2d64ab8d79
Runc 1.1 throws a warning when using rel destination paths, and runc 1.2 is planning to thow an error (i.e. won't start the container). Let's just make this an abs path in the only place it might not be: the mounts created due to `VOLUME` directives in the Dockerfile. Signed-off-by: Rodrigo Campos <rodrigoca@microsoft.com>
655 lines
20 KiB
Go
655 lines
20 KiB
Go
/*
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Copyright The containerd Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package sbserver
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import (
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"context"
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"errors"
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"os"
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"path/filepath"
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goruntime "runtime"
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"testing"
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ostesting "github.com/containerd/containerd/pkg/os/testing"
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"github.com/containerd/containerd/platforms"
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imagespec "github.com/opencontainers/image-spec/specs-go/v1"
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runtimespec "github.com/opencontainers/runtime-spec/specs-go"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
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"github.com/containerd/containerd/oci"
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"github.com/containerd/containerd/pkg/cri/config"
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"github.com/containerd/containerd/pkg/cri/constants"
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"github.com/containerd/containerd/pkg/cri/opts"
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)
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var currentPlatform = platforms.DefaultSpec()
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func checkMount(t *testing.T, mounts []runtimespec.Mount, src, dest, typ string,
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contains, notcontains []string) {
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found := false
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for _, m := range mounts {
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if m.Source == src && m.Destination == dest {
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assert.Equal(t, m.Type, typ)
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for _, c := range contains {
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assert.Contains(t, m.Options, c)
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}
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for _, n := range notcontains {
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assert.NotContains(t, m.Options, n)
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}
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found = true
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break
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}
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}
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assert.True(t, found, "mount from %q to %q not found", src, dest)
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}
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const testImageName = "container-image-name"
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func TestGeneralContainerSpec(t *testing.T) {
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testID := "test-id"
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testPid := uint32(1234)
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containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
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ociRuntime := config.Runtime{}
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c := newTestCRIService()
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testSandboxID := "sandbox-id"
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testContainerName := "container-name"
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spec, err := c.buildContainerSpec(currentPlatform, testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
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require.NoError(t, err)
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specCheck(t, testID, testSandboxID, testPid, spec)
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}
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func TestPodAnnotationPassthroughContainerSpec(t *testing.T) {
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switch goruntime.GOOS {
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case "darwin":
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t.Skip("not implemented on Darwin")
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case "freebsd":
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t.Skip("not implemented on FreeBSD")
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}
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testID := "test-id"
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testSandboxID := "sandbox-id"
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testContainerName := "container-name"
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testPid := uint32(1234)
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for _, test := range []struct {
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desc string
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podAnnotations []string
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configChange func(*runtime.PodSandboxConfig)
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specCheck func(*testing.T, *runtimespec.Spec)
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}{
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{
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desc: "a passthrough annotation should be passed as an OCI annotation",
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podAnnotations: []string{"c"},
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specCheck: func(t *testing.T, spec *runtimespec.Spec) {
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assert.Equal(t, spec.Annotations["c"], "d")
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},
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},
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{
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desc: "a non-passthrough annotation should not be passed as an OCI annotation",
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configChange: func(c *runtime.PodSandboxConfig) {
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c.Annotations["d"] = "e"
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},
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podAnnotations: []string{"c"},
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specCheck: func(t *testing.T, spec *runtimespec.Spec) {
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assert.Equal(t, spec.Annotations["c"], "d")
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_, ok := spec.Annotations["d"]
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assert.False(t, ok)
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},
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},
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{
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desc: "passthrough annotations should support wildcard match",
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configChange: func(c *runtime.PodSandboxConfig) {
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c.Annotations["t.f"] = "j"
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c.Annotations["z.g"] = "o"
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c.Annotations["z"] = "o"
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c.Annotations["y.ca"] = "b"
