Deployment and lifecycle management for Nix
feat(server): client bootstrap script now understands caches
+57
-15
+5
-1
config/runtime.exs
+5
-1
config/runtime.exs
···
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listen_address = json_config |> Keyword.get(:listen_address, "127.0.0.1")
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listen_port = json_config |> Keyword.get(:listen_port, 4000)
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+
if not Keyword.has_key?(json_config, :nix_caches) do
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+
json_config = json_config |> Keyword.put(:nix_caches, [])
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+
end
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+
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secret_key_base =
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with secret_key_base_file <- json_config |> Keyword.get(:secret_key_base_file),
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{:ok, secret_key_base} <- read_credential(secret_key_base_file) do
···
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end
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defp atomize([head | rest]) do
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-
[atomize(head), atomize(rest)] |> List.flatten()
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+
[atomize(head)] ++ atomize(rest)
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end
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defp atomize(map = %{}) do
+12
-5
lib/sower_web/controllers/app_controller.ex
+12
-5
lib/sower_web/controllers/app_controller.ex
···
1
1
defmodule SowerWeb.AppController do
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use SowerWeb, :controller
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3
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+
action_fallback SowerWeb.AppFallbackController
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+
4
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def client_script(conn, _params) do
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case Application.fetch_env(:sower, :clients) do
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{:ok, clients} ->
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render(conn |> put_root_layout(false), :client_script,
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layout: false,
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clients: clients
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)
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conn
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|> assign(:clients, clients)
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|> assign(:nix_caches, Application.fetch_env!(:sower, :nix_caches))
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|> put_root_layout(false)
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|> render(:client_script, layout: false)
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:error ->
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html(conn |> Plug.Conn.put_status(404) |> Plug.Conn.halt(), "not found")
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conn
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|> Plug.Conn.put_status(404)
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|> put_root_layout(false)
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|> Plug.Conn.halt()
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|> html("echo 'Error: client paths not configured on sower server'")
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end
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end
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end
+34
lib/sower_web/controllers/app_html.ex
+34
lib/sower_web/controllers/app_html.ex
···
2
2
use SowerWeb, :html
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3
4
4
embed_templates("app_html/*")
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+
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attr :arch, :string, required: true
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+
attr :path, :string, required: true
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+
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+
def case_arch(assigns) do
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~H"""
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<%= @arch %>)
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nix-store --realize <%= @path %> $cache_args #
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exec <%= @path %>/bin/sower "$@"
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;;
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"""
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+
end
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+
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attr :nix_caches, :list, required: true
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+
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+
def cache_args(assigns) do
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substituters =
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if assigns.nix_caches |> length > 0 do
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"--extra-substituters " <>
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(assigns.nix_caches |> Enum.map_join(",", &(&1 |> Keyword.get(:url))))
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else
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""
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+
end
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+
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keys =
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if assigns.nix_caches |> length > 0 do
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"--extra-trusted-public-keys " <>
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(assigns.nix_caches |> Enum.map_join(",", &(&1 |> Keyword.get(:public_key))))
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else
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""
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end
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+
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~H"<%= substituters %> <%= keys %>"
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+
end
5
39
end
+6
-9
lib/sower_web/controllers/app_html/client_script.sh.heex
+6
-9
lib/sower_web/controllers/app_html/client_script.sh.heex
···
10
10
fi
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system="${arch}-linux"
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+
cache_args="<.cache_args nix_caches={@nix_caches} />"
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echo ":: Found system ${system}"
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case "$system" in
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<%= for {arch, props} <- @clients do %>
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-
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<%= arch %>)
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nix-store --realize <%= props |> Keyword.get(:path) %>
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exec <%= props |> Keyword.get(:path) %>/bin/sower "$@"
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;;
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<.case_arch arch={arch} path={props |> Keyword.get(:path)} />
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<% end %>
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-
*)
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echo "!! Unsupported system!"
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exit 1
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-
;;
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+
*)
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echo "!! Unsupported system!"
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exit 1
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+
;;
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24
esac