add migrations from SSO repo

migrations/versions/27761560bbcb_.py

@@ -0,0 +1,46 @@
+"""empty message
+
+Revision ID: 27761560bbcb
+Revises: 
+Create Date: 2021-12-21 06:07:14.857940
+
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "27761560bbcb"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "app",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("name", sa.String(length=64), nullable=True),
+        sa.Column("slug", sa.String(length=64), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("slug"),
+    )
+    op.create_table(
+        "app_role",
+        sa.Column("user_id", sa.String(length=64), nullable=False),
+        sa.Column("app_id", sa.Integer(), nullable=False),
+        sa.Column("role", sa.String(length=64), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["app_id"],
+            ["app.id"],
+        ),
+        sa.PrimaryKeyConstraint("user_id", "app_id"),
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table("app_role")
+    op.drop_table("app")
+    # ### end Alembic commands ###