chore: consolidate tailing aws logs to use the Go SDK

[edulop91]

We should phase out shelling out to external dependencies and instead directly use Go clients + sdks. One particular example is we have 2 paths for tailing aws logs:

• aws cli --

  happy/pkg/orchestrator/orchestrator.go

  Lines 229 to 255 in bf5541e

  	func (s *Orchestrator) Logs(stackName string, service string, since string) error {
  	// TODO get logs path from ECS instead of generating
  	logPrefix := s.backend.Conf().LogGroupPrefix()
  	logPath := fmt.Sprintf("%s/%s/%s", logPrefix, stackName, service)
  	awsProfile := s.backend.Conf().AwsProfile()
  	regionName := "us-west-2"
  	awsArgs := []string{"aws", "--profile", awsProfile, "--region", regionName, "logs", "tail", "--since", since, "--follow", logPath}
  	awsCmd, err := exec.LookPath("aws")
  	if err != nil {
  	return errors.Wrap(err, "failed to locate the AWS cli")
  	}
  	cmd := &exec.Cmd{
  	Path: awsCmd,
  	Args: awsArgs,
  	Stderr: os.Stderr,
  	Stdout: os.Stdout,
  	}
  	log.Println(cmd)
  	if err := s.executor.Run(cmd); err != nil {
  	return errors.Wrap(err, "failed to get logs from AWS")
  	}
  	return nil
  	}

• go sdk --

  happy/pkg/backend/aws/logs.go

  Lines 1 to 30 in bf5541e

  	package aws
  	import (
  	"context"
  	cwlv2 "github.com/aws/aws-sdk-go-v2/service/cloudwatchlogs"
  	)
  	type GetLogsFunc func(*cwlv2.GetLogEventsOutput, error) error
  	func (b *Backend) getLogs(
  	ctx context.Context,
  	input *cwlv2.GetLogEventsInput,
  	f GetLogsFunc,
  	) error {
  	paginator := cwlv2.NewGetLogEventsPaginator(
  	b.cwlGetLogEventsAPIClient,
  	input,
  	)
  	for paginator.HasMorePages() {
  	err := f(paginator.NextPage(ctx))
  	if isStop(err) {
  	return nil
  	}
  	if err != nil {
  	return err
  	}
  	}
  	return nil
  	}

We should get rid of the aws cli path and replace it with the Go SDK path