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docs: docker memory is optional for iol-runner nodes

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0 (the default) passes through as Docker's no-limit; the IOL-memory+512
guidance only applies when a cap is set.
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YueGuobin 2026-08-30 14:22:10 +08:00
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docs/features/iol-runner-docker.md
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@ -101,7 +101,7 @@ API docs for the auth flow), or in the Web UI under
|---|---|---|
| `environment` | `GNS3_IOL_RUNNER=1` | The switch that selects `IOLDockerVM` (skip-init, unix-socket NIO, auto volumes). Optional: `GNS3_IOL_MEMORY=<MB>` (default 2048). |
| `extra_volumes` | `["/config"]` | `/tmp/run` is auto-added. **Never add `/tmp`** — it would persist the socket directory into the projects tree and uBridge would reject the too-long AF_UNIX path. |
| `memory` | IOL memory + ~512 MB | Caps the whole container; below that the OOM-killer shoots the router. |
| `memory` | optional; `0` (default) = no cap | Unset works — Docker applies no limit. When you do set a cap, keep it at IOL memory + ~512 MB, or the cgroup OOM-killer shoots the router. |
| `console_type` | `telnet` | The runner muxes the IOS console onto PID 1 stdio; `docker_exec` is not needed. |
| `adapters` | multiple of 4 | IOL port granularity; interfaces are `Ethernet0/0`-style. |