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docs | Command: console | docs-commands-console | The `terraform console` command creates an interactive console for using [interpolations](/docs/configuration/interpolation.html). |
Command: console
The terraform console
command creates an interactive console for
using interpolations.
Usage
Usage: terraform console [options] [dir]
This opens an interactive console for experimenting with interpolations. This is useful for testing interpolations before using them in configurations as well as interacting with an existing state.
If a state file doesn't exist, the console still works and can be used
to experiment with supported interpolation functions. Try entering some basic
math such as 1 + 5
to see.
The dir
argument can be used to open a console for a specific Terraform
configuration directory. This will load any state from that directory as
well as the configuration. This defaults to the current working directory.
The console
command does not require Terraform state or configuration
to function.
The command-line flags are all optional. The list of available flags are:
-state=path
- Path to the state file. Defaults toterraform.tfstate
. A state file doesn't need to exist.
You can close the console with the exit
command or by using Control-C
or Control-D.
Scripting
The terraform console
command can be used in non-interactive scripts
by piping newline-separated commands to it. Only the output from the
final command is outputted unless an error occurs earlier.
An example is shown below:
$ echo "1 + 5" | terraform console
6
Remote State
The terraform console
command will read configured state even if it
is remote. This is great for scripting
state reading in CI environments or other remote scenarios.
After configuring remote state, run a terraform remote pull
command
to sync state locally. The terraform console
command will use this
state for operations.
Because the console currently isn't able to modify state in any way, this is a one way operation and you don't need to worry about remote state conflicts in any way.