Capture additional clustermesh-related troubleshooting information as part of sysdumps #2531
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Uniform the file name associated with operator and clustermesh-apiserver metrics, so that they get grouped together when listing the files alphabetically. The format matches the one used for gops stats. Signed-off-by: Marco Iorio <[email protected]>
The same function is used to collect operator metrics as well, hence let's generalize the error message to not reference clustermesh. The information about the failing test is still present as part of the warning message output by the sysdump collection logic. Signed-off-by: Marco Iorio <[email protected]>
The clustermesh-apiserver got recently enriched with a set of debug commands to output the binary version, kvstoremesh connectivity status to the remote clusters and etcd connectivity troubleshooting information. Let's additionally collect all this information as part of the sysdump. Depending on the Cilium version, some of the commands may not exist, and the corresponding data will not be collected. Signed-off-by: Marco Iorio <[email protected]>
Let's collect the gops stats for both the clustermesh and kvstoremesh containers of the clustermesh-apiserver, as useful to investigate possible deadlocks and memory leaks. Signed-off-by: Marco Iorio <[email protected]>
Do not attempt to collect metrics and gops stats if the target pod is not running, or the specified container does not exist. This prevents performing operations that are guaranteed to fail, and output possibly misleading errors. One example being when the clustermesh-apiserver is enabled, but kvstoremesh is not, as all operations targeting the latter will fail. Signed-off-by: Marco Iorio <[email protected]>
Extent the Client implementation introducing a new method which allows to proxy a connection to a TCP port inside a container. This mimics the behavior of the port-forward implementation, but it directly provides access to the forwarded stream (through a ReadWriteCloser interface), rather than exposing it through a local port. Signed-off-by: Marco Iorio <[email protected]>
Let's additionally collect gops profiling data for both the clustermesh and kvstoremesh containers of the clustermesh-apiserver, to enable investigating performance issues. Profiling data is collected proxying a connection to the remote gops server, to avoid relying on the gops client. Indeed, it would then save the result to a temporary directory, and we cannot easily retrieve it given that the target is a distroless image lacking shell tools. Signed-off-by: Marco Iorio <[email protected]>
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Introduce the collection of additional clustermesh-related information as part of sysdumps, and in particular:
Related: cilium/cilium#32165, cilium/cilium#32156, cilium/cilium#32336
Please review commit by commit, and refer to the respective messages for additional information.