34 lines
817 B
Markdown
34 lines
817 B
Markdown
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title = "Debugging"
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weight = 120
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+++
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To enable debug and system call logging, add the `runtimeArgs` below to your
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[Docker](../docker/) configuration (`/etc/docker/daemon.json`):
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```json
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{
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"runtimes": {
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"runsc": {
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"path": "/usr/local/bin/runsc",
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"runtimeArgs": [
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"--debug-log=/tmp/runsc/",
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"--debug",
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"--strace"
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]
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}
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}
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}
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```
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You may also want to pass `--log-packets` to troubleshoot network problems. Then
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restart the Docker daemon:
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```bash
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sudo systemctl restart docker
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```
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Run your container again, and inspect the files under `/tmp/runsc`. The log file
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with name `boot` will contain the strace logs from your application, which can
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be useful for identifying missing or broken system calls in gVisor.
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