constellation/debugd/README.md
Malte Poll eab33817fd Update debugd README (#340)
* Update debugd README
* Add command to list available releases

Signed-off-by: Daniel Weiße <dw@edgeless.systems>
Co-authored-by: Daniel Weiße <dw@edgeless.systems>
2022-08-05 12:28:57 +02:00

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# debug daemon (debugd)
## Build cdbg
```shell
mkdir -p build
cmake ..
make cdbg
```
## debugd & cdbg usage
With `cdbg` and `yq` installed in your path:
0. Write the configuration file for cdbg `cdbg-conf.yaml`:
```yaml
cdbg:
authorizedKeys:
- username: my-username
publicKey: ssh-rsa AAAAB…LJuM=
bootstrapperPath: "./bootstrapper"
systemdUnits:
- name: some-custom.service
contents: |-
[Unit]
Description=…
```
1. Run `constellation config generate` to create a new default configuration
2. Locate the latest debugd images for [GCP](#debugd-gcp-image) and [Azure](#debugd-azure-image)
3. Modify the `constellation-conf.yaml` to use an image with the debugd already included and add required firewall rules:
```shell-session
# Set full reference of cloud provider image name
export IMAGE_URI=
```
```shell-session
yq -i \
"(.provider | select(. | has(\"azure\")).azure.image) = \"${IMAGE_URI}\"" \
constellation-conf.yaml
yq -i \
"(.provider | select(. | has(\"gcp\")).gcp.image) = \"${IMAGE_URI}\"" \
constellation-conf.yaml
yq -i \
".ingressFirewall += {
\"name\": \"debugd\",
\"description\": \"debugd default port\",
\"protocol\": \"tcp\",
\"iprange\": \"0.0.0.0/0\",
\"fromport\": 4000,
\"toport\": 0
}" \
constellation-conf.yaml
```
4. Run `constellation create […]`
5. Run `./cdbg deploy`
6. Run `constellation init […]` as usual
### debugd GCP image
For GCP, run the following command to get a list of all constellation debug images, sorted by their creation date:
```shell
gcloud compute images list --filter="family~'constellation-debug-v.+'" --sort-by=creationTimestamp --project constellation-images --uri | sed 's#https://www.googleapis.com/compute/v1/##'
```
The images are grouped by the Constellation release they were built for.
Choose the newest debugd image for your release and copy the full URI.
### debugd Azure Image
Azure debug images are grouped by the Constellation release they were built for.
To get a list of available releases, run the following:
```shell
az sig image-definition list --resource-group constellation-images --gallery-name Constellation_Debug --query "[].name" -o table
```
Run the following command to get a list of all constellation debugd images for release v1.5.0, sorted by their creation date:
```shell
RELEASE=v1.5.0
az sig image-version list --resource-group constellation-images --gallery-name Constellation_Debug --gallery-image-definition ${RELEASE} --query "sort_by([], &publishingProfile.publishedDate)[].id" -o table
```
Choose the newest debugd image and copy the full URI.