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CodeRabbit
CodeRabbit: AI Code Reviews for Developers. Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.
cloud-custodian discussion
cloud-custodian reviews and mentions
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Cutting down AWS cost by $150k per year simply by shutting things off
> The best optimization is simply shutting things off
This is the way.
A similar idea has been bouncing around in my mind for a while now. An ideal, turnkey system would do the following:
- Execute via Lambda (serverless).
- Support automated startup and shutdown of various AWS resources on a schedule influenced by specially formatted tags.
- Enable resources to be brought back up out of schedule when demand dictates.
- Operate as a TCP/HTTP proxy that can delay clients so that a given service can be started when it is dormant or, even better, the service isn't serverless but you want it to be. This can't work for everything, but perhaps enough things such that the need to run always on services is reduced.
Cloud Custodian [1] can purportedly do some of this, but I've been reluctant to learn yet another YAML-based DSL to use it.
So this is my "make things designed to be always-on serverless instead" project and the work AWS has done to make Java apps function on Lambda keeps me thinking about the potential to take things that 1) have a relatively long startup time and 2) are designed to be long running service loops, and find a way to force them into the serverless execution model.
[1] https://cloudcustodian.io/
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When have you screwed up, bad?
Goal was to clear up anything old and set us up to rotate keys in use. Why did I do it in the end of December? It was a quarterly goal and I learned to push those across the line if I wanted a good review. Great incentive, that one. I used Cloud Custodian for this. It has a terrible bug where the code says you'll be acting on days since the key was used but actually is reading days since it was created.
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Open-Source tools for monitoring ML/AI usage- Recommendations?
What is wrong with https://github.com/cloud-custodian/cloud-custodian?
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Automate deletion of aws ebs snapshots older than year
You can start reading about it here.
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Optimizing cost on an app which is not used 24/7
Use a tool like this https://cloudcustodian.io/ to manage instance on/off hours or go fargate.
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Going for the CCP with a Compliance background. Any insight on what direction to pursue in AWS?
Certs aside, there are some great compliance tools out there that you might want to become familiar with. Here is one that comes to mind (is open-source): https://cloudcustodian.io/
- What are some of the community's best recommendations and use cases for Cost Optimization and FinOps
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EC2 start and stop via Lambda
I'd use a combination of Cloudcustodian for start/stop scheduling and Apprise for notifications.
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Tag Enforcement
Cloud custodian is a good utility if config rules doesn’t satisfy your needs. It’s also cross platform.
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26 AWS Security Best Practices to Adopt in Production
AWS Security with open source – Cloud Custodian is a Cloud Security Posture Management (CSPM) tool. CSPM tools evaluate your cloud configuration and identify common configuration mistakes. They also monitor cloud logs to detect threats and configuration changes.
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A note from our sponsor - CodeRabbit
coderabbit.ai | 22 Apr 2025
Stats
cloud-custodian/cloud-custodian is an open source project licensed under Apache License 2.0 which is an OSI approved license.
The primary programming language of cloud-custodian is Python.