f27 with perms fixup

DockerFile

FROM fedora

RUN dnf groupinstall -y "C Development Tools and Libraries"
RUN dnf install -y cmake ninja-build

RUN dnf install -y wget dpkg gpg
ENV GOSU_VERSION 1.10
RUN set -ex; \
#download gosu
    dpkgArch="$(dpkg --print-architecture | awk -F- '{ print $NF }')"; \
    wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch"; \
    wget -O /tmp/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch.asc"; \
# verify signature
    export GNUPGHOME="$(mktemp -d)"; \
    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
    gpg --batch --verify /tmp/gosu.asc /usr/local/bin/gosu; \
    rm -r "$GNUPGHOME" /tmp/gosu.asc; \
    chmod +x /usr/local/bin/gosu; \
# verify gosu works
    gosu nobody true; \
    dnf -y remove wget dpkg gpg; \
    dnf clean all

COPY entrypoint.sh /usr/local/bin/entrypoint.sh
RUN chmod u+x /usr/local/bin/entrypoint.sh

ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]