Install Oracle Instant client into Docker container for Python cx_Oracle

Question

I\'m trying to connect to an Oracle database at my company through my docker container that contains some of my python scripts with the package cx_Oracle. After i build and

Answer 1

After many hours trying it, I finally solved it with this Dockerfile

Note I am using python 3.7, Django 3.0, Oracle Database 12c and Pipenv for package management

FROM python:3.7.5-slim-buster

# Installing Oracle instant client
WORKDIR    /opt/oracle
RUN        apt-get update && apt-get install -y libaio1 wget unzip \
            && wget https://download.oracle.com/otn_software/linux/instantclient/instantclient-basiclite-linuxx64.zip \
            && unzip instantclient-basiclite-linuxx64.zip \
            && rm -f instantclient-basiclite-linuxx64.zip \
            && cd /opt/oracle/instantclient* \
            && rm -f *jdbc* *occi* *mysql* *README *jar uidrvci genezi adrci \
            && echo /opt/oracle/instantclient* > /etc/ld.so.conf.d/oracle-instantclient.conf \
            && ldconfig

WORKDIR    /app
COPY       . .  # Copy my project folder content into /app container directory
RUN        pip3 install pipenv
RUN        pipenv install
EXPOSE     8000
# For this statement to work you need to add the next two lines into Pipfilefile
# [scripts]
# server = "python manage.py runserver 0.0.0.0:8000"
ENTRYPOINT ["pipenv", "run", "server"]

Answer 2

One solution is to try:

FROM python:3.7.4-slim-buster

RUN apt-get update && apt-get install -y libaio1 wget unzip

WORKDIR /opt/oracle
RUN wget https://download.oracle.com/otn_software/linux/instantclient/instantclient-basiclite-linuxx64.zip && \
    unzip instantclient-basiclite-linuxx64.zip && rm -f instantclient-basiclite-linuxx64.zip && \
    cd /opt/oracle/instantclient* && rm -f *jdbc* *occi* *mysql* *README *jar uidrvci genezi adrci && \
    echo /opt/oracle/instantclient* > /etc/ld.so.conf.d/oracle-instantclient.conf && ldconfig
RUN python -m pip install cx_Oracle

If you use a different base image you may not need to explicitly install unzip or libaio1. If you're happy using ADD, then you won't need wget either.

Also there is a recent Oracle webcast recording discussing cx_Oracle and Docker here.

Update: A new blog post series on this is at Docker for Oracle Database Applications in Node.js and Python.

Update 2: Oracle has Python Dockerfiles at https://github.com/oracle/docker-images/tree/master/OracleLinuxDevelopers