diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000000000000000000000000000000000000..78bf9c6953904814d2a138540a9bb4e8d72b930b --- /dev/null +++ b/Dockerfile @@ -0,0 +1,22 @@ +FROM centos:7 as scratch +ENV GOSU_VERSION 1.10 +RUN set -ex; \ + \ + yum -y install epel-release; \ + yum -y install wget dpkg; \ + \ + dpkgArch="$(dpkg --print-architecture | awk -F- '{ print $NF }')"; \ + wget -O /usr/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch"; \ + wget -O /tmp/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch.asc"; \ + \ +# verify the signature + export GNUPGHOME="$(mktemp -d)"; \ + gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \ + gpg --batch --verify /tmp/gosu.asc /usr/bin/gosu; \ + \ + chmod +x /usr/bin/gosu; \ +# verify that the binary works + gosu nobody true + +FROM centos:7 +COPY --from=scratch /usr/bin/gosu /usr/local/bin/