Examples with GetBlockResource com.emc.sa.service.vipr.block.tasks.GetBlockResource used on opensource projects

Example 1 with GetBlockResource

use of com.emc.sa.service.vipr.block.tasks.GetBlockResource in project coprhd-controller by CoprHD.

the class ComputeUtils method validateBootVolumes.

/**
 * Validate that the boot volume for this host is still on the server.
 * This prevents us from deleting a re-purposed volume that was originally
 * a boot volume.
 *
 * @return true if the volumes are valid, or the volumes are not able to be validated, so we can go ahead anyway.
 */
public static boolean validateBootVolumes(Cluster cluster, List<HostRestRep> hostsToValidate) {
    // the references are fixed.
    if (cluster == null || cluster.getInactive()) {
        ExecutionUtils.currentContext().logError("computeutils.removebootvolumes.failure.cluster");
        return false;
    }
    // so return that the boot volume is valid due to lack of technical ability to dig any deeper.
    if (NullColumnValueGetter.isNullURI(cluster.getVcenterDataCenter())) {
        ExecutionUtils.currentContext().logInfo("computeutils.removebootvolumes.validation.skipped.noVcenterDataCenter", cluster.forDisplay());
        return true;
    }
    VcenterDataCenter dataCenter = execute(new GetVcenterDataCenter(cluster.getVcenterDataCenter()));
    // until that's fixed.
    if (dataCenter == null || dataCenter.getInactive() || NullColumnValueGetter.isNullURI(dataCenter.getVcenter())) {
        ExecutionUtils.currentContext().logError("computeutils.removebootvolumes.failure.datacenter", cluster.forDisplay());
        return false;
    }
    Vcenter vcenter = execute(new GetVcenter(dataCenter.getVcenter()));
    // until that's fixed.
    if (vcenter == null || vcenter.getInactive()) {
        ExecutionUtils.currentContext().logError("computeutils.removebootvolumes.failure.vcenter", cluster.forDisplay());
        return false;
    }
    VMwareSupport vmware = null;
    try {
        vmware = new VMwareSupport();
        vmware.connect(vcenter.getId());
        for (HostRestRep clusterHost : hostsToValidate) {
            Host host = BlockStorageUtils.getHost(clusterHost.getId());
            // Do not validate a host no longer in our database
            if (host == null || host.getInactive()) {
                ExecutionUtils.currentContext().logError("computeutils.removebootvolumes.failure.host", "N/A", "host not found or inactive");
                return false;
            }
            // in the vCenter cluster, and therefore we can not perform a deep validation.
            if (NullColumnValueGetter.isNullURI(host.getVcenterDataCenter())) {
                ExecutionUtils.currentContext().logInfo("computeutils.removebootvolumes.validation.skipped.vcenternotinhost", host.getHostName());
                continue;
            }
            // any update to the host using the hostService automatically adds this association.
            if (!NullColumnValueGetter.isNullURI(host.getVcenterDataCenter()) && host.getType() != null && host.getType().equalsIgnoreCase((Host.HostType.No_OS).name())) {
                ExecutionUtils.currentContext().logInfo("computeutils.removebootvolumes.validation.skipped.noOShost", host.getHostName());
                continue;
            }
            // flag it as an issue.
            if (clusterHost.getBootVolume() == null || NullColumnValueGetter.isNullURI(clusterHost.getBootVolume().getId())) {
                ExecutionUtils.currentContext().logWarn("computeutils.removebootvolumes.failure.host", host.getHostName(), "no boot volume associated with host");
                continue;
            }
            BlockObjectRestRep bootVolume = execute(new GetBlockResource(clusterHost.getBootVolume().getId()));
            // Do not validate an old/non-existent boot volume representation
            if (bootVolume == null || bootVolume.getInactive()) {
                ExecutionUtils.currentContext().logError("computeutils.removebootvolumes.failure.host", host.getHostName(), "boot volume not found or inactive");
                return false;
            }
            HostSystem hostSystem = null;
            try {
                hostSystem = vmware.getHostSystem(dataCenter.getLabel(), clusterHost.getName(), false);
                // we can't perform the validation.
                if (hostSystem == null) {
                    ExecutionUtils.currentContext().logInfo("computeutils.removebootvolumes.validation.skipped.hostnotinvcenter", host.getHostName());
                    continue;
                }
                HostSystemConnectionState connectionState = VMwareUtils.getConnectionState(hostSystem);
                if (connectionState == null || connectionState == HostSystemConnectionState.notResponding || connectionState == HostSystemConnectionState.disconnected) {
                    String exMsg = "Validation of boot volume usage on host %s failed. " + "Validation failed because host is in a disconnected state or not responding state, and therefore cannot be validated. " + "Cannot decommission in current state.  Recommended to either re-connect the host or remove the host from vCenter, " + "run vCenter discovery and address actionable events before attempting decommission of hosts in this cluster.";
                    // will print a boot volume re-purposed error message which is kind of misleading or incorrect reason for the failure.
                    throw new IllegalStateException(String.format(exMsg, host.getHostName()));
                }
            } catch (ExecutionException e) {
                if (e.getCause() instanceof IllegalStateException) {
                    ExecutionUtils.currentContext().logInfo("computeutils.removebootvolumes.validation.skipped.hostnotinvcenter", host.getHostName());
                    continue;
                }
                // If it's anything other than the IllegalStateException, re-throw the base exception
                throw e;
            }
            if (vmware.findScsiDisk(hostSystem, null, bootVolume, false, false) == null) {
                // fail, host can't see its boot volume
                ExecutionUtils.currentContext().logError("computeutils.removebootvolumes.failure.bootvolume", bootVolume.getDeviceLabel(), bootVolume.getWwn());
                return false;
            } else {
                ExecutionUtils.currentContext().logInfo("computeutils.removebootvolumes.validated", host.getHostName(), bootVolume.getDeviceLabel());
            }
        }
    } finally {
        if (vmware != null) {
            vmware.disconnect();
        }
    }
    return true;
}