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c.Annotations["y"] = "b"
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},
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podAnnotations: []string{"t*", "z.*", "y.c*"},
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specCheck: func(t *testing.T, spec *runtimespec.Spec) {
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t.Logf("%+v", spec.Annotations)
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assert.Equal(t, spec.Annotations["t.f"], "j")
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assert.Equal(t, spec.Annotations["z.g"], "o")
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assert.Equal(t, spec.Annotations["y.ca"], "b")
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_, ok := spec.Annotations["y"]
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assert.False(t, ok)
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_, ok = spec.Annotations["z"]
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assert.False(t, ok)
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},
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},
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} {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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c := newTestCRIService()
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containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
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if test.configChange != nil {
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test.configChange(sandboxConfig)
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}
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ociRuntime := config.Runtime{
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PodAnnotations: test.podAnnotations,
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}
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spec, err := c.buildContainerSpec(currentPlatform, testID, testSandboxID, testPid, "", testContainerName, testImageName,
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containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
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assert.NoError(t, err)
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assert.NotNil(t, spec)
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specCheck(t, testID, testSandboxID, testPid, spec)
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if test.specCheck != nil {
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test.specCheck(t, spec)
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}
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})
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}
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}
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func TestContainerSpecCommand(t *testing.T) {
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for _, test := range []struct {
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desc string
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criEntrypoint []string
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criArgs []string
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imageEntrypoint []string
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imageArgs []string
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expected []string
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expectErr bool
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}{
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{
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desc: "should use cri entrypoint if it's specified",
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criEntrypoint: []string{"a", "b"},
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imageEntrypoint: []string{"c", "d"},
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imageArgs: []string{"e", "f"},
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expected: []string{"a", "b"},
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},
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{
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desc: "should use cri entrypoint if it's specified even if it's empty",
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criEntrypoint: []string{},
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criArgs: []string{"a", "b"},
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imageEntrypoint: []string{"c", "d"},
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imageArgs: []string{"e", "f"},
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expected: []string{"a", "b"},
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},
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{
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desc: "should use cri entrypoint and args if they are specified",
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criEntrypoint: []string{"a", "b"},
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criArgs: []string{"c", "d"},
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imageEntrypoint: []string{"e", "f"},
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imageArgs: []string{"g", "h"},
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expected: []string{"a", "b", "c", "d"},
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},
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{
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desc: "should use image entrypoint if cri entrypoint is not specified",
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criArgs: []string{"a", "b"},
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imageEntrypoint: []string{"c", "d"},
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imageArgs: []string{"e", "f"},
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expected: []string{"c", "d", "a", "b"},
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},
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{
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desc: "should use image args if both cri entrypoint and args are not specified",
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imageEntrypoint: []string{"c", "d"},
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imageArgs: []string{"e", "f"},
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expected: []string{"c", "d", "e", "f"},
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},
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{
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desc: "should return error if both entrypoint and args are empty",
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expectErr: true,
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},
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} {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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config, _, imageConfig, _ := getCreateContainerTestData()
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config.Command = test.criEntrypoint
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config.Args = test.criArgs
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imageConfig.Entrypoint = test.imageEntrypoint
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imageConfig.Cmd = test.imageArgs
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var spec runtimespec.Spec
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err := opts.WithProcessArgs(config, imageConfig)(context.Background(), nil, nil, &spec)
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if test.expectErr {
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assert.Error(t, err)
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return
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}
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assert.NoError(t, err)
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assert.Equal(t, test.expected, spec.Process.Args, test.desc)
