627 lines
18 KiB
Go
627 lines
18 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 server
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import (
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"context"
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"os"
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goruntime "runtime"
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"strings"
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"testing"
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"time"
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"github.com/containerd/containerd/containers"
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"github.com/containerd/containerd/errdefs"
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"github.com/containerd/containerd/oci"
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criconfig "github.com/containerd/containerd/pkg/cri/config"
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containerstore "github.com/containerd/containerd/pkg/cri/store/container"
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imagestore "github.com/containerd/containerd/pkg/cri/store/image"
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"github.com/containerd/containerd/plugin"
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"github.com/containerd/containerd/protobuf/types"
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"github.com/containerd/containerd/reference/docker"
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runcoptions "github.com/containerd/containerd/runtime/v2/runc/options"
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"github.com/containerd/typeurl/v2"
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imagedigest "github.com/opencontainers/go-digest"
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runtimespec "github.com/opencontainers/runtime-spec/specs-go"
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"github.com/pelletier/go-toml"
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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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)
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// TestGetUserFromImage tests the logic of getting image uid or user name of image user.
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func TestGetUserFromImage(t *testing.T) {
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newI64 := func(i int64) *int64 { return &i }
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for c, test := range map[string]struct {
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user string
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uid *int64
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name string
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}{
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"no gid": {
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user: "0",
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uid: newI64(0),
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},
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"uid/gid": {
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user: "0:1",
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uid: newI64(0),
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},
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"empty user": {
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user: "",
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},
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"multiple separators": {
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user: "1:2:3",
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uid: newI64(1),
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},
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"root username": {
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user: "root:root",
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name: "root",
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},
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"username": {
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user: "test:test",
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name: "test",
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},
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} {
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t.Run(c, func(t *testing.T) {
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actualUID, actualName := getUserFromImage(test.user)
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assert.Equal(t, test.uid, actualUID)
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assert.Equal(t, test.name, actualName)
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})
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}
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}
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func TestGetRepoDigestAndTag(t *testing.T) {
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digest := imagedigest.Digest("sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59582")
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for desc, test := range map[string]struct {
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ref string
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schema1 bool
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expectedRepoDigest string
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expectedRepoTag string
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}{
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"repo tag should be empty if original ref has no tag": {
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ref: "gcr.io/library/busybox@" + digest.String(),
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expectedRepoDigest: "gcr.io/library/busybox@" + digest.String(),
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},
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"repo tag should not be empty if original ref has tag": {
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ref: "gcr.io/library/busybox:latest",
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expectedRepoDigest: "gcr.io/library/busybox@" + digest.String(),
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expectedRepoTag: "gcr.io/library/busybox:latest",
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},
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"repo digest should be empty if original ref is schema1 and has no digest": {
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ref: "gcr.io/library/busybox:latest",
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schema1: true,
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expectedRepoDigest: "",
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expectedRepoTag: "gcr.io/library/busybox:latest",
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},
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"repo digest should not be empty if original ref is schema1 but has digest": {
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ref: "gcr.io/library/busybox@sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59594",
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schema1: true,
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expectedRepoDigest: "gcr.io/library/busybox@sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59594",
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expectedRepoTag: "",
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},
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} {
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t.Run(desc, func(t *testing.T) {
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named, err := docker.ParseDockerRef(test.ref)
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assert.NoError(t, err)
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repoDigest, repoTag := getRepoDigestAndTag(named, digest, test.schema1)
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assert.Equal(t, test.expectedRepoDigest, repoDigest)
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assert.Equal(t, test.expectedRepoTag, repoTag)
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})
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}
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}
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func TestBuildLabels(t *testing.T) {
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imageConfigLabels := map[string]string{
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"a": "z",
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"d": "y",
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"long-label": strings.Repeat("example", 10000),
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}
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configLabels := map[string]string{
