rewrite
aws-ip-ranges
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rewrite | aws-ip-ranges | |
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24 | 14 | |
1,830 | 258 | |
7.0% | - | |
9.9 | 9.9 | |
3 days ago | about 19 hours ago | |
Java | Python | |
Apache License 2.0 | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
rewrite
- FLaNK Weekly 31 December 2023
- OpenRewrite – Automated mass refactoring of source code
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AST-grep(sg) is a CLI tool for code structural search, lint, and rewriting
If you're into this sort of thing, there's OpenRewrite[1] for the Java ecosystem.
[1] https://docs.openrewrite.org/
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What's New in Spring Framework 6.1
> Spring has gotten so bloated.
I'd call Spring feature-rich than bloated. You can always shed weight that you don't want to carry.
> Plus there's multiple ways of doing the same thing. e.g. JPA, spring-data.
That's because there are different ways to solve a problem. Someone may want an ORM-based approach to connect to the database; they can choose spring-data-jpa. Someone may want to use JDBC with a light abstraction on top of it; they can choose spring-data-jdbc. It's all about choices and right tradeoffs and Spring offers plenty of them.
> they don't provide easy upgrade paths between majors versions
That's not my experience. I've been happily upgrading 2.x.x versions and plan to upgrade to 3.2.x when it is ready. But depending on the codebase, I admit it can be painful. Projects like OpenRewrite[1] might help here.
> and they stop updating vulnerabilities on older major versions.
This is not news. They want you to pay for extended support if you need it.
> No docs on migration.
They do maintain migration docs on GitHub wiki which are a lot more detailed than their blog posts on migration. Here's the latest one to upgrade from Spring Boot 2 to 3: https://github.com/spring-projects/spring-boot/wiki/Spring-B...
[1]: https://github.com/openrewrite/rewrite
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We already have Spring 2.1.3, Is SpringBoot 3 worth learning.
The issue you may run into when migrating from Spring Boot 2.x to 3.x is the JEE namespace renames. Migrating code from 8 to 17 in my experience hasn't been all that difficult. In most projects, there are no changes to make. However, with the namespace change, you'll probably have to do some planning and testing. If you are migrating a lot of projects, check out Open Rewrite, it may help automate a lot of these upgrades (for both 8 to 17 and Spring Boot versions).
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Why wouldn't somebody change their version?
Couldn't OpenRewrite (https://docs.openrewrite.org) do a big part of this manual work?
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Any ideas on how to automate upgrade of legacy Spring Framework/Spring Boot repositories?
Openrewrite would probably be a big help, see https://docs.openrewrite.org
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what is your favorite programming trick/tool that not many People know about?
In a similar vein there is OpenRewrite which is an open-source project that works in a similar way. It also has a lot of great refactorings already built in, like doing all the grunt work for migrating to JUnit 5, or replacing string concatenation in SLF4J log calls with parameterized formatting.
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Refactoring giant codebase
seems a case for https://docs.openrewrite.org/
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What are your thoughts on Spring in 2023?
https://github.com/openrewrite/rewrite might help
aws-ip-ranges
- AWS: IPv4 addresses cost too much, so you’re going to pay
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AWS outages analysis: Debunking 3 myths and revealing the least reliable region
Specifically, I used a little script I have that made this animation, which is part of my AWS IP Range's repo.
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How does aws manage public IPv4 addresses allocation
And yeah, this means lots of EC2 instances have their own IP address. This is why AWS hash over 74 million public IPv4 addresses, and why the mass majority of them, something like 75%, are used for EC2.
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AWS IP Ranges increase of 4,718,592 IPs
Just a heads up, AWS just added 4,718,592 new IPs in their second largest expansion to date.
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Amazon, Verizon found using IPv4 240/4 addresses
> Moreover, we did not find any 240/4 prefix in the official prefix list shared by Amazon
Yeah, so about that:
https://github.com/seligman/aws-ip-ranges/commit/2e0d9d87d4f...
They did briefly list 252.0.0.0/10 in their published list of IP ranges. The people I spoke with about this at the time either claimed it was a mistake, or the state of the world that I should get used to (it broke some surprisingly fragile scripts on my side for silly reasons).
Given they removed it from their list of IPs 27 hours later, I'm guessing I wasn't the only person freaking out. But yeah, they use it internally, and it leaks from time to time in surprising ways.
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AWS running out of IPs?
They have north of 66 million IP addresses, so if they're running out, that's an impressive feat.
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AWS, Azure, GCP region / instance type data
History of AWS's IP Ranges, and a more recent history/comparison of the size of IP Pools of different Cloud Providers
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[OC] Amazon's AWS size based off IP allocation
This is sourced from a document that AWS publishes, called ip-ranges.json, as archived in my GitHub repo, with a little help from the Internet Archive's Wayback Machine for the first year or so of data before I was archiving changes via a script.
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AWS just bought 5.5 Million IP addresses
According to https://github.com/seligman/aws-ip-ranges, they have acquired 5,505,024 IPv4 address on Aug 12. This apparently their largest purchase to date, and puts them in control of 1.75% of all IPv4 address. In the world.
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Hacker News top posts: Aug 14, 2021
AWS adds an extra 5.5M IPv4 addresses\ (146 comments)
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