Fix 'content is not allowed in prolog'

Switch order of probing the virtualizerconfigs to bypass xml parsing of
docker configs which are tgz-archives.

We have no good handling of the different config types. VBox and Qemu
are xml, vmware is plaintext, docker wraps everything in tgz. Instead
of checking we actually just try and hope for the best :(.

fixes: #3932

2 files changed, 6 insertions, 6 deletions

diff --git a/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfiguration.java b/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfiguration.java
index d3b0191..c1895bf 100644
--- a/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfiguration.java
+++ b/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfiguration.java
@@ -249,6 +249,11 @@ public abstract class VirtualizationConfiguration
 			LOGGER.debug( "Not a VMware file", e );
 		}
 		try {
+			return new VirtualizationConfigurationDocker( osList, vmContent, length );
+		} catch ( VirtualizationConfigurationException e ) {
+			LOGGER.debug( "Not a tar.gz file, for docker container", e );
+		}
+		try {
 			return new VirtualizationConfigurationVirtualBox( osList, vmContent, length );
 		} catch ( VirtualizationConfigurationException e ) {
 			LOGGER.debug( "Not a VirtualBox file", e );
@@ -258,11 +263,6 @@ public abstract class VirtualizationConfiguration
 		} catch ( VirtualizationConfigurationException e ) {
 			LOGGER.debug( "Not a Libvirt file", e );
 		}
-		try {
-			return new VirtualizationConfigurationDocker( osList, vmContent, length );
-		} catch ( VirtualizationConfigurationException e ) {
-			LOGGER.debug( "Not a tar.gz file, for docker container", e );
-		}
 		throw new VirtualizationConfigurationException( "Unknown virtualizer config format" );
 	}
 
diff --git a/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfigurationDocker.java b/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfigurationDocker.java
index 9dfa0a6..8a06b80 100644
--- a/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfigurationDocker.java
+++ b/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfigurationDocker.java
@@ -75,7 +75,7 @@ public class VirtualizationConfigurationDocker extends VirtualizationConfigurati
 	 */
 	private void checkIsTarGz() throws VirtualizationConfigurationException {
 		if (!((31 == containerDefinition[0]) && (-117 == containerDefinition[1]))) {
-			LOGGER.warn("Not Supported Content.");
+			LOGGER.debug("Not Supported Content.");
 			throw new VirtualizationConfigurationException(
 					"DockerMetaDataDummy: Not tar.gz encoded content!");
 		}