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containers: CNI: introduce container networking interface

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Introducing the CNI framework to allow platforms such as
kubernetes + cri-o to use thm for networking configuration.

The networking plugins are installed, but are not configured
by default to create any specific networking interfaces, which
are the responsibility of the image and distribution.

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
This commit is contained in:
Bruce Ashfield 2017-10-02 09:05:54 -04:00
parent 0ff8923f08
commit 176715435e
1 changed files with 93 additions and 0 deletions
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93
recipes-networking/cni/cni_git.bb Normal file
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HOMEPAGE = "https://github.com/containernetworking/cni"
SUMMARY = "Container Network Interface - networking for Linux containers"
DESCRIPTION = "CNI (Container Network Interface), a Cloud Native Computing \
Foundation project, consists of a specification and libraries for writing \
plugins to configure network interfaces in Linux containers, along with a \
number of supported plugins. CNI concerns itself only with network connectivity \
of containers and removing allocated resources when the container is deleted. \
Because of this focus, CNI has a wide range of support and the specification \
is simple to implement. \
"
SRCREV_cni = "4b9e11a5266fe50222ed00c5973c6ea4a384a4bb"
SRCREV_plugins = "c238c93b5e7c681f1935ff813b30e82f96f6c367"
SRC_URI = "\
git://github.com/containernetworking/cni.git;nobranch=1;name=cni \
git://github.com/containernetworking/plugins.git;nobranch=1;destsuffix=plugins;name=plugins \
"
LICENSE = "Apache-2.0"
LIC_FILES_CHKSUM = "file://src/import/LICENSE;md5=fa818a259cbed7ce8bc2a22d35a464fc"
GO_IMPORT = "import"
PV = "0.6.0+git${SRCREV_cni}"
inherit go
inherit goarch
do_compile() {
export GOARCH="${TARGET_GOARCH}"
export GOROOT="${STAGING_LIBDIR_NATIVE}/${TARGET_SYS}/go"
export GOPATH="${S}/src/import:${S}/src/import/vendor"
# Pass the needed cflags/ldflags so that cgo
# can find the needed headers files and libraries
export CGO_ENABLED="1"
export CFLAGS=""
export LDFLAGS=""
export CGO_CFLAGS="${BUILDSDK_CFLAGS} --sysroot=${STAGING_DIR_TARGET}"
export CGO_LDFLAGS="${BUILDSDK_LDFLAGS} --sysroot=${STAGING_DIR_TARGET}"
# link fixups for compilation
rm -f ${S}/src/import/vendor/src
ln -sf ./ ${S}/src/import/vendor/src
rm -rf ${S}/src/import/plugins
rm -rf ${S}/src/import/vendor/github.com/containernetworking/plugins
mkdir -p ${S}/src/import/vendor/github.com/containernetworking/cni
ln -sf ../../../../libcni ${S}/src/import/vendor/github.com/containernetworking/cni/libcni
ln -sf ../../../../pkg ${S}/src/import/vendor/github.com/containernetworking/cni/pkg
ln -sf ../../../../cnitool ${S}/src/import/vendor/github.com/containernetworking/cni/cnitool
ln -sf ${WORKDIR}/plugins ${S}/src/import/vendor/github.com/containernetworking/plugins
export GOPATH="${S}/src/import/.gopath:${S}/src/import/vendor:${STAGING_DIR_TARGET}/${prefix}/local/go"
export GOROOT="${STAGING_DIR_NATIVE}/${nonarch_libdir}/${HOST_SYS}/go"
# Pass the needed cflags/ldflags so that cgo
# can find the needed headers files and libraries
export CGO_ENABLED="1"
export CGO_CFLAGS="${CFLAGS} --sysroot=${STAGING_DIR_TARGET}"
export CGO_LDFLAGS="${LDFLAGS} --sysroot=${STAGING_DIR_TARGET}"
cd ${S}/src/import/vendor/github.com/containernetworking/cni/libcni
go build
cd ${S}/src/import/vendor/github.com/containernetworking/cni/cnitool
go build
cd ${S}/src/import/vendor/github.com/containernetworking/plugins/
PLUGINS="plugins/meta/* plugins/main/*"
mkdir -p ${WORKDIR}/plugins/bin/
for p in $PLUGINS; do
plugin="$(basename "$p")"
echo "building: $p"
go build -o ${WORKDIR}/plugins/bin/$plugin github.com/containernetworking/plugins/$p
done
}
do_install() {
localbindir="/usr/local/bin"
install -d ${D}${localbindir}
install -d ${D}/${sysconfdir}/cni/net.d
install -m 755 ${S}/src/import/cnitool/cnitool ${D}/${localbindir}
install -m 755 -D ${WORKDIR}/plugins/bin/* ${D}/${localbindir}
}
FILES_${PN} += "/usr/local/bin/*"
INHIBIT_PACKAGE_STRIP = "1"
INSANE_SKIP_${PN} += "ldflags already-stripped"