diff --git a/docker/federation/README.md b/docker/federation/README.md
index b427be79a6..36f5e3937b 100644
--- a/docker/federation/README.md
+++ b/docker/federation/README.md
@@ -18,6 +18,12 @@ docker compose -f docker/federation/compose.yml up -d --build
 docker compose -f docker/federation/compose.yml --profile fedtest run --rm fedtest
 ```
 
+Or via Mix:
+
+```bash
+mix pleroma.fedbox
+```
+
 Cleanup:
 
 ```bash
diff --git a/lib/mix/tasks/pleroma/fedbox.ex b/lib/mix/tasks/pleroma/fedbox.ex
new file mode 100644
index 0000000000..ecb9644839
--- /dev/null
+++ b/lib/mix/tasks/pleroma/fedbox.ex
@@ -0,0 +1,70 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Mix.Tasks.Pleroma.Fedbox do
+  use Mix.Task
+
+  @shortdoc "Runs federation-in-a-box smoke tests (Docker)"
+
+  @impl Mix.Task
+  def run(args) do
+    {opts, _rest} = OptionParser.parse!(args, strict: [keep: :boolean])
+
+    ensure_executable!("docker")
+
+    project_root = Mix.Project.project_file() |> Path.dirname() |> Path.expand()
+    compose_file = Path.join(project_root, "docker/federation/compose.yml")
+
+    unless File.exists?(compose_file) do
+      Mix.raise("fedbox compose file not found: #{compose_file}")
+    end
+
+    Mix.shell().info("Starting fedbox containers...")
+
+    status =
+      try do
+        case docker_compose(["-f", compose_file, "up", "-d", "--build"]) do
+          0 ->
+            Mix.shell().info("Running fedbox tests...")
+
+            docker_compose([
+              "-f",
+              compose_file,
+              "--profile",
+              "fedtest",
+              "run",
+              "--rm",
+              "--build",
+              "fedtest"
+            ])
+
+          status ->
+            status
+        end
+      after
+        unless opts[:keep] do
+          Mix.shell().info("Cleaning up fedbox containers...")
+          _ = docker_compose(["-f", compose_file, "down", "-v"])
+        end
+      end
+
+    if status != 0 do
+      System.halt(status)
+    end
+  end
+
+  defp docker_compose(args) when is_list(args) do
+    {_, status} =
+      System.cmd("docker", ["compose" | args], into: IO.stream(:stdio, :line))
+
+    status
+  end
+
+  defp ensure_executable!(exe) when is_binary(exe) do
+    case System.find_executable(exe) do
+      nil -> Mix.raise("#{exe} not found in PATH")
+      _path -> :ok
+    end
+  end
+end