A web user interface and API for our reproducible builds of MirageOS unikernels and host system tools.

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README.md

Builder-web - a web frontend for reproducible builds

Builder-web takes in submissions of builds, typically from builder, and displays the produced artifacts in a way that makes it easy to compare checksums and build status. Produced binaries can be downloaded and executed. builds.robur.coop itself runs builder-web.

Overview

Builder-web is a single binary web server using a sqlite3 database with versioned schemas. Finished builds from builder are uploaded to builder-web, stored and indexed in the database and presented in the web interface to the user. Users can:

Get an overview of jobs - a job is typically script or opam package that is run and builds an artifact,
Browse all builds of a job - each job may have multiple builds, that are executed periodically by builder
Browse individual build and download artifacts and build information for reproducing the same binary.
Compare two builds, observing the differences in used opam packages, environment variables, and system packages.
Search for the SHA-256 hash of a binary to view a build that resulted in that binary.

Installation

Installing from source can be done with opam: opam install builder-web.

We also provide reproducible binary packages.

Setup

Builder-web consists of a binary builder-web that runs a web server on port 3000 listening on all interfaces by default. These values can be changed with the --port and --host flags respectively. See builder-web --help for more information.

Service scripts for FreeBSD and systemd are provided.

The web server expects a sqlite3 database in its data directory. An empty database can be created with builder-db migrate.

Database migrations

The sqlite3 database builder-web uses contains versioning information. On every schema change the database schema version is updated, and migration and rollback scripts are provided. The tool for database migrations is builder-migrations. See the builder-migrations --help output for each migration for further details.