// TODO: could be cleaner
if configapi.UseTLS(options.ServingInfo) {
cfg.TLSOptions = &kubelet.TLSOptions{
Config: &tls.Config{
// Change default from SSLv3 to TLSv1.0 (because of POODLE vulnerability)
MinVersion: tls.VersionTLS10,
// RequireAndVerifyClientCert lets us limit requests to ones with a valid client certificate
ClientAuth: tls.RequireAndVerifyClientCert,
ClientCAs: clientCAs,
},
CertFile: options.ServingInfo.ServerCert.CertFile,
KeyFile: options.ServingInfo.ServerCert.KeyFile,
}
} else {
cfg.TLSOptions = nil
}
config := &NodeConfig{
BindAddress: options.ServingInfo.BindAddress,
AllowDisabledDocker: options.AllowDisabledDocker,
Client: kubeClient,
VolumeDir: options.VolumeDirectory,
KubeletServer: server,
KubeletConfig: cfg,
}
return config, nil
}