10 things I love about Wrangler v2.0
Last November, we announced the beta release of a full rewrite of Wrangler, our CLI for building Cloudflare Workers. Since then, we’ve been working round the clock to make sure it's feature complete, bug-free, and easy to use. We are proud to announce that Wrangler goes public today for general usage, and can’t wait to see what people build with it!
Rewrites can be scary. Our goal for this version of Wrangler was backward compatibility with the original version, while significantly improving the developer experience. I'd like to take this opportunity to present 10 reasons why you should upgrade to the new Wrangler!
1. It's simpler to install:
Previously, folks would have to install @cloudflare/wrangler globally on a system. This made it hard to use different versions of Wrangler across projects. Further, it was hard to install on some CI systems because of lack of access to a user's root folder. Sometimes, folks would forget to add the @cloudflare scope when installing, confusing them when a completely unrelated package was installed and didn't work as expected.
Let's fix that. We've simplified this by now publishing to the wrangler package, so you can run npm Continue reading
Open source Managed Components for Cloudflare Zaraz
In early 2020, we sat down and tried thinking if there’s a way to load third-party tools on the Internet without slowing down websites, without making them less secure, and without sacrificing users’ privacy. In the evening, after scanning through thousands of websites, our answer was “well, sort of”. It seemed possible: many types of third-party tools are merely collecting information in the browser and then sending it to a remote server. We could theoretically figure out what it is that they’re collecting, and then instead just collect it once efficiently, and send it server-side to their servers, mimicking their data schema. If we do this, we can get rid of loading their JavaScript code inside websites completely. This means no more risk of malicious scripts, no more performance losses, and fewer privacy concerns.
But the answer wasn’t a definite “YES!” because we realized this is going to be very complicated. We looked into the network requests of major third-party scripts, and often it seemed cryptic. We set ourselves up for a lot of work, looking at the network requests made by tools and trying to figure out what they are doing – What is this parameter? When is Continue reading
The next chapter for Cloudflare Workers: open source
450,000 developers have used Cloudflare Workers since we launched.
When we announced Cloudflare Workers nearly five years ago, we had no idea if we’d ever be in this position. But a lot of care, hard work — not to mention dogfooding — later, we’ve been absolutely blown away by the use cases and applications built on our developer platform, not to mention the community that’s grown around the product.
My job isn’t just speaking to developers who are already using Cloudflare Workers, however. I spend a lot of time talking to developers who aren’t yet using Workers, too. Despite how cool the tech is — the performance, the ability to just code without worrying about anything else like containers, and the total cost advantages — there are two things that cause developers to hesitate in engaging with us on Workers.
The first: they worry about being locked in. No matter how bullish on the technology you are, if you’re betting the future of a company on a development platform, you don’t want the possibility of being held to ransom. And second: as a developer, you want a local development environment to quickly iterate and test your changes. These concerns might Continue reading
Living with Small Forwarding Tables
A friend of mine working for a mid-sized networking vendor sent me an intriguing question:
We have a product using an old ASIC that has 12K forwarding entries, and would like to extend its lifetime. I know you were mentioning some useful tricks, would you happen to remember what they were?
This challenge has no perfect solution, but there are at least three tricks I’ve encountered so far (as always, comments are most welcome):
Living with Small Forwarding Tables
A friend of mine working for a mid-sized networking vendor sent me an intriguing question:
We have a product using an old ASIC that has 12K forwarding entries, and would like to extend its lifetime. I know you were mentioning some useful tricks, would you happen to remember what they were?
This challenge has no perfect solution, but there are at least three tricks I’ve encountered so far (as always, comments are most welcome):
On the Edge with 5G? Automation’s Never Been More Necessary (or Attainable)
Automation, virtualization, and networking slicing will allow enterprises to deploy 5G services in a cost-effective manner, changing legacy workflows and processes.Welcome to Platform Week
Principled. It’s one of Cloudflare’s three core values (alongside curiosity and transparency).
It’s a word that we came back to quite a bit in thinking through a question that has been foundational in driving us for this year’s Platform Week: what makes a truly great developer platform?
Of course, when it comes to evaluating developer platforms, the temptation is to focus on the “feeds and speeds” part of the equation. Who is the fastest? Who has the coolest tech? Who lets you do stuff that previously you could not?
