假设你已经成功安装了docker工具箱，包括docker-compose和docker-machine。这是docker-compose。yml

version: '2'
services: 
  web: ./www/python
  ports:
   - "5000:5000"

这是在Dockerfile下

FROM python:3.4-alpine
ADD ./www/python /code
WORKDIR /code
RUN pip install -r requirements.txt
CMD ["python", "app.py"]

确保这些文件精确地位于根文件夹下。当你运行docker-compose up时，你将为web构建image。

注意这里有个点。在两个命令的末尾。

docker build -f MyDockerfile .

或者带一个标签:

docker build -t mysuperimage -f MyDockerfile .

这个应该可以，

Docker build -t <tag-name> -f <file-name>。

docker build的最后一个参数是build路径。这意味着这是您将找到Dockerfile的路径。当你把它改成Dockerfile时。然后它会尝试寻找Dockerfile。app/Dockerfile不正确。

我不确定它是否还能工作，但你过去可以这样做。

$ docker build -t deepak/app - < Dockerfile.app

尝试一下，看看它是否有帮助，如果没有，也许可以打开一个docker问题，重新添加这个特性，或者更新如何使用Dockerfile的不同名称的文档。

更多信息请访问:http://docs.docker.io/en/latest/commandline/command/build/

你也可以使用docker-compose来实现这一点。

在你码头式的写作中。在build section下，你可以指定存放dockerfile的目录和它的alternate-name，如下所示:

build:
  context: "/path/to/docker/directory"
  dockerfile: "dockerfile-alternate-name"

docker-compose

对我来说，一旦我把整个路径放在文件选项中，它就起作用了:

(meta_learning) brandomiranda~ ❯ docker build -f ~/iit-term-synthesis/Dockerfile_arm -t brandojazz/iit-term-synthesis:test_arm ~/iit-term-synthesis/

[+] Building 43.8s (9/28)
 => [internal] load build definition from Dockerfile_arm                                                                                           0.0s
 => => transferring dockerfile: 2.59kB                                                                                                             0.0s
 => [internal] load .dockerignore                                                                                                                  0.0s
 => => transferring context: 2B                                                                                                                    0.0s
 => [internal] load metadata for docker.io/continuumio/miniconda3:latest                                                                           0.0s
 => [ 1/24] FROM docker.io/continuumio/miniconda3                                                                                                  0.0s
 => CACHED https://api.github.com/repos/IBM/pycoq/git/refs/heads/main                                                                              0.0s
 => [ 2/24] RUN apt-get update   && apt-get install -y --no-install-recommends     ssh     git     m4     libgmp-dev     opam     wget     ca-ce  14.9s
 => [ 3/24] RUN useradd -m bot                                                                                                                     0.2s
 => [ 4/24] WORKDIR /home/bot                                                                                                                      0.0s
 => [ 5/24] ADD https://api.github.com/repos/IBM/pycoq/git/refs/heads/main version.json                                                            0.0s
 => [ 6/24] RUN opam init --disable-sandboxing                                                                                                    28.6s
 => => # [ocaml-base-compiler.4.14.0] downloaded from cache at https://opam.ocaml.org/cache
 => => # <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
 => => # ∗ installed base-bigarray.base
 => => # ∗ installed base-threads.base
 => => # ∗ installed base-unix.base
 => => # ∗ installed ocaml-options-vanilla.1

这对我来说是失败的:

(meta_learning) brandomiranda~ ❯ docker build -f Dockerfile_arm -t brandojazz/iit-term-synthesis:test_arm ~/iit-term-synthesis/
[+] Building 0.0s (1/2)
 => ERROR [internal] load build definition from Dockerfile_arm                                                                                     0.0s
 => => transferring dockerfile: 40B                                                                                                                0.0s
------
 > [internal] load build definition from Dockerfile_arm:
------
failed to solve with frontend dockerfile.v0: failed to read dockerfile: error from sender: open .Trash: operation not permitted