forked from cloudfoundry/bosh-bootloader
/
keypair_synchronizer.go
51 lines (41 loc) · 1.13 KB
/
keypair_synchronizer.go
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package ec2
type KeyPairSynchronizer struct {
creator keypairCreator
checker keypairChecker
logger logger
}
type keypairCreator interface {
Create(keyPairName string) (KeyPair, error)
}
type keypairChecker interface {
HasKeyPair(keypairName string) (bool, error)
}
type logger interface {
Step(message string, a ...interface{})
}
func NewKeyPairSynchronizer(creator keypairCreator, checker keypairChecker, logger logger) KeyPairSynchronizer {
return KeyPairSynchronizer{
creator: creator,
checker: checker,
logger: logger,
}
}
func (k KeyPairSynchronizer) Sync(keyPair KeyPair) (KeyPair, error) {
hasLocalKeyPair := len(keyPair.PublicKey) != 0 || len(keyPair.PrivateKey) != 0
k.logger.Step("checking if keypair %q exists", keyPair.Name)
hasRemoteKeyPair, err := k.checker.HasKeyPair(keyPair.Name)
if err != nil {
return KeyPair{}, err
}
if !hasLocalKeyPair || !hasRemoteKeyPair {
keyPairName := keyPair.Name
k.logger.Step("creating keypair")
keyPair, err = k.creator.Create(keyPairName)
if err != nil {
return KeyPair{}, err
}
} else {
k.logger.Step("using existing keypair")
}
return keyPair, nil
}