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88 lines
2.9 KiB
Markdown
88 lines
2.9 KiB
Markdown
# debug daemon (debugd)
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Debugd is a tool we built to allow for shorter iteration cycles during development.
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The debugd gets embedded into OS images at the place where the bootstrapper normally sits.
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Therefore, when a debug image is started, the debugd starts executing instead of the bootstrapper.
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The debugd will then wait for a request from the `cdbg` tool to upload a bootstrapper binary.
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Once the upload is finished debugd will start the bootstrapper.
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Subsequently you can initialize your cluster with `constellation init` as usual.
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## Build cdbg
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```shell
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mkdir -p build
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cmake ..
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make cdbg
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```
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## debugd & cdbg usage
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Before continuing, remeber to [set up](https://docs.edgeless.systems/constellation/getting-started/install#set-up-cloud-credentials) your cloud credentials for the CLI to work.
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With `cdbg` and `yq` installed in your path:
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1. Run `constellation config generate` to create a new default configuration
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2. Locate the latest debugd images by running `(cd internal/versionsapi/cli && go build -o versionsapi . && ./versionsapi latest --ref main --stream debug)`
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3. Modify the `constellation-conf.yaml` to use an image with the debugd already included and add required firewall rules:
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```shell-session
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# Set full reference of cloud provider image name
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export IMAGE_URI=
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```
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```shell-session
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yq -i \
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"(.provider | select(. | has(\"azure\")).azure.image) = \"${IMAGE_URI}\"" \
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constellation-conf.yaml
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yq -i \
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"(.provider | select(. | has(\"gcp\")).gcp.image) = \"${IMAGE_URI}\"" \
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constellation-conf.yaml
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yq -i \
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"(.debugCluster) = true" \
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constellation-conf.yaml
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```
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4. Run `constellation create […]`
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5. Run `./cdbg deploy`
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By default, `cdbg` searches for the bootstrapper in the current path (`./bootstrapper`). You can define a custom path by appending the argument `--bootstrapper <path to bootstrapper>` to `cdbg deploy`.
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6. Run `constellation init […]` as usual
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### Logcollection to Opensearch
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You can enable the logcollection of debugd to send logs to Opensearch.
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On Azure, ensure your user assigned identity has the `Key Vault Secrets User` role assigned on the key vault `opensearch-creds`.
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On AWS, attach the `SecretManagerE2E` policy to your control-plane and worker node role.
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When deploying with cdbg, enable by setting the `logcollect=true` and your name `logcollect.admin=yourname`.
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```shell-session
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./cdbg deploy --info logcollect=true,logcollect.admin=yourname
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# OR
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./cdbg deploy --info logcollect=true --info logcollect.admin=yourname
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```
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Other available fields can be found in [the filed list](/debugd/internal/debugd/logcollector/fields.go)
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For QEMU, the credentials for Opensearch must be parsed via the info flag as well:
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```shell-session
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./cdbg deploy \
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--info logcollect=true \
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--info logcollect.admin=yourname \
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--info qemu.opensearch-pw='xxxxxxx'
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```
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Remember to use single quotes for the password.
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You will also need to increase the memory size of QEMU to 4GB.
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