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"a": "b",
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"c": "d",
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}
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newLabels := buildLabels(configLabels, imageConfigLabels, containerKindSandbox)
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assert.Len(t, newLabels, 4)
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assert.Equal(t, "b", newLabels["a"])
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assert.Equal(t, "d", newLabels["c"])
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assert.Equal(t, "y", newLabels["d"])
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assert.Equal(t, containerKindSandbox, newLabels[containerKindLabel])
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assert.NotContains(t, newLabels, "long-label")
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newLabels["a"] = "e"
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assert.Empty(t, configLabels[containerKindLabel], "should not add new labels into original label")
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assert.Equal(t, "b", configLabels["a"], "change in new labels should not affect original label")
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}
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func TestParseImageReferences(t *testing.T) {
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refs := []string{
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"gcr.io/library/busybox@sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59582",
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"gcr.io/library/busybox:1.2",
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"sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59582",
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"arbitrary-ref",
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}
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expectedTags := []string{
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"gcr.io/library/busybox:1.2",
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}
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expectedDigests := []string{"gcr.io/library/busybox@sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59582"}
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tags, digests := parseImageReferences(refs)
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assert.Equal(t, expectedTags, tags)
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assert.Equal(t, expectedDigests, digests)
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}
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func TestLocalResolve(t *testing.T) {
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image := imagestore.Image{
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ID: "sha256:c75bebcdd211f41b3a460c7bf82970ed6c75acaab9cd4c9a4e125b03ca113799",
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ChainID: "test-chain-id-1",
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References: []string{
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"docker.io/library/busybox:latest",
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"docker.io/library/busybox@sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59582",
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},
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Size: 10,
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}
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c := newTestCRIService()
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var err error
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c.imageStore, err = imagestore.NewFakeStore([]imagestore.Image{image})
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assert.NoError(t, err)
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for _, ref := range []string{
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"sha256:c75bebcdd211f41b3a460c7bf82970ed6c75acaab9cd4c9a4e125b03ca113799",
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"busybox",
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"busybox:latest",
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"busybox@sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59582",
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"library/busybox",
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"library/busybox:latest",
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"library/busybox@sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59582",
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"docker.io/busybox",
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"docker.io/busybox:latest",
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"docker.io/busybox@sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59582",
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"docker.io/library/busybox",
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"docker.io/library/busybox:latest",
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"docker.io/library/busybox@sha256:e6693c20186f837fc393390135d8a598a96a833917917789d63766cab6c59582",
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} {
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img, err := c.localResolve(ref)
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assert.NoError(t, err)
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assert.Equal(t, image, img)
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}
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img, err := c.localResolve("randomid")
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assert.Equal(t, errdefs.IsNotFound(err), true)
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assert.Equal(t, imagestore.Image{}, img)
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}
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func TestGenerateRuntimeOptions(t *testing.T) {
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nilOpts := `
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[containerd]
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no_pivot = true
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default_runtime_name = "default"
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[containerd.runtimes.runcv2]
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runtime_type = "` + plugin.RuntimeRuncV2 + `"
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`
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nonNilOpts := `
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[containerd]
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no_pivot = true
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default_runtime_name = "default"
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[containerd.runtimes.legacy.options]
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Runtime = "legacy"
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RuntimeRoot = "/legacy"
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[containerd.runtimes.runc.options]
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BinaryName = "runc"
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Root = "/runc"
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NoNewKeyring = true
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[containerd.runtimes.runcv2]
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runtime_type = "` + plugin.RuntimeRuncV2 + `"
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[containerd.runtimes.runcv2.options]
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BinaryName = "runc"
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Root = "/runcv2"
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NoNewKeyring = true
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`
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var nilOptsConfig, nonNilOptsConfig criconfig.Config
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tree, err := toml.Load(nilOpts)
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require.NoError(t, err)
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err = tree.Unmarshal(&nilOptsConfig)
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require.NoError(t, err)
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require.Len(t, nilOptsConfig.Runtimes, 1)
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tree, err = toml.Load(nonNilOpts)
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require.NoError(t, err)
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err = tree.Unmarshal(&nonNilOptsConfig)
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require.NoError(t, err)
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require.Len(t, nonNilOptsConfig.Runtimes, 3)
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for desc, test := range map[string]struct {
