[{"data":1,"prerenderedAt":792},["ShallowReactive",2],{"/en-us/blog/observations-on-how-to-iterate-faster":3,"navigation-en-us":38,"banner-en-us":438,"footer-en-us":448,"blog-post-authors-en-us-David O'Regan":688,"blog-related-posts-en-us-observations-on-how-to-iterate-faster":703,"assessment-promotions-en-us":743,"next-steps-en-us":782},{"id":4,"title":5,"authorSlugs":6,"body":8,"categorySlug":9,"config":10,"content":14,"description":8,"extension":25,"isFeatured":12,"meta":26,"navigation":27,"path":28,"publishedDate":20,"seo":29,"stem":33,"tagSlugs":34,"__hash__":37},"blogPosts/en-us/blog/observations-on-how-to-iterate-faster.yml","Observations On How To Iterate Faster",[7],"david-oregan",null,"engineering",{"slug":11,"featured":12,"template":13},"observations-on-how-to-iterate-faster",false,"BlogPost",{"title":15,"description":16,"authors":17,"heroImage":19,"date":20,"body":21,"category":9,"tags":22},"Why iteration helps increase the merge request rate","How the Monitor:Health team has been able to increase the merge request rate using better iteration, a bias for action, and by writing things down.",[18],"David O'Regan","https://res.cloudinary.com/about-gitlab-com/image/upload/v1749666603/Blog/Hero%20Images/book.jpg","2020-05-06","\nThis blog post was originally published on the GitLab Unfiltered blog. It was reviewed and republished on 2020-05-21.\n\n\nDo you know much about fighter jets? It's okay if you don't, neither did I until I became a software developer. While it seems like a rather strange set of things to see a correlation with, they are intrinsically related through a man named [John Boyd](https://en.wikipedia.org/wiki/John_Boyd_(military_strategist)) who was a military strategist and a fighter pilot.\n\nBoyd was rather famous in the Air Force for a law he coined, which we're going to use to demonstrate the difference between iterative and recursive approaches to software development, why we favor it in the [Monitor:Health team](https://handbook.gitlab.com/handbook/engineering/monitoring/) and why you might want to favor it too.\n\n_Boyd's Law of Iteration states that **speed** of iteration beats quality of iteration_\n\nThis law was developed by Boyd while observing dogfights between MiG-15s and F-86s. Even though the MiG-15 was considered a superior aircraft by aircraft designers, the F-86 was favored by pilots. The reason it was favored was simple: in one-on-one dogfights with MiG-15s, the F-86 won nine times out of ten.\n\nWhat's happening here? If the MiG is the better aircraft, why would the F-86 win the majority of the fights? Well according to Boyd who was one of the best dog-fighters in history suggested:\n\n> That the primary determinant to winning dogfights was observing, orienting, planning, and acting **faster** not better.\n\nThis leads to Boyd's Law of Iteration: Speed of iteration beats quality of iteration. What's pretty incredible is that you will find this same scheme throughout every section of modern software development:\n\n- Writing unit tests? Keep them small and lean so they can be run faster.\n- Writing usability tests? They work best when they're lean and you can quickly discard what's not working.\n- Writing a function, class, or feature? Start with the smallest, [most boring solution](https://handbook.gitlab.com/handbook/values/#boring-solutions) and iterate.\n- Doing an Agile approach? The quicker the better you'll often find.\n- Software in general is about failing early and often.\n\nSo lets pretend I've convinced you with some obscure fighter jet references and now you're ready to break down those merge requests and iterate quicker than you've ever iterated. Awesome! Let's talk about how to foster a team environment that allows for iteration, because that's the key here at GitLab. When you get started on this pilgrimage to [11 amazing merge requests per month as a goal](https://handbook.gitlab.com/handbook/product/groups/product-analysis/engineering/metrics/#mr-rate) you need to keep one very important thing in mind:\n\nIt's a team effort. While you as an individual developer will do an amazing job by hammering in on this skill, the real difference is made when you look at iteration as a tool to lift the team up. Think of yourself as the pilot that wants to get that faster iteration in to cover your buddies.\n\n## Bias for action\n\nWhen I got started at GitLab I was introduced to the idea of really believing in iteration as a methodology because it's a [company value](https://handbook.gitlab.com/handbook/values/#iteration).\n\n> Decisions should be thoughtful, but delivering fast results requires the fearless acceptance of occasionally making mistakes.\n\nThis was highlighted in various ways by different people across the company, but something that really stuck out to me was hearing another team member refer to the Monitor:Health team as a \"team with a strong bias for action\". We don't really believe in being reactive, instead we want to be we want to always be proactively improving the product. This underlying belief system trickles down from our team leader into every discussion, decision, deliverable set, and ultimately, how we as developers see our own agency operating. We **believe** in action, that an open merge request (even if it's not perfect) is always better than nothing.\n\nAs we mentioned, we have a bias for action. So, when our team anticipates a problem, we create a merge request first before starting a discussion. I know for a lot of people this might seem a bit counterproductive – what if this is a wasted effort? When in reality, [starting at a merge request](https://handbook.gitlab.com/handbook/communication/#start-with-a-merge-request) is the best possible place for any real discussion. It helps create a living log for the conversation, and creates more visibility for the problem we are fixing.