Setup Postgres to docker compose + add web indexing APIs + update background runner to look for web indices to run (#13)

* Adding Postgres to docker compose

* Model / migrations for indexing logs

backend/alembic/versions/47433d30de82_create_indexattempt_table.py

@@ -0,0 +1,72 @@
+"""Create IndexAttempt table
+
+Revision ID: 47433d30de82
+Revises: 
+Create Date: 2023-05-04 00:55:32.971991
+
+"""
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = "47433d30de82"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "index_attempt",
+        sa.Column("id", sa.Integer(), nullable=False),
+        # String type since python enum will change often
+        sa.Column(
+            "source",
+            sa.String(),
+            nullable=False,
+        ),
+        # String type to easily accomodate new ways of pulling
+        # in documents
+        sa.Column(
+            "input_type",
+            sa.String(),
+            nullable=False,
+        ),
+        sa.Column(
+            "connector_specific_config",
+            postgresql.JSONB(),
+            nullable=False,
+        ),
+        sa.Column(
+            "time_created",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=True,
+        ),
+        sa.Column(
+            "time_updated",
+            sa.DateTime(timezone=True),
+            server_onupdate=sa.text("now()"),  # type: ignore
+            nullable=True,
+        ),
+        sa.Column(
+            "status",
+            sa.Enum(
+                "NOT_STARTED",
+                "IN_PROGRESS",
+                "SUCCESS",
+                "FAILED",
+                name="indexingstatus",
+            ),
+            nullable=False,
+        ),
+        sa.Column("document_ids", postgresql.ARRAY(sa.String()), nullable=True),
+        sa.Column("error_msg", sa.String(), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("index_attempt")
+    sa.Enum(name="indexingstatus").drop(op.get_bind(), checkfirst=False)