JarCastingDistributed ANT Extention
This extention to Apache Ant allows really simple remote execution using SSH infrastructure.
Supported tasks
<cluster> task
Maps logical node IDs to real host details.
<cluster>
<basepath>/apps/myapp</basepath>
<server id="server1" host="cbox1.acme.com"/>
<server id="server2" host="cbox2.acme.com"/>
</cluster>
For authentication configuration see Nanocloud SSH configuration details.
<remotely> task
Executes nested tasks on remote node (or nodes) defined by <cluster> task. Wild cards could be used to execute task in parallel accross servers.
<remotely servers="server*">
<echo>This is slave ${slave.id}</echo>
</remotely>
<syncdown> task
Synchronize file systems from master to slave process. This task can only be executed inside of <remotely> task.
<remotely servers="server*">
<echo>This is slave ${slave.id}</echo>
<syncdown sourceBase="target/resources">
<retain>logs/**</retain> <!-- do not remove content of "logs" directory at destination -->
<exclude>**/.mkdir</exclude> <!-- do not copy these files -->
<exclude>**/b.txt</exclude> <!-- do not copy these files -->
<copy rename="b.txt">**/b.txt.v2</copy> <!-- rename file b.txt.v2 into b.txt while copying -->
<copy/> <!-- copy rest of context as is -->
</syncdown>
</remotely>
- rsync like delta compression protocol is used to reduce data transfer.
- destination derectory is clean (equivalent to removing and creating fresh copy).
- optionally certain files could be retained at destination
<urlget>
Similar fetches resource by URL. May use master process as proxy (usefully if slave is in restricted network).
