docker: Make docker image on CentOS 7

- Build rpm package from source on CentOS 7
- Use multi-stage builds to reduce docker image size

Signed-off-by: Toshiki Tsuchiya <taruta0811@gmail.com>
This commit is contained in:
Toshiki Tsuchiya 2019-11-24 20:28:54 +00:00
parent 75b3bd3534
commit 46661cdc15
4 changed files with 87 additions and 0 deletions

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**/*.so
**/.libs
docker/alpine/pkgs
docker/centos/pkgs

43
docker/centos/Dockerfile Normal file
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# This stage builds an rpm from the source
FROM centos:centos7 as centos-builder
RUN yum install -y rpm-build autoconf automake libtool make \
readline-devel texinfo net-snmp-devel groff pkgconfig \
json-c-devel pam-devel bison flex pytest c-ares-devel \
python-devel systemd-devel python-sphinx libcap-devel \
https://ci1.netdef.org/artifact/LIBYANG-YANGRELEASE/shared/build-10/CentOS-7-x86_64-Packages/libyang-0.16.111-0.x86_64.rpm \
https://ci1.netdef.org/artifact/LIBYANG-YANGRELEASE/shared/build-10/CentOS-7-x86_64-Packages/libyang-devel-0.16.111-0.x86_64.rpm \
https://ci1.netdef.org/artifact/RPKI-RTRLIB/shared/build-110/CentOS-7-x86_64-Packages/librtr-0.7.0-1.el7.centos.x86_64.rpm \
https://ci1.netdef.org/artifact/RPKI-RTRLIB/shared/build-110/CentOS-7-x86_64-Packages/librtr-devel-0.7.0-1.el7.centos.x86_64.rpm
COPY . /src
ARG PKGVER
RUN echo '%_smp_mflags %( echo "-j$(/usr/bin/getconf _NPROCESSORS_ONLN)"; )' >> /root/.rpmmacros \
&& cd /src \
&& ./bootstrap.sh \
&& ./configure \
--enable-rpki \
--enable-numeric-version \
--with-pkg-extra-version="_git$PKGVER" \
&& make dist \
&& cd / \
&& mkdir -p /rpmbuild/{SOURCES,SPECS} \
&& cp /src/frr*.tar.gz /rpmbuild/SOURCES \
&& cp /src/redhat/frr.spec /rpmbuild/SPECS \
&& rpmbuild \
--define "_topdir /rpmbuild" \
-ba /rpmbuild/SPECS/frr.spec
# This stage installs frr from the rpm
FROM centos:centos7
RUN mkdir -p /pkgs/rpm \
&& yum install -y https://ci1.netdef.org/artifact/LIBYANG-YANGRELEASE/shared/build-10/CentOS-7-x86_64-Packages/libyang-0.16.111-0.x86_64.rpm \
https://ci1.netdef.org/artifact/RPKI-RTRLIB/shared/build-110/CentOS-7-x86_64-Packages/librtr-0.7.0-1.el7.centos.x86_64.rpm
COPY --from=centos-builder /rpmbuild/RPMS/ /pkgs/rpm/
RUN yum install -y /pkgs/rpm/*/*.rpm \
&& rm -rf /pkgs
COPY docker/centos/docker-start /usr/lib/frr/docker-start
ENTRYPOINT [ "/usr/lib/frr/docker-start" ]

31
docker/centos/build.sh Executable file
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#!/bin/sh
set -e
##
# Package version needs to be decimal
##
GITREV="$(git rev-parse --short=10 HEAD)"
PKGVER="$(printf '%u\n' 0x$GITREV)"
mkdir -p docker/centos/pkgs
docker build \
--file=docker/centos/Dockerfile \
--build-arg="PKGVER=$PKGVER" \
--tag="frr:centos-builder-$GITREV" \
--target=centos-builder \
.
# Copy RPM package from container to host
CONTAINER_ID="$(docker create "frr:centos-builder-$GITREV")"
docker cp "${CONTAINER_ID}:/rpmbuild/RPMS/x86_64/" docker/centos/pkgs
docker rm "${CONTAINER_ID}"
docker build \
--cache-from="frr:centos-builder-$GITREV" \
--file=docker/centos/Dockerfile \
--build-arg="PKGVER=$PKGVER" \
--tag="frr:centos-$GITREV" \
.
docker rmi "frr:centos-builder-$GITREV"

12
docker/centos/docker-start Executable file
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#!/bin/sh
set -e
##
# Change owner for docker volume mount
##
chown -R frr:frr /etc/frr
/usr/lib/frr/frrinit.sh start
# Sleep forever
exec tail -f /dev/null