;
};
For more involved debugging and disaster recovery, direct access to the console of a Canton node (participant, sequencer, mediator) might be required. Steps to obtain such access:
Requirements:
* Direct access to the Canton node process
* Canton binary
Once you see the following banner for the console you have successfully gained access
```text theme={"theme":{"light":"github-light","dark":"github-dark"}}
_____ _
/ ____| | |
| | __ _ _ __ | |_ ___ _ __
| | / _` | '_ \| __/ _ \| '_ \
| |___| (_| | | | | || (_) | | | |
\_____\__,_|_| |_|\__\___/|_| |_|
Welcome to Canton!
```
## Participant console
1. Obtain an authentication token as specified in [the Canton authentication docs](/global-synchronizer/reference/security-configuration#configure-api-authentication-and-authorization-with-jwt)
2. Ensure you can access the participant's ports 5001 and 5002
3. Add the configuration to a local file `console.conf`
```
canton {
remote-participants {
participant {
admin-api {
port = 5002
address = localhost
}
ledger-api {
port = 5001
address = localhost
}
token = ""
}
}
features.enable-preview-commands = yes
features.enable-testing-commands = yes
features.enable-repair-commands = yes
}
```
4. Run the docker command
```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
docker run -it --rm --network host -v $(pwd)/console.conf:/app/app.conf |docker_repo_prefix|/canton:|version_literal| --console
```
If you run the participant using the docker compose setup the docker command must be run with the docker network used by the participant. Adjust the configuration to connect to the participant container:
```text theme={"theme":{"light":"github-light","dark":"github-dark"}}
canton {
remote-participants {
participant {
admin-api {
port = 5002
address = participant
}
ledger-api {
port = 5001
address = participant
}
token = ""
}
}
features.enable-preview-commands = yes
features.enable-testing-commands = yes
features.enable-repair-commands = yes
}
```
Running docker with the default network (`splice-validator`):
```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
docker run -it --rm --network splice-validator -v $(pwd)/console.conf:/app/app.conf |docker_repo_prefix|/canton:|version_literal| --console
```
## Sequencer console
1. Ensure you can access the sequencer's ports 5008 and 5009
2. Add the configuration to a local file `console.conf`
```
canton {
remote-sequencers {
sequencer {
public-api {
port = 5008
address = localhost
}
admin-api {
port = 5009
address = localhost
}
}
}
features.enable-preview-commands = yes
features.enable-testing-commands = yes
features.enable-repair-commands = yes
}
```
3. Run the docker command
```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
docker run -it --rm --network host -v $(pwd)/console.conf:/app/app.conf |docker_repo_prefix|/canton:|version_literal| --console
```
## Mediator console
1. Ensure you can access the mediator's port 5007
2. Add the configuration to a local file `console.conf`
```
canton {
remote-mediators {
mediator {
admin-api {
port = 5007
address = localhost
}
}
}
features.enable-preview-commands = yes
features.enable-testing-commands = yes
features.enable-repair-commands = yes
}
```
3. Run the docker command
```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
docker run -it --rm --network host -v $(pwd)/console.conf:/app/app.conf |docker_repo_prefix|/canton:|version_literal| --console
```
## Access in a K8s cluster
In a K8s cluster you can use a debug pod to access the console directly from the cluster.
First you can create a pod running the right canton version using:
```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
kubectl debug "${POD_NAME}" --image "$(kubectl get pod "${POD_NAME}" -o json | jq -re '.spec.containers[0].image')" -i -t -- bash
```
where `POD_NAME` is the name of the participant/sequencer/mediator pod.
Once you are inside the running pod you can install a text editor and create the config file `console.conf` that is described above.
```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
$ apt-get update
$ apt-get install -y vim
$ vim console.conf # paste in the config from above
$ /app/bin/canton -v -c console.conf
```