WIP: Dockerize databases to speed-up local testing

docker-compose.yml

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+# Create database containers to simplify running tests.
+
+# NB: Init scripts are executed in alphabetic order, hence the renaming of files
+# within the container to ensure "model" migrations (i.e. those creating tables)
+# are executed before those to seed records. After making changes to any init
+# scripts you'll have to `docker-compose down` and `docker-compose up` to see
+# this reflected within the containers.
+
+# Database containers don't have persistent volumes. This means any changes you
+# make (eg. inserting records) will be lost after a `docker-compose down` and
+# `docker-compose up`.
+
+version: "3.5"
+
+services:
+  mssql:
+    build:
+      context: ./
+      dockerfile: mssql.Dockerfile
+    environment:
+      ACCEPT_EULA: "Y"
+      MSSQL_PID: "Developer"
+      SA_PASSWORD: "Sequelizeauto!"
+    ports:
+      - 1433:1433
+    volumes:
+      - ./sample/dbscripts/mssql-sample-model.sql:/usr/db/mssql-sample-model.sql
+      - ./sample/dbscripts/mssql-sample-data.sql:/usr/db/mssql-sample-data.sql
+  mysql:
+    environment:
+      MYSQL_DATABASE: "northwind"
+      MYSQL_USER: "sequelizeauto"
+      MYSQL_PASSWORD: "Sequelizeauto!"
+      MYSQL_ROOT_PASSWORD: "Sequelizeauto!"
+    image: mysql:8.0
+    ports:
+      - 3306:3306
+    restart: always
+    volumes:
+      - ./sample/dbscripts/mysql-sample-model.sql:/docker-entrypoint-initdb.d/001.mysql-sample-model.sql
+      - ./sample/dbscripts/mysql-sample-data.sql:/docker-entrypoint-initdb.d/002.mysql-sample-data.sql
+  postgres:
+    environment:
+      POSTGRES_USER: "sequelizeauto"
+      POSTGRES_PASSWORD: "Sequelizeauto!"
+      POSTGRES_DB: "northwind"
+    image: postgres:12
+    ports:
+      - 5432:5432
+    restart: always
+    volumes:
+      - ./sample/dbscripts/postgres-sample-model.sql:/docker-entrypoint-initdb.d/001.postgres-sample-model.sql
+      - ./sample/dbscripts/postgres-sample-data.sql:/docker-entrypoint-initdb.d/002.postgres-sample-data.sql
+  # Unlike the other databases, sqlite doesn't require leaving a process
+  # running. This container is just responsible for writing out a sqlite3
+  # database file in `sample/northwind.sqlite`. It's normal for this to
+  # exit immediately after generating this file. (As with other databases
+  # this is wiped and recreated from scratch on `docker-compose up`)
+  sqlite:
+    build:
+      context: ./
+      dockerfile: sqlite3.Dockerfile
+    volumes:
+      - ./sample/dbscripts/sqlite-sample-model.sql:/usr/db/sqlite-sample-model.sql
+      - ./sample/dbscripts/sqlite-sample-data.sql:/usr/db/sqlite-sample-data.sql
+      - ./sample/northwind.sqlite:/usr/db/northwind.sqlite

mssql.Dockerfile

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+# mssql doesn't have an in-built way of initializing a database on
+# container startup, hence we'll have to do some setup ourselves.
+# Derived from: https://github.com/microsoft/mssql-docker/tree/master/linux/preview/examples/mssql-customize
+
+FROM mcr.microsoft.com/mssql/server:2019-CU9-ubuntu-16.04
+
+# Create a config directory
+RUN mkdir -p /usr/config
+WORKDIR /usr/config
+
+# Bundle config source
+COPY ./sample/dbscripts/mssql-docker-entrypoint.sh /usr/config/entrypoint.sh
+COPY ./sample/dbscripts/mssql-docker-setup.sh /usr/config/setup.sh
+
+ENTRYPOINT ["./entrypoint.sh"]

sample/.gitignore

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+northwind.sqlite

sample/dbscripts/mssql-docker-entrypoint.sh

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+#!/bin/bash
+
+# Start the script to run initial migrations
+/usr/config/setup.sh &
+
+# Start SQL Server
+/opt/mssql/bin/sqlservr

sample/dbscripts/mssql-docker-setup.sh

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+#!/bin/bash
+
+# Wait 60 seconds for SQL Server to start up by ensuring that
+# calling SQLCMD does not return an error code, which will ensure that sqlcmd is accessible
+# and that system and user databases return "0" which means all databases are in an "online" state
+# https://docs.microsoft.com/en-us/sql/relational-databases/system-catalog-views/sys-databases-transact-sql?view=sql-server-2017
+
+DBSTATUS=1
+ERRCODE=1
+i=0
+
+while [[ $DBSTATUS -ne 0 ]] && [[ $i -lt 60 ]] && [[ $ERRCODE -ne 0 ]]; do
+	i=$i+1
+	DBSTATUS=$(/opt/mssql-tools/bin/sqlcmd -h -1 -t 1 -U sa -P $SA_PASSWORD -Q "SET NOCOUNT ON; Select SUM(state) from sys.databases")
+	ERRCODE=$?
+	sleep 1
+done
+
+if [ $DBSTATUS -ne 0 ] OR [ $ERRCODE -ne 0 ]; then
+	echo "SQL Server took more than 60 seconds to start up or one or more databases are not in an ONLINE state"
+	exit 1
+fi
+
+# Run the setup script to create the DB and the schema in the DB
+/opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P $SA_PASSWORD -d master -i /usr/db/mssql-sample-model.sql
+/opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P $SA_PASSWORD -d master -i /usr/db/mssql-sample-data.sql

sample/dbscripts/mysql-sample-model.sql

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-CREATE DATABASE  IF NOT EXISTS `Northwind` /*!40100 DEFAULT CHARACTER SET utf8 */;
-USE `Northwind`;
+CREATE DATABASE IF NOT EXISTS "sequelize_auto_test";
+
+CREATE DATABASE  IF NOT EXISTS `northwind` /*!40100 DEFAULT CHARACTER SET utf8 */;
+USE `northwind`;
 
 DROP TABLE IF EXISTS `order_item`;
 DROP TABLE IF EXISTS `orderitem`;

sample/dbscripts/postgres-sample-model.sql

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---DROP DATABASE IF EXISTS "Northwind";
---CREATE DATABASE "Northwind";
--- Need to do the above separately, then reconnect to Northwind database
+--DROP DATABASE IF EXISTS "northwind";
+--CREATE DATABASE "northwind";
+-- Need to do the above separately, then reconnect to northwind database
+
+DROP DATABASE IF EXISTS "sequelize_auto_test";
+CREATE DATABASE "sequelize_auto_test";
 
 DROP TABLE IF EXISTS "OrderItem";
 DROP TABLE IF EXISTS "Product";

sqlite3.Dockerfile

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+FROM debian:stable-slim
+
+RUN apt-get update && \
+	apt-get -yq --no-install-recommends install sqlite3=3.* && \
+	mkdir -p /usr/db
+
+WORKDIR /usr/db
+
+CMD truncate -s 0 northwind.sqlite && \
+  sqlite3 northwind.sqlite < sqlite-sample-model.sql && \
+  sqlite3 northwind.sqlite < sqlite-sample-data.sql