如何调试nvidia docker构建中缺少的路径

我正在创建nvidia docker映像，Dockerfile中包含以下内容：

RUN curl -so /miniconda.sh https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh  && chmod +x /miniconda.sh  && /miniconda.sh -b -p /miniconda  && rm /miniconda.sh
ENV PATH=/miniconda/bin:$PATH
#this is stored in cache ---> fa383a2e1344
# check path
RUN /miniconda/bin/conda

我得到以下错误：

/bin/sh: 1: /miniconda/bin/conda: not found
The command '/bin/sh -c /miniconda/bin/conda' returned a non-zero code: 127

当我使用以下方法测试路径时：

nvidia-docker run --rm fa383a2e1344 ls

则/miniconda不存在，因此出现错误

然后，我修改了Dockerfile，将/miniconda替换为一个env-var路径，即：

ENV CONDA_DIR $HOME/miniconda
# Install Miniconda
RUN curl -so /miniconda.sh https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh \
 && chmod +x /miniconda.sh \
 && /miniconda.sh -b -p CONDA_DIR \
 && rm /miniconda.sh

ENV PATH=$CONDA_DIR:$PATH

# check path
RUN $CONDA_DIR/conda

并获取错误：

/bin/sh: 1: /miniconda/conda: not found
The command '/bin/sh -c $CONDA_DIR/conda' returned a non-zero code: 127

---

我通过将路径设置为当前目录而不是点击

/

   WORKDIR /miniconda
   RUN curl -so ./miniconda.sh https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh \
    && chmod +x ./miniconda.sh \
    && ./miniconda.sh -b -p CONDA_DIR

以下是构建结果，以供参考

  docker build - < Dockerfile 
  Sending build context to Docker daemon  3.072kB
  Step 1/5 : FROM node:12.16.0-alpine
   ---> 466593119d17
  Step 2/5 : RUN apk update && apk add --no-cache curl
   ---> Using cache
   ---> 1d6830c38dfa
  Step 3/5 : WORKDIR /miniconda
   ---> Using cache
   ---> 8ee9890a7109
  Step 4/5 : WORKDIR /miniconda
   ---> Running in 63238c179aea
  Removing intermediate container 63238c179aea
   ---> 52f571393bf6
  Step 5/5 : RUN curl -so ./miniconda.sh https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh       && chmod +x ./miniconda.sh       && ./miniconda.sh -b -p CONDA_DIR
   ---> Running in b59e945ad7a9
  Removing intermediate container b59e945ad7a9
   ---> 74ce06c9af66
  Successfully built 74ce06c9af66

docker构建-466593119d17
步骤2/5：运行apk update&&apk add--no cache curl
--->使用缓存
--->1d6830c38dfa
步骤3/5：WORKDIR/miniconda
--->使用缓存
--->8ee9890a7109
步骤4/5：WORKDIR/miniconda
--->在63238c179aea中运行
拆卸中间容器63238c179aea
--->52f571393bf6
步骤5/5：运行curl-so./miniconda.shhttps://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh       &&chmod+x./miniconda.sh&./miniconda.sh-b-p CONDA_DIR
--->在b59e945ad7a9中运行
拆卸中间容器b59e945ad7a9
--->74ce06c9af66
已成功构建74ce06c9af66