forked from kubernetes/kubernetes
-
Notifications
You must be signed in to change notification settings - Fork 0
/
convert.go
134 lines (118 loc) · 3.79 KB
/
convert.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
/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package dockershim
import (
"fmt"
"strings"
"time"
dockertypes "github.com/docker/engine-api/types"
runtimeApi "k8s.io/kubernetes/pkg/kubelet/api/v1alpha1/runtime"
)
// This file contains helper functions to convert docker API types to runtime
// API types, or vice versa.
const (
// Status of a container returned by docker ListContainers
statusRunningPrefix = "Up"
statusCreatedPrefix = "Created"
statusExitedPrefix = "Exited"
)
func toRuntimeAPIImage(image *dockertypes.Image) (*runtimeApi.Image, error) {
if image == nil {
return nil, fmt.Errorf("unable to convert a nil pointer to a runtime API image")
}
size := uint64(image.VirtualSize)
return &runtimeApi.Image{
Id: &image.ID,
RepoTags: image.RepoTags,
RepoDigests: image.RepoDigests,
Size_: &size,
}, nil
}
func toRuntimeAPIContainer(c *dockertypes.Container) (*runtimeApi.Container, error) {
state := toRuntimeAPIContainerState(c.Status)
metadata, err := parseContainerName(c.Names[0])
if err != nil {
return nil, err
}
labels, annotations := extractLabels(c.Labels)
sandboxID := c.Labels[sandboxIDLabelKey]
// The timestamp in dockertypes.Container is in seconds.
createdAt := c.Created * int64(time.Second)
return &runtimeApi.Container{
Id: &c.ID,
PodSandboxId: &sandboxID,
Metadata: metadata,
Image: &runtimeApi.ImageSpec{Image: &c.Image},
ImageRef: &c.ImageID,
State: &state,
CreatedAt: &createdAt,
Labels: labels,
Annotations: annotations,
}, nil
}
func toDockerContainerStatus(state runtimeApi.ContainerState) string {
switch state {
case runtimeApi.ContainerState_CREATED:
return "created"
case runtimeApi.ContainerState_RUNNING:
return "running"
case runtimeApi.ContainerState_EXITED:
return "exited"
case runtimeApi.ContainerState_UNKNOWN:
fallthrough
default:
return "unknown"
}
}
func toRuntimeAPIContainerState(state string) runtimeApi.ContainerState {
// Parse the state string in dockertypes.Container. This could break when
// we upgrade docker.
switch {
case strings.HasPrefix(state, statusRunningPrefix):
return runtimeApi.ContainerState_RUNNING
case strings.HasPrefix(state, statusExitedPrefix):
return runtimeApi.ContainerState_EXITED
case strings.HasPrefix(state, statusCreatedPrefix):
return runtimeApi.ContainerState_CREATED
default:
return runtimeApi.ContainerState_UNKNOWN
}
}
func toRuntimeAPISandboxState(state string) runtimeApi.PodSandBoxState {
// Parse the state string in dockertypes.Container. This could break when
// we upgrade docker.
switch {
case strings.HasPrefix(state, statusRunningPrefix):
return runtimeApi.PodSandBoxState_READY
default:
return runtimeApi.PodSandBoxState_NOTREADY
}
}
func toRuntimeAPISandbox(c *dockertypes.Container) (*runtimeApi.PodSandbox, error) {
state := toRuntimeAPISandboxState(c.Status)
metadata, err := parseSandboxName(c.Names[0])
if err != nil {
return nil, err
}
labels, annotations := extractLabels(c.Labels)
// The timestamp in dockertypes.Container is in seconds.
createdAt := c.Created * int64(time.Second)
return &runtimeApi.PodSandbox{
Id: &c.ID,
Metadata: metadata,
State: &state,
CreatedAt: &createdAt,
Labels: labels,
Annotations: annotations,
}, nil
}