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wubloader
mirror of https://github.com/ekimekim/wubloader
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Mike Lang f50276bd01 backfiller: Expose recent_cutoff as CLI arg and increase it to 120s default 
In testing, GDQ's stream delay went up over 1min, which caused backfillers to backfill
segments at the same time they were downloaded. We increase the window for now,
and also make it configurable.
backfiller backfiller: Expose recent_cutoff as CLI arg and increase it to 120s default
common Backfiller: ignore temp segments
cutter cutter: Fix a failure mode where we never recover from a DB conn failure in TranscodeChecker
downloader Audit and fix all usage of dateutil
monitoring monitoring fixes
nginx Fix nginx when some services are disabled
restreamer restreamer: Fix wrong name for parse function
sheetsync sheetsync: Fix a failure mode where we never recover from a DB conn failure
thrimshim Cleanup from Ekim's comments, removed auth placeholder until I know what I'm doing.
.gitignore Add some existing scripts for setting up prometheus
.travis.yml travis.yml: Make script into individual lines
DATABASE.md database: Add constraints on edit inputs that they must be non-NULL if state != UNEDITED
LICENSE Licence under MIT
README.md Set up a docker compose file to run all images
build Add nginx service that provides a frontend to all the other services
docker-compose.jsonnet Fix nginx when some services are disabled
generate-docker-compose generate-docker-compose: Clean up the container afterwards
generate-flamegraph generate-flamegraph: Script to create a flamegraph by querying prometheus
initial-design-doc.pdf Add initial design doc

README.md

Wubloader is a system for saving, re-serving and cutting into videos of a target twitch (or probably other HLS, but some twitch specifics are assumed) stream.

It was designed to serve the needs of the Video Strike Team as part of Desert Bus For Hope.

A full design doc can be read at initial-design-doc.pdf, but a brief overview of the components:

  • Downloader grabs segments from twitch and saves them to disk
  • Restreamer serves segments from disk as well as playlist files allowing them to be streamed
  • Backfiller queries restreamers of other servers in order to pick up segments this server doesn't have already, ie. it replicates missing segments.
  • Cutter interacts with a database to perform cutting jobs
  • Sheet Sync syncs specifc database columns to a google doc which is the primary operator interface.

Usage

All components are built as docker images. Components which access the disk expect a shared directory mounted at /mnt.

A docker-compose file is provided to run all components. See docker-compose.jsonnet to set configuration options, then generate the compose file with ./generate-docker-compose. Then run docker-compose up.