Enable Windows CI (Appveyor)
- start list of linux_only plugins; ignore them when testing on Windows - Isolate linux-only code by filename suffix - Remove stub (NotImplemented) functions - other misc. fixes for Windows compatibility
This commit is contained in:
Gabriel Rosenhouse
216
plugins/meta/flannel/flannel_linux_test.go
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216
plugins/meta/flannel/flannel_linux_test.go
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// Copyright 2015 CNI authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"fmt"
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"io/ioutil"
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"os"
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"github.com/containernetworking/cni/pkg/skel"
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"github.com/containernetworking/cni/pkg/types/current"
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"github.com/containernetworking/plugins/pkg/ns"
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"github.com/containernetworking/plugins/pkg/testutils"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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var _ = Describe("Flannel", func() {
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var (
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originalNS ns.NetNS
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input string
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subnetFile string
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dataDir string
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)
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BeforeEach(func() {
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var err error
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originalNS, err = ns.NewNS()
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Expect(err).NotTo(HaveOccurred())
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})
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AfterEach(func() {
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Expect(originalNS.Close()).To(Succeed())
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})
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const inputTemplate = `
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{
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"name": "cni-flannel",
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"type": "flannel",
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"subnetFile": "%s",
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"dataDir": "%s"
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}`
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const flannelSubnetEnv = `
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FLANNEL_NETWORK=10.1.0.0/16
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FLANNEL_SUBNET=10.1.17.1/24
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FLANNEL_MTU=1472
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FLANNEL_IPMASQ=true
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`
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var writeSubnetEnv = func(contents string) string {
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file, err := ioutil.TempFile("", "subnet.env")
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Expect(err).NotTo(HaveOccurred())
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_, err = file.WriteString(contents)
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Expect(err).NotTo(HaveOccurred())
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return file.Name()
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}
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BeforeEach(func() {
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var err error
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// flannel subnet.env
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subnetFile = writeSubnetEnv(flannelSubnetEnv)
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// flannel state dir
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dataDir, err = ioutil.TempDir("", "dataDir")
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Expect(err).NotTo(HaveOccurred())
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input = fmt.Sprintf(inputTemplate, subnetFile, dataDir)
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})
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AfterEach(func() {
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os.Remove(subnetFile)
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os.Remove(dataDir)
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})
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Describe("CNI lifecycle", func() {
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It("uses dataDir for storing network configuration", func() {
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const IFNAME = "eth0"
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targetNs, err := ns.NewNS()
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Expect(err).NotTo(HaveOccurred())
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defer targetNs.Close()
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args := &skel.CmdArgs{
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ContainerID: "some-container-id",
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Netns: targetNs.Path(),
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IfName: IFNAME,
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StdinData: []byte(input),
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}
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err = originalNS.Do(func(ns.NetNS) error {
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defer GinkgoRecover()
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By("calling ADD")
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resI, _, err := testutils.CmdAddWithResult(targetNs.Path(), IFNAME, []byte(input), func() error {
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return cmdAdd(args)
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})
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Expect(err).NotTo(HaveOccurred())
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By("check that plugin writes to net config to dataDir")
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path := fmt.Sprintf("%s/%s", dataDir, "some-container-id")
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Expect(path).Should(BeAnExistingFile())
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netConfBytes, err := ioutil.ReadFile(path)
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Expect(err).NotTo(HaveOccurred())
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expected := `{
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"ipMasq" : false,
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"ipam" : {
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"routes" : [
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{
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"dst" : "10.1.0.0/16"
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}
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],
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"subnet" : "10.1.17.0/24",
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"type" : "host-local"
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},
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"isGateway": true,
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"mtu" : 1472,
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"name" : "cni-flannel",
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"type" : "bridge"
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}
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`
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Expect(netConfBytes).Should(MatchJSON(expected))
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result, err := current.NewResultFromResult(resI)
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Expect(err).NotTo(HaveOccurred())
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Expect(result.IPs).To(HaveLen(1))
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By("calling DEL")
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err = testutils.CmdDelWithResult(targetNs.Path(), IFNAME, func() error {
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return cmdDel(args)
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})
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Expect(err).NotTo(HaveOccurred())
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By("check that plugin removes net config from state dir")
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Expect(path).ShouldNot(BeAnExistingFile())
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By("calling DEL again")
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err = testutils.CmdDelWithResult(targetNs.Path(), IFNAME, func() error {
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return cmdDel(args)
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})
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By("check that plugin does not fail due to missing net config")
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Expect(err).NotTo(HaveOccurred())
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return nil
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})
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Expect(err).NotTo(HaveOccurred())
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})
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})
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Describe("loadFlannelNetConf", func() {
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Context("when subnetFile and dataDir are specified", func() {
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It("loads flannel network config", func() {
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conf, err := loadFlannelNetConf([]byte(input))
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Expect(err).ShouldNot(HaveOccurred())
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Expect(conf.Name).To(Equal("cni-flannel"))
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Expect(conf.Type).To(Equal("flannel"))
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Expect(conf.SubnetFile).To(Equal(subnetFile))
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Expect(conf.DataDir).To(Equal(dataDir))
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})
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})
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Context("when defaulting subnetFile and dataDir", func() {
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BeforeEach(func() {
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input = `{
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"name": "cni-flannel",
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"type": "flannel"
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}`
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})
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It("loads flannel network config with defaults", func() {
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conf, err := loadFlannelNetConf([]byte(input))
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Expect(err).ShouldNot(HaveOccurred())
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Expect(conf.Name).To(Equal("cni-flannel"))
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Expect(conf.Type).To(Equal("flannel"))
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Expect(conf.SubnetFile).To(Equal(defaultSubnetFile))
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Expect(conf.DataDir).To(Equal(defaultDataDir))
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})
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})
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Describe("loadFlannelSubnetEnv", func() {
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Context("when flannel subnet env is valid", func() {
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It("loads flannel subnet config", func() {
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conf, err := loadFlannelSubnetEnv(subnetFile)
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Expect(err).ShouldNot(HaveOccurred())
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Expect(conf.nw.String()).To(Equal("10.1.0.0/16"))
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Expect(conf.sn.String()).To(Equal("10.1.17.0/24"))
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var mtu uint = 1472
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Expect(*conf.mtu).To(Equal(mtu))
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Expect(*conf.ipmasq).To(BeTrue())
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})
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})
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Context("when flannel subnet env is invalid", func() {
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BeforeEach(func() {
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subnetFile = writeSubnetEnv("foo=bar")
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})
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It("returns an error", func() {
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_, err := loadFlannelSubnetEnv(subnetFile)
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Expect(err).To(MatchError(ContainSubstring("missing FLANNEL_NETWORK, FLANNEL_SUBNET, FLANNEL_MTU, FLANNEL_IPMASQ")))
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})
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})
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})
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})
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})
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