-
Notifications
You must be signed in to change notification settings - Fork 453
/
hcloud.go
213 lines (173 loc) · 6.12 KB
/
hcloud.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
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
// Package hcloud contains the Hcloud implementation of the [platform.Platform].
package hcloud
import (
"context"
"fmt"
"log"
"net/netip"
"strings"
"github.com/cosi-project/runtime/pkg/state"
"github.com/siderolabs/go-procfs/procfs"
"gopkg.in/yaml.v3"
"github.com/siderolabs/talos/internal/app/machined/pkg/runtime"
"github.com/siderolabs/talos/internal/app/machined/pkg/runtime/v1alpha1/platform/errors"
"github.com/siderolabs/talos/internal/app/machined/pkg/runtime/v1alpha1/platform/internal/netutils"
"github.com/siderolabs/talos/pkg/download"
"github.com/siderolabs/talos/pkg/machinery/constants"
"github.com/siderolabs/talos/pkg/machinery/nethelpers"
"github.com/siderolabs/talos/pkg/machinery/resources/network"
runtimeres "github.com/siderolabs/talos/pkg/machinery/resources/runtime"
)
// Hcloud is the concrete type that implements the runtime.Platform interface.
type Hcloud struct{}
// Name implements the runtime.Platform interface.
func (h *Hcloud) Name() string {
return "hcloud"
}
// ParseMetadata converts HCloud metadata to platform network configuration.
//
//nolint:gocyclo
func (h *Hcloud) ParseMetadata(unmarshalledNetworkConfig *NetworkConfig, metadata *MetadataConfig) (*runtime.PlatformNetworkConfig, error) {
networkConfig := &runtime.PlatformNetworkConfig{}
if metadata.Hostname != "" {
hostnameSpec := network.HostnameSpecSpec{
ConfigLayer: network.ConfigPlatform,
}
if err := hostnameSpec.ParseFQDN(metadata.Hostname); err != nil {
return nil, err
}
networkConfig.Hostnames = append(networkConfig.Hostnames, hostnameSpec)
}
publicIPs := []string{}
if metadata.PublicIPv4 != "" {
publicIPs = append(publicIPs, metadata.PublicIPv4)
}
for _, ntwrk := range unmarshalledNetworkConfig.Config {
if ntwrk.Type != "physical" {
continue
}
networkConfig.Links = append(networkConfig.Links, network.LinkSpecSpec{
Name: ntwrk.Interfaces,
Up: true,
ConfigLayer: network.ConfigPlatform,
})
for _, subnet := range ntwrk.Subnets {
if subnet.Type == "dhcp" && subnet.Ipv4 {
networkConfig.Operators = append(networkConfig.Operators, network.OperatorSpecSpec{
Operator: network.OperatorDHCP4,
LinkName: ntwrk.Interfaces,
DHCP4: network.DHCP4OperatorSpec{
RouteMetric: network.DefaultRouteMetric,
},
ConfigLayer: network.ConfigPlatform,
})
}
if subnet.Type == "static" {
ipAddr, err := netip.ParsePrefix(subnet.Address)
if err != nil {
return nil, err
}
family := nethelpers.FamilyInet4
if ipAddr.Addr().Is6() {
publicIPs = append(publicIPs, strings.SplitN(subnet.Address, "/", 2)[0])
family = nethelpers.FamilyInet6
}
networkConfig.Addresses = append(networkConfig.Addresses,
network.AddressSpecSpec{
ConfigLayer: network.ConfigPlatform,
LinkName: ntwrk.Interfaces,
Address: ipAddr,
Scope: nethelpers.ScopeGlobal,
Flags: nethelpers.AddressFlags(nethelpers.AddressPermanent),
Family: family,
},
)
}
if subnet.Gateway != "" && subnet.Ipv6 {
gw, err := netip.ParseAddr(subnet.Gateway)
if err != nil {
return nil, err
}
route := network.RouteSpecSpec{
ConfigLayer: network.ConfigPlatform,
Gateway: gw,
OutLinkName: ntwrk.Interfaces,
Table: nethelpers.TableMain,
Protocol: nethelpers.ProtocolStatic,
Type: nethelpers.TypeUnicast,
Family: nethelpers.FamilyInet6,
Priority: network.DefaultRouteMetric,
}
route.Normalize()
networkConfig.Routes = append(networkConfig.Routes, route)
}
}
}
for _, ipStr := range publicIPs {
if ip, err := netip.ParseAddr(ipStr); err == nil {
networkConfig.ExternalIPs = append(networkConfig.ExternalIPs, ip)
}
}
networkConfig.Metadata = &runtimeres.PlatformMetadataSpec{
Platform: h.Name(),
Hostname: metadata.Hostname,
Region: metadata.Region,
Zone: metadata.AvailabilityZone,
InstanceID: metadata.InstanceID,
ProviderID: fmt.Sprintf("hcloud://%s", metadata.InstanceID),
}
return networkConfig, nil
}
// Configuration implements the runtime.Platform interface.
func (h *Hcloud) Configuration(ctx context.Context, r state.State) ([]byte, error) {
if err := netutils.Wait(ctx, r); err != nil {
return nil, err
}
log.Printf("fetching machine config from: %q", HCloudUserDataEndpoint)
return download.Download(ctx, HCloudUserDataEndpoint,
download.WithErrorOnNotFound(errors.ErrNoConfigSource),
download.WithErrorOnEmptyResponse(errors.ErrNoConfigSource))
}
// Mode implements the runtime.Platform interface.
func (h *Hcloud) Mode() runtime.Mode {
return runtime.ModeCloud
}
// KernelArgs implements the runtime.Platform interface.
func (h *Hcloud) KernelArgs(string) procfs.Parameters {
return []*procfs.Parameter{
procfs.NewParameter("console").Append("tty1").Append("ttyS0"),
procfs.NewParameter(constants.KernelParamNetIfnames).Append("0"),
}
}
// NetworkConfiguration implements the runtime.Platform interface.
func (h *Hcloud) NetworkConfiguration(ctx context.Context, _ state.State, ch chan<- *runtime.PlatformNetworkConfig) error {
metadata, err := h.getMetadata(ctx)
if err != nil {
return err
}
log.Printf("fetching hcloud network config from: %q", HCloudNetworkEndpoint)
metadataNetworkConfig, err := download.Download(ctx, HCloudNetworkEndpoint)
if err != nil {
return fmt.Errorf("failed to fetch network config from metadata service: %w", err)
}
var unmarshalledNetworkConfig NetworkConfig
if err = yaml.Unmarshal(metadataNetworkConfig, &unmarshalledNetworkConfig); err != nil {
return err
}
if unmarshalledNetworkConfig.Version != 1 {
return fmt.Errorf("network-config metadata version=%d is not supported", unmarshalledNetworkConfig.Version)
}
networkConfig, err := h.ParseMetadata(&unmarshalledNetworkConfig, metadata)
if err != nil {
return err
}
select {
case ch <- networkConfig:
case <-ctx.Done():
return ctx.Err()
}
return nil
}