kubectl
TTY
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kubectl | TTY | |
---|---|---|
13 | 7 | |
2,680 | 2,478 | |
1.7% | - | |
9.2 | 0.0 | |
7 days ago | over 1 year ago | |
Go | Ruby | |
Apache License 2.0 | MIT License |
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.
kubectl
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What are these orphaned PVC objects?
Check https://github.com/kubernetes/kubectl/issues/151
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Setting kubectl context via env var
I have read this issue, and up to now it seems not possible to change the kubectl context via an env var: https://github.com/kubernetes/kubectl/issues/1154
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Deciding between Rust or Go for desktop applications
However, I would encourage people to take a look at what the code looks like before assuming the Go developer experience on this was positive. Bear in mind that's just the top level kubectl command and some helper functions, the subcommand definitions take up a several more files split into a few more packages. Then you're still not even done, because code that uses the parsed flags still has to redundantly check things that couldn't be enforced at the type level, something Go folks like to pretend is a good thing for some reason.
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Recommendations on file/dir/module structure, common dependencies, and/or anti-patterns for writing CLI tool in Rust
kubectl is for sure battle tested, but it involves very Kubernetes specific implementations and is going to be too complicated for the first pointer
- Recommendations on building a simple DSL REPL?
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Why Go and Not Rust?
> context.Background() is typically only used when one doesn’t care about the result. If you did care about the result, you should be passing the parent context to preserve the circuit breaker timeout in case the operation takes too long.
Not necessarily. You would use context.Background in a test situation. It's also commonly used for short-lived applications like a CLI invocation. You can see kubectl uses context.Background quite a lot: https://github.com/kubernetes/kubectl/search?q=context.backg...
> I think the level of pain you experience from mutable references in Rust depends on if you’re coming from an OOP or FP background. I have a FP background and so the patterns I use to build code already greatly restrict mutation. You can usually change code that updates data immutably (creating a new copy of it) with mutable code in rust because the control flow of your program already involves passing that new version back to the caller which also satisfies the borrow checker in most situations.
There has to be a better solution to needlessly copying data.
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kubectl - Create PV/PVC
This is particularly useful for academic purposes, and makes somehow convinient to get the yaml template of k8s objects. I was looking for this as well due to an upcoming ckad test i have. Unfourtunately due to not being considered best practice the request for it was dismissed. https://github.com/kubernetes/kubectl/issues/1073
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Must `kubectl apply` twice to allow CRD usage?
I see, apologies, I did misunderstand. This is actually a known race condition between kubectl (or even helm, or any Kube API client) issuing the requests to deploy CRs that depend on CRDs while those CRDs are still being installed on the API server. Simply put, kubectl makes these requests too quickly. There is no solution to this currently aside from deploying CRDs separately from the resources they expose. See this kubectl issue: https://github.com/kubernetes/kubectl/issues/1117, and there are some links in the comments to other issues echoing the same problem in helm and elsewhere.
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What's the number one annoyance that drives you crazy about Kubernetes?
Go add --no-really-all if you really want it: https://github.com/kubernetes/kubectl
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How to change a POD label via client-go?
You could take a look at how kubectl actually does it: https://github.com/kubernetes/kubectl/blob/master/pkg/cmd/label/label.go
TTY
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Ncurses in Ruby style?
Not curses but something Ruby style: https://ttytoolkit.org/. No C dependencies, I think...
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I'd like to read manually input data and prompt for the next bit of data at the terminal without getting newlines.
TTY-ruby is an extensive CLI toolkit that might help you do what you want. Have a look. I’ve used some of them successfully in the past.
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What library can I use to create a TUI
TUI? Terminal UI? If so, check out https://ttytoolkit.org/ and https://github.com/Shopify/cli-ui
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Looking for a tutorial or a resource to write good looking CLI applications
Saw just now. Cobra is huge and offers a lot. Btw, I've used this https://github.com/piotrmurach/tty for a Ruby project a while ago and was looking for something similar. I guess Cobra it is. Thanks again!
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How to get better at Ruby scripting?
If you're interested in taking things further, maybe have a look at Build Awesome Command-Line Applications in Ruby 2. If you're not ready to buy a book, check out the Ruby TTY Toolkit page.
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Building Rich terminal dashboards
The tty suite of tools are a good shout, although I've never used them in anger. https://ttytoolkit.org
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26 most popular Ruby/Rails repositories on GitHub in July-August 2020
TTY::Box provides box drawing component for TTY toolkit. 142 stars by now
What are some alternatives?
helm - The Kubernetes Package Manager
Thor - Thor is a toolkit for building powerful command-line interfaces.
robusta - Kubernetes observability and automation, with an awesome Prometheus integration
Rake - A make-like build utility for Ruby.
kubernetes - Production-Grade Container Scheduling and Management
Commander - The complete solution for Ruby command-line executables
client-go - Go client for Kubernetes.
Cocaine
cli - GitHub’s official command line tool
GLI - Make awesome command-line applications the easy way
Mattermost - Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..
Slop - Simple Lightweight Option Parsing - ✨ new contributors welcome ✨