mirror of https://github.com/status-im/consul.git
131 lines
3.6 KiB
Plaintext
131 lines
3.6 KiB
Plaintext
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---
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layout: commands
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page_title: 'Commands: ACL Templated Policy Preview'
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description: |
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The `consul acl templated-policy preview` command previews what resulting generated policy from a templated policy.
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---
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# Consul ACL Templated Policy Preview
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Command: `consul acl templated-policy preview`
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Corresponding HTTP API Endpoint: [\[POST\] /v1/acl/templated-policy/preview/:name](/consul/api-docs/acl/templated-policies#preview-a-templated-policy)
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Use the `acl templated-policy preview` command to preview the policy generated from a templated policy.
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You must provide an ACL token with `acl:read` permissions to use the `consul all templated-policy preview` command.
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The command does not support [blocking queries](/consul/api-docs/features/blocking) and [agent caching](/consul/api-docs/features/caching).
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## Usage
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Usage: `consul acl templated-policy preview [options] [args]`
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### Command Options
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- `-name`: String value that specifies the templated policy name. Use `-var` flag to specify variables when
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required.
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- `var`: String value that specifies templated policy variables. Must be used in combination with `-name`
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flag to specify required variables. You can use the flag multiple times with different
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variables. Format is `VariableName:Value`
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- `-file`: String value that specifies the path to a file containing templated policies and variables.
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- `-format`: Specifies the output format. You can specify either `pretty` or `json` The default value is `pretty`.
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### Enterprise options
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@include 'http_api_partition_options.mdx'
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@include 'http_api_namespace_options.mdx'
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### API options
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@include 'http_api_options_client.mdx'
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@include 'http_api_options_server.mdx'
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## Examples
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The following examples demonstrate common patterns for using the `acl templated-policy preview` command.
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### Preview a templated policy with no required variables
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```shell-session
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consul acl templated-policy preview -name "builtin/dns"
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ID: 0a6e6f64655f70726566697...
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Name: synthetic-policy-0a6e6f...
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Description: synthetic policy generated from templated policy: builtin/dns
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Datacenters:
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Rules:
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node_prefix "" {
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policy = "read"
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}
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service_prefix "" {
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policy = "read"
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}
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query_prefix "" {
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policy = "read"
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}
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```
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### Preview a templated policy with required variables
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In the following example, Consul prints a preview of the policy generated from the `builtin/service` templated policy for the service name `api`.
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```shell-session
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consul acl templated-policy preview -name "builtin/service" -var "name:api"
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ID: 0a736572766963652022617...
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Name: synthetic-policy-0a7365...
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Description: synthetic policy generated from templated policy: builtin/service
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Datacenters:
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Rules:
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service "api" {
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policy = "write"
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}
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service "api-sidecar-proxy" {
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policy = "write"
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}
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service_prefix "" {
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policy = "read"
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}
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node_prefix "" {
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policy = "read"
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}
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```
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### Preview a templated policy using a file:
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The following example shows a payload request to preview of the policy generated from the `builtin/service` templated policy.
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The payload includes a variable named `web`, which Consul uses as the service name.
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#### Sample payload
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```hcl
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TemplatedPolicy "builtin/service" {
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Name = "web"
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}
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```
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```shell-session
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$ consul acl templated-policy -file templated-policy.hcl
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ID: 0a736572766963652022776...
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Name: synthetic-policy-0a7365...
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Description: synthetic policy generated from templated policy: builtin/service
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Datacenters:
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Rules:
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service "web" {
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policy = "write"
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}
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service "web-sidecar-proxy" {
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policy = "write"
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}
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service_prefix "" {
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policy = "read"
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}
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node_prefix "" {
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policy = "read"
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}
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```
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