Uploading images to server

JoeZMar

I currently have an app deployed to fly.io and I am having issues trying to upload images straight to the phoenix server.

I want my images to be uploaded to a /static/uploads folder and served from there.

main_photo_location =
      consume_uploaded_entries(socket, :main_photo_location, fn %{path: path}, entry ->
        dest = Path.join([:code.priv_dir(:artistic_translations), "static", "uploads", "#{entry.uuid}-#{entry.client_name}"])
        IO.inspect(dest, label: "DESTINATION")
        # The `static/uploads` directory must exist for `File.cp!/2`
        # and MyAppWeb.static_paths/0 should contain uploads to work,.
        File.mkdir_p!(Path.dirname(dest))
        File.cp!(path, dest)
        {:ok, "/uploads/" <> Path.basename(dest)}
      end)

    [main_photo_location | _] = main_photo_location

    artwork_params =
      Map.put(artwork_params, "photo_locations", photo_locations)
      |> Map.put("main_photo_location", main_photo_location)

Here is an excerpt from my save event to consume the uploaded images.

I have added my uploads folder to the static_path route so that they can be served.

Right now, I can upload images and they appear where I expected them to be, but if the app restarts or is deployed again they break.

So I ssh into my console and check /app/lib/my_app/priv/static and there is no uploads folder, but the images work when I upload them. I don’t want to use an S3 bucket because there are only a handful of images that need to be uploaded for now. How can I upload to a folder called uploads in my static directory and have it persist when I redeploy? I did rely on the File.mkdir_p!(Path.dirname(dest)) command to create the folder if it doesn’t exist. Any ideas as to what I am doing wrong?

6 comments

/phoenix #file-uploading #image-processing

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2024-02-01 23:23:39 UTC

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JoeZMar

Nevermind, still blows up

Post #1

LostKobrakai

You need volumes for that. As with any docker based system files won’t persist across instances unless you mount some persistent storage into the running docker instance.

Post #2

JoeZMar

So this is my first time using Docker, so that would make sense. I previously used to run Nginx and a ubuntu instance.

Right now I created a volume on fly.io and then put this:

[mounts]
  source="artistic_translations_uploads"
  destination="priv/static/uploads"

in my fly.toml. My uploads still blow up after X amount of time goes by. I can console into the app now and they don’t disappear, but after a little bit of time they are gone.

Post #3

JoeZMar

Okay, so I think I have a grip on it now, but am having another issue.

How do I mount the drive, and access them within the static_path?

fly.toml

[mounts]
  source="artistic_translations_uploads"
  destination="app/uploads"

runtime.exs

config :artistic_translations,
    uploads_dir: "app/uploads"

liveview

def handle_event("save", %{"artwork" => artwork_params}, socket) do
    photo_locations =
      consume_uploaded_entries(socket, :photo_locations, fn %{path: path}, entry ->
        dest = Path.join(["static", "uploads", "#{entry.uuid}-#{entry.client_name}"])
        File.cp!(path, Path.join(uploads_root(), "#{entry.uuid}-#{entry.client_name}"))
        {:ok, "/uploads/" <> Path.basename(dest)}
      end)
...

I can ssh into my console and see that the uploads are being copied into the uploads folder, but my images are not rendering if I use src={~p"/uploads/#{art_path}}"}

What am I doing wrong?

Post #4

thomas.fortes

Can’t test now, but you can try to set up a Plug.Static like this in your endpoint.ex, and adjust at to "/uploads", from to the uploads dir in the system ("/app/uploads"), and since the uploaded files are probably at the root of /app/uploads you don’t need the only option.