If update image, will send asynchronous request to engine. If some
error happened during update, engine will rollback runtime
automatically.
Change-Id: I1598b1c04427dfdb7d573bbff8dc017f113c2fd2
When a package function is executed, a service url is cached so it's
faster when function is executed again. But this will lead to problem
if function is never executed for a long time.
This patch add an expiry machanism which will release resources in
orchestration platform.
Change-Id: I754ebe314d87f6d7c194d9b9c061316f7ba74245
Invoke a function in sync way means the command will wait until the
execution finish. On the contrary, 'sync=false' means user will get
a response before the function is actually invoked. User could get
execution status using execution ID in the response.
Change-Id: I605ea8414f49d44899e0bc8c36b89e48e335d284
Lingxian Kong