43 lines
1.2 KiB
Plaintext
43 lines
1.2 KiB
Plaintext
---
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layout: docs
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page_title: 'Commands: TLS CA Create'
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sidebar_title: ca
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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 create a self signed CA to be used for Consul TLS setup.
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## Example
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Create CA:
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```bash
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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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## Usage
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Usage: `consul tls ca create [filename-prefix] [options]`
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#### TLS CA Create 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>` - Provide number of days the CA is valid for from now on, defaults to 5 years.
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- `-domain=<string>` - Domain of consul cluster. Only used in combination with
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`-name-constraint`. Defaults to `consul`.
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- `-name-constraint` - Add name constraints for the CA. Results in rejecting
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certificates for other DNS than specified. If turned on localhost and -domain
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will be added to the allowed DNS. If the UI is going to be served over HTTPS
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its DNS has to be added with `-additional-constraint`. It is not possible to
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add that after the fact! Defaults to false.
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