backy-docs/content/config/commands.md

title	weight
Commands	2

The yaml top-level map can be any string.

The top-level name must be unique.

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
    host: some-host 
  backup-docker-container-script:
    cmd: /path/to/script
    # The host has to be defined in either the config file or the SSH Config files
    host: some-host
    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
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:

cmd [arg1 arg2 ...]

Define them in an array:

args:
  - arg1
  - arg2
  - arg3

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.

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.