dockerfile.run

gpg1

GNU privacy guard - a PGP implementation (deprecated "classic" version)

Debian

RUN apt-get update && \
    apt-get install -y gnupg1

Ubuntu

RUN apt-get update && \
    apt-get install -y gnupg1

Alpine

RUN apk add gnupg1

Kali Linux

RUN apt-get update && \
    apt-get install -y gnupg1

Fedora

RUN dnf install -y gnupg1

Raspbian

RUN apt-get update && \
    apt-get install -y gnupg1

click the source code to copy install gpg1 on any operating system with command-not-found.com