Commit 40bfbe32 authored by Bjørn Forsman's avatar Bjørn Forsman
Browse files

nixos/scrutiny: wait until ready 

Add postStart code that waits until Scrutiny has opened its port. This
fixes a race condition against scrutiny-collector, which can start (and
fail) before scrutiny is ready.
parent 9ceb0b0d

nixos/modules/services/monitoring/scrutiny.nix

+12 −0
Original line number Diff line number Diff line
@@ -177,6 +177,18 @@ in 
          SCRUTINY_WEB_DATABASE_LOCATION = "/var/lib/scrutiny/scrutiny.db";

          SCRUTINY_WEB_SRC_FRONTEND_PATH = "${cfg.package}/share/scrutiny";

        };

        postStart = ''

          for i in $(seq 300); do

              if "${lib.getExe pkgs.curl}" --fail --silent --head "http://${cfg.settings.web.listen.host}:${toString cfg.settings.web.listen.port}" >/dev/null; then

                  echo "Scrutiny is ready (port is open)"

                  exit 0

              fi

              echo "Waiting for Scrutiny to open port..."

              sleep 0.2

          done

          echo "Timeout waiting for Scrutiny to open port" >&2

          exit 1

        '';

        serviceConfig = {

          DynamicUser = true;

          ExecStart = "${getExe cfg.package} start --config ${settingsFormat.generate "scrutiny.yaml" cfg.settings}";