103 lines
3.2 KiB
Go
103 lines
3.2 KiB
Go
package mtdaws
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/aws/aws-sdk-go-v2/aws"
|
|
"github.com/aws/aws-sdk-go-v2/config"
|
|
"github.com/aws/aws-sdk-go-v2/service/ec2"
|
|
"github.com/aws/aws-sdk-go-v2/service/ec2/types"
|
|
"github.com/thefeli73/polemos/state"
|
|
)
|
|
|
|
// AwsInstance is basic info about a single aws instance (instance id, redion, pubIP and privIP)
|
|
type AwsInstance struct {
|
|
InstanceID string
|
|
Region string
|
|
PublicIP string
|
|
PrivateIP string
|
|
}
|
|
|
|
// NewConfig creates a AWS config for a specific region
|
|
func NewConfig(region string, credentials string) aws.Config {
|
|
cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithSharedConfigFiles([]string{credentials}), config.WithRegion(region))
|
|
if err != nil {
|
|
fmt.Println("Error creating config:", err)
|
|
fmt.Println("Configure Credentials in line with the documentation found here: https://aws.github.io/aws-sdk-go-v2/docs/configuring-sdk/#specifying-credentials")
|
|
os.Exit(1)
|
|
}
|
|
return cfg
|
|
}
|
|
|
|
// GetCloudID returns a string to find the instance based on information from aws
|
|
func GetCloudID(instance AwsInstance) string {
|
|
return "aws_" + instance.Region + "_" + instance.InstanceID
|
|
}
|
|
|
|
// GetInstances scans all configured regions for instances and add them to services
|
|
func GetInstances(config state.Config) []AwsInstance {
|
|
awsInstances := []AwsInstance{}
|
|
for _, region := range config.AWS.Regions {
|
|
awsConfig := NewConfig(region, config.AWS.CredentialsPath)
|
|
instances, err := Instances(awsConfig)
|
|
if err != nil {
|
|
fmt.Println("Error listing instances:", err)
|
|
continue
|
|
}
|
|
|
|
//fmt.Println("Listing instances in region:", region)
|
|
for _, instance := range instances {
|
|
var publicAddr string
|
|
if instance.PublicIpAddress != nil {
|
|
publicAddr = aws.ToString(instance.PublicIpAddress)
|
|
}
|
|
awsInstances = append(awsInstances, AwsInstance{
|
|
InstanceID: aws.ToString(instance.InstanceId),
|
|
Region: region,
|
|
PublicIP: publicAddr,
|
|
PrivateIP: aws.ToString(instance.PrivateIpAddress)})
|
|
}
|
|
}
|
|
return awsInstances
|
|
}
|
|
|
|
// PrintInstanceInfo prints info about a specific instance in a region
|
|
func PrintInstanceInfo(instance *types.Instance) {
|
|
fmt.Println("\tInstance ID:", aws.ToString(instance.InstanceId))
|
|
fmt.Println("\t\tInstance Type:", string(instance.InstanceType))
|
|
fmt.Println("\t\tAMI ID:", aws.ToString(instance.ImageId))
|
|
fmt.Println("\t\tState:", string(instance.State.Name))
|
|
fmt.Println("\t\tAvailability Zone:", aws.ToString(instance.Placement.AvailabilityZone))
|
|
if instance.PublicIpAddress != nil {
|
|
fmt.Println("\t\tPublic IP Address:", aws.ToString(instance.PublicIpAddress))
|
|
}
|
|
fmt.Println("\t\tPrivate IP Address:", aws.ToString(instance.PrivateIpAddress))
|
|
}
|
|
|
|
// Instances returns all instances for a config i.e. a region
|
|
func Instances(config aws.Config) ([]*types.Instance, error) {
|
|
svc := ec2.NewFromConfig(config)
|
|
|
|
input := &ec2.DescribeInstancesInput{}
|
|
var instances []*types.Instance
|
|
|
|
paginator := ec2.NewDescribeInstancesPaginator(svc, input)
|
|
|
|
for paginator.HasMorePages() {
|
|
page, err := paginator.NextPage(context.TODO())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for _, reservation := range page.Reservations {
|
|
for _, instance := range reservation.Instances {
|
|
instances = append(instances, &instance)
|
|
}
|
|
}
|
|
}
|
|
|
|
return instances, nil
|
|
}
|