\n\n## All code is bad code: Impostor syndrome, course correction, and accepting failure\n\nI had a mentor at my old company who was a fantastic programmer, and many of the people on my team looked up to him. One Friday afternoon, he gave a presentation that really shaped my understanding of iteration. This talk, \"All code is bad code\" became rather famous in our small team because he mostly spoke about why the majority of the code he had written himself was ultimately bad code, and how the desire to **appear** smart is the number one barrier for people to become great software developers.\n\n> What you make with your code is how you express yourself, not the code itself - Eric Elliott\n\nProgramming is by its very nature difficult. As humans we're not particularly well-suited for deep and abstract logical thinking – our brains simply don't work like that by default and it's a learned skill for the most part. Being reminded of this is a humbling but freeing experience as it helps you move forward without fear. Every merge request you submit should be high quality but your definition of high quality should shift to mean delivering something useful to an end user.\n\nAt GitLab, we accept our limitations in that we might not know everything about the problem we're trying to solve. Instead, we lean heavily into the idea of the smallest, most [boring solutions](https://handbook.gitlab.com/handbook/values/#boring-solutions) that can be expanded upon quickly by collaborating with our team.\n\n> Our bias for action also allows us to course correct quickly.\n\nWe always accept there will be [uncertainty](https://handbook.gitlab.com/handbook/values/#accepting-uncertainty) in what we do as software developers but we don't let that stop us from trying to deliver an amazing product to our users.\n\nWhen we create a merge request, we do so with a [low sense of shame](https://handbook.gitlab.com/handbook/values/#low-level-of-shame) and [no ego](https://handbook.gitlab.com/handbook/values/#no-ego). This approach allows us to deliver fearlessly **even if we're wrong**.\n\nAs a team, this is the environment you want to foster because it helps create a wonderfully positive feedback loop: Low sense of shame > many merge requests submitted > more discussion > many iterations > ideally, the best possible collaborative results for the end user.\n\nThe core takeaway for team leaders is that **it's okay to make mistakes**. The best thing you can do as a team leader is to foster a safe place for developers to make mistakes and learn as they go.\n\nIf you're a developer, remember that **it's okay to make mistakes as long as you strive for course correction**.\n\n## Foster a healthy sense for urgency for writing things down\n\n> \"While you're thinking about doing it... just do it.\"\n\nIt's one of the things we do so well at GitLab in general it's writing things down. Documenting as we go is how we help our teampick up and go without needing to waste time on unnecessary communication.\n\nIt's safe to say that with our GitLab handbook being at [2,500,000 words](https://handbook.gitlab.com/handbook/about/#count-handbook-pages) and counting, the folks here take writing things down pretty seriously.\n\nAt GitLab, we believe this is also the path to a higher merge request rate.\n\nOn the Monitor:Health team and throughout GitLab believe in preserving our energy, capturing valuable conversations, and making them public to dispense this knowledge widely. As a new team member, I've seen this in action multiple times now. Over the course of my eight weeks at Gitlab, I can count on one hand the number of times I've had to ping a team member with a questions I could not find an answer to in our documentation. The discipline for keeping these notes really keeps the focus on delivering results since we don't have an excess of energy spent going back and forth with questions.\n\nIn my first four weeks at GitLab almost every single question I needed a answer to was already covered in the documentation someone else had already gone to the trouble of creating. Here is a list of some of my initial questions and links to the answers in GitLab documentation.\n\n- [How do I set up the local GitLab Development Kit?](https://gitlab.com/gitlab-org/gitlab-development-kit/-/blob/master/doc/howto/auto_devops/tips_and_troubleshooting.md)\n- [How do I set up the GitLab Development Kit with Prometheus?](https://gitlab.com/gitlab-org/gitlab-development-kit/-/blob/master/doc/howto/prometheus.md)\n- [How do I use embedded charts via Prometheus and Grafana?](https://docs.gitlab.com/ee/user/project/integrations/prometheus.html#embedding-gitlab-managed-kubernetes-metrics)\n- [How do I use the `@gitlab/ui` components?](https://gitlab.com/gitlab-org/gitlab-ui/-/blob/master/README.md)\n- [How do I handle styling in external projects?](https://gitlab.com/gitlab-org/gitlab-ui/-/blob/master/doc/css.md)\n- [How should components look and act on pages I am developing?](https://design.gitlab.com/)\n\nIf you can encourage your team to document solutions as problems arise, it can help developers deliver more.\n\n> Documentation is a love letter that you write to your future self. - Damian Conway\n\n## Tighten those feedback loops\n\n> Keep what works, disregard what doesn't.\n\nYou'll often notice that the feedback loop for tight-knit teams just gets tighter over time. People start to see patterns of what does and doesn't work as they work together over time. A good team should aim to address these patterns by keeping the ones that work and refining them but also by not being afraid to disregard the ones that don't work.