podman build fails on step 6: Could not find a Mix.Project

[proJM-Coding]

Hello, coming from issue #26 I mentioned that I couldn't build the image when using podman (I haven't tried with docker but I don't expect a difference). I have followed the steps listed in the INSTALL.md under the heading Running matrix2051 as a container:

git clone https://github.com/progval/matrix2051.git

cd matrix2051

podman build -t matrix2051 --file dist/Containerfile .

This fails on set 6 RUN mix deps.get with the error:

** (Mix) Could not find a Mix.Project, please ensure you are running Mix in a directory with a mix.exs file
Error: building at STEP "RUN mix deps.get": while running runtime: exit status 1

Looking at the Containerfile I don't understand why the mix.exs is not being picked up (Edit: I think when it is copying is will copy only the dist folder but this is just a guess. I have done nothing to look into it) so I hope someone can help me. Just in case I made an error, I did write down the error rather than copy since it was on a laptop without a functioning browser.

[progval]

If you add RUN ls . in the containerfile, does it show mix.exs?

[proJM-Coding]

Looks like the edit is correct. Only the Containerfile and systemd folder show when running ls .

Should the copy command be COPY ../ /app instead?

[progval]

Probably. I'm not familiar with containers.

[proJM-Coding]

I'm not that familiar with using a Containerfile but what should be happening is it should copy the the folder before instead of the folder that the Containerfile is in. Currently it will copy the dist folder rather than the matrix2051 folder which has the whole project.

[proJM-Coding]

Moving the Containerfile into the root of the repo fixes this issue, I'm just waiting for it to finish compiling so I can confirm no other issues.

Edit: Everything looks fine. The image finished compiling and is running. Just noticed that #72 did pick up on this issue copies the Containerfile into the root of the repo.

[proJM-Coding]

Hello! Coming back to this issue the real problem is not really with the Containerfile but just that the docs don't state you need to copy it to the root of the project folder. As I said before there is an active pr which add instructions for docker but also says that you need to copy the file. I'll make a better pr which will fix this issue soon

[progval]

I fixed the Containerfile: 0a3989a

[proJM-Coding]

Doesn't fix the issue like I thought it would. I don't really understand why and how the Containerfile works but it is still copying the dist folder

[proJM-Coding]

Pr #84 will fix this since it is just a matter of documentation rather than code.

[progval]

but we shouldn't have to tell users to fix the code themselves

[proJM-Coding]

I don't see it as "fixing the code" but I'll have a look into how the COPY works for the Containerfile

[progval]

and actually it works for me after my fix:

tmp@magnesium:~/matrix2051$ podman build -t matrix2051 --file dist/Containerfile .
STEP 1/8: FROM docker.io/alpine:3.19
STEP 2/8: ENV MIX_ENV=prod
--> Using cache df460095fc6594fb445b22ae047ce80b8d5141433bc654a4868e81a65dd322e6
--> df460095fc6
STEP 3/8: RUN apk add --update --no-cache elixir
fetch https://dl-cdn.alpinelinux.org/alpine/v3.19/main/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/v3.19/community/x86_64/APKINDEX.tar.gz
(1/7) Installing libgcc (13.2.1_git20231014-r0)
(2/7) Installing ncurses-terminfo-base (6.4_p20231125-r0)
(3/7) Installing libncursesw (6.4_p20231125-r0)
(4/7) Installing libstdc++ (13.2.1_git20231014-r0)
(5/7) Installing erlang (26.2.1-r0)
(6/7) Installing erlang-dev (26.2.1-r0)
(7/7) Installing elixir (1.15.7-r2)
Executing busybox-1.36.1-r19.trigger
OK: 91 MiB in 22 packages
--> a216d24a5af
STEP 4/8: WORKDIR /app
--> b081a610779
STEP 5/8: COPY ../ /app
--> aad741f8417
STEP 6/8: RUN mix deps.get
* creating /root/.mix/archives/hex-2.2.1
Resolving Hex dependencies...
Resolution completed in 0.034s
New:
  certifi 2.15.0
  hackney 1.24.1
  httpoison 1.8.2
  idna 6.1.1
  jason 1.4.4
  metrics 1.0.1
  mimerl 1.4.0
  mochiweb 3.2.2
  mox 1.0.2
  parse_trans 3.4.1
  ssl_verify_fun 1.1.7
  unicode_util_compat 0.7.1
* Getting mochiweb (Hex package)
* creating /root/.mix/elixir/1-15/rebar3
* Getting jason (Hex package)
* Getting httpoison (Hex package)
* Getting mox (Hex package)
* Getting hackney (Hex package)
* Getting certifi (Hex package)
* Getting idna (Hex package)
* Getting metrics (Hex package)
* Getting mimerl (Hex package)
* Getting parse_trans (Hex package)
* Getting ssl_verify_fun (Hex package)
* Getting unicode_util_compat (Hex package)
--> 413c83cf473
STEP 7/8: RUN mix release
===> Analyzing applications...
===> Compiling unicode_util_compat
===> Analyzing applications...
===> Compiling idna
==> jason
Compiling 10 files (.ex)
Generated jason app
===> Analyzing applications...
===> Compiling mimerl
==> ssl_verify_fun
Compiling 7 files (.erl)
Generated ssl_verify_fun app
===> Analyzing applications...
===> Compiling certifi
===> Analyzing applications...
===> Compiling parse_trans
===> Analyzing applications...
===> Compiling metrics
===> Analyzing applications...
===> Compiling hackney
==> httpoison
Compiling 3 files (.ex)
Generated httpoison app
===> Analyzing applications...
===> Compiling mochiweb
==> matrix2051
Compiling 26 files (.ex)
warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
  lib/application.ex:31: M51.Application.start/2

warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
  lib/matrix_client/client.ex:528: M51.MatrixClient.Client.get_base_url/2

warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
  lib/matrix_client/client.ex:539: M51.MatrixClient.Client.get_base_url/2

warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
  lib/matrix_client/sender.ex:86: M51.MatrixClient.Sender.loop_send/6

warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
  lib/matrix_client/poller.ex:91: M51.MatrixClient.Poller.poll_one/5

warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
  lib/matrix_client/sender.ex:73: M51.MatrixClient.Sender.loop_send/6

Generated matrix2051 app
* assembling matrix2051-0.1.0 on MIX_ENV=prod
* skipping runtime configuration (config/runtime.exs not found)
* skipping elixir.bat for windows (bin/elixir.bat not found in the Elixir installation)
* skipping iex.bat for windows (bin/iex.bat not found in the Elixir installation)

Release created at _build/prod/rel/matrix2051

    # To start your system
    _build/prod/rel/matrix2051/bin/matrix2051 start

Once the release is running:

    # To connect to it remotely
    _build/prod/rel/matrix2051/bin/matrix2051 remote

    # To stop it gracefully (you may also send SIGINT/SIGTERM)
    _build/prod/rel/matrix2051/bin/matrix2051 stop

To list all commands:

    _build/prod/rel/matrix2051/bin/matrix2051

--> fc966a3ae1d
STEP 8/8: CMD _build/prod/rel/matrix2051/bin/matrix2051 start
COMMIT matrix2051
--> dadd5686913
Successfully tagged localhost/matrix2051:latest
dadd5686913d5c0f5c3ae5cae175e2b06e99c028848b96b3a4f060a283b30dab

[proJM-Coding]

Hmm, I have no clue right now why it doesn't work on my end then. I'll get back to you later.

[progval]

Did you forget to git pull? Or are you pulling from your fork instead of the upstream repo?