How to install imgproxy using Docker?

1

I’m trying to install imgproxy using Docker, but not having much luck. I bet it’s pretty straight forward but I don’t have much experience using Docker.

I simply forked the imgproxy repo and added this render.yaml file:

services:
  - type: web
    name: imgproxy
    env: docker
    dockerfilePath: ./docker/Dockerfile
    envVars:
      - key: IMGPROXY_KEY
        sync: false
      - key: IMGPROXY_SALT
        sync: false

During deploy I get the following error:

Jul 11 03:09:37 PM  ==> Cloning from https://github.com/marckohlbrugge/imgproxy...
Jul 11 03:09:43 PM  ==> Checking out commit 9627ee6de418f62db524452cf7ae973ca6bf897f in branch master
Jul 11 03:09:57 PM  #2 [internal] load .dockerignore
Jul 11 03:09:57 PM  #2 sha256:56b9f36a1a7cd5c9accdb11a311a9f4d970b9c0852af2b936a61a31bed9f8828
Jul 11 03:09:58 PM  #2 transferring context:
Jul 11 03:09:58 PM  #2 transferring context: 157B done
Jul 11 03:09:58 PM  #2 ...
Jul 11 03:09:58 PM  
Jul 11 03:09:58 PM  #1 [internal] load build definition from Dockerfile
Jul 11 03:09:58 PM  #1 sha256:b3de8aa72aa3e0ee946f234e0eeab79fcab4935c14e80aa9c060e541e5a943c1
Jul 11 03:09:58 PM  #1 transferring dockerfile: 2B done
Jul 11 03:09:58 PM  #1 DONE 0.7s
Jul 11 03:09:58 PM  
Jul 11 03:09:58 PM  #2 [internal] load .dockerignore
Jul 11 03:09:58 PM  #2 sha256:56b9f36a1a7cd5c9accdb11a311a9f4d970b9c0852af2b936a61a31bed9f8828
Jul 11 03:09:58 PM  #2 DONE 0.9s
Jul 11 03:09:58 PM  error: failed to solve: rpc error: code = Unknown desc = failed to solve with frontend dockerfile.v0: failed to read dockerfile: open /home/user/.local/tmp/buildkit-mount688216287/Dockerfile: no such file or directory
Jul 11 03:09:58 PM  error: exit status 1

Looks like it can’t find the Docker file despite having configured its location.

Any advice?

2

Configuring the dockerContext seems to help. The log is much longer with lots of successful commands. But it ends with this error:

…
Jul 11 03:17:12 PM   > [stage-1 5/5] COPY NOTICE /usr/local/share/doc/imgproxy/:
Jul 11 03:17:12 PM  ------
Jul 11 03:17:12 PM  Dockerfile:27
Jul 11 03:17:12 PM  --------------------
Jul 11 03:17:12 PM    25 |     COPY --from=0 /usr/local/lib /usr/local/lib
Jul 11 03:17:12 PM    26 |
Jul 11 03:17:12 PM    27 | >>> COPY NOTICE /usr/local/share/doc/imgproxy/
Jul 11 03:17:12 PM    28 |
Jul 11 03:17:12 PM    29 |     ENV VIPS_WARNING=0
Jul 11 03:17:12 PM  --------------------
Jul 11 03:17:12 PM  error: failed to solve: rpc error: code = Unknown desc = failed to compute cache key: "/NOTICE" not found: not found
Jul 11 03:17:12 PM  error: exit status 1

So it seems like COPY NOTICE /usr/local/share/doc/imgproxy/ fails. NOTICE is a text file in the root. Looks like it cannot be found.

3

BTW, I did find the follow installation instructions as well. But I’m not sure how to use this on Render?

imgproxy can (and should) be used as a standalone application inside a Docker container. Just pull the official image from Docker Hub:

docker pull darthsim/imgproxy:latest
docker run -p 8080:8080 -it darthsim/imgproxy

You can also build your own image. imgproxy is ready to be dockerized, plug and play:

docker build -f docker/Dockerfile -t imgproxy .
docker run -p 8080:8080 -it imgproxy
4

Figured it out.

All it takes is a GitHub repo with one Dockerfile. It should have this content:

FROM darthsim/imgproxy:latest

That tells it to use the latest darthsim/imgproxy image.