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
|
package container // import "github.com/docker/docker/container"
import (
"fmt"
"os"
"path/filepath"
"github.com/docker/docker/api/types"
containertypes "github.com/docker/docker/api/types/container"
swarmtypes "github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/pkg/system"
)
const (
containerConfigMountPath = `C:\`
containerSecretMountPath = `C:\ProgramData\Docker\secrets`
containerInternalSecretMountPath = `C:\ProgramData\Docker\internal\secrets`
containerInternalConfigsDirPath = `C:\ProgramData\Docker\internal\configs`
// defaultStopSignal is the default syscall signal used to stop a container.
defaultStopSignal = "SIGTERM"
// defaultStopTimeout is the timeout (in seconds) for the shutdown call on a container
defaultStopTimeout = 30
)
// UnmountIpcMount unmounts Ipc related mounts.
// This is a NOOP on windows.
func (container *Container) UnmountIpcMount() error {
return nil
}
// IpcMounts returns the list of Ipc related mounts.
func (container *Container) IpcMounts() []Mount {
return nil
}
// CreateSecretSymlinks creates symlinks to files in the secret mount.
func (container *Container) CreateSecretSymlinks() error {
for _, r := range container.SecretReferences {
if r.File == nil {
continue
}
resolvedPath, _, err := container.ResolvePath(getSecretTargetPath(r))
if err != nil {
return err
}
if err := system.MkdirAll(filepath.Dir(resolvedPath), 0); err != nil {
return err
}
if err := os.Symlink(filepath.Join(containerInternalSecretMountPath, r.SecretID), resolvedPath); err != nil {
return err
}
}
return nil
}
// SecretMounts returns the mount for the secret path.
// All secrets are stored in a single mount on Windows. Target symlinks are
// created for each secret, pointing to the files in this mount.
func (container *Container) SecretMounts() ([]Mount, error) {
var mounts []Mount
if len(container.SecretReferences) > 0 {
src, err := container.SecretMountPath()
if err != nil {
return nil, err
}
mounts = append(mounts, Mount{
Source: src,
Destination: containerInternalSecretMountPath,
Writable: false,
})
}
return mounts, nil
}
// UnmountSecrets unmounts the fs for secrets
func (container *Container) UnmountSecrets() error {
p, err := container.SecretMountPath()
if err != nil {
return err
}
return os.RemoveAll(p)
}
// CreateConfigSymlinks creates symlinks to files in the config mount.
func (container *Container) CreateConfigSymlinks() error {
for _, configRef := range container.ConfigReferences {
if configRef.File == nil {
continue
}
resolvedPath, _, err := container.ResolvePath(getConfigTargetPath(configRef))
if err != nil {
return err
}
if err := system.MkdirAll(filepath.Dir(resolvedPath), 0); err != nil {
return err
}
if err := os.Symlink(filepath.Join(containerInternalConfigsDirPath, configRef.ConfigID), resolvedPath); err != nil {
return err
}
}
return nil
}
// ConfigMounts returns the mount for configs.
// TODO: Right now Windows doesn't really have a "secure" storage for secrets,
// however some configs may contain secrets. Once secure storage is worked out,
// configs and secret handling should be merged.
func (container *Container) ConfigMounts() []Mount {
var mounts []Mount
if len(container.ConfigReferences) > 0 {
mounts = append(mounts, Mount{
Source: container.ConfigsDirPath(),
Destination: containerInternalConfigsDirPath,
Writable: false,
})
}
return mounts
}
// DetachAndUnmount unmounts all volumes.
// On Windows it only delegates to `UnmountVolumes` since there is nothing to
// force unmount.
func (container *Container) DetachAndUnmount(volumeEventLog func(name, action string, attributes map[string]string)) error {
return container.UnmountVolumes(volumeEventLog)
}
// TmpfsMounts returns the list of tmpfs mounts
func (container *Container) TmpfsMounts() ([]Mount, error) {
var mounts []Mount
return mounts, nil
}
// UpdateContainer updates configuration of a container. Callers must hold a Lock on the Container.
func (container *Container) UpdateContainer(hostConfig *containertypes.HostConfig) error {
resources := hostConfig.Resources
if resources.CPUShares != 0 ||
resources.Memory != 0 ||
resources.NanoCPUs != 0 ||
resources.CgroupParent != "" ||
resources.BlkioWeight != 0 ||
len(resources.BlkioWeightDevice) != 0 ||
len(resources.BlkioDeviceReadBps) != 0 ||
len(resources.BlkioDeviceWriteBps) != 0 ||
len(resources.BlkioDeviceReadIOps) != 0 ||
len(resources.BlkioDeviceWriteIOps) != 0 ||
resources.CPUPeriod != 0 ||
resources.CPUQuota != 0 ||
resources.CPURealtimePeriod != 0 ||
resources.CPURealtimeRuntime != 0 ||
resources.CpusetCpus != "" ||
resources.CpusetMems != "" ||
len(resources.Devices) != 0 ||
len(resources.DeviceCgroupRules) != 0 ||
resources.KernelMemory != 0 ||
resources.MemoryReservation != 0 ||
resources.MemorySwap != 0 ||
resources.MemorySwappiness != nil ||
resources.OomKillDisable != nil ||
(resources.PidsLimit != nil && *resources.PidsLimit != 0) ||
len(resources.Ulimits) != 0 ||
resources.CPUCount != 0 ||
resources.CPUPercent != 0 ||
resources.IOMaximumIOps != 0 ||
resources.IOMaximumBandwidth != 0 {
return fmt.Errorf("resource updating isn't supported on Windows")
}
// update HostConfig of container
if hostConfig.RestartPolicy.Name != "" {
if container.HostConfig.AutoRemove && !hostConfig.RestartPolicy.IsNone() {
return fmt.Errorf("Restart policy cannot be updated because AutoRemove is enabled for the container")
}
container.HostConfig.RestartPolicy = hostConfig.RestartPolicy
}
return nil
}
// BuildHostnameFile writes the container's hostname file.
func (container *Container) BuildHostnameFile() error {
return nil
}
// GetMountPoints gives a platform specific transformation to types.MountPoint. Callers must hold a Container lock.
func (container *Container) GetMountPoints() []types.MountPoint {
mountPoints := make([]types.MountPoint, 0, len(container.MountPoints))
for _, m := range container.MountPoints {
mountPoints = append(mountPoints, types.MountPoint{
Type: m.Type,
Name: m.Name,
Source: m.Path(),
Destination: m.Destination,
Driver: m.Driver,
RW: m.RW,
})
}
return mountPoints
}
func (container *Container) ConfigsDirPath() string {
return filepath.Join(container.Root, "configs")
}
// ConfigFilePath returns the path to the on-disk location of a config.
func (container *Container) ConfigFilePath(configRef swarmtypes.ConfigReference) (string, error) {
return filepath.Join(container.ConfigsDirPath(), configRef.ConfigID), nil
}
|
