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[troubleshooting] Add ryuk troubleshooting section to README #3298

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[troubleshooting] Add ryuk troubleshooting section to README #3298

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13 changes: 13 additions & 0 deletions README.md
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Expand Up @@ -106,6 +106,19 @@ This issue may be resolved by increasing the total number of keys by executing t
$ echo kernel.keys.maxkeys=1000 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p
```

#### **2.4. Ryuk reaper container fails to start**

Acceptance tests may fail with errors like `No such container` or `unexpected container status "removing"` when the testcontainers' ryuk reaper container cannot access the Docker socket. To diagnose, run ryuk manually in the foreground:
``` bash
$ docker run --rm -v /var/run/docker.sock:/var/run/docker.sock testcontainers/ryuk:0.11.0
```
If the error is `permission denied while trying to connect to the Docker daemon socket`, create or update `~/.testcontainers.properties` with:
```
ryuk.container.privileged=true
```

This tells testcontainers to run the ryuk container with `--privileged`, granting it access to the Docker socket.

#### **3. Apiserver and Rekor Host Resolution Failure**

While running the acceptance tests, you might encounter issues related to apiserver and rekor hosts, like:
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