Get full process dump results
This subcommand will run coredump tool for running in k8s application. Result will be saved locally (or on host) so you'll be able to analyze it with appropriate instruments. Tool specific additional arguments are also supported. You can find more info about this tool by the following links:
* https://docs.microsoft.com/en-us/dotnet/core/diagnostics/debug-linux-dumps#core-dumps-with-createdump
* https://github.com/dotnet/runtime/blob/main/docs/design/coreclr/botr/xplat-minidump-generation.md
kubectl-shovel coredump [flags]
The only required flag is `--pod-name`. So you can use it like this:
kubectl shovel coredump --pod-name my-app-65c4fc589c-gznql
Use `-o`/`--output` to define name of dump file:
kubectl shovel coredump --pod-name my-app-65c4fc589c-gznql -o ./myapp.coredump
Also use `-n`/`--namespace` if your pod is not in current context's namespace:
kubectl shovel coredump --pod-name my-app-65c4fc589c-gznql -n default
--as string Username to impersonate for the operation. User could be a regular user or a service account in a namespace.
--as-group stringArray Group to impersonate for the operation, this flag can be repeated to specify multiple groups.
--as-uid string UID to impersonate for the operation.
--cache-dir string Default cache directory (default "/home/user/.kube/cache")
--certificate-authority string Path to a cert file for the certificate authority
--client-certificate string Path to a client certificate file for TLS
--client-key string Path to a client key file for TLS
--cluster string The name of the kubeconfig cluster to use
-c, --container string Target container in pod. Required if pod run multiple containers
--context string The name of the kubeconfig context to use
-h, --help help for coredump
--image string Image of dumper to use for job (default "dodopizza/kubectl-shovel-dumper:undefined")
--insecure-skip-tls-verify If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure
--kubeconfig string Path to the kubeconfig file to use for CLI requests.
-n, --namespace string If present, the namespace scope for this CLI request
-o, --output string Output file (default "./output.coredump")
--output-host-path string Host folder, where will be stored artifact (default "/tmp/kubectl-shovel")
--pod-name string Target pod
-p, --process-id int The process ID to collect the trace from (default 1)
--request-timeout string The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests. (default "0")
-s, --server string The address and port of the Kubernetes API server
-t, --store-output-on-host Store output on node instead of downloading it locally
--tls-server-name string Server name to use for server certificate validation. If it is not provided, the hostname used to contact the server is used
--token string Bearer token for authentication to the API server
--type type The kinds of information that are collected from process. Supported types:
Full, Heap, Mini, Triage
Full - A full core dump with all process memory
Heap - A process dump with heap
Mini - A normal minidump with some process information
Triage - A small dump containing minimal information (default Full)
--user string The name of the kubeconfig user to use
- kubectl-shovel - Get diagnostics from running in k8s dotnet application