Dockerize app

Author: mfarias

Dockerfile

@@ -0,0 +1,21 @@
+# pull official base image
+FROM python:3.8.0-alpine
+# set work directory
+WORKDIR /usr/src/app
+# set environment variables
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV PYTHONUNBUFFERED 1
+ENV FLASK_RUN_HOST=0.0.0.0
+RUN apk update && apk add build-base postgresql-dev gcc python3-dev musl-dev
+# install dependencies
+RUN pip install --upgrade pip
+COPY ./requirements.txt /usr/src/app/requirements.txt
+#RUN export LDFLAGS="-L/usr/local/opt/openssl/lib"
+RUN pip install -r requirements.txt
+# copy project
+COPY . /usr/src/app/
+EXPOSE 5000
+
+COPY ./docker-entrypoint.sh /docker-entrypoint.sh
+RUN chmod +x /docker-entrypoint.sh
+ENTRYPOINT ["/docker-entrypoint.sh"]

app.py

@@ -11,8 +11,7 @@
 
 app = Flask(__name__)
 api = Api(app)
-app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
-app.config['SQLALCHEMY_DATABASE_URI'] = 'postgresql://postgres:postgres@localhost:5432/user_api'
+app.config.from_object('config.Config')
 db = SQLAlchemy(app)
 migrate = Migrate(app, db)
 

config.py

@@ -0,0 +1,18 @@
+import os
+
+
+class Config:
+
+    # General Config
+    TESTING = True
+    DEBUG = True
+
+    # Database
+    SQLALCHEMY_DATABASE_URI = os.environ.get('SQLALCHEMY_DATABASE_URI',
+                                             'postgresql+psycopg2://postgres:postgres@localhost:5432/user_api')
+    SQLALCHEMY_USERNAME = 'postgres'
+    SQLALCHEMY_PASSWORD = 'postgres'
+    SQLALCHEMY_DATABASE_NAME = 'user_api'
+    SQLALCHEMY_TABLE = 'migrations'
+    SQLALCHEMY_DB_SCHEMA = 'public'
+    SQLALCHEMY_TRACK_MODIFICATIONS = False

docker-compose.yml

@@ -0,0 +1,36 @@
+version: '3.7'
+networks:
+    internal:
+        driver: bridge
+
+services:
+  api:
+    build: .
+    depends_on:
+      - db
+    environment:
+      STAGE: test
+      SQLALCHEMY_DATABASE_URI: postgresql://postgres:postgres@postgres_python_api:5432/user_api
+    networks:
+      - internal
+    ports:
+      - 5000:5000
+    volumes:
+      - ./app:/usr/src/app/app
+      - ./migrations:/usr/src/app/migrations
+    restart: always
+
+  db:
+    container_name: postgres_python_api
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: user_api
+    image: postgres:latest
+    networks:
+      - internal
+    ports:
+      - 5405:5432
+    restart: always
+    volumes:
+      - ./postgres-data:/var/lib/postgresql/data

docker-entrypoint.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+set -e
+flask db upgrade
+flask run

migrations/versions/32930e0f95c8_.py

@@ -0,0 +1,34 @@
+"""empty message
+
+Revision ID: 32930e0f95c8
+Revises: 
+Create Date: 2021-05-24 22:05:44.443631
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '32930e0f95c8'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('user_model',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(length=150), nullable=False),
+    sa.Column('login', sa.String(length=50), nullable=False),
+    sa.Column('email', sa.String(length=100), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('user_model')
+    # ### end Alembic commands ###

migrations/versions/c34557db7f12_.py

@@ -1,8 +1,9 @@
-Flask_Migrate==3.0.0
-SQLAlchemy==1.4.15
-Flask_SQLAlchemy==2.5.1
 Flask_RESTful==0.3.8
-Flask==2.0.0
 alembic==1.6.2
+Flask_SQLAlchemy==2.5.1
+SQLAlchemy==1.4.15
+Flask_Migrate==3.0.0
+Flask_Caching==1.10.1
+Flask==2.0.0
 gunicorn==20.1.0
 psycopg2-binary==2.8.6