84 lines
2.4 KiB
Go
84 lines
2.4 KiB
Go
// Copyright 2016 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 libcni_test
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import (
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"fmt"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"github.com/containernetworking/cni/libcni"
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"github.com/containernetworking/cni/pkg/version/legacy_examples"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"github.com/onsi/gomega/gexec"
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)
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var _ = Describe("Backwards compatibility", func() {
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It("correctly handles the response from a legacy plugin", func() {
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example := legacy_examples.V010
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pluginPath, err := example.Build()
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Expect(err).NotTo(HaveOccurred())
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netConf, err := libcni.ConfFromBytes([]byte(fmt.Sprintf(
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`{ "name": "old-thing", "type": "%s" }`, example.Name)))
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Expect(err).NotTo(HaveOccurred())
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runtimeConf := &libcni.RuntimeConf{
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ContainerID: "some-container-id",
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NetNS: "/some/netns/path",
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IfName: "eth0",
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}
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cniConfig := &libcni.CNIConfig{Path: []string{filepath.Dir(pluginPath)}}
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result, err := cniConfig.AddNetwork(netConf, runtimeConf)
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Expect(err).NotTo(HaveOccurred())
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Expect(result).To(Equal(legacy_examples.ExpectedResult))
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Expect(os.RemoveAll(pluginPath)).To(Succeed())
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})
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It("correctly handles the request from a runtime with an older libcni", func() {
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// We need to be root (or have CAP_SYS_ADMIN...)
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if os.Geteuid() != 0 {
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Fail("must be run as root")
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}
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example := legacy_examples.V010_Runtime
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binPath, err := example.Build()
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Expect(err).NotTo(HaveOccurred())
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for _, configName := range example.NetConfs {
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configStr, ok := legacy_examples.NetConfs[configName]
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if !ok {
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Fail("Invalid config name " + configName)
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}
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cmd := exec.Command(binPath, pluginDirs...)
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cmd.Stdin = strings.NewReader(configStr)
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session, err := gexec.Start(cmd, GinkgoWriter, GinkgoWriter)
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Expect(err).NotTo(HaveOccurred())
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Eventually(session).Should(gexec.Exit(0))
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}
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})
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})
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