-
Notifications
You must be signed in to change notification settings - Fork 0
/
richecker.go
159 lines (137 loc) · 4.07 KB
/
richecker.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
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
package richecker
import (
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/aws/aws-sdk-go/service/elasticache"
"github.com/aws/aws-sdk-go/service/rds"
"github.com/aws/aws-sdk-go/service/redshift"
"log"
"sort"
"time"
)
type ReservedInstance struct {
Service string
Type string
Count int64
End time.Time
}
type ReservedInstances []*ReservedInstance
// Sort Reserved Instance order end date (old is former).
func (ris ReservedInstances) Len() int {
return len(ris)
}
func (ris ReservedInstances) Swap(i, j int) {
ris[i], ris[j] = ris[j], ris[i]
}
func (ris ReservedInstances) Less(i, j int) bool {
return ris[i].End.Before(ris[j].End)
}
func (ri ReservedInstance) Print() {
localtime := ri.End.In(time.Local).Format("2006-01-02")
fmt.Printf("Reserved Instance is almost expiring at %s %-11s %s x %d\n", localtime, ri.Service, ri.Type, ri.Count)
}
func Check(days int) {
expireAt := time.Now().Add(time.Duration(days) * 24 * time.Hour)
sess := session.Must(session.NewSession())
ec2RIs := CheckEC2(sess, expireAt)
for _, ri := range ec2RIs {
ri.Print()
}
rdsRIs := CheckRDS(sess, expireAt)
for _, ri := range rdsRIs {
ri.Print()
}
elastiCacheRIs := CheckElastiCache(sess, expireAt)
for _, ri := range elastiCacheRIs {
ri.Print()
}
redshiftRIs := CheckRedshift(sess, expireAt)
for _, ri := range redshiftRIs {
ri.Print()
}
}
func CheckEC2(sess *session.Session, expireAt time.Time) []*ReservedInstance {
svc := ec2.New(sess)
// filter state=active
params := ec2.DescribeReservedInstancesInput{
Filters: []*ec2.Filter{
{
Name: aws.String("state"),
Values: []*string{aws.String("active")},
},
},
}
activeRIs, err := svc.DescribeReservedInstances(¶ms)
if err != nil {
log.Fatalln("cannot get EC2 RI information.", err)
}
var RIs ReservedInstances
for _, ri := range activeRIs.ReservedInstances {
if ri.End.Before(expireAt) {
RIs = append(RIs, &ReservedInstance{"EC2", *ri.InstanceType, *ri.InstanceCount, *ri.End})
}
}
sort.Sort(RIs)
return RIs
}
func CheckRDS(sess *session.Session, expireAt time.Time) []*ReservedInstance {
svc := rds.New(sess)
// RDS could not filter.
// https://godoc.org/github.com/aws/aws-sdk-go/service/rds#DescribeReservedDBInstancesInput
params := rds.DescribeReservedDBInstancesInput{}
activeRIs, err := svc.DescribeReservedDBInstances(¶ms)
if err != nil {
log.Fatalln("cannot get RDS RI information.", err)
}
var RIs ReservedInstances
for _, ri := range activeRIs.ReservedDBInstances {
if *ri.State == "active" {
end := ri.StartTime.Add(time.Duration(*ri.Duration) * time.Second)
if end.Before(expireAt) {
RIs = append(RIs, &ReservedInstance{"RDS", *ri.DBInstanceClass, *ri.DBInstanceCount, end})
}
}
}
sort.Sort(RIs)
return RIs
}
func CheckElastiCache(sess *session.Session, expireAt time.Time) []*ReservedInstance {
svc := elasticache.New(sess)
params := elasticache.DescribeReservedCacheNodesInput{}
activeRIs, err := svc.DescribeReservedCacheNodes(¶ms)
if err != nil {
log.Fatalln("cannot get ElastiCache RI information.", err)
}
var RIs ReservedInstances
for _, ri := range activeRIs.ReservedCacheNodes {
if *ri.State == "active" {
end := ri.StartTime.Add(time.Duration(*ri.Duration) * time.Second)
if end.Before(expireAt) {
RIs = append(RIs, &ReservedInstance{"ElastiCache", *ri.CacheNodeType, *ri.CacheNodeCount, end})
}
}
}
sort.Sort(RIs)
return RIs
}
func CheckRedshift(sess *session.Session, expireAt time.Time) []*ReservedInstance {
svc := redshift.New(sess)
params := redshift.DescribeReservedNodesInput{}
activeRIs, err := svc.DescribeReservedNodes(¶ms)
if err != nil {
log.Fatalln("cannot get RDS RI information.", err)
}
var RIs ReservedInstances
for _, ri := range activeRIs.ReservedNodes {
if *ri.State == "active" {
end := ri.StartTime.Add(time.Duration(*ri.Duration) * time.Second)
if end.Before(expireAt) {
RIs = append(RIs, &ReservedInstance{"Redshift", *ri.NodeType, *ri.NodeCount, end})
}
}
}
sort.Sort(RIs)
return RIs
}