Add Ubuntu 20.04 Focal Fossa

Signed-off-by: DeeDeeG <DeeDeeG@users.noreply.github.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 1baf61a)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: a0cdb993c9381cc6d814e02190f8235a79238215
Component: packaging

Author: DeeDeeG

components/packaging/README.md

@@ -7,6 +7,7 @@ This repository is solely maintained by Docker, Inc.
 
 The scripts will build for this list of packages types:
 
+* DEB packages for Ubuntu 20.04 Focal
 * DEB packages for Ubuntu 19.10 Eoan
 * DEB packages for Ubuntu 19.04 Disco
 * DEB packages for Ubuntu 18.10 Cosmic

components/packaging/deb/Makefile

@@ -39,7 +39,7 @@ SOURCE_FILES=cli.tgz engine.tgz docker.service docker.socket plugin-installers.t
 SOURCES=$(addprefix sources/, $(SOURCE_FILES))
 
 DEBIAN_VERSIONS := debian-stretch debian-buster
-UBUNTU_VERSIONS := ubuntu-xenial ubuntu-bionic ubuntu-cosmic ubuntu-disco ubuntu-eoan
+UBUNTU_VERSIONS := ubuntu-xenial ubuntu-bionic ubuntu-cosmic ubuntu-disco ubuntu-eoan ubuntu-focal
 RASPBIAN_VERSIONS := raspbian-stretch raspbian-buster
 DISTROS := $(DEBIAN_VERSIONS) $(UBUNTU_VERSIONS) $(RASPBIAN_VERSIONS)
 

components/packaging/deb/ubuntu-focal/Dockerfile

@@ -0,0 +1,41 @@
+ARG GO_IMAGE
+ARG DISTRO=ubuntu
+ARG SUITE=focal
+ARG BUILD_IMAGE=${DISTRO}:${SUITE}
+
+FROM ${GO_IMAGE} AS golang
+
+FROM ${BUILD_IMAGE}
+
+# Remove diverted man binary to prevent man-pages being replaced with "minimized" message. See docker/for-linux#639
+RUN if  [ "$(dpkg-divert --truename /usr/bin/man)" = "/usr/bin/man.REAL" ]; then \
+        rm -f /usr/bin/man; \
+        dpkg-divert --quiet --remove --rename /usr/bin/man; \
+    fi
+
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install -y curl devscripts equivs git
+
+ENV GOPROXY=direct
+ENV GO111MODULE=off
+ENV GOPATH /go
+ENV PATH $PATH:/usr/local/go/bin:$GOPATH/bin
+ENV DOCKER_BUILDTAGS apparmor seccomp selinux
+ENV RUNC_BUILDTAGS apparmor seccomp selinux
+
+ARG COMMON_FILES
+COPY ${COMMON_FILES} /root/build-deb/debian
+RUN mk-build-deps -t "apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends -y" -i /root/build-deb/debian/control
+
+COPY sources/ /sources
+ARG DISTRO
+ARG SUITE
+ENV DISTRO=${DISTRO}
+ENV SUITE=${SUITE}
+
+COPY --from=golang /usr/local/go /usr/local/go
+
+WORKDIR /root/build-deb
+COPY build-deb /root/build-deb/build-deb
+
+ENTRYPOINT ["/root/build-deb/build-deb"]