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r criconfig.Runtime
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c criconfig.Config
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expectedOptions interface{}
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}{
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"when options is nil, should return nil option for io.containerd.runc.v2": {
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r: nilOptsConfig.Runtimes["runcv2"],
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c: nilOptsConfig,
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expectedOptions: nil,
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},
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"when options is not nil, should be able to decode for io.containerd.runc.v2": {
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r: nonNilOptsConfig.Runtimes["runcv2"],
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c: nonNilOptsConfig,
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expectedOptions: &runcoptions.Options{
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BinaryName: "runc",
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Root: "/runcv2",
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NoNewKeyring: true,
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},
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},
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} {
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t.Run(desc, func(t *testing.T) {
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opts, err := generateRuntimeOptions(test.r, test.c)
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assert.NoError(t, err)
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assert.Equal(t, test.expectedOptions, opts)
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})
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}
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}
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func TestEnvDeduplication(t *testing.T) {
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for desc, test := range map[string]struct {
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existing []string
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kv [][2]string
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expected []string
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}{
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"single env": {
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kv: [][2]string{
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{"a", "b"},
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},
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expected: []string{"a=b"},
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},
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"multiple envs": {
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kv: [][2]string{
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{"a", "b"},
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{"c", "d"},
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{"e", "f"},
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},
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expected: []string{
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"a=b",
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"c=d",
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"e=f",
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},
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},
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"env override": {
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kv: [][2]string{
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{"k1", "v1"},
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{"k2", "v2"},
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{"k3", "v3"},
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{"k3", "v4"},
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{"k1", "v5"},
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{"k4", "v6"},
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},
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expected: []string{
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"k1=v5",
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"k2=v2",
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"k3=v4",
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"k4=v6",
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},
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},
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"existing env": {
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existing: []string{
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"k1=v1",
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"k2=v2",
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"k3=v3",
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},
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kv: [][2]string{
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{"k3", "v4"},
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{"k2", "v5"},
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{"k4", "v6"},
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},
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expected: []string{
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"k1=v1",
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"k2=v5",
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"k3=v4",
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"k4=v6",
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},
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},
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} {
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t.Run(desc, func(t *testing.T) {
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var spec runtimespec.Spec
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if len(test.existing) > 0 {
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spec.Process = &runtimespec.Process{
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Env: test.existing,
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}
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}
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for _, kv := range test.kv {
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oci.WithEnv([]string{kv[0] + "=" + kv[1]})(context.Background(), nil, nil, &spec)
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}
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assert.Equal(t, test.expected, spec.Process.Env)
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})
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}
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}
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func TestPassThroughAnnotationsFilter(t *testing.T) {
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for desc, test := range map[string]struct {
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podAnnotations map[string]string
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runtimePodAnnotations []string
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passthroughAnnotations map[string]string
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}{
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"should support direct match": {
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podAnnotations: map[string]string{"c": "d", "d": "e"},
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runtimePodAnnotations: []string{"c"},
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passthroughAnnotations: map[string]string{"c": "d"},
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},
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"should support wildcard match": {
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podAnnotations: map[string]string{
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"t.f": "j",
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"z.g": "o",
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"z": "o",
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"y.ca": "b",
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"y": "b",
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},
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runtimePodAnnotations: []string{"*.f", "z*g", "y.c*"},
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passthroughAnnotations: map[string]string{
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"t.f": "j",
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"z.g": "o",
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"y.ca": "b",
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},
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},
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"should support wildcard match all": {
