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
|
package generate
import (
"context"
"github.com/containers/image/v5/manifest"
"github.com/containers/libpod/libpod"
ann "github.com/containers/libpod/pkg/annotations"
envLib "github.com/containers/libpod/pkg/env"
"github.com/containers/libpod/pkg/signal"
"github.com/containers/libpod/pkg/specgen"
"github.com/pkg/errors"
"golang.org/x/sys/unix"
)
func CompleteSpec(ctx context.Context, r *libpod.Runtime, s *specgen.SpecGenerator) error {
// If a rootfs is used, then there is no image data
if s.ContainerStorageConfig.Rootfs != "" {
return nil
}
newImage, err := r.ImageRuntime().NewFromLocal(s.Image)
if err != nil {
return err
}
_, mediaType, err := newImage.Manifest(ctx)
if err != nil {
return err
}
if s.HealthConfig == nil && mediaType == manifest.DockerV2Schema2MediaType {
s.HealthConfig, err = newImage.GetHealthCheck(ctx)
if err != nil {
return err
}
}
// Image stop signal
if s.StopSignal == nil {
stopSignal, err := newImage.StopSignal(ctx)
if err != nil {
return err
}
if stopSignal != "" {
sig, err := signal.ParseSignalNameOrNumber(stopSignal)
if err != nil {
return err
}
s.StopSignal = &sig
}
}
rtc, err := r.GetConfig()
if err != nil {
return err
}
// Get Default Environment
defaultEnvs, err := envLib.ParseSlice(rtc.Containers.Env)
if err != nil {
return errors.Wrap(err, "Env fields in containers.conf failed to parse")
}
// Image envs from the image if they don't exist
// already, overriding the default environments
imageEnvs, err := newImage.Env(ctx)
if err != nil {
return err
}
envs, err := envLib.ParseSlice(imageEnvs)
if err != nil {
return errors.Wrap(err, "Env fields from image failed to parse")
}
s.Env = envLib.Join(envLib.Join(defaultEnvs, envs), s.Env)
labels, err := newImage.Labels(ctx)
if err != nil {
return err
}
// labels from the image that dont exist already
if len(labels) > 0 && s.Labels == nil {
s.Labels = make(map[string]string)
}
for k, v := range labels {
if _, exists := s.Labels[k]; !exists {
s.Labels[k] = v
}
}
// annotations
// Add annotations from the image
annotations, err := newImage.Annotations(ctx)
if err != nil {
return err
}
for k, v := range annotations {
annotations[k] = v
}
// in the event this container is in a pod, and the pod has an infra container
// we will want to configure it as a type "container" instead defaulting to
// the behavior of a "sandbox" container
// In Kata containers:
// - "sandbox" is the annotation that denotes the container should use its own
// VM, which is the default behavior
// - "container" denotes the container should join the VM of the SandboxID
// (the infra container)
if len(s.Pod) > 0 {
annotations[ann.SandboxID] = s.Pod
annotations[ann.ContainerType] = ann.ContainerTypeContainer
}
// now pass in the values from client
for k, v := range s.Annotations {
annotations[k] = v
}
s.Annotations = annotations
// workdir
workingDir, err := newImage.WorkingDir(ctx)
if err != nil {
return err
}
if len(s.WorkDir) < 1 && len(workingDir) > 1 {
s.WorkDir = workingDir
}
if len(s.SeccompProfilePath) < 1 {
p, err := libpod.DefaultSeccompPath()
if err != nil {
return err
}
s.SeccompProfilePath = p
}
if len(s.User) == 0 {
s.User, err = newImage.User(ctx)
if err != nil {
return err
}
}
if err := finishThrottleDevices(s); err != nil {
return err
}
// Unless already set via the CLI, check if we need to disable process
// labels or set the defaults.
if len(s.SelinuxOpts) == 0 {
if err := setLabelOpts(s, r, s.PidNS, s.IpcNS); err != nil {
return err
}
}
return nil
}
// finishThrottleDevices takes the temporary representation of the throttle
// devices in the specgen and looks up the major and major minors. it then
// sets the throttle devices proper in the specgen
func finishThrottleDevices(s *specgen.SpecGenerator) error {
if bps := s.ThrottleReadBpsDevice; len(bps) > 0 {
for k, v := range bps {
statT := unix.Stat_t{}
if err := unix.Stat(k, &statT); err != nil {
return err
}
v.Major = (int64(unix.Major(statT.Rdev)))
v.Minor = (int64(unix.Minor(statT.Rdev)))
s.ResourceLimits.BlockIO.ThrottleReadBpsDevice = append(s.ResourceLimits.BlockIO.ThrottleReadBpsDevice, v)
}
}
if bps := s.ThrottleWriteBpsDevice; len(bps) > 0 {
for k, v := range bps {
statT := unix.Stat_t{}
if err := unix.Stat(k, &statT); err != nil {
return err
}
v.Major = (int64(unix.Major(statT.Rdev)))
v.Minor = (int64(unix.Minor(statT.Rdev)))
s.ResourceLimits.BlockIO.ThrottleWriteBpsDevice = append(s.ResourceLimits.BlockIO.ThrottleWriteBpsDevice, v)
}
}
if iops := s.ThrottleReadIOPSDevice; len(iops) > 0 {
for k, v := range iops {
statT := unix.Stat_t{}
if err := unix.Stat(k, &statT); err != nil {
return err
}
v.Major = (int64(unix.Major(statT.Rdev)))
v.Minor = (int64(unix.Minor(statT.Rdev)))
s.ResourceLimits.BlockIO.ThrottleReadIOPSDevice = append(s.ResourceLimits.BlockIO.ThrottleReadIOPSDevice, v)
}
}
if iops := s.ThrottleWriteIOPSDevice; len(iops) > 0 {
for k, v := range iops {
statT := unix.Stat_t{}
if err := unix.Stat(k, &statT); err != nil {
return err
}
v.Major = (int64(unix.Major(statT.Rdev)))
v.Minor = (int64(unix.Minor(statT.Rdev)))
s.ResourceLimits.BlockIO.ThrottleWriteIOPSDevice = append(s.ResourceLimits.BlockIO.ThrottleWriteIOPSDevice, v)
}
}
return nil
}
|
