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qemu: Pass sandboxID to agent for logging purposes

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Add a kernel command-line option that the agent can read to determine
the sandbox ID of the VM. It can use this to create a `sandbox=` log
field for improved log analysis.

Fixes #465.

Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
This commit is contained in:
James O. D. Hunt 2018-07-04 13:43:05 +01:00
parent bf1cf684f5
commit 793a22083c
1 changed files with 5 additions and 1 deletions
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6
virtcontainers/qemu.go
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@ -297,10 +297,14 @@ func (q *qemu) createSandbox(sandboxConfig SandboxConfig) error {
return err return err
} }
// Pass the sandbox name to the agent via the kernel command-line to
// allow the agent to use it in log messages.
params := q.kernelParameters() + " " + "agent.sandbox=" + sandboxConfig.ID
kernel := govmmQemu.Kernel{ kernel := govmmQemu.Kernel{
Path: kernelPath, Path: kernelPath,
InitrdPath: initrdPath, InitrdPath: initrdPath,
Params: q.kernelParameters(), Params: params,
} }
rtc := govmmQemu.RTC{ rtc := govmmQemu.RTC{