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buildpacks
Ruby2024–2025
heroku / buildpacks

buildpacks

Heroku Cloud Native Buildpacks overview and tutorials

Learning & ReferenceDevOps & Cloud
Explore on GitHubRead Hacker News discussions
2Distinct people
9Mentions
0Explicit recommenders
75GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Heroku Cloud Native Buildpacks overview and tutorials

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by month9 dated mentions

Observed mentions: 2024-03-21 14:28:23 UTC to 2025-04-05 01:05:24 UTC.

012342024-03-01 00:00:00 UTC to 2024-04-01 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsMar 20242024-04-01 00:00:00 UTC to 2024-05-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-05-01 00:00:00 UTC to 2024-06-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-06-01 00:00:00 UTC to 2024-07-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2024-07-01 00:00:00 UTC to 2024-08-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-08-01 00:00:00 UTC to 2024-09-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-09-01 00:00:00 UTC to 2024-10-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsSep 20242024-10-01 00:00:00 UTC to 2024-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-01 00:00:00 UTC to 2024-12-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-12-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 4 mentions; 0 submissions, 4 comments2025-01-01 00:00:00 UTC to 2025-02-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2025-02-01 00:00:00 UTC to 2025-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-03-01 00:00:00 UTC to 2025-04-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-04-01 00:00:00 UTC to 2025-05-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsApr 2025

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Mar 20242024-03-01 00:00:00 UTC2024-04-01 00:00:00 UTC110
Apr 20242024-04-01 00:00:00 UTC2024-05-01 00:00:00 UTC000
May 20242024-05-01 00:00:00 UTC2024-06-01 00:00:00 UTC000
Jun 20242024-06-01 00:00:00 UTC2024-07-01 00:00:00 UTC202
Jul 20242024-07-01 00:00:00 UTC2024-08-01 00:00:00 UTC000
Aug 20242024-08-01 00:00:00 UTC2024-09-01 00:00:00 UTC000
Sep 20242024-09-01 00:00:00 UTC2024-10-01 00:00:00 UTC000
Oct 20242024-10-01 00:00:00 UTC2024-11-01 00:00:00 UTC000
Nov 20242024-11-01 00:00:00 UTC2024-12-01 00:00:00 UTC000
Dec 20242024-12-01 00:00:00 UTC2025-01-01 00:00:00 UTC404
Jan 20252025-01-01 00:00:00 UTC2025-02-01 00:00:00 UTC101
Feb 20252025-02-01 00:00:00 UTC2025-03-01 00:00:00 UTC000
Mar 20252025-03-01 00:00:00 UTC2025-04-01 00:00:00 UTC000
Apr 20252025-04-01 00:00:00 UTC2025-05-01 00:00:00 UTC101

What Hacker News says

9 sources
schneems·Dec 30, 2024
Hi HN . This is my post. Somewhat surprised to see it on the front page. This post was written for an in person hackday for RubyConf, but it links out to some async tutorials for using Cloud Native Buildpacks like these ones that are programmatically generated to guarantee consistency and correctness. https://github.com/heroku/buildpacks/tree/main/docs#use Since that event, we’ve added 8 tutorials for using CNBs with .NET, Go, Java (Gradle), Java (Maven), Node.JS, PHP, Python, Ruby, and Scala. Let me know if you’ve got questions on either using a CNB to build an OCI image or anything about libcnb.rs or our Rust stack for buildpack development.
In RubyConf 2024: Cloud Native Buildpack Hackday (and other Ruby deploy tools, too)
schneems·Dec 3, 2024
One big part that I'm personally excited about is support for Cloud Native Buildpacks. It's an open spec, part of the CNCF, and produces container images. You can use it to debug locally and can try it out now https://github.com/heroku/buildpacks/blob/main/docs/ruby/REA.... To go along with that we've built and maintain a Rust framework for writing CNBs https://github.com/heroku/libcnb.rs. I maintain the Ruby CNB and so I'm pretty excited to see some of my stuff in action. > Heroku already supports building and deploying containers Kinda. Heroku created a container ecosystem before OCI images were a thing. Apps deployed to the current Cedar infrastructure are deployed as "slugs" basically a tgz of the application directory that's loaded onto an LXC container, and unzipped to run on a base image (also called a stack) https://devcenter.hero
Read the rest
ku.com/articles/slug-compiler. One big benefit of moving towards a standards compliant future instead of homebrew, is that customers also have access to that ecosystem. That's what enables things like being able to run and debug application images locally. It's the standards and community. We went fast and blazed some trails, now we're aiming to "go far," together with the community.
In .NET Support on Heroku
schneems·Jun 23, 2024
Bootstrapping and different behavior for different versions and not being able to use the dependency ecosystem really make it a lot more difficult than people realize if you’re trying to “script” at scale. I’ve used rust for this task but people get mad that I’m calling it a “script”. “That’s not a script that’s a program” which…sure. But so maybe we need another term for it? “Production-scripts” or something. My experience is rewriting Ruby and bash buildpacks for the open spec CNCF Cloud Native Buildpack project (CNB) https://github.com/heroku/buildpacks I agree that Ruby is easier to start and grow complexity, that would be a good place to start.
In Ruby: A great language for shell scripts
schneems·Jun 19, 2024
When people say “scripts” many time it’s right after “deploy” which is my target area. I’m not trying to take away from the bash conversation, I’m trying to find allies who care about writing the best possible “scripts” (and script adjacent programs) in one or more languages. One of the most recent things I worked on was a hybrid of bash and rust. So I still write a fair share of bash. > scripts will always have their place 100% agree, hence all the caveats. I resonated with the article in that it was talking about ways to make your code faster, better, etc. It’s my experience that few aim to write a suite of bash scripts that stay in production for a decade+. It just grows that way because it was the lowest cost, lowest effort thing to do. To your point. I think content like this is a really good first step, but what about a second step
Read the rest
when it’s no longer enough or you realize this adhoc “temporary fix” utility is now the linchpin of your team? One idea is to rewrite in another language. If not the whole thing, a subsection. I tried Ruby scripting (Ruby dev since 2006) and while I feel it’s better than bash (to maintain) it still has some strong downsides like the need to bootstrap with an interpreter. Which eats into the upsides. Bash and Ruby struggle with sharing or extending functionality. Bash relies on system commands and Ruby relies on gems/libraries. And in a lot of these adhoc weird situations I find myself in I cannot install packages let alone bundle install libraries. Then you mix in interoperability of gnu versus bsd tools and throw some windows in the mix and it can get really unwieldy really fast. On the deploy front here’s the CNB Rust project https://github.com/heroku/libcnb.rs And docs for people who might want to use (but not author) them https://github.com/heroku/buildpacks.
In Advanced Shell Scripting Techniques: Automating Complex Tasks with Bash

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