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annotations: add Annotations for the agent.

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The annotations handle the tracing config for the agent.

Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
This commit is contained in:
Archana Shinde 2019-09-30 11:10:43 -07:00
parent 5b78a8a0f8
commit 8405b56e6f
2 changed files with 37 additions and 6 deletions
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10
virtcontainers/pkg/annotations/annotations.go
View File

@ -180,6 +180,7 @@ const (
BlockDeviceCacheNoflush = kataAnnotHypervisorPrefix + "block_device_cache_noflush"
)
// Agent related annotations
const (
kataAnnotRuntimePrefix = kataConfAnnotationsPrefix + "runtime."
@ -215,6 +216,15 @@ const (
// The first word is considered as the module name and the rest as its parameters.
//
KernelModules = kataAnnotAgentPrefix + "kernel_modules"
// AgentTrace is a sandbox annotation to enable tracing for the agent.
AgentTrace = kataAnnotAgentPrefix + "enable_tracing"
// AgentTraceMode is a sandbox annotation to specify the trace mode for the agent.
AgentTraceMode = kataAnnotAgentPrefix + "trace_mode"
// AgentTraceMode is a sandbox annotation to specify the trace type for the agent.
AgentTraceType = kataAnnotAgentPrefix + "trace_type"
)
const (

33
virtcontainers/pkg/oci/utils.go
View File

@ -714,14 +714,35 @@ func addRuntimeConfigOverrides(ocispec specs.Spec, sbConfig *vc.SandboxConfig) e
}
func addAgentConfigOverrides(ocispec specs.Spec, config *vc.SandboxConfig) error {
if value, ok := ocispec.Annotations[vcAnnotations.KernelModules]; ok {
if c, ok := config.AgentConfig.(vc.KataAgentConfig); ok {
modules := strings.Split(value, KernelModulesSeparator)
c.KernelModules = modules
config.AgentConfig = c
}
c, ok := config.AgentConfig.(vc.KataAgentConfig)
if !ok {
return nil
}
if value, ok := ocispec.Annotations[vcAnnotations.KernelModules]; ok {
modules := strings.Split(value, KernelModulesSeparator)
c.KernelModules = modules
config.AgentConfig = c
}
if value, ok := ocispec.Annotations[vcAnnotations.AgentTrace]; ok {
trace, err := strconv.ParseBool(value)
if err != nil {
return fmt.Errorf("Error parsing annotation for agent.trace: Please specify boolean value 'true|false'")
}
c.Trace = trace
}
if value, ok := ocispec.Annotations[vcAnnotations.AgentTraceMode]; ok {
c.TraceMode = value
}
if value, ok := ocispec.Annotations[vcAnnotations.AgentTraceType]; ok {
c.TraceType = value
}
config.AgentConfig = c
return nil
}