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
|
package libpod
import (
"fmt"
"github.com/containers/libpod/libpod/events"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
// newEventer returns an eventer that can be used to read/write events
func (r *Runtime) newEventer() (events.Eventer, error) {
options := events.EventerOptions{
EventerType: r.config.Engine.EventsLogger,
LogFilePath: r.config.Engine.EventsLogFilePath,
}
return events.NewEventer(options)
}
// newContainerEvent creates a new event based on a container
func (c *Container) newContainerEvent(status events.Status) {
e := events.NewEvent(status)
e.ID = c.ID()
e.Name = c.Name()
e.Image = c.config.RootfsImageName
e.Type = events.Container
if err := c.runtime.eventer.Write(e); err != nil {
logrus.Errorf("unable to write pod event: %q", err)
}
}
// newContainerExitedEvent creates a new event for a container's death
func (c *Container) newContainerExitedEvent(exitCode int32) {
e := events.NewEvent(events.Exited)
e.ID = c.ID()
e.Name = c.Name()
e.Image = c.config.RootfsImageName
e.Type = events.Container
e.ContainerExitCode = int(exitCode)
if err := c.runtime.eventer.Write(e); err != nil {
logrus.Errorf("unable to write pod event: %q", err)
}
}
// newPodEvent creates a new event for a libpod pod
func (p *Pod) newPodEvent(status events.Status) {
e := events.NewEvent(status)
e.ID = p.ID()
e.Name = p.Name()
e.Type = events.Pod
if err := p.runtime.eventer.Write(e); err != nil {
logrus.Errorf("unable to write pod event: %q", err)
}
}
// newSystemEvent creates a new event for libpod as a whole.
func (r *Runtime) newSystemEvent(status events.Status) {
e := events.NewEvent(status)
e.Type = events.System
if err := r.eventer.Write(e); err != nil {
logrus.Errorf("unable to write system event: %q", err)
}
}
// newVolumeEvent creates a new event for a libpod volume
func (v *Volume) newVolumeEvent(status events.Status) {
e := events.NewEvent(status)
e.Name = v.Name()
e.Type = events.Volume
if err := v.runtime.eventer.Write(e); err != nil {
logrus.Errorf("unable to write volume event: %q", err)
}
}
// Events is a wrapper function for everyone to begin tailing the events log
// with options
func (r *Runtime) Events(options events.ReadOptions) error {
eventer, err := r.newEventer()
if err != nil {
return err
}
return eventer.Read(options)
}
// GetEvents reads the event log and returns events based on input filters
func (r *Runtime) GetEvents(filters []string) ([]*events.Event, error) {
var readErr error
eventChannel := make(chan *events.Event)
options := events.ReadOptions{
EventChannel: eventChannel,
Filters: filters,
FromStart: true,
Stream: false,
}
eventer, err := r.newEventer()
if err != nil {
return nil, err
}
go func() {
readErr = eventer.Read(options)
}()
if readErr != nil {
return nil, readErr
}
logEvents := make([]*events.Event, 0, len(eventChannel))
for e := range eventChannel {
logEvents = append(logEvents, e)
}
return logEvents, nil
}
// GetLastContainerEvent takes a container name or ID and an event status and returns
// the last occurrence of the container event
func (r *Runtime) GetLastContainerEvent(nameOrID string, containerEvent events.Status) (*events.Event, error) {
// check to make sure the event.Status is valid
if _, err := events.StringToStatus(containerEvent.String()); err != nil {
return nil, err
}
filters := []string{
fmt.Sprintf("container=%s", nameOrID),
fmt.Sprintf("event=%s", containerEvent),
"type=container",
}
containerEvents, err := r.GetEvents(filters)
if err != nil {
return nil, err
}
if len(containerEvents) < 1 {
return nil, errors.Wrapf(events.ErrEventNotFound, "%s not found", containerEvent.String())
}
// return the last element in the slice
return containerEvents[len(containerEvents)-1], nil
}
|
