Implement SSO

[thisdapo]

In order to test out the SSO implementation, we can use my private AD account for testing purposes. We will switch the environment variables when we get the keys from IT.

Environment variable requirements:

export CLIENT_ID=''
export TENANT_ID=''
export CLIENT_SECRET=''
export SSO_REDIRECT_URL='http://localhost:2000/auth/openid/return'

[thisdapo]

We also need to update the user table schema:

ALTER TABLE users
ADD COLUMN createdFromSso BOOLEAN DEFAULT FALSE;