\n\nRecently, the Monitor:Health team [delivered the first iteration of an incident management tool called the Status Page](https://about.gitlab.com/blog/how-we-built-status-page-mvc/). The team did an amazing job on the  [Status Page](https://gitlab.com/gitlab-org/status-page), with each team member really aiming to break problems into their smallest pieces and iterate quickly, which kept the overall merge request rate high for this project.\n\nThe post mortem of the development process is what made the biggest different. We came together as a team to discuss what aspects worked well and which aspects didn't with the end goal being to tighten our feedback loops so people can really work autonomously and asynchronously. It takes a lot of bravery to have a critical discussion about what didn't work publicly, and not just focus on all the things you have done well.\n\nHow does this play out? Well for us on the Monitor:Health team, it means getting better at refining issues to ensure that when they receive a `ready for development` label they are **truly** ready for anyone to pick up at any time and take it all the way to done. This really helps increase the overall merge request rate because developers don't need to sit through one to three feedback loops waiting for their questions to be answered, when they could be getting it done.\n\nFor an issue to have a [`ready for development` label](https://handbook.gitlab.com/handbook/product-development/how-we-work/product-development-flow/#build-phase-2-develop--test) it needs to have:\n\n- A clear definition of \"done\"\n- All the necessary conversations are already resolved inside the issue\n- Developer defines a clear set of expectations\n- Say whether tests are required\n- Say whether UX is needed\n\nWe are trying to enable **any** developer on the Monitor:Health team to read an issue with zero preexisting context and deliver a merge request related to the issue without needing to leave that issue. Remember, we're trying to [measure results not hours](https://handbook.gitlab.com/handbook/values/#measure-results-not-hours). The less time someone spends asking questions, the more time they can spend delivering results.\n\n> Hail to the issue, baby! - Duke Nukem if he was a software developer at GitLab\n\n## It's all about the team\n\nThe only reason we are able to create this level of velocity inside GitLab is because of the belief that we can and **should** iterate quickly. By having the support of the team across the main points in how to iterate, i.e., bias for action, low sense of shame, a healthy sense of urgency, and tight feedback loops is the bedrock that allows us to deliver results for customers via a better product.\n\nWell, that's all folks! I hope you enjoyed the read and learned something along the way. If you have any questions or want to suggest an improvement, drop me an email at: `doregan@gitlab.com`.\n\nWhen in doubt, iterate faster.\n\n## TL;DR, show me the proof\n\n![Results](https://about.gitlab.com/images/blogimages/iterate-faster/results.png){: .center}\n\nThe Monitor:Health frontend team has grown over time while increasing average merge request rate. The team's merge request rate reflects the current team size of four people.\n\n## Learn more\n\n- [GitLab Values](https://handbook.gitlab.com/handbook/values/)\n- [Boyds Law](https://blog.codinghorror.com/boyds-law-of-iteration/)\n- [All code is bad](https://www.stilldrinking.org/programming-sucks)\n- [Accepting failure](https://www.youtube.com/watch?v=UxvXgmZf6NU)\n\n[We're hiring](/jobs/) at GitLab, or consider [trying us out](/free-trial/) for free.\n\nCover image by [Aaron Burden](https://unsplash.com/photos/G6G93jtU1vE) on [Unsplash](https://www.unsplash.com)\n",[23,24],"inside 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statement",{"items":678},[679,682,685],{"text":680,"config":681},"Terms",{"href":508,"dataGaName":509,"dataGaLocation":456},{"text":683,"config":684},"Cookies",{"dataGaName":518,"dataGaLocation":456,"id":519,"isOneTrustButton":27},{"text":686,"config":687},"Privacy",{"href":513,"dataGaName":514,"dataGaLocation":456},[689],{"id":690,"title":691,"body":8,"config":692,"content":694,"description":8,"extension":25,"meta":698,"navigation":27,"path":699,"seo":700,"stem":701,"__hash__":702},"blogAuthors/en-us/blog/authors/david-oregan.yml","David Oregan",{"template":693},"BlogAuthor",{"name":18,"config":695},{"headshot":696,"ctfId":697},"https://res.cloudinary.com/about-gitlab-com/image/upload/v1749659853/Blog/Author%20Headshots/oregand-headshot.png","oregand",{},"/en-us/blog/authors/david-oregan",{},"en-us/blog/authors/david-oregan","CX5gLc3Gs5FrmvpMNVkBtC5zRi3vj8l3wJGnW0iSa6Y",[704,719,732],{"content":705,"config":717},{"title":706,"description":707,"authors":708,"heroImage":710,"date":711,"body":712,"category":9,"tags":713},"How to use GitLab Container Virtual Registry with Docker Hardened Images","Learn how to simplify container image management with this step-by-step guide.",[709],"Tim Rizzi","https://res.cloudinary.com/about-gitlab-com/image/upload/v1772111172/mwhgbjawn62kymfwrhle.png","2026-03-12","If you're a platform engineer, you've probably had this conversation:\n  \n*\"Security says we need to use hardened base images.\"*\n\n*\"Great, where do I configure credentials for yet another registry?\"*\n\n*\"Also, how do we make sure everyone actually uses them?\"*\n\nOr this one:\n\n*\"Why are our builds so slow?\"*\n\n*\"We're pulling the same 500MB image from Docker Hub in every single job.