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A set of utilities for placing a message onto a queue for an emailer listener to receive

Project description

mq_email_notifier

Introduction

A set of utilities that provides standard methods to place messages that on a queue that have data to be emailed.

Technology Stack

Language

Python

Development Operations

Docker Compose

Configuration

This package reads configuration values from environment variables.

Installation

$ pip install -i https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple/lts-mqemailnotifier
$ python
>>> from mqresources import mqutils
>>> mqutils.notify_email_message("My Subject", "My Text Body", email@domain.com)

Local Development Environment Setup Instructions

1: Clone the repository to a local directory

git clone git@github.huit.harvard.edu:harvard-lts/mq_email_notifier.git

2: Create app config

Create config file for environment variables
  • Make a copy of the config example file ./env-example.txt
  • Rename the file to .env
  • Replace placeholder values as necessary

Note: The config file .env is specifically excluded in .gitignore and .dockerignore, since it contains credentials it should NOT ever be committed to any repository.

3: Start

START

To build the image without the cache, run the build command with the --no-cache option. The no cache option is required when updating any dependencies.

docker-compose -f docker-compose-local.yml up -d --build --force-recreate

4: Open a shell in the container

Run docker exec to execute a shell in the container by name

Open a shell using the exec command to access the 'email_notifier container.

docker exec -it email_notifier bash

5: Run tests

pytest

6: Install dependencies

This step is only required if additional python dependencies must be installed. Update the requirements.txt inside the container to install new python packages in the project. If the dependencies are required for the package to run, they also must be included in the install_requires section of setup.py.

Install a new pip package

Once inside the mps-mqutils container, run the pip install command to install a new package and update the requirements text file.

pip install packagename && pip freeze > requirements.txt
Add dependencies to setup

Add the names of the dependencies to the install_requires section of setup.py. Read more about adding dependencies in this article Specifying dependencies.

7: Build and publish the package

Step 7A: Prepare the distribution

  • Update the version number in setup.py
  • To publish a pre-release version, add a letter and a number after the version number e.g. 0.0.1a1
  • Remove the old dist/ directory from the previous build if necessary

Step 7B: Build the distribution

Once inside the container, build the distribution.

python3 setup.py sdist bdist_wheel

A new directory dist will be created in the container.

Step 7C: Register for an account

Register for an account on the test python package repository. Enable two-factor authentication for logins. Create a token.

Step 7D: Upload package to the test repository

Publish the package to the test repository testpypi before publishing it to the production repository.

python3 -m twine upload --repository testpypi dist/*

Step 7E: Test the package

Open the package in the repository and view the version history.

https://test.pypi.org/project/lts-mqemailnotifier/1.0.0/

Read Installation in this document for instructions on how to install and test the package in another project or environment.

8: Stop

STOP AND REMOVE

This command stops and removes all containers specified in the docker-compose-local.yml configuration. This command can be used in place of the 'stop' and 'rm' commands.

docker-compose -f docker-compose-local.yml down

More information

Read the documenation for more information on building and publishing the distribution.

Project details


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