我希望在构建 miniconda映像时安装conda并安装docker软件包。我使用以下命令安装miniconda：

FROM nvidia/cuda:10.1-cudnn7-devel-ubuntu18.04
RUN wget --quiet https://repo.anaconda.com/miniconda/Miniconda2-4.5.11-Linux-x86_64.sh -O ~/miniconda.sh && \
/bin/bash ~/miniconda.sh -b -p /opt/conda && \
rm ~/miniconda.sh && \
ln -s /opt/conda/etc/profile.d/conda.sh /etc/profile.d/conda.sh && \
echo ". /opt/conda/etc/profile.d/conda.sh" >> ~/.bashrc && \
echo "conda activate" >> ~/.bashrc

然后我尝试使用以下方法安装conda软件包：

RUN conda install numpy

我收到以下错误：

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

非常感谢您的协助。