polemos/mtdaws/sdk.go

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package mtdaws
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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"
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"github.com/google/uuid"
"github.com/thefeli73/polemos/state"
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)
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// NewConfig creates a AWS config for a specific region
func NewConfig(region string, credentials string) aws.Config {
// Create a new AWS config
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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
}
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// IndexInstances scans all configured regions for instances and add them to services
func IndexInstances(config state.Config) {
for _, region := range config.AWS.Regions {
//fmt.Println("Listing instances in region:", region)
awsConfig := NewConfig(region, config.AWS.CredentialsPath)
instances, err := Instances(awsConfig)
if err != nil {
fmt.Println("Error listing instances:", err)
continue
}
for _, instance := range instances {
InstanceInfo(awsConfig, *instance.InstanceId)
u := uuid.New()
_ = u
}
}
}
// InstanceInfo collects info about a specific instance in a region
func InstanceInfo(config aws.Config, instanceID string) {
// Create a new EC2 service client
svc := ec2.NewFromConfig(config)
input := &ec2.DescribeInstancesInput{
InstanceIds: []string{instanceID},
}
result, err := svc.DescribeInstances(context.TODO(), input)
if err != nil {
fmt.Println("Error describing instance:", err)
return
}
// Print instance information
instance := result.Reservations[0].Instances[0]
fmt.Println("Instance ID:", aws.ToString(instance.InstanceId))
fmt.Println("Instance Type:", string(instance.InstanceType))
fmt.Println("AMI ID:", aws.ToString(instance.ImageId))
fmt.Println("State:", string(instance.State.Name))
fmt.Println("Availability Zone:", aws.ToString(instance.Placement.AvailabilityZone))
if instance.PublicIpAddress != nil {
fmt.Println("Public IP Address:", aws.ToString(instance.PublicIpAddress))
}
fmt.Println("Private IP Address:", aws.ToString(instance.PrivateIpAddress))
}
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// 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
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}