go-patterns
kubebuilder
go-patterns | kubebuilder | |
---|---|---|
8 | 45 | |
24,114 | 7,407 | |
- | 1.0% | |
0.0 | 9.3 | |
7 months ago | 6 days ago | |
Go | Go | |
Apache License 2.0 | Apache License 2.0 |
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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.
go-patterns
- Options Pattern em Go
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Go pro! With these free Golang resources
3). GO Patterns
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Software architecture in golang,
Re Go, there are a lot of lot of good patterns available available, but a lot of them aren’t OOP specific. In fact, both Go and Rust have been influenced by multiple paradigms, including OOP. Like the FAQ says,
- Boilerplate for experienced devs
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Should I learn Golang or use Ansible to delveop the operators?
What's great is there are really great patterns to follow out there on github (both code patterns https://github.com/tmrts/go-patterns and examples https://github.com/avelino/awesome-go https://github.com/go-kit/kit and for the app itself, https://github.com/golang-standards/project-layout )... and for me a really naggy mentor who insists everything be "idiomatic go"
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Why is this executing in this order?
So I am trying to write a simple generator based on this pattern and the results are a little counter-intuitive. My goal is to create a generator like the above that takes a net.IPNet object and ranges over all net.IP`'s contained in that network. When printing results, I am seeing the same values show up in subsequent executions of the loop and am not sure why. Code follows:
- Go is not an easy language
- Need suggestions for good tutorial on concurrency and design patterns in golang.
kubebuilder
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SpinKube: Orchestrating light, fast and efficient WebAssembly (Wasm) workloads in Kubernetes (k8s)
The Spin operator uses the Kubebuilder framework and contains a Spin App Custom Resource Definition (CRD) and controller. It watches Spin App Custom Resources and realizes the desired state in the K8s cluster. Aside from the immediate benefits gained by running Wasm workloads in k8s, additional optimizations such as Horizontal Pod Scaling (HPA) and k8s Event-driven Autoscaling (KEDA) can be achieved in a pinch.
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Building a Kubernetes Operator with the Operator Framework
kubebuilder: brew install kubebuilder
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Annotations in Kubernetes Operator Design
The operator that I've been working on is designed to manage the full lifecycle of a QuestDB database instance, including version and hardware upgrades, config changes, backups, and (eventually) recovery from node failure. I used the Operator SDK and kubebuilder frameworks to provide scaffolding and API support.
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Kubebuilder Tips and Tricks
Recently, I've been spending a lot of time writing a Kubernetes operator using the go operator-sdk, which is built on top of the Kubebuilder framework. This is a list of a few tips and tricks that I've compiled over the past few months working with these frameworks.
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We moved our Cloud operations to a Kubernetes Operator
Since we built our operator using the Kubebuilder framework, most standard monitoring tasks were handled for us out-of-the-box. Our operator automatically exposes a rich set of Prometheus metrics that measure reconciliation performance, the number of k8s API calls, workqueue statistics, and memory-related metrics. We we were able to ingest these metrics into pre-built dashboards by leveraging the grafana/v1-alpha plugin, which scaffolds two Grafana dashboards to monitor Operator resource usage and performance. All we had to do was add these to our existing Grafana manifests and we were good to go!
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Has anyone ever tried to learn how k8s works?
I wrote a CSI driver and some operators. I admire K8s, because you can find solution to almost any problem in the source code - API versioning, load balancing, request throttling, optimistic concurrency, security, and much much more. I recommend https://book.kubebuilder.io/ It is similar to Operator SDK, but without Openshift-specific stuff. It gradually introduces you to many k8s concepts, and follows design patterns that k8s uses internally.
- What Is A Kubernetes Operator?
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If you write a Kubernetes Operator: Events vs Conditions?
Do you mean this: https://book.kubebuilder.io/ ?
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Kubernetes Operators
https://book.kubebuilder.io/ all you need to know
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Writing a Kubernetes Operator
A better way to write an operator these days is to use kubebuilder [1].
My complaint is that I have seen orgs write operators for random stuff, often reinventing the wheel. Lot of operators in orgs are result of resume driven development. Having said that it often comes handy for complex orchestration.
[1]https://github.com/kubernetes-sigs/kubebuilder
What are some alternatives?
handlers - A collection of useful middleware for Go HTTP services & web applications 🛃
helm-operator - Successor: https://github.com/fluxcd/helm-controller — The Flux Helm Operator, once upon a time a solution for declarative Helming.
Nim - Nim is a statically typed compiled systems programming language. It combines successful concepts from mature languages like Python, Ada and Modula. Its design focuses on efficiency, expressiveness, and elegance (in that order of priority).
client-go - Go client for Kubernetes.
go-kit - A standard library for microservices.
operator-sdk - SDK for building Kubernetes applications. Provides high level APIs, useful abstractions, and project scaffolding.
python - Official Python client library for kubernetes
crossplane - The Cloud Native Control Plane
crystal - The Crystal Programming Language
kubegres - Kubegres is a Kubernetes operator allowing to deploy one or many clusters of PostgreSql instances and manage databases replication, failover and backup.
Grumpy - Grumpy is a Python to Go source code transcompiler and runtime.