forked from juju/juju
/
container.go
152 lines (133 loc) · 3.8 KB
/
container.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
// Copyright 2013-2106 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package kvm
import (
"fmt"
"github.com/juju/errors"
"github.com/juju/utils/arch"
"github.com/juju/juju/container"
"github.com/juju/juju/container/kvm/libvirt"
"github.com/juju/juju/environs/imagedownloads"
"github.com/juju/juju/environs/simplestreams"
"github.com/juju/juju/network"
"github.com/juju/juju/status"
)
type kvmContainer struct {
factory *containerFactory
name string
// started is a three state boolean, true, false, or unknown
// this allows for checking when we don't know, but using a
// value if we already know it (like in the list situation).
started *bool
pathfinder func(string) (string, error)
runCmd runFunc
}
var _ Container = (*kvmContainer)(nil)
func (c *kvmContainer) Name() string {
return c.name
}
func (c *kvmContainer) Start(params StartParams) error {
var srcFunc func() simplestreams.DataSource
if params.ImageDownloadURL != "" {
srcFunc = func() simplestreams.DataSource {
return imagedownloads.NewDataSource(params.ImageDownloadURL)
}
}
var ftype = BIOSFType
if params.Arch == arch.ARM64 {
ftype = UEFIFType
}
sp := syncParams{
arch: params.Arch,
series: params.Series,
ftype: ftype,
srcFunc: srcFunc,
}
logger.Debugf("synchronise images for %s %s %s", sp.arch, sp.series, params.ImageDownloadURL)
var callback ProgressCallback
if params.StatusCallback != nil {
callback = func(msg string) {
params.StatusCallback(status.Provisioning, msg, nil)
}
}
if err := Sync(sp, nil, callback); err != nil {
if !errors.IsAlreadyExists(err) {
return errors.Trace(err)
}
logger.Debugf("image already cached %s", err)
}
var bridge string
var interfaces []libvirt.InterfaceInfo
if params.Network != nil {
if params.Network.NetworkType == container.BridgeNetwork {
bridge = params.Network.Device
for _, iface := range params.Network.Interfaces {
interfaces = append(interfaces, interfaceInfo{config: iface})
}
} else {
err := errors.New("Non-bridge network devices not yet supported")
logger.Infof(err.Error())
return err
}
}
logger.Debugf("create the machine %s", c.name)
if params.StatusCallback != nil {
params.StatusCallback(status.Provisioning, "Creating instance", nil)
}
if err := CreateMachine(CreateMachineParams{
Hostname: c.name,
Series: params.Series,
UserDataFile: params.UserDataFile,
NetworkBridge: bridge,
Memory: params.Memory,
CpuCores: params.CpuCores,
RootDisk: params.RootDisk,
Interfaces: interfaces,
}); err != nil {
return err
}
logger.Debugf("Set machine %s to autostart", c.name)
if params.StatusCallback != nil {
params.StatusCallback(status.Provisioning, "Starting instance", nil)
}
return AutostartMachine(c)
}
func (c *kvmContainer) Stop() error {
if !c.IsRunning() {
logger.Debugf("%s is already stopped", c.name)
return nil
}
// Make started state unknown again.
c.started = nil
logger.Debugf("Stop %s", c)
return DestroyMachine(c)
}
func (c *kvmContainer) IsRunning() bool {
if c.started != nil {
return *c.started
}
machines, err := ListMachines(run)
if err != nil {
return false
}
c.started = isRunning(machines[c.name])
return *c.started
}
func (c *kvmContainer) String() string {
return fmt.Sprintf("<KVM container %v>", *c)
}
type interfaceInfo struct {
config network.InterfaceInfo
}
// MACAddress returns the embedded MacAddress value.
func (i interfaceInfo) MACAddress() string {
return i.config.MACAddress
}
// InterfaceName returns the embedded InterfaceName value.
func (i interfaceInfo) InterfaceName() string {
return i.config.InterfaceName
}
// ParentInterfaceName returns the embedded ParentInterfaceName value.
func (i interfaceInfo) ParentInterfaceName() string {
return i.config.ParentInterfaceName
}