A fast and efficient cloud native application runtime
Layotto (L8): To be the next layer of OSI layer 7
Layotto(/leɪˈɒtəʊ/) is an application runtime developed using Golang, which provides various distributed capabilities for applications, such as state management, configuration management, and event pub/sub capabilities to simplify application development.
Layotto is built on the open source data plane MOSN .In addition to providing distributed building blocks, Layotto can also serve as the data plane of Service Mesh and has the ability to control traffic.
MotivationLayotto aims to combine Multi-Runtime with Service Mesh into one sidecar. No matter which product you are using as the Service Mesh data plane (e.g. MOSN,Envoy or any other product), you can always attach Layotto to it and add Multi-Runtime capabilities without adding new sidecars.
For example, by adding Runtime capabilities to MOSN, a Layotto process can both serve as the data plane of istio and provide various Runtime APIs (such as Configuration API, Pub/Sub API, etc.)
In addition, we were surprised to find that a sidecar can do much more than that. We are trying to make Layotto even the runtime container of FaaS (Function as a service) with the magic power of WebAssembly .
FeaturesAs shown in the architecture diagram below, Layotto uses the open source MOSN as the base to provide network layer management capabilities while providing distributed capabilities. The business logic can directly interact with Layotto through a lightweight SDK without paying attention to the specific back-end infrastructure.
Layotto provides SDKs in various languages. The sdk interacts with Layotto through grpc. Application developers only need to specify their own infrastructure type through the configuration file configure file provided by Layotto. No coding changes are required, which greatly improves the portability of the program.
Quickstarts Get started with LayottoYou can try the quickstart demos below to get started with Layotto. In addition, you can experience the online laboratory
API API status quick start desc State ✅ demo Write/Query the data of the Key/Value model Pub/Sub ✅ demo Publish/Subscribe message through various Message Queue Service Invoke ✅ demo Call Service through MOSN (another istio data plane) Config ✅ demo Write/Query/Subscribe the config through various Config Center Lock ✅ demo Distributed lock API Sequencer ✅ demo Generate distributed unique and incremental ID File ✅ TODO File API implementation Binding ✅ TODO Transparent data transmission API Service Mesh feature status quick start desc istio ✅ demo As the data plane of istio Extendability feature status quick start desc API plugin ✅ demo You can add your own API ! Actuator feature status quick start desc Health Check ✅ demo Query health state of app and components in Layotto Metadata Query ✅ demo Query metadata in Layotto/app Traffic Control feature status quick start desc TCP Copy ✅ demo Dump the tcp traffic received by Layotto into local file system Flow Control ✅ demo limit access to the APIs provided by Layotto Write your bussiness logic using WASM feature status quick start desc Go (TinyGo) ✅ demo Compile Code written by TinyGo to *.wasm and run in Layotto Rust ✅ demo Compile Code written by Rust to *.wasm and run in Layotto AssemblyScript ✅ demo Compile Code written by AssemblyScript to *.wasm and run in Layotto As a FaaS(Serverless) runtime (Layotto + WebAssembly + k8s) feature status quick start desc Go (TinyGo) ✅ demo Compile Code written by TinyGo to *.wasm and run in Layotto And Scheduled by k8s. Rust ✅ demo Compile Code written by Rust to *.wasm and run in Layotto And Scheduled by k8s. AssemblyScript ✅ demo Compile Code written by AssemblyScript to *.wasm and run in Layotto And Scheduled by k8s. Presentations
Layotto enriches the CNCF CLOUD NATIVE Landscape.
Community Contact Us
Platform Link
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How to contribute
Where to start? Check "Community tasks" list!
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Contributors
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Design Documents
Pubsub API and Compability with Dapr Component
FAQ Difference with dapr?
dapr is an excellent Runtime product, but it lacks the ability of Service Mesh, which is necessary for the Runtime product used in production environment, so we hope to combine Runtime with Service Mesh into one sidecar to meet more complex production requirements.
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