Profian Inc. Staging Environment

Architecture

There are two environments defined in this project:

testing, where latest main of each project is deployed automatically by the CI
staging, where latest release of each project is deployed manually (potentially automated in the future)

Each service is deployed as a hardened systemd service.

Steward

The steward service is configured with a CA certificate and key and running on unprivileged port. The service itself only handles HTTP traffic, which is transparently upgraded to TLS by Nginx reverse proxy by using Let's Encrypt certificates, which routes requests to ports 443 and 80 (redirected) to the underlying service.

Drawbridge

The drawbridge service is configured with Steward CA certificate, as well as server certificate and key and is running on unprivileged port. The service itself handles HTTPS traffic, but is behind Nginx reverse proxy, which routes requests to ports 443 and 80 (redirected) to the underlying service.

Access

deploy user is used for deployment.

Deployment

Dependencies

The only dependency for deployment is nix, which is platform-agnostic and well-supported on Linux and MacOS.

If you do not wish to install it, you can also run it via Docker/Podman. For example:

$ docker run -w $(pwd) -v $(pwd):$(pwd) -v $(mktemp -d):/nixpkgs nixos/nix nix --extra-experimental-features 'nix-command flakes' develop -c deploy

Note, if you were to do this, you probably want to avoid using a temporary directory for the nixpkgs cache, since then nix would have to download all dependencies of the project on each invocation. Instead, it is highly recommended to store the Nix store in a persistent location (e.g. by defining a volume) to avoid having to reconstruct the cache on each invocation.

Bootstrapping

From within nix develop shell:

$ bootstrap

This will generate keys and certificates for all hosts.

Deploying changes

serokell/deploy-rs is used for deployment. (Note, the tool does not need to be installed as it is already present in nix development shell)

To deploy all instances, run deploy from the root of this repository.

From within nix develop shell:

$ deploy

Or to deploy a specific instance:

$ deploy '.#store-testing'

Project Structure

hosts directory contains host-specific assets and tooling, e.g. TLS certificates and a script to generate them
flake.nix contains the definitions of all nodes in the network

License

profianinc/infrastructure

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