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})
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}
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}
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func TestVolumeMounts(t *testing.T) {
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testContainerRootDir := "test-container-root"
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for _, test := range []struct {
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desc string
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platform platforms.Platform
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criMounts []*runtime.Mount
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imageVolumes map[string]struct{}
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expectedMountDest []string
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}{
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{
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desc: "should setup rw mount for image volumes",
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imageVolumes: map[string]struct{}{
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"/test-volume-1": {},
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"/test-volume-2": {},
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},
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expectedMountDest: []string{
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"/test-volume-1",
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"/test-volume-2",
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},
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},
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{
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desc: "should skip image volumes if already mounted by CRI",
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criMounts: []*runtime.Mount{
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{
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ContainerPath: "/test-volume-1",
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HostPath: "/test-hostpath-1",
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},
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},
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imageVolumes: map[string]struct{}{
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"/test-volume-1": {},
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"/test-volume-2": {},
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},
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expectedMountDest: []string{
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"/test-volume-2",
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},
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},
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{
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desc: "should compare and return cleanpath",
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criMounts: []*runtime.Mount{
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{
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ContainerPath: "/test-volume-1",
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HostPath: "/test-hostpath-1",
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},
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},
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imageVolumes: map[string]struct{}{
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"/test-volume-1/": {},
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"/test-volume-2/": {},
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},
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expectedMountDest: []string{
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"/test-volume-2/",
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},
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},
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{
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desc: "should make relative paths absolute on Linux",
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platform: platforms.Platform{OS: "linux"},
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imageVolumes: map[string]struct{}{
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"./test-volume-1": {},
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"C:/test-volume-2": {},
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"../../test-volume-3": {},
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"/abs/test-volume-4": {},
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},
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expectedMountDest: []string{
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"/test-volume-1",
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"/C:/test-volume-2",
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"/test-volume-3",
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"/abs/test-volume-4",
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},
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},
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} {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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config := &imagespec.ImageConfig{
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Volumes: test.imageVolumes,
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}
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c := newTestCRIService()
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got := c.volumeMounts(test.platform, testContainerRootDir, test.criMounts, config)
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assert.Len(t, got, len(test.expectedMountDest))
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for _, dest := range test.expectedMountDest {
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found := false
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for _, m := range got {
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if m.ContainerPath == dest {
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found = true
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assert.Equal(t,
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filepath.Dir(m.HostPath),
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filepath.Join(testContainerRootDir, "volumes"))
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break
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}
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}
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assert.True(t, found)
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}
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})
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}
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}
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func TestContainerAnnotationPassthroughContainerSpec(t *testing.T) {
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switch goruntime.GOOS {
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case "darwin":
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t.Skip("not implemented on Darwin")
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case "freebsd":
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t.Skip("not implemented on FreeBSD")
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}
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testID := "test-id"
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testSandboxID := "sandbox-id"
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testContainerName := "container-name"
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testPid := uint32(1234)
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for _, test := range []struct {
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desc string
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podAnnotations []string
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containerAnnotations []string
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podConfigChange func(*runtime.PodSandboxConfig)
