Set Environment Variables

(Note: If you are using OAuth2, you will also need the environment variables described here.)

The following environment variables will be used to authenticate you to your Google Cloud project.

• GOOGLE_CLOUD_PROJECT – Project ID of the project that you will authenticate to.

• GOOGLE_APPLICATION_CREDENTIALS – Path to a key file containing your service account credentials.

Set the environment variables using:

# Replace everything between angle brackets with your values.
export GOOGLE_CLOUD_PROJECT="<my-project-id>"
export GOOGLE_APPLICATION_CREDENTIALS="</local/path/to/GCP_auth_key.json>"

If you are using pittgoogle-client (python) only, setting the environment variables is sufficient. If you are also using the command-line tools, you may need to re-run the gcloud auth command (see Google Cloud SDK).

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If you are using a conda environment, you can configure it to automatically set/unset the variables when you activate/deactivate the environment. Otherwise, you will need to set the variables again every time you start a new shell.

First, activate your conda environment and make sure the variables GOOGLE_CLOUD_PROJECT and GOOGLE_APPLICATION_CREDENTIALS are set. Then run the following commands.

# Create the activate/deactivate files if they don't already exist.
mkdir -p "${CONDA_PREFIX}/etc/conda/activate.d"
mkdir -p "${CONDA_PREFIX}/etc/conda/deactivate.d"
touch "${CONDA_PREFIX}/etc/conda/activate.d/env_vars.sh"
touch "${CONDA_PREFIX}/etc/conda/deactivate.d/env_vars.sh"

# Set the environment variables when the environment is activated.
echo "export GOOGLE_CLOUD_PROJECT=${GOOGLE_CLOUD_PROJECT}" >> "${CONDA_PREFIX}/etc/conda/activate.d/env_vars.sh"
echo "export GOOGLE_APPLICATION_CREDENTIALS=${GOOGLE_APPLICATION_CREDENTIALS}" >> "${CONDA_PREFIX}/etc/conda/activate.d/env_vars.sh"

# Unset the environment variables when the environment is deactivated.
echo "unset GOOGLE_CLOUD_PROJECT" >> "${CONDA_PREFIX}/etc/conda/deactivate.d/env_vars.sh"
echo "unset GOOGLE_APPLICATION_CREDENTIALS" >> "${CONDA_PREFIX}/etc/conda/deactivate.d/env_vars.sh"