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Is WebAssembly Ready to replace Docker?
- WebAssembly (Wasm) evolved from asm.js, offering a low-level binary instruction set with portability and security features.
- WebAssembly is versatile, not limited to browsers as it is useful in server, cloud environments, and even IoT devices.
- WebAssembly acts like Docker with less overhead, providing sandboxed, portable code execution and faster startup times.
- With WebAssembly, multiple languages can be compiled to run together in a unified sandbox, offering flexibility.
- WebAssembly has gained traction for edge computing, serverless functions, IoT devices, and extensibility in applications.
- Cloudflare, Fastly, and F5 are examples of companies leveraging WebAssembly for edge computing tasks and customization.
- WebAssembly enables secure and fast execution of custom logic in API gateways, proxies, and IoT devices.
- WebAssembly serves as a universal plugin system, allowing plugins to be written in multiple languages for seamless integration.
- While WebAssembly shows promise, it is not yet ready to entirely replace Docker due to some limitations in accessing underlying OS features.
- Experts suggest that WebAssembly and containers are complementary tools, with WebAssembly enhancing portability and speed, while containers excel in running full applications with OS dependencies.
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