plastron-web

plastron-web

HTTP server for synchronous remote operations

Running with Python

As a Flask application:

flask --app plastron.web:create_app("/path/to/docker-plastron.yml") run

To enable debugging, for hot code reloading, set FLASK_DEBUG=1 either on the command line or in a .env file:

FLASK_DEBUG=1 flask --app plastron.web:create_app("/path/to/docker-plastron.yml") run

Using the console script entrypoint, which runs the application with the Waitress WSGI server:

plastrond-http

Docker Image

The plastron-stomp package contains a Dockerfile for building the plastrond-http Docker image.

Building

Important: This image MUST be built from the main plastron project directory, in order to include the other plastron packages in the build context.

docker build -t docker.lib.umd.edu/plastrond-http:latest \
    -f plastron-web/Dockerfile .

Running with Docker Swarm

This repository contains a compose.yml file that defines part of a plastrond Docker stack intended to be run alongside the umd-fcrepo-docker stack. This repository's configuration adds a plastrond-http container.

# if you are not already running in swarm mode
docker swarm init

# build the image
docker build -t docker.lib.umd.edu/plastrond-http:latest \
    -f plastron-web/Dockerfile .

# Copy the docker-plastron-template.yml and edit the configuration
cp docker-plastron.template.yml docker-plastron.yml
vim docker-plastron.yml

# deploy the stack to run the HTTP webapp
docker stack deploy -c plastron-web/compose.yml plastrond

To watch the logs:

docker service logs -f plastrond_http

To stop the HTTP service:

docker service rm plastrond_http

Configuration

The application is configured through environment variables.

Name	Value	Default
JOBS_DIR	Root directory for storing job information	jobs