symphony

An open-source cloud platform heavily inspired from existing orchestrators (Docker Swarm, Kubernetes, OpenStack, etc).

Developed weekly live at The Alt-F4 Stream on Twitch.

IMPORTANT: everything below is a work-in-progress and subject to change at any time

Architecture

Below is an overiew of the current architecture design of Symphony.

Services in orange implemented and gray are unimplemented.

Concepts

Below describes the basic requirements of a Symphony environment.

• Consul: service discovery and replicated key-value storage of state

• Manager: all internal state changes and messages to cloud services

Below describes the optional cloud services and their functions.

• Block: cloud volume management

Development

Steps on how to setup a local development environment and perform various tasks.

Start environment

NOTE: this does require docker and docker-compose to work

docker-compose up --build -d

Add a cloud image

Download the cloud image of your choice (Ubuntu 20.04 as an example).

NOTE: you may execute image commands on any host via CLI

wget https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64-disk-kvm.img

Build the command-line tools to use locally.

go build ./cmd/cli

Run the image new command pointed to your local manager address.

./cli --manager-addr="localhost:15760" image new "Ubuntu Server 20.04 LTS (Focal Fossa) daily builds" "Ubuntu 20.04" "focal-server-cloudimg-amd64-disk-kvm.img"

The image should be registered in Consul at http://localhost:8500/ui/dc1/kv/image/.

Add a cloud service

Verify the new cloud service has the proper --manager-addr configuration and start it (block used as example).

NOTE: you don't need to do this if running the stack locally with docker-compose as it's started already

block --bind-interface="eth0" --config-dir="/config" --manager-addr="manager:15760" --verbose

Then run the service new command pointed at the socket path of the service.

NOTE: you may execute service commands only on the service host CLI.

docker-compose exec block ./cli --socket-path="/config/control.sock" service new

The service should be registered healty in Consul at http://localhost:8500.