Well Yes and No. The full Teiid Server runs inside the JBoss AS server. However, in Teiid 8.1 cycle, an Embedded version of Teiid is being developed. See https://issues.jboss.org/browse/TEIID-2062. Using this you deploy Teiid under any VM of your choice. Note that when using the Embedded Teiid, the burden is on the user to connections to the sources and defining the VDBs etc, and many server based features may not be available. If you download the latest code, and build it using the command
mvn install -P release
you will see a Teiid Embedded kit inside the "build/target" directory. There is an example in there you can follow to how this can be achieved.