RUN curl -L https://github.com/fluxcd/flux2/releases/download/${FLUX_VERSION}/flux_$(sed's/^v//g'<<<${FLUX_VERSION})_linux_amd64.tar.gz | tar xvzf - flux \
RUN curl -L https://github.com/fluxcd/flux2/releases/download/${FLUX_VERSION}/flux_$(sed's/^v//g'<<<${FLUX_VERSION})_linux_amd64.tar.gz | tar xvzf - flux \