backy/docs/content/config/commands.md
Andrew Woodlee e353ed0225
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update docs
2023-07-02 05:32:33 -05:00

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---
title: "Commands"
weight: 1
---
The yaml top-level map can be any string.
The top-level name must be unique.
```yaml
commands:
stop-docker-container:
cmd: docker
Args:
- compose
- -f /some/path/to/docker-compose.yaml
- down
# if host is not defined, command will be run locally
# The host has to be defined in either the config file or the SSH Config files
host: some-host
backup-docker-container-script:
cmd: /path/to/local/script
# script file is input as stdin to SSH
type: scriptFile # also can be script
environment:
- FOO=BAR
- APP=$VAR
```
Values available for this section:
| name | description | type | required
| --- | --- | --- | --- |
| `cmd` | Defines the command to execute | `string` | yes |
| `args` | Defines the arguments to the command | `[]string` | no |
| `environment` | Defines evironment variables for the command | `[]string` | no |
| `type` | May be `scriptFile` or `script`. Runs script from local machine on remote | `string` | no |
| `getOutput` | Command(s) output is in the notification(s) | `bool` | no |
| `host` | If not specified, the command will execute locally. | `string` | no |
| `shell` | Only applicable when host is not specified | `string` | no |
#### cmd
cmd must be a valid command or script to execute.
#### args
args must be arguments to cmd as they would be on the command-line:
```sh
cmd [arg1 arg2 ...]
```
Define them in an array:
```yaml
args:
- arg1
- arg2
- arg3
```
### getOutput
Get command output when a notification is sent.
Is not required. Can be `true` or `false`.
#### host
{{% notice info %}}
If any `host` is not defined or left blank, the command will run on the local machine.
{{% /notice %}}
Host may or may not be defined in the `hosts` section.
{{% notice info %}}
If any `host` from the commands section does not match any object in the `hosts` section, the `Host` is assumed to be this value. This value will be used to search in the default SSH config files.
For example, say that I have a host defined in my SSH config with the `Host` defined as `web-prod`.
If I assign a value to host as `host: web-prod` and don't specify this value in the `hosts` object, web-prod will be used as the `Host` in searching the SSH config files.
{{% /notice %}}
### shell
If shell is defined and host is NOT defined, the command will run in the specified shell.
Make sure to escape any shell input.
### type
May be `scriptFile` or `script`. Runs script from local machine on remote host.
If `script` is specified, `cmd` is used as the script.
Script file is input as stdin to SSH.
### environment
The environment variables support expansion:
- using escaped values `$VAR` or `${VAR}`
For now the variables have to be defined in an `.env` file in the same directory as the config file.
If using it with host specified, the SSH server has to be configured to accept those env variables.
If the command is run locally, the OS's environment is added.