/
tasks.go
85 lines (69 loc) · 1.82 KB
/
tasks.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
package fargate
import (
"fmt"
"github.com/aws/aws-sdk-go/service/ecs"
log "github.com/sirupsen/logrus"
)
const (
describeTasksWindowSize = 100
)
func (p Provider) listTasks(cluster string) (map[string][]*ecs.Task, error) {
tasks := map[string][]*ecs.Task{}
taskArns, err := p.listTaskArns(cluster)
if err != nil {
return nil, err
}
err = sliceWalk(describeTasksWindowSize, taskArns, func(ids []*string) error {
arg := &ecs.DescribeTasksInput{Tasks: ids}
if cluster != "" {
arg.Cluster = &cluster
}
out, err := p.Client.DescribeTasks(arg)
if err != nil {
return fmt.Errorf("failed to load task instance data: %s", err.Error())
}
for _, f := range out.Failures {
log.Warnf("%s: %s", *f.Arn, *f.Reason)
}
for _, t := range out.Tasks {
if tasks[*t.TaskDefinitionArn] == nil {
tasks[*t.TaskDefinitionArn] = []*ecs.Task{}
}
tasks[*t.TaskDefinitionArn] = append(tasks[*t.TaskDefinitionArn], t)
}
return nil
})
if err != nil {
return nil, err
}
return tasks, nil
}
func (p Provider) listTaskArns(cluster string) ([]*string, error) {
arg := &ecs.ListTasksInput{Cluster: &cluster}
tasks := []*string{}
moreTasks := true
for moreTasks {
out, err := p.Client.ListTasks(arg)
if err != nil {
return nil, err
}
tasks = append(tasks, out.TaskArns...)
arg.NextToken = out.NextToken
moreTasks = arg.NextToken != nil
}
return tasks, nil
}
func (p Provider) getTaskDefinitions(arns []string) (map[string]*ecs.TaskDefinition, error) {
taskDefs := make(map[string]*ecs.TaskDefinition)
arg := &ecs.DescribeTaskDefinitionInput{}
for _, arn := range arns {
arg.TaskDefinition = &arn
out, err := p.Client.DescribeTaskDefinition(arg)
if err != nil {
log.Warnf("faild to load task def %s: %s", arn, err)
continue
}
taskDefs[arn] = out.TaskDefinition
}
return taskDefs, nil
}