gpg1
GNU privacy guard - a PGP implementation (deprecated "classic" version)
RUN apt-get update && \
apt-get install -y gnupg1
RUN apt-get update && \
apt-get install -y gnupg1
RUN apk add gnupg1
RUN apt-get update && \
apt-get install -y gnupg1
RUN dnf install -y gnupg1
RUN apt-get update && \
apt-get install -y gnupg1