test(docker): setup docker env for testing

.env.testing

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+# Localstack
+
+HOSTNAME=localstack-s3
+SERVICES=s3:5000
+DEFAULT_REGION=us-east-1
+
+S3_KEY=no_need
+S3_SECRET=no_need
+S3_ENDPOINT=http://localstack-s3:5000
+S3_BUCKET=testbucket
+S3_REGION=us-east-1
+
+SPACES_KEY=no_need
+SPACES_SECRET=no_need
+SPACES_ENDPOINT=http://localstack-s3:5000
+SPACES_BUCKET=testbucket
+SPACES_REGION=us-east-1

Dockerfile

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+FROM node:current-alpine
+
+WORKDIR /app
+
+COPY package.json ./
+COPY yarn.lock ./
+
+RUN apk add --no-cache \
+  python \
+  make \
+  gcc \
+  g++ \
+  && yarn
+
+RUN yarn
+
+COPY . .
+CMD ["yarn", "run", "test"]

docker-compose.yml

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+version: '3'
+services:
+  flydrive:
+    container_name: flydrive
+    build:
+      context: .
+      dockerfile: ./Dockerfile
+    depends_on:
+      - localstack-s3
+    env_file:
+      - ./.env.testing
+    volumes:
+      - .:/app
+      - /app/node_modules
+    command: tail -f /dev/null
+
+  # Based on http://bluesock.org/~willkg/blog/dev/using_localstack_for_s3.html
+  # More examples at https://medium.com/@andyalky/developing-aws-apps-locally-with-localstack-7f3d64663ce4
+  localstack-s3:
+    container_name: localstack-s3
+    image: localstack/localstack
+    env_file:
+      - ./.env.testing
+    ports:
+      - '5000:5000'
+      - '8080:8080'
+    restart: on-failure