No love with first deployment attempt of phoenix app

Questions / Help
1

Here is the error:

Sending build context to Docker daemon 53.15kB
[+] Building 0.7s (4/4) FINISHED
=> [internal] load remote build context 0.0s
=> copy /context / 0.1s
=> ERROR [internal] load metadata for docker.io/hexpm/elixir:1.12.2-erlang-24.0.3-debian-bullseye-20220801-slim 0.6s
=> [internal] load metadata for Docker 0.4s

[internal] load metadata for docker.io/hexpm/elixir:1.12.2-erlang-24.0.3-debian-bullseye-20220801-slim:

Error error building: failed to solve with frontend dockerfile.v0: failed to create LLB definition: docker.io/hexpm/elixir:1.12.2-erlang-24.0.3-debian-bullseye-20220801-slim: not found

Halp?

2

I’m seeing the exact same error (also trying fly for the first time, attempting to deploy a phoenix app).

EDIT: I was able to solve this issue in my project by replacing the base image in the dockerfile with hexpm/elixir:1.14.0-erlang-25.1-debian-bullseye-20220801-slim

3

Hi!

Was that after using fly launch to generate the Dockerfile?

I wonder if we need to update that. I’m not a phoenix dev, but it seems like it’s just a base image selection issue (some base images being removed from Docker Hub perhaps!?)

4

I had the same error, and also resolved it by selecting a different base debian image, but I used a different one than @slondr found success with. I used bullseye-20210902-slim, finding an image in the hexpm list of images that has your exact elixir/erlang combination available seems to be the path forward.

5

Was that after using fly launch to generate the Dockerfile?

In my case, yes, it was. Seems like the default base image has been removed.

6

Thanks, all, changing the ARGS of my Dockerfile to:

ARG ELIXIR_VERSION=1.14.0
ARG OTP_VERSION=25.1
ARG DEBIAN_VERSION=bullseye-20220801-slim

worked for me.