/
registration.go
82 lines (66 loc) · 2.07 KB
/
registration.go
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// Package agent is provides types and functions to perform registration with SSM
package agent
import (
"time"
"k8s.io/klog/v2"
"github.com/aws/amazon-eks-connector/pkg/config"
"github.com/aws/amazon-eks-connector/pkg/ssm"
"github.com/aws/amazon-eks-connector/pkg/state"
)
const (
// format as expected by ssm agent - https://github.com/aws/amazon-ssm-agent/blob/897de484b0bb35d6327d66d9f5d7308b3585d7cc/agent/managedInstances/registration/instance_info.go#L51
defaultDateStringFormat = "2006-01-02 15:04:05.999999999 -0700 MST"
)
type Registration interface {
Register() (*state.State, error)
}
type ssmRegistration struct {
ssm ssm.Client
activationConfig *config.ActivationConfig
}
func NewRegistration(ssmService ssm.Client, activationConfig *config.ActivationConfig) Registration {
return &ssmRegistration{
ssm: ssmService,
activationConfig: activationConfig,
}
}
func (r *ssmRegistration) Register() (*state.State, error) {
state := &state.State{}
klog.Infof("creating %s keypair...", KeyType)
keyPair, err := createKeypair()
if err != nil {
return nil, err
}
klog.Infof("encoding %s keypair...", KeyType)
privateKey := keyPair.encodePrivateKey()
publicKey, err := keyPair.encodePublicKey()
if err != nil {
return nil, err
}
klog.Infof("generating fingerprint...")
fingerPrint, err := createFingerPrint()
if err != nil {
return nil, err
}
klog.Infof("fingerprint %s generated", fingerPrint)
klog.Infof("registering at SSM with activationId %s...", r.activationConfig.ID)
instanceID, err := r.ssm.RegisterManagedInstance(
r.activationConfig.ID,
r.activationConfig.Code,
publicKey,
KeyType,
fingerPrint,
)
if err != nil {
return nil, err
}
klog.Infof("successfully registered at SSM with InstanceID %s", instanceID)
state.PrivateKey = privateKey
state.PrivateKeyType = KeyType
state.PrivateKeyCreatedDate = time.Now().Format(defaultDateStringFormat)
state.FingerPrint = fingerPrint
state.InstanceID = instanceID
state.Region = r.ssm.Region()
state.ActivationId = r.activationConfig.ID
return state, nil
}