-
Notifications
You must be signed in to change notification settings - Fork 14
/
controller_manager_boot.go
156 lines (138 loc) · 4.21 KB
/
controller_manager_boot.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
package k8s
import (
"context"
"github.com/cybozu-go/cke"
"github.com/cybozu-go/cke/op"
"github.com/cybozu-go/cke/op/common"
"k8s.io/client-go/tools/clientcmd"
)
type controllerManagerBootOp struct {
nodes []*cke.Node
cluster string
serviceSubnet string
params cke.ServiceParams
step int
files *common.FilesBuilder
}
// ControllerManagerBootOp returns an Operator to bootstrap kube-controller-manager
func ControllerManagerBootOp(nodes []*cke.Node, cluster string, serviceSubnet string, params cke.ServiceParams) cke.Operator {
return &controllerManagerBootOp{
nodes: nodes,
cluster: cluster,
serviceSubnet: serviceSubnet,
params: params,
files: common.NewFilesBuilder(nodes),
}
}
func (o *controllerManagerBootOp) Name() string {
return "kube-controller-manager-bootstrap"
}
func (o *controllerManagerBootOp) NextCommand() cke.Commander {
switch o.step {
case 0:
o.step++
return common.ImagePullCommand(o.nodes, cke.KubernetesImage)
case 1:
o.step++
return prepareControllerManagerFilesCommand{o.cluster, o.files}
case 2:
o.step++
return o.files
case 3:
o.step++
return common.RunContainerCommand(o.nodes,
op.KubeControllerManagerContainerName, cke.KubernetesImage,
common.WithParams(ControllerManagerParams(o.cluster, o.serviceSubnet)),
common.WithExtra(o.params))
default:
return nil
}
}
func (o *controllerManagerBootOp) Targets() []string {
ips := make([]string, len(o.nodes))
for i, n := range o.nodes {
ips[i] = n.Address
}
return ips
}
type prepareControllerManagerFilesCommand struct {
cluster string
files *common.FilesBuilder
}
func (c prepareControllerManagerFilesCommand) Run(ctx context.Context, inf cke.Infrastructure, _ string) error {
storage := inf.Storage()
ca, err := storage.GetCACertificate(ctx, cke.CAKubernetes)
if err != nil {
return err
}
g := func(ctx context.Context, n *cke.Node) ([]byte, error) {
crt, key, err := cke.KubernetesCA{}.IssueForControllerManager(ctx, inf)
if err != nil {
return nil, err
}
cfg := controllerManagerKubeconfig(c.cluster, ca, crt, key)
return clientcmd.Write(*cfg)
}
err = c.files.AddFile(ctx, op.ControllerManagerKubeConfigPath, g)
if err != nil {
return err
}
saKey, err := storage.GetServiceAccountKey(ctx)
if err != nil {
return err
}
saKeyData := []byte(saKey)
g = func(ctx context.Context, n *cke.Node) ([]byte, error) {
return saKeyData, nil
}
return c.files.AddFile(ctx, op.K8sPKIPath("service-account.key"), g)
}
func (c prepareControllerManagerFilesCommand) Command() cke.Command {
return cke.Command{
Name: "prepare-controller-manager-files",
}
}
// ControllerManagerParams returns parameters for kube-controller-manager.
func ControllerManagerParams(clusterName, serviceSubnet string) cke.ServiceParams {
args := []string{
"kube-controller-manager",
"--cluster-name=" + clusterName,
"--service-cluster-ip-range=" + serviceSubnet,
"--kubeconfig=" + op.ControllerManagerKubeConfigPath,
"--authentication-kubeconfig=" + op.ControllerManagerKubeConfigPath,
"--authorization-kubeconfig=" + op.ControllerManagerKubeConfigPath,
// ToDo: cluster signing
// https://kubernetes.io/docs/tasks/tls/managing-tls-in-a-cluster/#a-note-to-cluster-administrators
// https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet-tls-bootstrapping/
// Create an intermediate CA under cke/ca-kubernetes?
// or just an certificate/key pair?
// "--cluster-signing-cert-file=..."
// "--cluster-signing-key-file=..."
// for healthz service
"--tls-cert-file=" + op.K8sPKIPath("apiserver.crt"),
"--tls-private-key-file=" + op.K8sPKIPath("apiserver.key"),
// for service accounts
"--root-ca-file=" + op.K8sPKIPath("ca.crt"),
"--service-account-private-key-file=" + op.K8sPKIPath("service-account.key"),
"--use-service-account-credentials=true",
}
return cke.ServiceParams{
ExtraArguments: args,
ExtraBinds: []cke.Mount{
{
Source: "/etc/machine-id",
Destination: "/etc/machine-id",
ReadOnly: true,
Propagation: "",
Label: "",
},
{
Source: "/etc/kubernetes",
Destination: "/etc/kubernetes",
ReadOnly: true,
Propagation: "",
Label: cke.LabelShared,
},
},
}
}