\"*\n\n*\"Can't we just cache these somewhere?\"*\n\nI've been working on [Container Virtual Registry](https://docs.gitlab.com/user/packages/virtual_registry/container/) at GitLab specifically to solve these problems. It's a pull-through cache that sits in front of your upstream registries — Docker Hub, dhi.io (Docker Hardened Images), MCR, and Quay — and gives your teams a single endpoint to pull from. Images get cached on the first pull. Subsequent pulls come from the cache. Your developers don't need to know or care which upstream a particular image came from.\n\nThis article shows you how to set up Container Virtual Registry, specifically with Docker Hardened Images in mind, since that's a combination that makes a lot of sense for teams concerned about security and not making their developers' lives harder.\n\n## What problem are we actually solving?\n\nThe Platform teams I usually talk to manage container images across three to five registries:\n\n* **Docker Hub** for most base images\n* **dhi.io** for Docker Hardened Images (security-conscious workloads)\n* **MCR** for .NET and Azure tooling\n* **Quay.io** for Red Hat ecosystem stuff\n* **Internal registries** for proprietary images\n\nEach one has its own:\n\n* Authentication mechanism\n* Network latency characteristics\n* Way of organizing image paths\n\nYour CI/CD configs end up littered with registry-specific logic. Credential management becomes a project unto itself. And every pipeline job pulls the same base images over the network, even though they haven't changed in weeks.\n\nContainer Virtual Registry consolidates this. One registry URL. One authentication flow (GitLab's). Cached images are served from GitLab's infrastructure rather than traversing the internet each time.\n\n## How it works\n\nThe model is straightforward:\n\n```text\nYour pipeline pulls:\n  gitlab.com/virtual_registries/container/1000016/python:3.13\n\nVirtual registry checks:\n  1. Do I have this cached? → Return it\n  2. No? → Fetch from upstream, cache it, return it\n\n```\n\nYou configure upstreams in priority order. When a pull request comes in, the virtual registry checks each upstream until it finds the image. The result gets cached for a configurable period (default 24 hours).\n\n```text\n┌─────────────────────────────────────────────────────────┐\n│                    CI/CD Pipeline                       │\n│                          │                              │\n│                          ▼                              │\n│   gitlab.com/virtual_registries/container/\u003Cid>/image   │\n└─────────────────────────────────────────────────────────┘\n                           │\n                           ▼\n┌─────────────────────────────────────────────────────────┐\n│            Container Virtual Registry                   │\n│                                                         │\n│  Upstream 1: Docker Hub ────────────────┐               │\n│  Upstream 2: dhi.io (Hardened) ────────┐│               │\n│  Upstream 3: MCR ─────────────────────┐││               │\n│  Upstream 4: Quay.io ────────────────┐│││               │\n│                                      ││││               │\n│                    ┌─────────────────┴┴┴┴──┐            │\n│                    │        Cache          │            │\n│                    │  (manifests + layers) │            │\n│                    └───────────────────────┘            │\n└─────────────────────────────────────────────────────────┘\n```\n\n## Why this matters for Docker Hardened Images\n\n[Docker Hardened Images](https://docs.docker.com/dhi/) are great because of the minimal attack surface, near-zero CVEs, proper software bills of materials (SBOMs), and SLSA provenance. If you're evaluating base images for security-sensitive workloads, they should be on your list.\n\nBut adopting them creates the same operational friction as any new registry:\n\n* **Credential distribution**: You need to get Docker credentials to every system that pulls images from dhi.io.\n* **CI/CD changes**: Every pipeline needs to be updated to authenticate with dhi.io.\n* **Developer friction**: People need to remember to use the hardened variants.\n* **Visibility gap**: It's difficulat to tell if teams are actually using hardened images vs. regular ones.\n\nVirtual registry addresses each of these:\n\n**Single credential**: Teams authenticate to GitLab. The virtual registry handles upstream authentication. You configure Docker credentials once, at the registry level, and they apply to all pulls.\n\n**No CI/CD changes per-team**: Point pipelines at your virtual registry. Done. The upstream configuration is centralized.\n\n**Gradual adoption**: Since images get cached with their full path, you can see in the cache what's being pulled. If someone's pulling `library/python:3.11` instead of the hardened variant, you'll know.\n\n**Audit trail**: The cache shows you exactly which images are in active use. Useful for compliance, useful for understanding what your fleet actually depends on.\n\n## Setting it up\n\nHere's a real setup using the Python client from this demo project.