Istio node-agent log Level for SDS service

abhijitherekar · August 29, 2019, 6:51pm

Hello everyone,

I am following the SDS tutorial and was checking out the node-agent code.
Is there a way I can turn on the debug mode for the node-agent.

I am talking about the following code:

github.com

istio/istio/blob/f900de8b38c36ff97a05ff6a9ae60b72652418db/security/pkg/nodeagent/sds/sdsservice.go#L65


	k8sSAJwtTokenHeaderKey = "istio_sds_credentials_header-bin"
)


var (
	sdsClients       = map[cache.ConnKey]*sdsConnection{}
	staledClientKeys = map[cache.ConnKey]bool{}
	sdsClientsMutex  sync.RWMutex


	// Tracks connections, increment on each new connection.
	connectionNumber = int64(0)
	sdsServiceLog    = log.RegisterScope("sdsServiceLog", "SDS service debugging", 0)
)


type discoveryStream interface {
	Send(*xdsapi.DiscoveryResponse) error
	Recv() (*xdsapi.DiscoveryRequest, error)
	grpc.ServerStream
}


// sdsEvent represents a secret event that results in a push.
type sdsEvent struct{}

Please, let me know how to turn the debug mode for the node-agent.

philliple · August 30, 2019, 8:48pm

You can do a port-forwarding on port 9876.

deyang · November 1, 2019, 4:49pm

can you provide the details?

philliple · November 6, 2019, 9:59pm

You can do something like

kube port-foward <node-agent-pod> 9876 -n istio-system, then go to localhost:9876/scopez on your machine and change the logging level.

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Istio node-agent log Level for SDS service

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