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configChange func(*runtime.ContainerConfig)
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specCheck func(*testing.T, *runtimespec.Spec)
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}{
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{
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desc: "passthrough annotations from pod and container should be passed as an OCI annotation",
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podConfigChange: func(p *runtime.PodSandboxConfig) {
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p.Annotations["pod.annotation.1"] = "1"
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p.Annotations["pod.annotation.2"] = "2"
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p.Annotations["pod.annotation.3"] = "3"
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},
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configChange: func(c *runtime.ContainerConfig) {
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c.Annotations["container.annotation.1"] = "1"
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c.Annotations["container.annotation.2"] = "2"
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c.Annotations["container.annotation.3"] = "3"
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},
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podAnnotations: []string{"pod.annotation.1"},
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containerAnnotations: []string{"container.annotation.1"},
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specCheck: func(t *testing.T, spec *runtimespec.Spec) {
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assert.Equal(t, "1", spec.Annotations["container.annotation.1"])
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_, ok := spec.Annotations["container.annotation.2"]
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assert.False(t, ok)
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_, ok = spec.Annotations["container.annotation.3"]
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assert.False(t, ok)
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assert.Equal(t, "1", spec.Annotations["pod.annotation.1"])
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_, ok = spec.Annotations["pod.annotation.2"]
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assert.False(t, ok)
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_, ok = spec.Annotations["pod.annotation.3"]
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assert.False(t, ok)
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},
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},
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{
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desc: "passthrough annotations from pod and container should support wildcard",
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podConfigChange: func(p *runtime.PodSandboxConfig) {
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p.Annotations["pod.annotation.1"] = "1"
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p.Annotations["pod.annotation.2"] = "2"
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p.Annotations["pod.annotation.3"] = "3"
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},
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configChange: func(c *runtime.ContainerConfig) {
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c.Annotations["container.annotation.1"] = "1"
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c.Annotations["container.annotation.2"] = "2"
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c.Annotations["container.annotation.3"] = "3"
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},
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podAnnotations: []string{"pod.annotation.*"},
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containerAnnotations: []string{"container.annotation.*"},
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specCheck: func(t *testing.T, spec *runtimespec.Spec) {
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assert.Equal(t, "1", spec.Annotations["container.annotation.1"])
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assert.Equal(t, "2", spec.Annotations["container.annotation.2"])
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assert.Equal(t, "3", spec.Annotations["container.annotation.3"])
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assert.Equal(t, "1", spec.Annotations["pod.annotation.1"])
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assert.Equal(t, "2", spec.Annotations["pod.annotation.2"])
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assert.Equal(t, "3", spec.Annotations["pod.annotation.3"])
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},
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},
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{
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desc: "annotations should not pass through if no passthrough annotations are configured",
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podConfigChange: func(p *runtime.PodSandboxConfig) {
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p.Annotations["pod.annotation.1"] = "1"
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p.Annotations["pod.annotation.2"] = "2"
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p.Annotations["pod.annotation.3"] = "3"
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},
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configChange: func(c *runtime.ContainerConfig) {
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c.Annotations["container.annotation.1"] = "1"
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c.Annotations["container.annotation.2"] = "2"
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c.Annotations["container.annotation.3"] = "3"
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},
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podAnnotations: []string{},
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containerAnnotations: []string{},
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specCheck: func(t *testing.T, spec *runtimespec.Spec) {
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_, ok := spec.Annotations["container.annotation.1"]
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assert.False(t, ok)
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_, ok = spec.Annotations["container.annotation.2"]
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assert.False(t, ok)
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_, ok = spec.Annotations["container.annotation.3"]
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assert.False(t, ok)
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_, ok = spec.Annotations["pod.annotation.1"]
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assert.False(t, ok)
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_, ok = spec.Annotations["pod.annotation.2"]
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assert.False(t, ok)
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_, ok = spec.Annotations["pod.annotation.3"]
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assert.False(t, ok)
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},
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},
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} {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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c := newTestCRIService()
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containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
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if test.configChange != nil {
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test.configChange(containerConfig)
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}
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if test.podConfigChange != nil {