\n\n### Create the virtual registry\n\n```python\nfrom virtual_registry_client import VirtualRegistryClient\n\nclient = VirtualRegistryClient()\n\nregistry = client.create_virtual_registry(\n    group_id=\"785414\",  # Your top-level group ID\n    name=\"platform-images\",\n    description=\"Cached container images for platform teams\"\n)\n\nprint(f\"Registry ID: {registry['id']}\")\n# You'll need this ID for the pull URL\n```\n\n### Add Docker Hub as an upstream\n\nFor official images like Alpine, Python, etc.:\n\n```python\ndocker_upstream = client.create_upstream(\n    registry_id=registry['id'],\n    url=\"https://registry-1.docker.io\",\n    name=\"Docker Hub\",\n    cache_validity_hours=24\n)\n```\n\n### Add Docker Hardened Images (dhi.io)\n\nDocker Hardened Images are hosted on `dhi.io`, a separate registry that requires authentication:\n\n```python\ndhi_upstream = client.create_upstream(\n    registry_id=registry['id'],\n    url=\"https://dhi.io\",\n    name=\"Docker Hardened Images\",\n    username=\"your-docker-username\",\n    password=\"your-docker-access-token\",\n    cache_validity_hours=24\n)\n```\n\n### Add other upstreams\n\n```python\n# MCR for .NET teams\nclient.create_upstream(\n    registry_id=registry['id'],\n    url=\"https://mcr.microsoft.com\",\n    name=\"Microsoft Container Registry\",\n    cache_validity_hours=48\n)\n\n# Quay for Red Hat stuff\nclient.create_upstream(\n    registry_id=registry['id'],\n    url=\"https://quay.io\",\n    name=\"Quay.io\",\n    cache_validity_hours=24\n)\n```\n\n### Update your CI/CD\n\nHere's a `.gitlab-ci.yml` that pulls through the virtual registry:\n\n```yaml\nvariables:\n  VIRTUAL_REGISTRY_ID: \u003Cyour_virtual_registry_ID>\n\n  \nbuild:\n  image: docker:24\n  services:\n    - docker:24-dind\n  before_script:\n    # Authenticate to GitLab (which handles upstream auth for you)\n    - echo \"${CI_JOB_TOKEN}\" | docker login -u gitlab-ci-token --password-stdin gitlab.com\n  script:\n    # All of these go through your single virtual registry\n    \n    # Official Docker Hub images (use library/ prefix)\n    - docker pull gitlab.com/virtual_registries/container/${VIRTUAL_REGISTRY_ID}/library/alpine:latest\n    \n    # Docker Hardened Images from dhi.io (no prefix needed)\n    - docker pull gitlab.com/virtual_registries/container/${VIRTUAL_REGISTRY_ID}/python:3.13\n    \n    # .NET from MCR\n    - docker pull gitlab.com/virtual_registries/container/${VIRTUAL_REGISTRY_ID}/dotnet/sdk:8.0\n```\n\n### Image path formats\n\nDifferent registries use different path conventions:\n\n| Registry | Pull URL Example |\n|----------|------------------|\n| Docker Hub (official) | `.../library/python:3.11-slim` |\n| Docker Hardened Images (dhi.io) | `.../python:3.13` |\n| MCR | `.../dotnet/sdk:8.0` |\n| Quay.io | `.../prometheus/prometheus:latest` |\n\n### Verify it's working\n\nAfter some pulls, check your cache:\n\n```python\nupstreams = client.list_registry_upstreams(registry['id'])\nfor upstream in upstreams:\n    entries = client.list_cache_entries(upstream['id'])\n    print(f\"{upstream['name']}: {len(entries)} cached entries\")\n\n```\n\n## What the numbers look like\n\nI ran tests pulling images through the virtual registry:\n\n| Metric | Without Cache | With Warm Cache |\n|--------|---------------|-----------------|\n| Pull time (Alpine) | 10.3s | 4.2s |\n| Pull time (Python 3.13 DHI) | 11.6s | ~4s |\n| Network roundtrips to upstream | Every pull | Cache misses only |\n\n\n\n\nThe first pull is the same speed (it has to fetch from upstream). Every pull after that, for the cache validity period, comes straight from GitLab's storage. No network hop to Docker Hub, dhi.io, MCR, or wherever the image lives.\n\nFor a team running hundreds of pipeline jobs per day, that's hours of cumulative build time saved.\n\n## Practical considerations\nHere are some considerations to keep in mind:\n\n### Cache validity\n\n24 hours is the default. For security-sensitive images where you want patches quickly, consider 12 hours or less:\n\n```python\nclient.create_upstream(\n    registry_id=registry['id'],\n    url=\"https://dhi.io\",\n    name=\"Docker Hardened Images\",\n    username=\"your-username\",\n    password=\"your-token\",\n    cache_validity_hours=12\n)\n```\n\nFor stable, infrequently-updated images (like specific version tags), longer validity is fine.\n\n### Upstream priority\n\nUpstreams are checked in order. If you have images with the same name on different registries, the first matching upstream wins.\n\n### Limits\n\n* Maximum of 20 virtual registries per group\n* Maximum of 20 upstreams per virtual registry\n\n## Configuration via UI\n\nYou can also configure virtual registries and upstreams directly from the GitLab UI—no API calls required. Navigate to your group's **Settings > Packages and registries > Virtual Registry** to:\n\n* Create and manage virtual registries\n* Add, edit, and reorder upstream registries\n* View and manage the cache\n* Monitor which images are being pulled\n\n## What's next\n\nWe're actively developing:\n\n* **Allow/deny lists**: Use regex to control which images can be pulled from specific upstreams.\n\nThis is beta software. It works, people are using it in production, but we're still iterating based on feedback.\n\n## Share your feedback\n\nIf you're a platform engineer dealing with container registry sprawl, I'd like to understand your setup:\n\n* How many upstream registries are you managing?\n* What's your biggest pain point with the current state?\n* Would something like this help, and if not, what's missing?\n\nPlease share your experiences in the [Container Virtual Registry feedback issue](https://gitlab.com/gitlab-org/gitlab/-/work_items/589630).