• tastyminerals (87/87) Dec 02 2021 I am trying to create a Docker image where I can build my dub
• russhy (5/5) Dec 02 2021 The first thing i'd check:

tastyminerals <tastyminerals gmail.com> writes:

I am trying to create a Docker image where I can build my dub 
project. Here is a simple Dockerfile.

```
FROM ubuntu as build

RUN apt-get update \
     && apt-get install --no-install-recommends -y -q locales 
build-essential apt-transport-https ca-certificates dub\
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

WORKDIR /compiling
COPY source source
COPY dub.json .

RUN dub build -b release
```

When I try to run `docker build .`, I get the following output:

```
[+] Building 1.0s (10/10) FINISHED
  => [internal] load build definition from Dockerfile              
                                                                   
                                                                   
                                                                   
  0.0s
  => => transferring dockerfile: 424B                              
                                                                   
                                                                   
                                                                   
  0.0s
  => [internal] load .dockerignore                                 
                                                                   
                                                                   
                                                                   
  0.0s
  => => transferring context: 2B                                   
                                                                   
                                                                   
                                                                   
  0.0s
  => [internal] load metadata for docker.io/library/ubuntu:latest  
                                                                   
                                                                   
                                                                   
  0.6s
  => [internal] load build context                                 
                                                                   
                                                                   
                                                                   
  0.0s
  => => transferring context: 2.41kB                               
                                                                   
                                                                   
                                                                   
  0.0s
  => [1/6] FROM 
docker.io/library/ubuntu sha256:626ffe58f6e7566e00254b638eb7e0f3b11d4da96750
8f4781a50ae288f3322                                                            
                                                                               
             0.0s
  => CACHED [2/6] RUN apt-get update     && apt-get install 
--no-install-recommends -y -q locales build-essential 
apt-transport-https ca-certificates dub    && apt-get clean     
&& rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*                  
                       0.0s
  => CACHED [3/6] WORKDIR /compiling                               
                                                                   
                                                                   
                                                                   
  0.0s
  => CACHED [4/6] COPY source source                               
                                                                   
                                                                   
                                                                   
  0.0s
  => CACHED [5/6] COPY dub.json .                                  
                                                                   
                                                                   
                                                                   
  0.0s
  => ERROR [6/6] RUN dub build -b release                          
                                                                   
                                                                   
                                                                   
  0.2s
------
  > [6/6] RUN dub build -b release:

_D3std3net4curl4HTTP9__mixin376onSendMFNdDFAvZmZv
```

I am running this from M1 MacBook but was successfully using 
similar Dockerfile with dub on a Linux machine. Could it be the 
issue?

russhy <russhyy gmail.com> writes:

The first thing i'd check:

- make sure you have curl installed on your docker image
- make sure you link with the curl library (since you are using 
dub)


That's on the notes: https://dlang.org/phobos/std_net_curl.html