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41 lines
2.1 KiB
Markdown
41 lines
2.1 KiB
Markdown
---
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title: docker/dtr remove
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description: Remove a DTR replica from a cluster
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keywords: dtr, cli, remove
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---
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Remove a DTR replica from a cluster
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## Usage
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```bash
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docker run -it --rm docker/dtr \
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remove [command options]
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```
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## Description
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This command gracefully scales down your DTR cluster by removing exactly
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one replica. All other replicas must be healthy and will remain healthy after
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this operation.
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## Options
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| Option | Environment Variable | Description |
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|:------------------------------|:--------------------------|:-------------------------------------------------------------------------------------|
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| `--debug` | $DEBUG | Enable debug mode for additional logs. |
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| `--enzi-ca` | $ENZI_TLS_CA | Use a PEM-encoded TLS CA certificate for Enzi. |
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| `--enzi-insecure-tls` | $ENZI_TLS_INSECURE | Disable TLS verification for Enzi. |
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| `--existing-replica-id` | $DTR_REPLICA_ID | The ID of an existing DTR replica. To safely remove a DTR replica from the cluster, the remove command needs to notify a healthy replica about the replica that's about to be removed. |
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| `--help-extended` | $DTR_EXTENDED_HELP | Display extended help text for a given command. |
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| `--replica-id` | $DTR_REMOVE_REPLICA_ID | DEPRECATED Alias for --replica-ids. |
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| `--replica-ids` | $DTR_REMOVE_REPLICA_IDS | A comma separated list of IDs of replicas to remove from the cluster. |
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| `--ucp-ca` | $UCP_CA | Use a PEM-encoded TLS CA certificate for UCP. Download the UCP TLS CA certificate from https://<ucp-url>/ca, and use --ucp-ca "$(cat ca.pem)". |
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| `--ucp-insecure-tls` | $UCP_INSECURE_TLS | Disable TLS verification for UCP. The installation uses TLS but always trusts the TLS certificate used by UCP, which can lead to man-in-the-middle attacks. For production deployments, use --ucp-ca "$(cat ca.pem)" instead. |
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| `--ucp-password` | $UCP_PASSWORD | The UCP administrator password. |
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| `--ucp-url` | $UCP_URL | The UCP URL including domain and port. |
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| `--ucp-username` | $UCP_USERNAME | The UCP administrator username. |
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