chore: Remove ability to create GCP log sinks (#8298)

This has long since been removed in the Clients.

elixir/apps/api/lib/api/client/channel.ex

@@ -1,7 +1,6 @@
 defmodule API.Client.Channel do
   use API, :channel
   alias API.Client.Views
-  alias Domain.Instrumentation
   alias Domain.{Accounts, Clients, Actors, Resources, Gateways, Relays, Policies, Flows}
   require Logger
   require OpenTelemetry.Tracer
@@ -566,40 +565,6 @@ defmodule API.Client.Channel do
   ##### Client-initiated actions #####
   ####################################
 
-  # This message sent by the client to create a GSC signed url for uploading logs and debug artifacts
-  # TODO: This has been disabled on clients. Remove this when no more clients are requesting log sinks.
-  @impl true
-  def handle_in("create_log_sink", _attrs, socket) do
-    OpenTelemetry.Ctx.attach(socket.assigns.opentelemetry_ctx)
-    OpenTelemetry.Tracer.set_current_span(socket.assigns.opentelemetry_span_ctx)
-
-    account_slug = socket.assigns.subject.account.slug
-
-    actor_name =
-      socket.assigns.subject.actor.name
-      |> String.downcase()
-      |> String.replace(" ", "_")
-      |> String.replace(~r/[^a-zA-Z0-9_-]/iu, "")
-
-    OpenTelemetry.Tracer.with_span "client.create_log_sink" do
-      case Instrumentation.create_remote_log_sink(socket.assigns.client, actor_name, account_slug) do
-        {:ok, signed_url} ->
-          {:reply, {:ok, signed_url}, socket}
-
-        {:error, :disabled} ->
-          {:reply, {:error, %{reason: :disabled}}, socket}
-
-        {:error, reason} ->
-          Logger.error("Failed to create log sink for client",
-            client_id: socket.assigns.client.id,
-            reason: inspect(reason)
-          )
-
-          {:reply, {:error, %{reason: :retry_later}}, socket}
-      end
-    end
-  end
-
   # This message is sent to the client to request a network flow with a gateway that can serve given resource.
   #
   # `connected_gateway_ids` is used to indicate that the client is already connected to some of the gateways,

elixir/apps/api/test/api/client/channel_test.exs

@@ -1,6 +1,5 @@
 defmodule API.Client.ChannelTest do
   use API.ChannelCase, async: true
-  alias Domain.Mocks.GoogleCloudPlatform
 
   setup do
     account =
@@ -1023,67 +1022,6 @@ defmodule API.Client.ChannelTest do
     end
   end
 
-  # TODO: This has been disabled on clients. Remove this when no more clients are requesting log sinks.
-  describe "handle_in/3 create_log_sink" do
-    test "returns error when feature is disabled", %{socket: socket} do
-      Domain.Config.put_env_override(Domain.Instrumentation, client_logs_enabled: false)
-
-      ref = push(socket, "create_log_sink", %{})
-      assert_reply ref, :error, %{reason: :disabled}
-    end
-
-    test "returns error when google api is not available", %{socket: socket} do
-      bypass = Bypass.open()
-
-      GoogleCloudPlatform.override_endpoint_url(
-        :metadata_endpoint_url,
-        "http://localhost:#{bypass.port}/"
-      )
-
-      GoogleCloudPlatform.override_endpoint_url(
-        :sign_endpoint_url,
-        "http://localhost:#{bypass.port}/service_accounts/"
-      )
-
-      Bypass.down(bypass)
-
-      ref = push(socket, "create_log_sink", %{})
-      assert_reply ref, :error, %{reason: :retry_later}
-    end
-
-    test "returns a signed URL which can be used to upload the logs", %{
-      account: account,
-      socket: socket,
-      client: client
-    } do
-      bypass = Bypass.open()
-      GoogleCloudPlatform.mock_instance_metadata_token_endpoint(bypass)
-      GoogleCloudPlatform.mock_sign_blob_endpoint(bypass, "foo")
-
-      actor = Repo.get(Domain.Actors.Actor, client.actor_id)
-
-      actor_name =
-        actor.name
-        |> String.downcase()
-        |> String.replace(" ", "_")
-        |> String.replace(~r/[^a-zA-Z0-9_-]/iu, "")
-
-      ref = push(socket, "create_log_sink", %{})
-      assert_reply ref, :ok, signed_url
-
-      assert signed_uri = URI.parse(signed_url)
-      assert signed_uri.scheme == "https"
-      assert signed_uri.host == "storage.googleapis.com"
-
-      assert String.starts_with?(
-               signed_uri.path,
-               "/logs/clients/#{account.slug}/#{actor_name}/#{client.id}/"
-             )
-
-      assert String.ends_with?(signed_uri.path, ".json")
-    end
-  end
-
   describe "handle_in/3 create_flow" do
     test "returns error when resource is not found", %{socket: socket} do
       resource_id = Ecto.UUID.generate()