♻️(yhub) create dedicated file for environment variables in development

For now the environment variable for yhub were added to the common file.
This number of environment is growing and is specific to yhub so we
decided to create a dedicated file for yhub

.github/workflows/impress.yml

@@ -263,8 +263,13 @@ jobs:
           REDIS_PREFIX: yhub
           COLLABORATION_BACKEND_BASE_URL: http://localhost:8000
           COLLABORATION_SERVER_ORIGIN: http://localhost:3000
-          AWS_STORAGE_BUCKET_NAME: impress-media-storage
+          # the legacy Django bucket it migrates documents out of, named apart
+          # from the AWS_S3_* the job sets for django itself
           SOFT_MIGRATION: "true"
+          LEGACY_S3_ENDPOINT_URL: http://localhost:9000
+          LEGACY_S3_ACCESS_KEY_ID: impress
+          LEGACY_S3_SECRET_ACCESS_KEY: password
+          LEGACY_S3_BUCKET_NAME: impress-media-storage
         run: |
           nohup node server.js > /tmp/yhub.log 2>&1 &
           dockerize -wait tcp://localhost:3002 -timeout 30s