Undoubtedly, these are all important questions. But we realized that the fun and shiny things which are often answers to these questions can easily become distractions from the true promise of developing on the Internet — and even traps that the less principled developer platforms can use to lure you into their arms.
The promise being, of course: that you can pull together solutions from a variety of different providers, to build something greater than what you’d be able to do with any one of them alone. That you can build something based on whatever is best when you sit down to create your application. And of course, if something better Continue reading
Announcing our Spring Developer Speaker Series
We love developers.
Late last year, we hosted Full Stack Week, with a focus on new products, features, and partnerships to continue growing Cloudflare’s developer platform. As part of Full Stack Week, we also hosted the Developer Speaker Series, bringing 12 speakers in the web dev community to our 24/7 online TV channel, Cloudflare TV. The talks covered topics across the web development ecosystem, which you can rewatch at any time.
We loved organizing the Developer Speaker Series last year. But as developers know far too well, our ecosystem changes rapidly: what may have been cutting edge back in November 2021 can be old news just a few months later in 2022. That’s what makes conferences and live speaking events so valuable: they serve as an up-to-date reference of best practices and future-facing developments in the industry. With that in mind, we're excited to announce a new edition of our Developer Speaker Series for 2022!
Check out the eleven expert web dev speakers, developers, and educators that we’ve invited to speak live on Cloudflare TV! Here are the talks you’ll be able to watch, starting tomorrow morning (May 9 at 09:00 PT):
The Bootcampers Companion – Caitlyn Greffly
In Continue reading
AWS: The Case of the iBGP Peer that Worked – Part 2: The Answer
The Answer: “#8 – Ping 192.168.14.2 from the AWS CSR” Summary: Why? What does BGP coming up have to do with the AWS CSR pinging the other side of GRE tunnel? Well if you know the answer… don’t read anymore.... Read More ›
The post AWS: The Case of the iBGP Peer that Worked – Part 2: The Answer appeared first on Networking with FISH.
Worth Reading: The State of fq_codel (and Bufferbloat)
Erik Auerswald sent me a pointer to a blog post by Dave Taht: The state of fq_codel and sch_cake worldwide. It’s so nice to see what a huge impact Dave made since he started the Bufferbloat project.
Hint: if you have no idea what Bufferbloat or fq_codel are, you REALLY SHOULD explore Dave’s web site.
Worth Reading: The State of fq_codel (and Bufferbloat)
Erik Auerswald sent me a pointer to a blog post by Dave Taht: The state of fq_codel and sch_cake worldwide. It’s so nice to see what a huge impact Dave made since he started the Bufferbloat project.
Hint: if you have no idea what Bufferbloat or fq_codel are, you REALLY SHOULD explore Dave’s web site.
Cisco Catalyst Stack Upgrade
Well… It will reboot your whole switch stack at once, In case you were wondering. But it has a neat feature of automatic rollback to the previous IOS XE version if something goes south with the newly upgraded switches. The same goes for non-stacked Cisco Catalyst C9200 and C9300 switches, but the question was, and the answer is hard to find if the stack would reload members sequentially or it would just reload all members at once. The answer is of course the least good option which makes the upgrade impossible without network outage even if other devices are connected
The post Cisco Catalyst Stack Upgrade appeared first on How Does Internet Work.
Worth Watching: Source Routing on the Edge (iNOG::14v)
Most large content providers use some sort of egress traffic engineering on edge web proxy/caching servers to optimize the end-user experience (avoid congested transit autonomous systems) and link utilization on egress links.
I was planning to write a blog post about the tricks they use for ages, and never found time to do it… but if you don’t mind watching a video, the Source Routing on the Edge presentation Oliver Herms had at iNOG::14v does a pretty good job explaining the concepts and a particular implementation.
Worth Watching: Source Routing on the Edge (iNOG::14v)
Most large content providers use some sort of egress traffic engineering on edge web proxy/caching servers to optimize the end-user experience (avoid congested transit autonomous systems) and link utilization on egress links.
I was planning to write a blog post about the tricks they use for ages, and never found time to do it… but if you don’t mind watching a video, the Source Routing on the Edge presentation Oliver Herms had at iNOG::14v does a pretty good job explaining the concepts and a particular implementation.