feat: sdm crate for managing containers

therustmonk commented 1 year ago

Description

Adds crates (sdm and sdm-launchpad) that automatically manages containers. The implementation uses a bus instead of direct api calls and provides a state with deltas that should be rendered on UI. Unlike the original solution, this one uses independent tasks to watch for containers and launch necessary services in proper time: like GRPC clients.

This approach helps to solve many issues like: base node failed to start as tor wasn't available (bootstrapping lasted longer), and could solve many issues automatically with detailed reporting about problems. The main reason why BUS approach is better than API, because API calls are good for independent tasks that could be successfully performer at any given time, like a system call to create a new file. The launchpad app is not a plain service and has to fulfill many conditions. For example, we can't have a simple get_balance API method, because it depends on:

tor ->
tor bootstrapping ->
base_node container ->
syncing of the blockchain ->
wallet container ->
GRPC availibility.

The conditions above are too complex to have a plain API method and checking them on UI side force us to forward all the raw data from docker to the UI that is not the best part for doing that tricky checks.