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podAnnotations: map[string]string{
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"t.f": "j",
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"z.g": "o",
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"z": "o",
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"y.ca": "b",
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"y": "b",
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},
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runtimePodAnnotations: []string{"*"},
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passthroughAnnotations: map[string]string{
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"t.f": "j",
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"z.g": "o",
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"z": "o",
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"y.ca": "b",
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"y": "b",
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},
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},
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"should support match including path separator": {
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podAnnotations: map[string]string{
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"matchend.com/end": "1",
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"matchend.com/end1": "2",
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"matchend.com/1end": "3",
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"matchmid.com/mid": "4",
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"matchmid.com/mi1d": "5",
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"matchmid.com/mid1": "6",
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"matchhead.com/head": "7",
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"matchhead.com/1head": "8",
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"matchhead.com/head1": "9",
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"matchall.com/abc": "10",
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"matchall.com/def": "11",
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"end/matchend": "12",
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"end1/matchend": "13",
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"1end/matchend": "14",
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"mid/matchmid": "15",
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"mi1d/matchmid": "16",
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"mid1/matchmid": "17",
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"head/matchhead": "18",
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"1head/matchhead": "19",
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"head1/matchhead": "20",
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"abc/matchall": "21",
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"def/matchall": "22",
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"match1/match2": "23",
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"nomatch/nomatch": "24",
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},
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runtimePodAnnotations: []string{
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"matchend.com/end*",
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"matchmid.com/mi*d",
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"matchhead.com/*head",
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"matchall.com/*",
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"end*/matchend",
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"mi*d/matchmid",
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"*head/matchhead",
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"*/matchall",
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"match*/match*",
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},
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passthroughAnnotations: map[string]string{
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"matchend.com/end": "1",
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"matchend.com/end1": "2",
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"matchmid.com/mid": "4",
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"matchmid.com/mi1d": "5",
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"matchhead.com/head": "7",
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"matchhead.com/1head": "8",
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"matchall.com/abc": "10",
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"matchall.com/def": "11",
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"end/matchend": "12",
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"end1/matchend": "13",
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"mid/matchmid": "15",
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"mi1d/matchmid": "16",
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"head/matchhead": "18",
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"1head/matchhead": "19",
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"abc/matchall": "21",
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"def/matchall": "22",
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"match1/match2": "23",
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},
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},
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} {
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t.Run(desc, func(t *testing.T) {
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passthroughAnnotations := getPassthroughAnnotations(test.podAnnotations, test.runtimePodAnnotations)
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assert.Equal(t, test.passthroughAnnotations, passthroughAnnotations)
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})
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}
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}
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func TestEnsureRemoveAllNotExist(t *testing.T) {
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// should never return an error for a non-existent path
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if err := ensureRemoveAll(context.Background(), "/non/existent/path"); err != nil {
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t.Fatal(err)
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}
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}
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func TestEnsureRemoveAllWithDir(t *testing.T) {
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dir := t.TempDir()
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if err := ensureRemoveAll(context.Background(), dir); err != nil {
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t.Fatal(err)
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}
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}
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func TestEnsureRemoveAllWithFile(t *testing.T) {
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tmp, err := os.CreateTemp("", "test-ensure-removeall-with-dir")
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if err != nil {
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t.Fatal(err)
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}
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|
tmp.Close()
|
|
if err := ensureRemoveAll(context.Background(), tmp.Name()); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// Helper function for setting up an environment to test PID namespace targeting.
|
|
func addContainer(c *criService, containerID, sandboxID string, PID uint32, createdAt, startedAt, finishedAt int64) error {
|
|
meta := containerstore.Metadata{
|
|
ID: containerID,
|
|
SandboxID: sandboxID,
|
|
}
|
|
status := containerstore.Status{
|
|
Pid: PID,
|
|
CreatedAt: createdAt,
|
|
StartedAt: startedAt,
|
|
FinishedAt: finishedAt,
|
|
}
|
|
container, err := containerstore.NewContainer(meta,
|
|
containerstore.WithFakeStatus(status),
|
|
)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return c.containerStore.Add(container)
|
|
}
|
|
|
|
func TestValidateTargetContainer(t *testing.T) {
|
|
testSandboxID := "test-sandbox-uid"
|
|
|
|
// The existing container that will be targeted.
|
|
testTargetContainerID := "test-target-container"
|
|
testTargetContainerPID := uint32(4567)
|
|
|
|
// A container that has finished running and cannot be targeted.
|
|
testStoppedContainerID := "stopped-target-container"
|
|
testStoppedContainerPID := uint32(6789)
|
|
|
|
// A container from another pod.
|
|
testOtherContainerSandboxID := "other-sandbox-uid"
|
|
testOtherContainerID := "other-target-container"
|
|
testOtherContainerPID := uint32(7890)
|
|
|
|
// Container create/start/stop times.