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test.podConfigChange(sandboxConfig)
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}
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ociRuntime := config.Runtime{
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PodAnnotations: test.podAnnotations,
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ContainerAnnotations: test.containerAnnotations,
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}
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spec, err := c.buildContainerSpec(currentPlatform, testID, testSandboxID, testPid, "", testContainerName, testImageName,
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containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
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assert.NoError(t, err)
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assert.NotNil(t, spec)
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specCheck(t, testID, testSandboxID, testPid, spec)
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if test.specCheck != nil {
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test.specCheck(t, spec)
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}
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})
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}
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}
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|
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func TestBaseRuntimeSpec(t *testing.T) {
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|
c := newTestCRIService()
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c.baseOCISpecs = map[string]*oci.Spec{
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"/etc/containerd/cri-base.json": {
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Version: "1.0.2",
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Hostname: "old",
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},
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}
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out, err := c.runtimeSpec(
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"id1",
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platforms.DefaultSpec(),
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"/etc/containerd/cri-base.json",
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oci.WithHostname("new-host"),
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oci.WithDomainname("new-domain"),
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)
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assert.NoError(t, err)
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assert.Equal(t, "1.0.2", out.Version)
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assert.Equal(t, "new-host", out.Hostname)
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assert.Equal(t, "new-domain", out.Domainname)
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// Make sure original base spec not changed
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assert.NotEqual(t, out, c.baseOCISpecs["/etc/containerd/cri-base.json"])
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assert.Equal(t, c.baseOCISpecs["/etc/containerd/cri-base.json"].Hostname, "old")
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assert.Equal(t, filepath.Join("/", constants.K8sContainerdNamespace, "id1"), out.Linux.CgroupsPath)
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}
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|
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func TestLinuxContainerMounts(t *testing.T) {
|
|
const testSandboxID = "test-id"
|
|
for _, test := range []struct {
|
|
desc string
|
|
statFn func(string) (os.FileInfo, error)
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|
criMounts []*runtime.Mount
|
|
securityContext *runtime.LinuxContainerSecurityContext
|
|
expectedMounts []*runtime.Mount
|
|
}{
|
|
{
|
|
desc: "should setup ro mount when rootfs is read-only",
|
|
securityContext: &runtime.LinuxContainerSecurityContext{
|
|
ReadonlyRootfs: true,
|
|
},
|
|
expectedMounts: []*runtime.Mount{
|
|
{
|
|
ContainerPath: "/etc/hostname",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hostname"),
|
|
Readonly: true,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/etc/hosts",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hosts"),
|
|
Readonly: true,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: resolvConfPath,
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "resolv.conf"),
|
|
Readonly: true,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/dev/shm",
|
|
HostPath: filepath.Join(testStateDir, sandboxesDir, testSandboxID, "shm"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
desc: "should setup rw mount when rootfs is read-write",
|
|
securityContext: &runtime.LinuxContainerSecurityContext{},
|
|
expectedMounts: []*runtime.Mount{
|
|
{
|
|
ContainerPath: "/etc/hostname",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hostname"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/etc/hosts",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hosts"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: resolvConfPath,
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "resolv.conf"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/dev/shm",
|
|
HostPath: filepath.Join(testStateDir, sandboxesDir, testSandboxID, "shm"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
desc: "should use host /dev/shm when host ipc is set",
|
|
securityContext: &runtime.LinuxContainerSecurityContext{
|
|
NamespaceOptions: &runtime.NamespaceOption{Ipc: runtime.NamespaceMode_NODE},
|
|
},
|
|
expectedMounts: []*runtime.Mount{
|
|
{
|
|
ContainerPath: "/etc/hostname",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hostname"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/etc/hosts",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hosts"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: resolvConfPath,
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "resolv.conf"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/dev/shm",
|
|
HostPath: "/dev/shm",
|
|
Readonly: false,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
desc: "should skip container mounts if already mounted by CRI",
|
|
criMounts: []*runtime.Mount{
|
|
{
|
|
ContainerPath: "/etc/hostname",
|
|
HostPath: "/test-etc-hostname",
|
|
},
|
|
{
|
|
ContainerPath: "/etc/hosts",
|
|
HostPath: "/test-etc-host",
|
|
},
|
|
{
|
|
ContainerPath: resolvConfPath,
|
|
HostPath: "test-resolv-conf",
|
|
},
|
|
{
|
|
ContainerPath: "/dev/shm",
|
|
HostPath: "test-dev-shm",
|
|
},
|
|
},
|
|
securityContext: &runtime.LinuxContainerSecurityContext{},
|
|
expectedMounts: nil,
|
|
},
|
|
{
|
|
desc: "should skip hostname mount if the old sandbox doesn't have hostname file",
|
|
statFn: func(path string) (os.FileInfo, error) {
|
|
assert.Equal(t, filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hostname"), path)
|
|
return nil, errors.New("random error")
|
|
},
|
|
securityContext: &runtime.LinuxContainerSecurityContext{},
|
|
expectedMounts: []*runtime.Mount{
|
|
{
|
|
ContainerPath: "/etc/hosts",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hosts"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: resolvConfPath,
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "resolv.conf"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/dev/shm",
|
|
HostPath: filepath.Join(testStateDir, sandboxesDir, testSandboxID, "shm"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
},
|
|
},
|
|
} {
|
|
test := test
|
|
t.Run(test.desc, func(t *testing.T) {
|
|
config := &runtime.ContainerConfig{
|
|
Metadata: &runtime.ContainerMetadata{
|
|
Name: "test-name",
|
|
Attempt: 1,
|
|
},
|
|
Mounts: test.criMounts,
|
|
Linux: &runtime.LinuxContainerConfig{
|
|
SecurityContext: test.securityContext,
|
|
},
|
|
}
|
|
c := newTestCRIService()
|
|
c.os.(*ostesting.FakeOS).StatFn = test.statFn
|
|
mounts := c.linuxContainerMounts(testSandboxID, config)
|
|
assert.Equal(t, test.expectedMounts, mounts, test.desc)
|
|
})
|
|
}
|
|
}
|