Monitoring Secure Containers
Description
The kata events command is used to view the status information of a specified container. The information includes but is not limited to the container memory, CPU, PID, Blkio, hugepage memory, and network information.
Usage
kata-runtime metrics <sandbox id>Prerequisites
sandbox id is an long ID. The container to be queried must be in the running state. Otherwise, the following error message will be displayed: Get "<http://shim/metrics":dial> unix /run/vc/\<id\>/shim-monitor : connect : connection refused
When an annotation specifies a container running within a specific sandbox, attempting to query the container using kata-runtime metrics will fail. Instead, you must query the corresponding sandbox for the container.
This command can be used to query the status of only one sandbox.
Example
$ kata-runtime metrics e2270357d23f9d3dd424011e1e70aa8defb267d813c3d451db58f35aeac97a04
# HELP go_gc_duration_seconds A summary of the pause duration of garbage collection cycles.
# TYPE go_gc_duration_seconds summary
go_gc_duration_seconds{quantile="0"} 2.656e-05
go_gc_duration_seconds{quantile="0.25"} 3.345e-05
go_gc_duration_seconds{quantile="0.5"} 3.778e-05
go_gc_duration_seconds{quantile="0.75"} 4.657e-05
go_gc_duration_seconds{quantile="1"} 0.00023001
go_gc_duration_seconds_sum 0.00898126
go_gc_duration_seconds_count 195
# HELP go_goroutines Number of goroutines that currently exist.
# TYPE go_goroutines gauge
go_goroutines 27
# HELP go_info Information about the Go environment.
# TYPE go_info gauge
go_info{version="go1.17.3"} 1
# HELP kata_hypervisor_netdev Net devices statistics.
# TYPE kata_hypervisor_netdev gauge
kata_hypervisor_netdev{interface="lo",item="recv_bytes"} 0
kata_hypervisor_netdev{interface="lo",item="recv_compressed"} 0
kata_hypervisor_netdev{interface="lo",item="recv_drop"} 0
kata_hypervisor_netdev{interface="lo",item="recv_errs"} 0
kata_hypervisor_netdev{interface="lo",item="recv_fifo"} 0
kata_hypervisor_netdev{interface="lo",item="recv_frame"} 0
kata_hypervisor_netdev{interface="lo",item="recv_multicast"} 0
kata_hypervisor_netdev{interface="lo",item="recv_packets"} 0
kata_hypervisor_netdev{interface="lo",item="sent_bytes"} 0
kata_hypervisor_netdev{interface="lo",item="sent_carrier"} 0
kata_hypervisor_netdev{interface="lo",item="sent_colls"} 0Licensed under the MulanPSL2
J.G.W.A.B. No. 11030102011597