\n## Related resources\n- [New GitLab metrics and registry features help reduce CI/CD bottlenecks](https://about.gitlab.com/blog/new-gitlab-metrics-and-registry-features-help-reduce-ci-cd-bottlenecks/#container-virtual-registry)\n- [Container Virtual Registry documentation](https://docs.gitlab.com/user/packages/virtual_registry/container/)\n- [Container Virtual Registry API](https://docs.gitlab.com/api/container_virtual_registries/)",[714,715,716],"tutorial","product","features",{"featured":12,"template":13,"slug":718},"using-gitlab-container-virtual-registry-with-docker-hardened-images",{"content":720,"config":730},{"title":721,"description":722,"authors":723,"heroImage":725,"date":726,"category":9,"tags":727,"body":729},"How IIT Bombay students are coding the future with GitLab","At GitLab, we often talk about how software accelerates innovation. But sometimes, you have to step away from the Zoom calls and stand in a crowded university hall to remember why we do this.",[724],"Nick Veenhof","https://res.cloudinary.com/about-gitlab-com/image/upload/v1750099013/Blog/Hero%20Images/Blog/Hero%20Images/blog-image-template-1800x945%20%2814%29_6VTUA8mUhOZNDaRVNPeKwl_1750099012960.png","2026-01-08",[260,610,728],"open source","The GitLab team recently had the privilege of judging the **iHack Hackathon** at **IIT Bombay's E-Summit**. The energy was electric, the coffee was flowing, and the talent was undeniable. But what struck us most wasn't just the code — it was the sheer determination of students to solve real-world problems, often overcoming significant logistical and financial hurdles to simply be in the room.\n\n\nThrough our [GitLab for Education program](https://about.gitlab.com/solutions/education/), we aim to empower the next generation of developers with tools and opportunity. Here is a look at what the students built, and how they used GitLab to bridge the gap between idea and reality.\n\n## The challenge: Build faster, build securely\n\nThe premise for the GitLab track of the hackathon was simple: Don't just show us a product; show us how you built it. We wanted to see how students utilized GitLab's platform — from Issue Boards to CI/CD pipelines — to accelerate the development lifecycle.\n\nThe results were inspiring.\n\n## The winners\n\n### 1st place: Team Decode — Democratizing Scientific Research\n\n**Project:** FIRE (Fast Integrated Research Environment)\n\nTeam Decode took home the top prize with a solution that warms a developer's heart: a local-first, blazing-fast data processing tool built with [Rust](https://about.gitlab.com/blog/secure-rust-development-with-gitlab/) and Tauri. They identified a massive pain point for data science students: existing tools are fragmented, slow, and expensive.\n\nTheir solution, FIRE, allows researchers to visualize complex formats (like NetCDF) instantly. What impressed the judges most was their \"hacker\" ethos. They didn't just build a tool; they built it to be open and accessible.\n\n**How they used GitLab:** Since the team lived far apart, asynchronous communication was key. They utilized **GitLab Issue Boards** and **Milestones** to track progress and integrated their repo with Telegram to get real-time push notifications. As one team member noted, \"Coordinating all these technologies was really difficult, and what helped us was GitLab... the Issue Board really helped us track who was doing what.\"\n\n![Team Decode](https://res.cloudinary.com/about-gitlab-com/image/upload/v1767380253/epqazj1jc5c7zkgqun9h.jpg)\n\n### 2nd place: Team BichdeHueDost — Reuniting to Solve Payments\n\n**Project:** SemiPay (RFID Cashless Payment for Schools)\n\nThe team name, BichdeHueDost, translates to \"Friends who have been set apart.\" It's a fitting name for a group of friends who went to different colleges but reunited to build this project. They tackled a unique problem: handling cash in schools for young children. Their solution used RFID cards backed by a blockchain ledger to ensure secure, cashless transactions for students.\n\n**How they used GitLab:** They utilized [GitLab CI/CD](https://about.gitlab.com/topics/ci-cd/) to automate the build process for their Flutter application (APK), ensuring that every commit resulted in a testable artifact. This allowed them to iterate quickly despite the \"flaky\" nature of cross-platform mobile development.\n\n![Team BichdeHueDost](https://res.cloudinary.com/about-gitlab-com/image/upload/v1767380253/pkukrjgx2miukb6nrj5g.jpg)\n\n### 3rd place: Team ZenYukti — Agentic Repository Intelligence\n\n**Project:** RepoInsight AI (AI-powered, GitLab-native intelligence platform)\n\nTeam ZenYukti impressed us with a solution that tackles a universal developer pain point: understanding unfamiliar codebases. What stood out to the judges was the tool's practical approach to onboarding and code comprehension: RepoInsight-AI automatically generates documentation, visualizes repository structure, and even helps identify bugs, all while maintaining context about the entire codebase.\n\n**How they used GitLab:** The team built a comprehensive CI/CD pipeline that showcased GitLab's security and DevOps capabilities. They integrated [GitLab's Security Templates](https://gitlab.com/gitlab-org/gitlab/-/tree/master/lib/gitlab/ci/templates/Security) (SAST, Dependency Scanning, and Secret Detection), and utilized [GitLab Container Registry](https://docs.gitlab.com/user/packages/container_registry/) to manage their Docker images for backend and frontend components. They created an AI auto-review bot that runs on merge requests, demonstrating an \"agentic workflow\" where AI assists in the development process itself.\n\n![Team ZenYukti](https://res.cloudinary.com/about-gitlab-com/image/upload/v1767380253/ymlzqoruv5al1secatba.jpg)\n\n## Beyond the code: A lesson in inclusion\n\nWhile the code was impressive, the most powerful moment of the event happened away from the keyboard.\n\nDuring the feedback session, we learned about the journey Team ZenYukti took to get to Mumbai. They traveled over 24 hours, covering nearly 1,800 kilometers. Because flights were too expensive and trains were booked, they traveled in the \"General Coach,\" a non-reserved, severely overcrowded carriage.