swap miniconda for mambaforge & mamba

buildbucket/Dockerfile

@@ -10,11 +10,13 @@ COPY package.sh .
 # Install the `which` command for debugging
 RUN yum -y install which git && yum clean all
 
-# Download and install miniconda
-# Copied from https://hub.docker.com/r/continuumio/miniconda3/dockerfile)
-RUN curl -o miniconda.sh https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh && \
-    /bin/bash miniconda.sh -b -p $HOME/miniconda && \
-    ln -s $HOME/miniconda/etc/profile.d/conda.sh /etc/profile.d/conda.sh && \
-    echo ". $HOME/miniconda/etc/profile.d/conda.sh" >> ~/.bashrc && \
+# Download and install miniforge
+# https://github.com/conda-forge/miniforge#miniforge
+RUN curl -L -O https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-$(uname)-$(uname -m).sh && \
+    /bin/bash Mambaforge-$(uname)-$(uname -m).sh -b -p $HOME/miniforge && \
+    ln -s $HOME/miniforge/etc/profile.d/conda.sh /etc/profile.d/conda.sh && \
+    echo ". $HOME/miniforge/etc/profile.d/conda.sh" >> ~/.bashrc && \
     echo "conda activate base" >> ~/.bashrc
-RUN /bin/bash -c "$HOME/miniconda/bin/conda env create -n build -f buildbucket_environment.yaml"
+
+RUN /bin/bash -c "$HOME/miniforge/bin/conda install mamba -n base -c conda-forge"
+RUN /bin/bash -c "$HOME/miniforge/bin/mamba env create -n build -f buildbucket_environment.yaml"