github.com/hobbeswalsh/terraform@v0.3.7-0.20150619183303-ad17cf55a0fa/website/source/docs/providers/consul/r/keys.html.markdown (about) 1 --- 2 layout: "consul" 3 page_title: "Consul: consul_keys" 4 sidebar_current: "docs-consul-resource-keys" 5 description: |- 6 Provides access to Key/Value data in Consul. This can be used to both read keys from Consul, but also to set the value of keys in Consul. This is a powerful way dynamically set values in templates, and to expose infrastructure details to clients. 7 --- 8 9 # consul\_keys 10 11 Provides access to Key/Value data in Consul. This can be used 12 to both read keys from Consul, but also to set the value of keys 13 in Consul. This is a powerful way dynamically set values in templates, 14 and to expose infrastructure details to clients. 15 16 ## Example Usage 17 18 ``` 19 resource "consul_keys" "app" { 20 datacenter = "nyc1" 21 token = "abcd" 22 23 # Read the launch AMI from Consul 24 key { 25 name = "ami" 26 path = "service/app/launch_ami" 27 default = "ami-1234" 28 } 29 30 # Set the CNAME of our load balancer as a key 31 key { 32 name = "elb_cname" 33 path = "service/app/elb_address" 34 value = "${aws_elb.app.dns_name}" 35 } 36 } 37 38 # Start our instance with the dynamic ami value 39 resource "aws_instance" "app" { 40 ami = "${consul_keys.app.var.ami}" 41 ... 42 } 43 ``` 44 45 ## Argument Reference 46 47 The following arguments are supported: 48 49 * `datacenter` - (Optional) The datacenter to use. This overrides the 50 datacenter in the provider setup and the agent's default datacenter. 51 52 * `token` - (Optional) The ACL token to use. This overrides the 53 token that the agent provides by default. 54 55 * `key` - (Required) Specifies a key in Consul to be read or written. 56 Supported values documented below. 57 58 The `key` block supports the following: 59 60 * `name` - (Required) This is the name of the key. This value of the 61 key is exposed as `var.<name>`. This is not the path of the key 62 in Consul. 63 64 * `path` - (Required) This is the path in Consul that should be read 65 or written to. 66 67 * `default` - (Optional) This is the default value to set for `var.<name>` 68 if the key does not exist in Consul. Defaults to the empty string. 69 70 * `value` - (Optional) If set, the key will be set to this value. 71 This allows a key to be written to. 72 73 * `delete` - (Optional) If true, then the key will be deleted when 74 the resource is destroyed. Otherwise, it will be left in Consul. 75 Defaults to false. 76 77 ## Attributes Reference 78 79 The following attributes are exported: 80 81 * `datacenter` - The datacenter the keys are being read/written to. 82 * `var.<name>` - For each name given, the corresponding attribute 83 has the value of the key. 84