/
awsfunc.go
101 lines (82 loc) · 1.9 KB
/
awsfunc.go
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package awsfunc
import (
"context"
"fmt"
"os"
"regexp"
log "github.com/sirupsen/logrus"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/service/autoscaling"
"github.com/aws/aws-sdk-go-v2/service/autoscaling/types"
"github.com/aws/aws-sdk-go-v2/service/elasticloadbalancingv2"
)
type AWSsvcs struct {
elbv2 *elasticloadbalancingv2.Client
auto *autoscaling.Client
}
var Logflg bool
func New() *AWSsvcs {
//log.SetFormatter(&log.JSONFormatter{})
log.SetOutput(os.Stdout)
// Only log the warning severity or above.
//fmt.Println("logflg=", Logflg)
if Logflg {
log.SetLevel(log.InfoLevel)
} else {
log.SetLevel(log.WarnLevel)
}
cfg, err := config.LoadDefaultConfig(context.TODO())
if err != nil {
log.Fatalf("unable to load SDK config, %v", err)
}
elbv2 := elasticloadbalancingv2.NewFromConfig(cfg)
auto := autoscaling.NewFromConfig(cfg)
return &AWSsvcs{
elbv2: elbv2,
auto: auto,
}
}
func (a *AWSsvcs) GetAsgsFromTags() []string {
svc := a.auto
param := &autoscaling.DescribeTagsInput{
Filters: []types.Filter{
{
Name: aws.String("value"),
Values: []string{"CdkAlbGrpcStack"},
},
},
}
p := autoscaling.NewDescribeTagsPaginator(svc, param)
r := regexp.MustCompile("CdkAlbGrpcStack")
var i int
asgs := []string{}
for p.HasMorePages() {
i++
page, err := p.NextPage(context.TODO())
if err != nil {
fmt.Println(err)
}
for _, v := range page.Tags {
if r.MatchString(*v.ResourceId) {
log.WithFields(log.Fields{
"asg": aws.ToString(v.ResourceId),
}).Info("A walrus appears")
asgs = append(asgs, aws.ToString(v.ResourceId))
}
}
}
return uniq(asgs)
}
func uniq(data []string) []string {
m := make(map[string]struct{})
// make data to unique
for _, v := range data {
m[v] = struct{}{}
}
uniq := []string{}
for i := range m {
uniq = append(uniq, i)
}
return uniq
}