Test shell script to return access token as from Keycloak

test_keycloak_auth_token.sh

export USERNAME={{ username }}
export PASSWORD={{ password }}
export CLIENT_ID={{ client_id }}
export CLIENT_SECRET={{ client_secret }}
export HOSTNAME={{ hostname }}
export REALM={{ realm }}

export AUTH_TOKEN=`curl -s -d "client_id=$CLIENT_ID" -d "client_secret=$CLIENT_SECRET" \
  -d "username=$USERNAME" -d "password=$PASSWORD" -d "grant_type=$PASSWORD" \
  "https://$HOSTNAME:8443/auth/realms/$REALM/protocol/openid-connect/token" | jq -r '.access_token'`
  
echo $AUTH_TOKEN