|
|
createdAt := time.Now().Add(-15 * time.Second).UnixNano()
|
|
startedAt := time.Now().Add(-10 * time.Second).UnixNano()
|
|
finishedAt := time.Now().Add(-5 * time.Second).UnixNano()
|
|
|
|
c := newTestCRIService()
|
|
|
|
// Create a target container.
|
|
err := addContainer(c, testTargetContainerID, testSandboxID, testTargetContainerPID, createdAt, startedAt, 0)
|
|
require.NoError(t, err, "error creating test target container")
|
|
|
|
// Create a stopped container.
|
|
err = addContainer(c, testStoppedContainerID, testSandboxID, testStoppedContainerPID, createdAt, startedAt, finishedAt)
|
|
require.NoError(t, err, "error creating test stopped container")
|
|
|
|
// Create a container in another pod.
|
|
err = addContainer(c, testOtherContainerID, testOtherContainerSandboxID, testOtherContainerPID, createdAt, startedAt, 0)
|
|
require.NoError(t, err, "error creating test container in other pod")
|
|
|
|
for desc, test := range map[string]struct {
|
|
targetContainerID string
|
|
expectError bool
|
|
}{
|
|
"target container in pod": {
|
|
targetContainerID: testTargetContainerID,
|
|
expectError: false,
|
|
},
|
|
"target stopped container in pod": {
|
|
targetContainerID: testStoppedContainerID,
|
|
expectError: true,
|
|
},
|
|
"target container does not exist": {
|
|
targetContainerID: "no-container-with-this-id",
|
|
expectError: true,
|
|
},
|
|
"target container in other pod": {
|
|
targetContainerID: testOtherContainerID,
|
|
expectError: true,
|
|
},
|
|
} {
|
|
t.Run(desc, func(t *testing.T) {
|
|
targetContainer, err := c.validateTargetContainer(testSandboxID, test.targetContainerID)
|
|
if test.expectError {
|
|
require.Error(t, err, "target should have been invalid but no error")
|
|
return
|
|
}
|
|
require.NoErrorf(t, err, "target should have been valid but got error")
|
|
|
|
assert.Equal(t, test.targetContainerID, targetContainer.ID, "returned target container does not have expected ID")
|
|
})
|
|
}
|
|
|
|
}
|
|
|
|
func TestGetRuntimeOptions(t *testing.T) {
|
|
_, err := getRuntimeOptions(containers.Container{})
|
|
require.NoError(t, err)
|
|
|
|
var pbany *types.Any // This is nil.
|
|
var typeurlAny typeurl.Any = pbany // This is typed nil.
|
|
_, err = getRuntimeOptions(containers.Container{Runtime: containers.RuntimeInfo{Options: typeurlAny}})
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func TestHostNetwork(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
c *runtime.PodSandboxConfig
|
|
expected bool
|
|
}{
|
|
{
|
|
name: "when pod namespace return false",
|
|
c: &runtime.PodSandboxConfig{
|
|
Linux: &runtime.LinuxPodSandboxConfig{
|
|
SecurityContext: &runtime.LinuxSandboxSecurityContext{
|
|
NamespaceOptions: &runtime.NamespaceOption{
|
|
Network: runtime.NamespaceMode_POD,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
expected: false,
|
|
},
|
|
{
|
|
name: "when node namespace return true",
|
|
c: &runtime.PodSandboxConfig{
|
|
Linux: &runtime.LinuxPodSandboxConfig{
|
|
SecurityContext: &runtime.LinuxSandboxSecurityContext{
|
|
NamespaceOptions: &runtime.NamespaceOption{
|
|
Network: runtime.NamespaceMode_NODE,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
expected: true,
|
|
},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
if goruntime.GOOS != "linux" {
|
|
t.Skip()
|
|
}
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
if hostNetwork(tt.c) != tt.expected {
|
|
t.Errorf("failed hostNetwork got %t expected %t", hostNetwork(tt.c), tt.expected)
|
|
}
|
|
})
|
|
}
|
|
}
|