User: If no user is specified in the template options when launching instances, the default one will be used: “jclouds” for all instances, “core” for CoreOS images, and “Administrator” for Windows images.
GCE uses exclusively ssh keys to login into instances. In order for an instance to be sshable a public key must be installed. Public keys are installed if they are present in the project or instance's metatada.
For an instance to be ssable one of the following must happen: 1 - the project's metadata has an adequately built “sshKeys” entry and a corresponding private key is provided in GoogleComputeEngineTemplateOptions when createNodesInGroup is called. 2 - an instance of GoogleComputeEngineTemplateOptions with an adequate public and private key is provided.
NOTE: if methods 2 is chosen the global project keys will not be installed in the instance.
Please refer to Google's documentation on how to form valid project wide ssh keys metadata entries.
A. the identity is the developer email which can be obtained from the admin GUI. Its usually something in the form: PROJECT_ID@developer.gserviceaccount.com
A. the credential is a private key, in pem format. It can be extracted from the p12 keystore that is obtained when creating a “Service Account” (in the GUI: Google apis console > Api Access > Create another client ID > “Service Account”
Convert the p12 file into pem format (it will ask for the keystore password, which is usually “notasecret”): openssl pkcs12 -in <my_keystore>.p12 -out <my_keystore>.pem -nodes
Extract only the pk and remove passphrase openssl rsa -in <my_keystore>.pem -out <my_key>.pem
The last file (<my_key>.pem) should contain the pk that needs to be passed to
ContextBuilder.credential() for the provider
<test.google-compute-engine.identity>PROJECT_ID@developer.gserviceaccount.com</test.google-compute-engine.identity> <test.google-compute-engine.credential>-----BEGIN RSA PRIVATE KEY----- MIICXgIBAAKBgQRRbRqVDtJLN1MO/xJoKqZuphDeBh5jIKueW3aNIiWs1XFcct+h -- this text is literally from your <my_key>.pem aH7xmpHSTbbXmQkuuv+z8EKijigprd/FoJpTX1f5/R+4wQ== -----END RSA PRIVATE KEY-----</test.google-compute-engine.credential> </properties>
Or, if using an existing OAuth Bearer Token for authentication.
<test.google-compute-engine.identity>PROJECT_ID@developer.gserviceaccount.com</test.google-compute-engine.identity> <test.google-compute-engine.credential>EXISTING_BEARER_TOKEN</test.google-compute-engine.credential> <test.jclouds.oauth.credential-type>bearerTokenCredentials</test.jclouds.oauth.credential-type> </properties>