diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 1562cce..9f6ccb7 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -2,11 +2,9 @@ version: "3.3"
 services:
   db:
     container_name: db
-    image: postgres
-    volumes:
-      - ./pg-init-scripts/initdb.sh:/docker-entrypoint-initdb.d/initdb.sh
+    image: sartography/cr-connect-db:$E2E_TAG
     ports:
-      - "5432"
+      - "5432:5432"
     environment:
       - POSTGRES_USER=crc_user
       - POSTGRES_PASSWORD=crc_pass
@@ -21,12 +19,11 @@ services:
     depends_on:
        - db
     image: sartography/cr-connect-workflow:$E2E_TAG
-    volumes:
-      - ./flask-config/config.py:/crc-workflow/instance/config.py
     environment:
       - FLASK_APP=./crc/__init__.py
       - RESET_DB=true
       - LDAP_URL=ldap
+      - DB_HOST=db
     ports:
       - "5000:5000"
     command: ./wait-for-it.sh db:5432 -t 0 -- ./docker_run.sh
@@ -34,8 +31,6 @@ services:
   pb:
     container_name: pb
     image: sartography/protocol-builder-mock:$E2E_TAG
-    volumes:
-      - ./flask-config/config_pb.py:/protocol-builder-mock/instance/config.py
     environment:
       - FLASK_APP=/protocol-builder-mock/app.py
     ports:
diff --git a/docker/flask-config/config.py b/docker/flask-config/config.py
deleted file mode 100644
index 99094c6..0000000
--- a/docker/flask-config/config.py
+++ /dev/null
@@ -1,14 +0,0 @@
-import os
-basedir = os.path.abspath(os.path.dirname(__file__))
-
-NAME = "CR Connect Workflow"
-DEVELOPMENT = True
-SQLALCHEMY_DATABASE_URI = "postgresql://crc_user:crc_pass@db:5432/crc_dev"
-
-# %s/%i placeholders expected for uva_id and study_id in various calls.
-PB_USER_STUDIES_URL = "http://pb:5001/pb/user_studies?uva_id=%s"
-PB_INVESTIGATORS_URL = "http://pb:5001/pb/investigators?studyid=%i"
-PB_REQUIRED_DOCS_URL = "http://pb:5001/pb/required_docs?studyid=%i"
-PB_STUDY_DETAILS_URL = "http://pb:5001/pb/study?studyid=%i"
-
-print('\n\n*** USING INSTANCE CONFIG ***\n\n')
diff --git a/docker/flask-config/config_pb.py b/docker/flask-config/config_pb.py
deleted file mode 100644
index 20160c7..0000000
--- a/docker/flask-config/config_pb.py
+++ /dev/null
@@ -1,11 +0,0 @@
-import os
-basedir = os.path.abspath(os.path.dirname(__file__))
-
-NAME = "CR Connect Protocol Builder Mock"
-CORS_ENABLED = False
-DEVELOPMENT = True
-TESTING = True
-SQLALCHEMY_DATABASE_URI = "postgresql://crc_user:crc_pass@db:5432/pb_test"
-SECRET_KEY = 'a really really really really long secret key'
-
-print('\n\n*** USING INSTANCE CONFIG ***\n\n')
diff --git a/docker/pg-init-scripts/initdb.sh b/docker/pg-init-scripts/initdb.sh
deleted file mode 100644
index aa665fa..0000000
--- a/docker/pg-init-scripts/initdb.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/bash
-
-set -e
-set -u
-
-function create_user_and_database() {
-	local database=$1
-	echo "  Creating user and database '$database'"
-	psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" <<-EOSQL
-	    CREATE USER $database;
-	    CREATE DATABASE $database;
-	    GRANT ALL PRIVILEGES ON DATABASE $database TO $database;
-EOSQL
-}
-
-if [ -n "$POSTGRES_MULTIPLE_DATABASES" ]; then
-	echo "Multiple database creation requested: $POSTGRES_MULTIPLE_DATABASES"
-	for db in $(echo $POSTGRES_MULTIPLE_DATABASES | tr ',' ' '); do
-		create_user_and_database $db
-	done
-	echo "Multiple databases created"
-fi