Remove multiple job failure tables in favor of one.

We don't know yet how useful the job failue tables will be, and
maintaining multiple failure tables--one for every entity involved in
CSP provisioning--is burdensome. This collapses them all into a single
table that track the entity type (environment, portfolio, etc.) and the
entity ID. That way we can construct queries when needed to find task
results.

alembic/versions/508957112ed6_combine_job_failures.py

@@ -0,0 +1,60 @@
+"""combine job failures
+
+Revision ID: 508957112ed6
+Revises: 07e0598199f6
+Create Date: 2020-01-25 15:03:06.377442
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '508957112ed6' # pragma: allowlist secret
+down_revision = '07e0598199f6' # pragma: allowlist secret
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('job_failures',
+        sa.Column('time_created', sa.TIMESTAMP(timezone=True), server_default=sa.text('now()'), nullable=False),
+        sa.Column('time_updated', sa.TIMESTAMP(timezone=True), server_default=sa.text('now()'), nullable=False),
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('task_id', sa.String(), nullable=False),
+        sa.Column('entity', sa.String(), nullable=False),
+        sa.Column('entity_id', sa.String(), nullable=False),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.drop_table('environment_job_failures')
+    op.drop_table('environment_role_job_failures')
+    op.drop_table('portfolio_job_failures')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('portfolio_job_failures',
+        sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
+        sa.Column('task_id', sa.VARCHAR(), autoincrement=False, nullable=False),
+        sa.Column('portfolio_id', postgresql.UUID(), autoincrement=False, nullable=False),
+        sa.ForeignKeyConstraint(['portfolio_id'], ['portfolios.id'], name='portfolio_job_failures_portfolio_id_fkey'),
+        sa.PrimaryKeyConstraint('id', name='portfolio_job_failures_pkey')
+    )
+    op.create_table('environment_role_job_failures',
+        sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
+        sa.Column('task_id', sa.VARCHAR(), autoincrement=False, nullable=False),
+        sa.Column('environment_role_id', postgresql.UUID(), autoincrement=False, nullable=False),
+        sa.ForeignKeyConstraint(['environment_role_id'], ['environment_roles.id'], name='environment_role_job_failures_environment_role_id_fkey'),
+        sa.PrimaryKeyConstraint('id', name='environment_role_job_failures_pkey')
+    )
+    op.create_table('environment_job_failures',
+        sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
+        sa.Column('task_id', sa.VARCHAR(), autoincrement=False, nullable=False),
+        sa.Column('environment_id', postgresql.UUID(), autoincrement=False, nullable=False),
+        sa.ForeignKeyConstraint(['environment_id'], ['environments.id'], name='environment_job_failures_environment_id_fkey'),
+        sa.PrimaryKeyConstraint('id', name='environment_job_failures_pkey')
+    )
+    op.drop_table('job_failures')
+    # ### end Alembic commands ###