Environment Variables
editEnvironment Variables
editThis functionality is experimental and may be changed or removed
completely in a future release.
You can use environment variable references in the both the configuration file and the action file to set values that need to be configurable at runtime. To do this, use:
${VAR}
Where VAR
is the name of the environment variable.
Each variable reference is replaced at startup by the value of the environment
variable. The replacement is case-sensitive and occurs while the YAML file is
parsed, but before configuration schema validation. References to undefined
variables are replaced by None
unless you specify a default value. To specify
a default value, use:
${VAR:default_value}
Where default_value
is the value to use if the environment variable is
undefined.
Unsupported use cases
When using environment variables, the value must only be the environment variable.
Using extra text, such as:
logfile: ${LOGPATH}/extra/path/information/file.log
is not supported at this time.
Examples
editHere are some examples of configurations that use environment variables and what each configuration looks like after replacement:
Config source | Environment setting | Config after replacement |
---|---|---|
|
|
|
|
no setting |
|
|
no setting |
|
|
|
|