RUN curl -L "https://github.com/gliderlabs/sigil/releases/download/v0.9.0/gliderlabs-sigil_0.9.0_linux_$(uname -m|tr \ _ | sed s/aarch64/arm64/ | sed s/x86_64/amd64/).tgz"| tar -zxC /usr/local/bin
RUN mv /usr/local/bin/gliderlabs-sigil-$(uname -m|tr \ _ | sed s/aarch64/arm64/ | sed s/x86_64/amd64/) /usr/local/bin/sigil