mirror of https://github.com/status-im/consul.git
56 lines
1.9 KiB
Plaintext
56 lines
1.9 KiB
Plaintext
---
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layout: commands
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page_title: 'Commands: TLS CA Create'
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description: |
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The `consul tls ca create` command creates a self-signed certificate authority (CA) for TLS setup.
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---
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# Consul TLS CA Create
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Command: `consul tls ca create`
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This command creates a self-signed CA to be used for Consul TLS setup.
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## Examples
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Create a CA:
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```shell-session
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$ consul tls ca create
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==> Saved consul-ca.pem
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==> Saved consul-ca-key.pem
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```
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Create a CA that signs certificates exclusively for the example.com domain:
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```shell-session
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$ consul tls ca create -name-constraint -domain example.com
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==> Saved example.com-ca.pem
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==> Saved example.com-ca-key.pem
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```
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## Usage
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Usage: `consul tls ca create [options]`
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#### Command Options
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- `-additional-name-constraint=<value>` - Add name constraints for the CA.
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Results in rejecting certificates for other DNS than specified. Can be used
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multiple times. Only used in combination with `-name-constraint`.
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- `-days=<int>` - Number of days the CA is valid for. Defaults to 1825 days (approximately 5 years).
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- `-domain=<string>` - The DNS domain of the Consul cluster that agents are [configured](/consul/docs/agent/config/cli-flags#_domain) with.
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Defaults to `consul`. Only used when `-name-constraint` is set.
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Additional domains can be passed with `-additional-name-constraint`.
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- `-name-constraint` - Enables [X.509 name constraints](https://www.rfc-editor.org/rfc/rfc5280#page-40) for the CA.
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If used, the CA only signs certificates for localhost and the domains specified by `-domain` and `-additional-name-constraint`.
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If Consul's UI is served over HTTPS in your deployment, add its DNS name with `-additional-constraint` as well. Defaults to `false`.
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- `cluster-id` - ID of the Consul cluster. Sets the CA's URI with the SPIFFEID composed of the cluster ID and domain
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(specified by `-domain` or `consul` by default).
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- `common-name` - Common Name of CA. Defaults to Consul Agent CA.
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