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package org.openslx.virtualization.configuration;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.List;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.openslx.bwlp.thrift.iface.OperatingSystem;
import org.openslx.virtualization.Version;
import org.openslx.virtualization.virtualizer.VirtualizerDocker;
public class VirtualizationConfigurationDocker extends VirtualizationConfiguration {
/**
* File name extension for Docker virtualization configuration files.
*/
private static final String FILE_NAME_EXTENSION = null;
private static final Logger LOGGER = LogManager.getLogger( VirtualizationConfigurationDocker.class);
/**
* containerDefinition is a serialized tar.gz archive and represents a
* ContainerDefinition. This archive contains a serialized Container Recipe (e.g. Dockerfile)
* and a ContainerMeta witch is serialized as a json file.
* <p>
* See ContainerDefintion in tutor-module (bwsuite).
* <p>
* This field is in vm context the machine description e.g. vmware = vmx.
* This field will be stored in table imageversion.virtualizerconfig
*/
private byte[] containerDefinition;
public VirtualizationConfigurationDocker(List<OperatingSystem> osList, File file) throws VirtualizationConfigurationException {
super(new VirtualizerDocker(), osList);
BufferedInputStream bis = null;
try {
bis = new BufferedInputStream(new FileInputStream(file));
containerDefinition = new byte[(int) file.length()];
bis.read(containerDefinition);
checkIsTarGz();
} catch (IOException | VirtualizationConfigurationException e) {
LOGGER.error("Couldn't read dockerfile", e);
} finally {
try {
bis.close();
} catch ( IOException e ) {
LOGGER.warn( "Could not close the input stream!" );
}
}
}
public VirtualizationConfigurationDocker(List<OperatingSystem> osList, byte[] vmContent, int length)
throws VirtualizationConfigurationException {
super(new VirtualizerDocker(), osList);
containerDefinition = vmContent;
checkIsTarGz();
}
/*
TODO This is just a simple check to prevent the workflow from considering any content as acceptable.
*/
/**
* Checks if the first two bytes of the content identifies a tar.gz archive.
* The first byte is 31 == 0x1f, the second byte has to be -117 == 0x8b.
*
* @throws VirtualizationConfigurationException
*/
private void checkIsTarGz() throws VirtualizationConfigurationException {
if (!((31 == containerDefinition[0]) && (-117 == containerDefinition[1]))) {
LOGGER.debug("Not Supported Content.");
throw new VirtualizationConfigurationException(
"DockerMetaDataDummy: Not tar.gz encoded content!");
}
}
@Override public void transformEditable() throws VirtualizationConfigurationException {
}
@Override
public void transformPrivacy() throws VirtualizationConfigurationException {
}
@Override
public boolean addEmptyHddTemplate() {
return true;
}
@Override public boolean addHddTemplate(File diskImage, String hddMode, String redoDir) {
return true;
}
@Override public boolean addHddTemplate(String diskImagePath, String hddMode, String redoDir) {
return false;
}
@Override public boolean addDefaultNat() {
return true;
}
@Override public void setOs(String vendorOsId) {
}
@Override public boolean addDisplayName(String name) {
return true;
}
@Override public boolean addRam(int mem) {
return true;
}
@Override public void addFloppy(int index, String image, boolean readOnly) {
}
@Override public boolean addCdrom(String image) {
return true;
}
@Override public boolean addCpuCoreCount(int nrOfCores) {
return true;
}
@Override public void setVirtualizerVersion( Version type )
{
}
@Override public Version getVirtualizerVersion()
{
return null;
}
@Override public byte[] getConfigurationAsByteArray() {
return this.containerDefinition;
}
@Override public boolean addEthernet(EtherType type) {
return true;
}
@Override public void transformNonPersistent() throws VirtualizationConfigurationException {
}
@Override public void registerVirtualHW() {
}
@Override
public String getFileNameExtension() {
return VirtualizationConfigurationDocker.FILE_NAME_EXTENSION;
}
@Override
public void validate() throws VirtualizationConfigurationException
{
}
@Override
public void disableUsb()
{
// Not applicable, maybe some day via USBguard?
}
}
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