Console

To set environment variables for an existing environment:

1. In Google Cloud console, go to theEnvironments page.

   Go to Environments

2. In the list of environments, click the name of your environment.TheEnvironment details page opens.

3. Go to theEnvironment variables tab and clickEdit.

4. Add, change, or delete environment variables for your environment:

   • In theName field, specify the variable name.
   • In theValue field, specify the variable value.
   • To add an extra variable, clickAdd environment variable.
   • To delete a variable, hold the pointer over a variable, then clickDelete item.

gcloud

Following arguments control environment variables:

• --update-env-variables specifies a comma-separated list of environmentvariables to create or update.

• --remove-env-variables specifies a comma-separated list of environmentvariables to delete.

• --clear-env-variables deletes all existing environment variables.

gcloudcomposerenvironmentsupdate\ENVIRONMENT_NAME\--locationLOCATION\--update-env-variables=NAME=VALUE

Replace:

• ENVIRONMENT_NAME with the name of the environment.
• LOCATION with the region where the environment is located.
• NAME with the name of the variable that you want to create or update.
• VALUE with the value for the variable.
• To add more than one variable, separate the definitions with commas:NAME=VALUE,NAME=VALUE,....

Example:

gcloudcomposerenvironmentsupdate\example-environment\--locationus-central1\--update-env-variables=EXAMPLE_VARIABLE=True,ANOTHER_VARIABLE=test

API

Construct anenvironments.patch API request.

In this request:

1. In theupdateMask parameter, specify theconfig.softwareConfig.envVariables mask to replace all existingvariables with the specified variables. Variables that you don't specifyare deleted.

2. In the request body, specify variables and their values:

   {"config":{"softwareConfig":{"envVariables":{"VAR_NAME":"VAR_VALUE"}}}}

   Replace:

   • VAR_NAME with the name of the environment variable.
   • VAR_VALUE with the value of the environment variable.
   • To add more than one variable, add extra entries for variablestoenvVariables.

Example:

// PATCH https://composer.googleapis.com/v1/projects/example-project/// locations/us-central1/environments/example-environment?updateMask=// config.softwareConfig.envVariables{"config":{"softwareConfig":{"envVariables":{"EXAMPLE_VARIABLE":"True","ANOTHER_VARIABLE":"test"}}}}

Terraform

Theenv_variables block in thesoftware_config block specifiesenvironment variables.

resource"google_composer_environment""example"{name="ENVIRONMENT_NAME"region="LOCATION"config{software_config{env_variables={VAR_NAME="VAR_VALUE"}}}}

Replace:

• ENVIRONMENT_NAME with the name of the environment.
• LOCATION with the region where the environment is located.
• VAR_NAME with the name of the environment variable.
• VAR_VALUE with the value of the environment variable.
• To add more than one variable, add extra entries for variablestoenv_variables.

Example:

resource"google_composer_environment""example"{name="example-environment"region="us-central1"config{software_config{env_variables={EXAMPLE_VARIABLE="True"ANOTHER_VARIABLE="test"}}}}