\n\nAs one student described it:\n\n*\"You cannot even imagine something like this... there are no seats... people sit on the top of the train. This is what we have endured.\"*\n\nThis hit home. [Diversity, Inclusion, and Belonging](https://handbook.gitlab.com/handbook/company/culture/inclusion/) are core values at GitLab. We realized that for these students, the barrier to entry wasn't intellect or skill, it was access.\n\nIn that moment, we decided to break that barrier. We committed to reimbursing the travel expenses for the participants who struggled to get there. It's a small step, but it underlines a massive truth: **talent is distributed equally, but opportunity is not.**\n\n![hackathon class together](https://res.cloudinary.com/about-gitlab-com/image/upload/v1767380252/o5aqmboquz8ehusxvgom.jpg)\n\n### The future is bright (and automated)\n\nWe also saw incredible potential in teams like Prometheus, who attempted to build an autonomous patch remediation tool (DevGuardian), and Team Arrakis, who built a voice-first job portal for blue-collar workers using [GitLab Duo](https://about.gitlab.com/gitlab-duo/) to troubleshoot their pipelines.\n\nTo all the students who participated: You are the future. Through [GitLab for Education](https://about.gitlab.com/solutions/education/), we are committed to providing you with the top-tier tools (like GitLab Ultimate) you need to learn, collaborate, and change the world — whether you are coding from a dorm room, a lab, or a train carriage. **Keep shipping.**\n\n> :bulb: Learn more about the [GitLab for Education program](https://about.gitlab.com/solutions/education/).\n",{"slug":731,"featured":12,"template":13},"how-iit-bombay-students-code-future-with-gitlab",{"content":733,"config":741},{"title":734,"description":735,"authors":736,"heroImage":737,"date":738,"category":9,"tags":739,"body":740},"Artois University elevates research and curriculum with GitLab Ultimate for Education","Artois University's CRIL leveraged the GitLab for Education program to gain free access to Ultimate, transforming advanced research and computer science curricula.",[724],"https://res.cloudinary.com/about-gitlab-com/image/upload/v1750099203/Blog/Hero%20Images/Blog/Hero%20Images/blog-image-template-1800x945%20%2820%29_2bJGC5ZP3WheoqzlLT05C5_1750099203484.png","2025-12-10",[610,260,715],"Leading academic institutions face a critical challenge: how to provide thousands of students and researchers with industry-standard, **full-featured DevSecOps tools** without compromising institutional control. Many start with basic version control, but the modern curriculum demands integrated capabilities for planning, security, and advanced CI/CD.\n\nThe **GitLab for Education program** is designed to solve this by providing access to **GitLab Ultimate** for qualifying institutions, allowing them to scale their operations and elevate their academic offerings. \n\nThis article showcases a powerful success story from the **Centre de Recherche en Informatique de Lens (CRIL)**, a joint laboratory of **Artois University** and CNRS in France. After years of relying solely on GitLab Community Edition (CE), the university's move to GitLab Ultimate through the GitLab for Education program immediately unlocked advanced capabilities, transforming their teaching, research, and contribution workflows virtually overnight. This story demonstrates why GitLab Ultimate is essential for institutions seeking to deliver advanced computer science and research curricula.\n\n## GitLab Ultimate unlocked: Managing scale and driving academic value\n\n**Artois University's** self-managed GitLab instance is a large-scale operation, supporting nearly **3,000 users** across approximately **19,000 projects**, primarily serving computer science students and researchers. While GitLab Community Edition was robust, the upgrade to GitLab Ultimate provided the sophisticated tooling necessary for managing this scale and facilitating advanced university-level work.\n\n***\"We can see the difference,\" says Daniel Le Berre, head of research at CRIL and the instance maintainer. \"It's a completely different product. Each week reveals new features that directly enhance our productivity and teaching.\"***\n\nThe institution joined the GitLab for Education program specifically because it covers both **instructional and non-commercial research use cases** and offers full access to Ultimate's features, removing significant cost barriers.\n\n### Key GitLab Ultimate benefits for students and researchers\n\n* **Advanced project management at scale:** Master's students now benefit from **GitLab Ultimate's project planning features**. This enables them to structure, track, and manage complex, long-term research projects using professional methodologies like portfolio management and advanced issue tracking that seamlessly roll up across their thousands of projects.\n\n* **Enhanced visibility:** Features like improved dashboards and code previews directly in Markdown files dramatically streamline tracking and documentation review, reducing administrative friction for both instructors and students managing large project loads.\n\n## Comprehensive curriculum: From concepts to continuous delivery\n\nGitLab Ultimate is deeply integrated into the computer science curriculum, moving students beyond simple `git` commands to practical **DevSecOps implementation**.\n\n* **Git fundamentals:** Students begin by visualizing concepts using open-source tools to master Git concepts.\n\n* **Full CI/CD implementation:** Students use GitLab CI for rigorous **Test-Driven Development (TDD)** in their software projects. They learn to build, test, and perform quality assurance using unit and integration testing pipelines—core competency made seamless by the integrated platform.