Feature/lab12

[KsAKarpeeva73]

Goal

Finish Lab 12 by comparing traditional Docker containers and WASM containers using the same Go source code.

Changes

• Added labs/submission12.md with WASM vs traditional container benchmarks
• Reviewed the provided Moscow Time Go application in labs/lab12
• Tested CLI mode with MODE=once
• Built and tested the traditional Docker container
• Built a WASM binary with TinyGo from the same main.go
• Packaged the WASM binary as an OCI image and ran it with ctr
• Documented binary sizes, image sizes, startup times, and memory usage
• Explained the WASI Preview1 server mode limitation
• Added screenshots showing CLI output, traditional server mode, metrics, and WASM results

Testing

• CLI mode works with MODE=once
• Traditional Docker image builds successfully
• Traditional Docker container runs in server mode
• Traditional Docker startup benchmark completed
• Traditional Docker memory usage was measured
• WASM binary builds successfully with TinyGo
• WASM OCI image was imported into containerd
• WASM container runs with ctr and io.containerd.wasmtime.v1
• WASM startup benchmark completed
• WASI Preview1 networking limitation was tested and documented
• Documentation is complete and updated

Lab Checklist

• Task 1 — Create the Moscow Time Application
• Task 2 — Build Traditional Docker Container
• Task 3 — Build WASM Container
• Task 4 — Performance Comparison & Analysis
• Bonus — Deploy to Fermyon Spin Cloud

Key Achievement: Used the same main.go for both traditional Docker and WASM builds. Startup benchmarks were performed with MODE=once for both targets.