Fixed logic used to handle static agent tracing.
For a standard (untraced) hypervisor shutdown, the runtime kills the VM
process once the workload has finished. But if static agent tracing is
enabled, the agent running inside the VM is responsible for the
shutdown. The existing code handled this scenario but did not wait for
the hypervisor process to end. The outcome of this being that the
console watcher thread was killed too early.
Although not a problem for an untraced system, if static agent tracing
was enabled, the logs from the hypervisor would be truncated, missing the
crucial final stages of the agents shutdown sequence.
The fix necessitated adding a new parameter to the `stopSandbox()` API,
which if true requests the runtime hypervisor logic simply to wait for
the hypervisor process to exit rather than killing it.
Fixes: #1696.
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
Modify calls in unit tests to use context since many functions were
updated to accept local context to fix trace span ordering.
Fixes#1355
Signed-off-by: Chelsea Mafrica <chelsea.e.mafrica@intel.com>
A significant number of trace calls did not use a parent context that
would create proper span ordering in trace output. Add local context to
functions for use in trace calls to facilitate proper span ordering.
Additionally, change whether trace function returns context in some
functions in virtcontainers and use existing context rather than
background context in bindMount() so that span exists as a child of a
parent span.
Fixes#1355
Signed-off-by: Chelsea Mafrica <chelsea.e.mafrica@intel.com>
Import new console watcher to monitor guest console outputs, and will be
only effective when we turn on enable_debug option.
Guest console outputs may include guest kernel debug info, agent debug info,
etc.
Fixes: #389
Signed-off-by: Penny Zheng penny.zheng@arm.com
With kata containers moving to 2.0, (hybrid-)vsock will be the only
way to directly communicate between host and agent.
And kata-proxy as additional component to handle the multiplexing on
serial port is also no longer needed.
Cleaning up related unit tests, and also add another mock socket type
`MockHybridVSock` to deal with ttrpc-based hybrid-vsock mock server.
Fixes: #389
Signed-off-by: Penny Zheng penny.zheng@arm.com
