Set `NIX_PATH` in `shellHook` of `shell.nix`.

See merge request !162

If `nix-shell` is run interactively on NixOS, in way that has loaded
`/etc/profile` (for example `docker exec <container> nix-shell`), then
`/etc/profile` will be sourced in the shell that nix-shell starts. That
overwrites the `NIX_PATH` set by `shell.nix`.

If we instead set `NIX_PATH` in the the `shellHook`, that always takes
precedence.

Make the per-grid inline module more explicit.

See merge request !160

Adopt the Nix packaging from our nixpkgs fork and use it

Closes #79

See merge request !158

Update issue link.

See merge request privatestorage/PrivateStorageio!155

Access morph module options via config.

See merge request !156

Upgrade system test software and port system tests from Perl to Python

Closes #41

See merge request privatestorage/PrivateStorageio!151

This reduces the confusion with the nixos/modules/deployment.nix module,
and should make it clearer that it can contain any configuration that
applies to all hosts on the grid.

Write Python with Nix (?).

This lets other modules override these settings.

Services Dashboard: Payments

Closes privatestorageops#290 and privatestorageops#349

See merge request privatestorage/PrivateStorageio!154

I hadn't understood: The PaymentServer turns 16 vouchers into
50 k ZKAPs.  So far, we don't have a metric for used up ZKAPs.

Also, since the dashboard is already a full browser page and
only handling payment, I rename the services dashboard to payment
dashboard.

Fixes privatestorageops#349.

Clean up nix-store on the machines with limited disk space

See merge request !149

Less swap on disk constrained AWS hosts

See merge request !150

Update nixpkgs-ps to include PaymentServer 0.1.1.1

See merge request !147

... fixing the Prometheus metric names a second time.

Prometheus niceties

See merge request !145

We have to explicitely add the port number so the relabel
config can strip it out again.  Else, `instance' seems to
get its value from somewhere else - somewhere our relabel
config does not look at.

Jean-Paul Calderone authored 3 years ago and Florian Sesser committed 3 years ago

This causes NixOS to generate the systemd timer unit for us and saves us
having to explain a lot of subtle systemd features.

It does pin execution to midnight on Monday but scaling to handle load spikes
is Let's Encrypt's problem, I guess.

Add a timer service to periodically trigger the cert renewal service

Closes privatestorageops#222

See merge request !143

This causes NixOS to generate the systemd timer unit for us and saves us
having to explain a lot of subtle systemd features.

It does pin execution to midnight on Monday but scaling to handle load spikes
is Let's Encrypt's problem, I guess.

Add ssh.nix to monitoring systems

See merge request !142