Dockerfiles

README.md

Dockerfiles

A collection of dockerfiles for Java, Python and Angular

django-entrypoint.sh

#!/bin/bash

echo "Starting Redis"
/usr/bin/redis-server &

echo "Starting Celery Worker"
# TODO --uid and --gid options are required but throwing permission errors
# else this warning will show up RuntimeWarning:You're running the worker with superuser privileges:this is absolutely not recommended
# celery --app=INSERTAPPNAME worker --loglevel=info --uid=nobody --gid=nogroup &
#celery --app=INSERTAPPNAME worker --loglevel=info &
celery --app=INSERTAPPNAME worker --beat --scheduler django --loglevel=info &

echo "Collecting Static Files"
python3 manage.py collectstatic --noinput

echo "Applying database migrations"
python3 manage.py migrate

echo "Loading Policies"
python3 manage.py load-policies

echo "Calling createadmin to create admin user if not present."
python3 manage.py createadmin

echo "Starting server"
exec gunicorn INSERTAPPNAME.wsgi:application --bind 0.0.0.0:9600 --log-level=debug --workers 3 --timeout 90

dockerfile-angular

# sudo docker build -t INSERTIMAGENAME .
# LOCAL - sudo docker run --network=host --log-opt max-size=10m INSERTIMAGENAME

### Stage 1: Build the application
FROM node:12-slim as build
RUN npm install -g @angular/cli@12.1.2

WORKDIR /app

COPY package*.json /app/
RUN npm install

COPY . /app/
RUN ng build


# Stage 2: Serve app with nginx server
FROM nginx:latest

# Copy the build output to replace the default nginx contents.
COPY --from=build /app/dist/ /usr/share/nginx/html

EXPOSE 80

dockerfile-java

# sudo docker build -t INSERTIMAGENAME .
# LOCAL - sudo docker run --network=host --log-opt max-size=10m INSERTIMAGENAME

### Build stage
FROM maven:3.6.0-jdk-11-slim AS build

WORKDIR /app
COPY pom.xml .

# resolve maven dependencies
RUN mvn clean package -Dmaven.test.skip -Dmaven.main.skip -Dspring-boot.repackage.skip && rm -r target/

COPY src ./src

# build the app (no dependency download here)
RUN mvn clean package -Dmaven.test.skip

# # https://stackoverflow.com/questions/53929866/spring-boot-to-exclude-connecting-to-database-during-maven-build
# # Else, it will try connecting to a db, and the build will fail, since db conn are supplied at runtime.
# RUN mvn -f /app/pom.xml clean install -DskipTests

### Package stage
FROM openjdk:11-jre-slim
COPY --from=build /app/target/INSERTAPPJARNAME.jar /usr/local/lib/INSERTAPPJARNAME.jar
EXPOSE INSERTPORTNUM
ENTRYPOINT ["java","-jar","/usr/local/lib/INSERTAPPJARNAME.jar"]

dockerfile-python

# INFO - WHY NOT TO USE ALPINE
## https://pythonspeed.com/articles/alpine-docker-python/


####
FROM ubuntu:20.04


# author/ maintainer
MAINTAINER raunak-r


# ubuntu upgrades
RUN apt-get update && \
	apt-get -y upgrade && \
	apt-get -y install curl
# RUN apt-get clean && apt-get -y autoremove && apt-get -y autoclean


# Install frontend dependencies
# RUN curl -sL https://deb.nodesource.com/setup_lts.x | bash -
# RUN apt-get install -y nodejs
# RUN apt-get install -y gcc g++ make
# RUN node --version && \
# 	npm --version

# RUN npm uninstall -g @angular/cli@6.2.9
# RUN npm install -g @angular/cli@6.2.9


# Install backend dependencies
RUN apt-get install -y build-essential libsasl2-dev python3-dev libldap2-dev libssl-dev libffi-dev libpq-dev python3-pip
RUN apt-get install -y libmysqlclient-dev default-libmysqlclient-dev
RUN pip3 install --upgrade virtualenv && \
	pip3 install --upgrade setuptools && \
	pip3 install --upgrade Cython
RUN apt-get install -y redis-server


COPY ./pybackend/requirements.txt /app/pybackend/
RUN pip3 install prompt-toolkit==1.0.15
RUN pip3 install -r /app/pybackend/requirements.txt


## Everything above is constant and code-agnostic, which helps reduce the build time.


# Copy the main code folder inside the container
COPY . /app


# Grant folder permissions
# RUN chmod +x /app/frontend/
RUN mkdir /app/staticfiles/
RUN chmod +x /app/staticfiles/
# RUN chmod -R 777 /app/frontend/
# RUN mkdir /.npm
# RUN chmod -R 777 /.npm


# Remaining Frontend and Backend Installations
# WORKDIR /app/frontend/
# RUN npm install
# RUN ng build --prod

# RUN npm init
# RUN npm run-script build
# RUN ng postinstall


########## ENVIRONMENTS
EXPOSE INSERTPORTNUM
##########


# Run the django app without using a script
# WORKDIR /app/pybackend/
# CMD python3 manage.py migrate
# CMD python3 manage.py createadmin
# CMD python3 manage.py runsslserver 0.0.0.0:9600
# CMD exec gunicorn INSERTAPPNAME.wsgi:application --bind 0.0.0.0:9600 --log-level=debug --workers 3 --timeout 90


# Run django using a script so that migrate command can make use of correct env values
WORKDIR /app/pybackend/
RUN chmod +x django-entrypoint.sh
ENTRYPOINT ["/app/pybackend/django-entrypoint.sh"]