forked from openshift/ovn-kubernetes
-
Notifications
You must be signed in to change notification settings - Fork 0
/
node.go
163 lines (140 loc) · 4.13 KB
/
node.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
package cluster
import (
"net"
"runtime"
"time"
"github.com/sirupsen/logrus"
"github.com/openvswitch/ovn-kubernetes/go-controller/pkg/cni"
"github.com/openvswitch/ovn-kubernetes/go-controller/pkg/config"
"github.com/openvswitch/ovn-kubernetes/go-controller/pkg/ovn"
kapi "k8s.io/api/core/v1"
"k8s.io/client-go/tools/cache"
)
const (
windowsOS = "windows"
)
// StartClusterNode learns the subnet assigned to it by the master controller
// and calls the SetupNode script which establishes the logical switch
func (cluster *OvnClusterController) StartClusterNode(name string) error {
count := 300
var err error
var node *kapi.Node
var subnet *net.IPNet
for count > 0 {
if count != 300 {
time.Sleep(time.Second)
}
count--
// setup the node, create the logical switch
node, err = cluster.Kube.GetNode(name)
if err != nil {
logrus.Errorf("Error starting node %s, no node found - %v", name, err)
continue
}
sub, ok := node.Annotations[OvnHostSubnet]
if !ok {
logrus.Errorf("Error starting node %s, no annotation found on node for subnet - %v", name, err)
continue
}
_, subnet, err = net.ParseCIDR(sub)
if err != nil {
logrus.Errorf("Invalid hostsubnet found for node %s - %v", node.Name, err)
return err
}
break
}
if count == 0 {
logrus.Errorf("Failed to get node/node-annotation for %s - %v", name, err)
return err
}
logrus.Infof("Node %s ready for ovn initialization with subnet %s", node.Name, subnet.String())
err = setupOVNNode(name, config.Kubernetes.APIServer, config.Kubernetes.Token,
config.Kubernetes.CACert)
if err != nil {
return err
}
err = ovn.CreateManagementPort(node.Name, subnet.String(),
cluster.ClusterIPNet.String(),
cluster.ClusterServicesSubnet)
if err != nil {
return err
}
if cluster.GatewayInit {
if runtime.GOOS == windowsOS {
panic("Windows is not supported as a gateway node")
}
err = cluster.initGateway(node.Name, cluster.ClusterIPNet.String(),
subnet.String())
if err != nil {
return err
}
}
if err = config.WriteCNIConfig(); err != nil {
return err
}
if cluster.OvnHA {
err = cluster.watchNamespaceUpdate(node, subnet.String())
return err
}
// start the cni server
cniServer := cni.NewCNIServer("")
err = cniServer.Start(cni.HandleCNIRequest)
return err
}
// If default namespace MasterOverlayIP annotation has been chaged, update
// config.OvnNorth and config.OvnSouth auth with new ovn-nb and ovn-remote
// IP address
func (cluster *OvnClusterController) updateOvnNode(masterIP string,
node *kapi.Node, subnet string) error {
err := config.UpdateOvnNodeAuth(masterIP)
if err != nil {
return err
}
err = setupOVNNode(node.Name, config.Kubernetes.APIServer,
config.Kubernetes.Token, config.Kubernetes.CACert)
if err != nil {
logrus.Errorf("Failed to setup OVN node (%v)", err)
return err
}
// Recreate logical switch and management port for this node
err = ovn.CreateManagementPort(node.Name, subnet,
cluster.ClusterIPNet.String(),
cluster.ClusterServicesSubnet)
if err != nil {
return err
}
// Reinit Gateway for this node if the --init-gateways flag is set
if cluster.GatewayInit {
if runtime.GOOS == windowsOS {
panic("Windows is not supported as a gateway node")
}
err = cluster.initGateway(node.Name, cluster.ClusterIPNet.String(),
subnet)
if err != nil {
return err
}
}
return nil
}
// watchNamespaceUpdate starts watching namespace resources and calls back
// the update handler logic if there is any namspace update event
func (cluster *OvnClusterController) watchNamespaceUpdate(node *kapi.Node,
subnet string) error {
_, err := cluster.watchFactory.AddNamespaceHandler(
cache.ResourceEventHandlerFuncs{
UpdateFunc: func(old, newer interface{}) {
oldNs := old.(*kapi.Namespace)
oldMasterIP := oldNs.Annotations[MasterOverlayIP]
newNs := newer.(*kapi.Namespace)
newMasterIP := newNs.Annotations[MasterOverlayIP]
if newMasterIP != oldMasterIP {
err := cluster.updateOvnNode(newMasterIP, node, subnet)
if err != nil {
logrus.Errorf("Failed to update OVN node with new ",
"masterIP %s: %v", newMasterIP, err)
}
}
},
}, nil)
return err
}