@Override
public String attachVolume(String instanceId, String volumeId, String deviceName) {
IaasProvider iaasInfo = getIaasProvider();
ComputeServiceContext context = iaasInfo.getComputeService().getContext();
String region = ComputeServiceBuilderUtil.extractRegion(iaasInfo);
String zone = ComputeServiceBuilderUtil.extractZone(iaasInfo);
String device = deviceName == null ? "/dev/sdh" : deviceName;
if (region == null || zone == null) {
log.fatal(
"Cannot attach the volume [id]: "
+ volumeId
+ " in the [region] : "
+ region
+ ", [zone] : "
+ zone
+ " of Iaas : "
+ iaasInfo);
return null;
}
ElasticBlockStoreApi blockStoreApi =
context.unwrapApi(AWSEC2Api.class).getElasticBlockStoreApiForRegion(region).get();
Volume.Status volumeStatus = this.getVolumeStatus(blockStoreApi, region, volumeId);
if (log.isDebugEnabled()) {
log.debug("Volume " + volumeId + " is in state " + volumeStatus);
}
while (volumeStatus != Volume.Status.AVAILABLE) {
try {
// TODO Use a proper mechanism to wait till volume becomes available.
Thread.sleep(1000);
volumeStatus = this.getVolumeStatus(blockStoreApi, region, volumeId);
if (log.isDebugEnabled()) {
log.debug(
"Volume " + volumeId + " is still NOT in AVAILABLE. Current State=" + volumeStatus);
}
} catch (InterruptedException e) {
// Ignoring the exception
}
}
if (log.isDebugEnabled()) {
log.debug("Volume " + volumeId + " became AVAILABLE");
}
Attachment attachment =
blockStoreApi.attachVolumeInRegion(region, volumeId, instanceId, device);
if (attachment == null) {
log.fatal(
"Volume [id]: "
+ volumeId
+ " attachment for instance [id]: "
+ instanceId
+ " was unsuccessful. [region] : "
+ region
+ ", [zone] : "
+ zone
+ " of Iaas : "
+ iaasInfo);
return null;
}
log.info(
"Volume [id]: "
+ volumeId
+ " attachment for instance [id]: "
+ instanceId
+ " was successful [status]: "
+ attachment.getStatus().value()
+ ". [region] : "
+ region
+ ", [zone] : "
+ zone
+ " of Iaas : "
+ iaasInfo);
return attachment.getStatus().value();
}