\n\n* **DevSecOps for research and documentation:** The university teaches students that DevSecOps principles are vital for all collaborative work. Inspired by earlier work in Delft, students manage and produce critical research documentation (PDFs from Markdown files) using GitLab, incorporating quality checks like linters and spell checks directly in the CI pipeline. This ensures high-quality, reproducible research output.\n\n* **Future-proofing security skills:** The GitLab Ultimate platform immediately positions the institution to incorporate advanced DevSecOps features like SAST and DAST scanning as their research and development code projects grow, ensuring students are prepared for industry security standards.\n\n## Accelerating open source contributions with GitLab Duo\n\nAccess to the full GitLab platform, including our AI capabilities, has empowered students to make impactful contributions to the wider open source community faster than ever before.\n\nTwo Master's students recently completed direct contributions to the GitLab product, adding the **ORCID identifier** into user profiles. Working on GitLab.com, they leveraged **GitLab Duo's AI chat and code suggestions** to navigate the codebase efficiently.\n\n***\"This would not have been possible without GitLab Duo,\" Daniel Le Berre notes. \"The AI features helped students, who might have lacked deep codebase knowledge, deliver meaningful contributions in just two weeks.\"***\n\nThis demonstrates how providing students with cutting-edge tools **accelerates their learning and impact**, allowing them to translate classroom knowledge into real-world contributions immediately.\n\n## Empowering open research and institutional control\n\nThe stability of the self-managed instance at Artois University is key to its success. This model guarantees **institutional control and stability** — a critical factor for long-term research preservation.\n\nThe institution's expertise in this area was recently highlighted in a major 2024 study led by CRIL, titled: \"[Higher Education and Research Forges in France - Definition, uses, limitations encountered and needs analysis](https://hal.science/hal-04208924v4)\" ([Project on GitLab](https://gitlab.in2p3.fr/coso-college-codes-sources-et-logiciels/forges-esr-en)). The research found that the vast majority of public forges in French Higher Education and Research relied on **GitLab**. This finding underscores the consensus among academic leaders that self-hosted solutions are essential for **data control and longevity**, especially when compared to relying on external, commercial forges.\n\n## Unlock GitLab Ultimate for your institution today\n\nThe success story of **Artois University's CRIL** proves the transformative power of the GitLab for Education program. By providing **free access to GitLab Ultimate**, we enable large-scale institutions to:\n\n1.  **Deliver a modern, integrated DevSecOps curriculum.**\n\n2.  **Support advanced, collaborative research projects with Ultimate planning features.**\n\n3.  **Empower students to make AI-assisted open source contributions.**\n\n4.  **Maintain institutional control and data longevity.**\n\nIf your academic institution is ready to equip its students and researchers with the complete DevSecOps platform and its most advanced features, we invite you to join the program.\n\nThe program provides **free access to GitLab Ultimate** for qualifying instructional and non-commercial research use cases.\n\n**Apply now [online](https://about.gitlab.com/solutions/education/join/).**\n",{"slug":742,"featured":27,"template":13},"artois-university-elevates-curriculum-with-gitlab-ultimate-for-education",{"promotions":744},[745,759,770],{"id":746,"categories":747,"header":749,"text":750,"button":751,"image":756},"ai-modernization",[748],"ai-ml","Is AI achieving its promise at scale?","Quiz will take 5 minutes or less",{"text":752,"config":753},"Get your AI maturity score",{"href":754,"dataGaName":755,"dataGaLocation":242},"/assessments/ai-modernization-assessment/","modernization assessment",{"config":757},{"src":758},"https://res.cloudinary.com/about-gitlab-com/image/upload/v1772138786/qix0m7kwnd8x2fh1zq49.png",{"id":760,"categories":761,"header":762,"text":750,"button":763,"image":767},"devops-modernization",[715,556],"Are you just managing tools or shipping innovation?",{"text":764,"config":765},"Get your DevOps maturity score",{"href":766,"dataGaName":755,"dataGaLocation":242},"/assessments/devops-modernization-assessment/",{"config":768},{"src":769},"https://res.cloudinary.com/about-gitlab-com/image/upload/v1772138785/eg818fmakweyuznttgid.png",{"id":771,"categories":772,"header":774,"text":750,"button":775,"image":779},"security-modernization",[773],"security","Are you trading speed for security?",{"text":776,"config":777},"Get your security maturity score",{"href":778,"dataGaName":755,"dataGaLocation":242},"/assessments/security-modernization-assessment/",{"config":780},{"src":781},"https://res.cloudinary.com/about-gitlab-com/image/upload/v1772138786/p4pbqd9nnjejg5ds6mdk.png",{"header":783,"blurb":784,"button":785,"secondaryButton":790},"Start building faster today","See what your team can do with the intelligent orchestration platform for DevSecOps.\n",{"text":786,"config":787},"Get your free trial",{"href":788,"dataGaName":49,"dataGaLocation":789},"https://gitlab.com/-/trial_registrations/new?glm_content=default-saas-trial&glm_source=about.gitlab.com/","feature",{"text":494,"config":791},{"href":53,"dataGaName":54,"dataGaLocation":789},1773350843981]