python-mysql-docker

Creating a dockerized python image with pymysql module

myapp.py

This file contains the python source code which uses pymysql module and connects to mysql database to perform SQL operation

requirements.txt

This file will contain all the required modules to be installed to support the code.

Dockerfile

This file contains the instructions to build a customized docker image. A python base image python:3.8-slim-buster is used and a customized imae is built by copying source code and installing dependencies.

Build Docker file

docker build --tag py-mysql-app .

Sending build context to Docker daemon  51.71kB
Step 1/6 : FROM python:3.8-slim-buster
3.8-slim-buster: Pulling from library/python
b4d181a07f80: Pull complete 
de8ecf497b75: Pull complete 
6ea9cb124572: Pull complete 
9a8aa9d08ec5: Pull complete 
360b2e4ced96: Pull complete 
Digest: sha256:bd12f13a9b40f7fbb037bb98f09bda8cbc8e214035b49913e841a5369a50fff4
Status: Downloaded newer image for python:3.8-slim-buster
 ---> 0e0d73ddd34d
Step 2/6 : WORKDIR /app
 ---> Running in bd676e5dc8ab
Removing intermediate container bd676e5dc8ab
 ---> 1b7e35afa6b8
Step 3/6 : COPY requirements.txt requirements.txt
 ---> f93f04a82d27
Step 4/6 : RUN pip3 install -r requirements.txt
 ---> Running in 97184a53833b
Collecting pymysql
  Downloading PyMySQL-1.0.2-py3-none-any.whl (43 kB)
Installing collected packages: pymysql
Successfully installed pymysql-1.0.2
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtu
al environment instead: https://pip.pypa.io/warnings/venv
Removing intermediate container 97184a53833b
 ---> 8e8e584c6755
Step 5/6 : COPY . .
 ---> 30a513e96ed8
Step 6/6 : CMD [ "python3", "/app/myapp.py"]
 ---> Running in c6dfb0785fd6
Removing intermediate container c6dfb0785fd6
 ---> d87a2b258a74
Successfully built d87a2b258a74
Successfully tagged py-mysql-app:latest

Tag docker image

docker tag py-mysql-app:latest py-mysql-app:1.0

List docker image

docker images


REPOSITORY                            TAG               IMAGE ID       CREATED         SIZE
py-mysql-app                          1.0               d87a2b258a74   2 minutes ago   120MB

Run the docker image as container

docker run py-mysql-app:1.0