remove old image and snapshot, formatting
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parent
7bd42bc569
commit
65d815aa8b
4
main.go
4
main.go
@ -45,12 +45,12 @@ func indexAllInstances(config state.Config) state.Config {
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cloudID := mtdaws.GetCloudID(instance)
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ip, err := netip.ParseAddr(instance.PublicIP)
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if err != nil {
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fmt.Println("Error converting ip:", err)
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fmt.Println("Error converting ip:\t", err)
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continue
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}
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newService, found := indexInstance(config, cloudID, ip)
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if !found {
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fmt.Println("New instance found:", newService.CloudID)
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fmt.Println("New instance found:\t", newService.CloudID)
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config.MTD.Services = append(config.MTD.Services, newService)
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state.SaveConf(ConfigPath, config)
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awsNewInstanceCounter++
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@ -4,6 +4,7 @@ import (
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"fmt"
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"time"
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"github.com/aws/aws-sdk-go-v2/aws"
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"github.com/aws/aws-sdk-go-v2/service/ec2"
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"github.com/thefeli73/polemos/state"
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)
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@ -17,38 +18,60 @@ func AWSMoveInstance(config state.Config) (state.Config) {
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realInstance, err := getInstanceDetailsFromString(svc, instanceID)
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if err != nil {
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fmt.Println("Error getting instance details:", err)
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fmt.Println("Error getting instance details:\t", err)
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return config
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}
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imageName, err := createImage(svc, instanceID)
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if err != nil {
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fmt.Println("Error creating image:", err)
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fmt.Println("Error creating image:\t", err)
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return config
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}
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fmt.Println("Created image: ", imageName)
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fmt.Println("Created image:\t", imageName)
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err = waitForImageReady(svc, imageName, 5*time.Minute)
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if err != nil {
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fmt.Println("Error waiting for image to be ready:", err)
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fmt.Println("Error waiting for image to be ready:\t", err)
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return config
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}
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fmt.Println("Image is ready:", imageName)
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fmt.Println("Image is ready:\t", imageName)
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newInstanceID, err := launchInstance(svc, realInstance, imageName)
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if err != nil {
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fmt.Println("Error launching instance:", err)
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fmt.Println("Error launching instance:\t", err)
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return config
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}
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fmt.Println("Launched new instance:", newInstanceID)
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fmt.Println("Launched new instance:\t", newInstanceID)
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err = terminateInstance(svc, instanceID)
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if err != nil {
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fmt.Println("Error terminating instance:", err)
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fmt.Println("Error terminating instance:\t", err)
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return config
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}
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fmt.Println("Terminated original instance:", instanceID)
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fmt.Println("Terminated old instance:\t", instanceID)
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image, err := describeImage(svc, imageName)
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if err != nil {
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fmt.Println("Error describing image:\t", err)
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return config
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}
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err = deregisterImage(svc, imageName)
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if err != nil {
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fmt.Println("Error deregistering image:\t", err)
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return config
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}
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fmt.Println("Deregistered image:\t", imageName)
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if len(image.BlockDeviceMappings) > 0 {
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snapshotID := aws.ToString(image.BlockDeviceMappings[0].Ebs.SnapshotId)
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err = deleteSnapshot(svc, snapshotID)
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if err != nil {
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fmt.Println("Error deleting snapshot:\t", err)
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return config
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}
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fmt.Println("Deleted snapshot:\t", snapshotID)
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}
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return config
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}
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@ -75,20 +75,6 @@ func GetInstances(config state.Config) []AwsInstance {
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return awsInstances
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}
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// PrintInstanceInfo prints info about a specific instance in a region
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func PrintInstanceInfo(instance *types.Instance) {
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fmt.Println("\tInstance ID:", aws.ToString(instance.InstanceId))
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fmt.Println("\t\tInstance DNS name:", aws.ToString(instance.PublicDnsName))
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fmt.Println("\t\tInstance Type:", string(instance.InstanceType))
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fmt.Println("\t\tAMI ID:", aws.ToString(instance.ImageId))
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fmt.Println("\t\tState:", string(instance.State.Name))
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fmt.Println("\t\tAvailability Zone:", aws.ToString(instance.Placement.AvailabilityZone))
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if instance.PublicIpAddress != nil {
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fmt.Println("\t\tPublic IP Address:", aws.ToString(instance.PublicIpAddress))
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}
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fmt.Println("\t\tPrivate IP Address:", aws.ToString(instance.PrivateIpAddress))
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}
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// Instances returns all instances for a config i.e. a region
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func Instances(config aws.Config) ([]types.Instance, error) {
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svc := ec2.NewFromConfig(config)
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@ -197,6 +183,44 @@ func terminateInstance(svc *ec2.Client, instanceID string) error {
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return err
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}
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// describeImage gets info about an image from string
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func describeImage(svc *ec2.Client, imageID string) (*types.Image, error) {
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input := &ec2.DescribeImagesInput{
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ImageIds: []string{imageID},
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}
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output, err := svc.DescribeImages(context.TODO(), input)
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if err != nil {
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return nil, err
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}
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if len(output.Images) == 0 {
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return nil, errors.New("image not found")
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}
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return &output.Images[0], nil
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}
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// deregisterImage deletes the AMI passed as string
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func deregisterImage(svc *ec2.Client, imageID string) error {
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input := &ec2.DeregisterImageInput{
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ImageId: aws.String(imageID),
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}
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_, err := svc.DeregisterImage(context.TODO(), input)
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return err
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}
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// deleteSnapshot deletes the snapshot passed as string
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func deleteSnapshot(svc *ec2.Client, snapshotID string) error {
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input := &ec2.DeleteSnapshotInput{
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SnapshotId: aws.String(snapshotID),
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}
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_, err := svc.DeleteSnapshot(context.TODO(), input)
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return err
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}
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// getInstanceDetailsFromString does what the name says
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func getInstanceDetailsFromString(svc *ec2.Client, instanceID string) (*types.Instance, error) {
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input := &ec2.DescribeInstancesInput{
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