forked from argoproj/argo-cd
/
repository_test.go
2079 lines (1807 loc) · 73.8 KB
/
repository_test.go
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package repository
import (
"context"
"encoding/json"
"errors"
"fmt"
goio "io"
"io/ioutil"
"os"
"os/exec"
"path"
"path/filepath"
"regexp"
"strings"
"testing"
"time"
log "github.com/sirupsen/logrus"
"github.com/ghodss/yaml"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
v1 "k8s.io/api/apps/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
argoappv1 "github.com/argoproj/argo-cd/v2/pkg/apis/application/v1alpha1"
"github.com/argoproj/argo-cd/v2/reposerver/apiclient"
"github.com/argoproj/argo-cd/v2/reposerver/cache"
"github.com/argoproj/argo-cd/v2/reposerver/metrics"
fileutil "github.com/argoproj/argo-cd/v2/test/fixture/path"
"github.com/argoproj/argo-cd/v2/util/argo"
cacheutil "github.com/argoproj/argo-cd/v2/util/cache"
"github.com/argoproj/argo-cd/v2/util/git"
gitmocks "github.com/argoproj/argo-cd/v2/util/git/mocks"
"github.com/argoproj/argo-cd/v2/util/helm"
helmmocks "github.com/argoproj/argo-cd/v2/util/helm/mocks"
"github.com/argoproj/argo-cd/v2/util/io"
)
const testSignature = `gpg: Signature made Wed Feb 26 23:22:34 2020 CET
gpg: using RSA key 4AEE18F83AFDEB23
gpg: Good signature from "GitHub (web-flow commit signing) <noreply@github.com>" [ultimate]
`
type clientFunc func(*gitmocks.Client)
func newServiceWithMocks(root string, signed bool) (*Service, *gitmocks.Client) {
root, err := filepath.Abs(root)
if err != nil {
panic(err)
}
return newServiceWithOpt(func(gitClient *gitmocks.Client) {
gitClient.On("Init").Return(nil)
gitClient.On("Fetch", mock.Anything).Return(nil)
gitClient.On("Checkout", mock.Anything, mock.Anything).Return(nil)
gitClient.On("LsRemote", mock.Anything).Return(mock.Anything, nil)
gitClient.On("CommitSHA").Return(mock.Anything, nil)
gitClient.On("Root").Return(root)
if signed {
gitClient.On("VerifyCommitSignature", mock.Anything).Return(testSignature, nil)
} else {
gitClient.On("VerifyCommitSignature", mock.Anything).Return("", nil)
}
})
}
func newServiceWithOpt(cf clientFunc) (*Service, *gitmocks.Client) {
helmClient := &helmmocks.Client{}
gitClient := &gitmocks.Client{}
cf(gitClient)
service := NewService(metrics.NewMetricsServer(), cache.NewCache(
cacheutil.NewCache(cacheutil.NewInMemoryCache(1*time.Minute)),
1*time.Minute,
1*time.Minute,
), RepoServerInitConstants{ParallelismLimit: 1}, argo.NewResourceTracking(), &git.NoopCredsStore{}, os.TempDir())
chart := "my-chart"
version := "1.1.0"
helmClient.On("GetIndex", true).Return(&helm.Index{Entries: map[string]helm.Entries{
chart: {{Version: "1.0.0"}, {Version: version}},
}}, nil)
helmClient.On("ExtractChart", chart, version).Return("./testdata/my-chart", io.NopCloser, nil)
helmClient.On("CleanChartCache", chart, version).Return(nil)
service.newGitClient = func(rawRepoURL string, root string, creds git.Creds, insecure bool, enableLfs bool, prosy string, opts ...git.ClientOpts) (client git.Client, e error) {
return gitClient, nil
}
service.newHelmClient = func(repoURL string, creds helm.Creds, enableOci bool, proxy string, opts ...helm.ClientOpts) helm.Client {
return helmClient
}
service.gitRepoInitializer = func(rootPath string) goio.Closer {
return io.NopCloser
}
return service, gitClient
}
func newService(root string) *Service {
service, _ := newServiceWithMocks(root, false)
return service
}
func newServiceWithSignature(root string) *Service {
service, _ := newServiceWithMocks(root, true)
return service
}
func newServiceWithCommitSHA(root, revision string) *Service {
var revisionErr error
commitSHARegex := regexp.MustCompile("^[0-9A-Fa-f]{40}$")
if !commitSHARegex.MatchString(revision) {
revisionErr = errors.New("not a commit SHA")
}
service, gitClient := newServiceWithOpt(func(gitClient *gitmocks.Client) {
gitClient.On("Init").Return(nil)
gitClient.On("Fetch", mock.Anything).Return(nil)
gitClient.On("Checkout", mock.Anything, mock.Anything).Return(nil)
gitClient.On("LsRemote", revision).Return(revision, revisionErr)
gitClient.On("CommitSHA").Return("632039659e542ed7de0c170a4fcc1c571b288fc0", nil)
gitClient.On("Root").Return(root)
})
service.newGitClient = func(rawRepoURL string, root string, creds git.Creds, insecure bool, enableLfs bool, proxy string, opts ...git.ClientOpts) (client git.Client, e error) {
return gitClient, nil
}
return service
}
func TestGenerateYamlManifestInDir(t *testing.T) {
service := newService("../..")
src := argoappv1.ApplicationSource{Path: "manifests/base"}
q := apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: &src}
// update this value if we add/remove manifests
const countOfManifests = 47
res1, err := service.GenerateManifest(context.Background(), &q)
assert.NoError(t, err)
assert.Equal(t, countOfManifests, len(res1.Manifests))
// this will test concatenated manifests to verify we split YAMLs correctly
res2, err := GenerateManifests(context.Background(), "./testdata/concatenated", "/", "", &q, false, &git.NoopCredsStore{})
assert.NoError(t, err)
assert.Equal(t, 3, len(res2.Manifests))
}
func Test_GenerateManifests_NoOutOfBoundsAccess(t *testing.T) {
testCases := []struct {
name string
outOfBoundsFilename string
outOfBoundsFileContents string
mustNotContain string // Optional string that must not appear in error or manifest output. If empty, use outOfBoundsFileContents.
}{
{
name: "out of bounds JSON file should not appear in error output",
outOfBoundsFilename: "test.json",
outOfBoundsFileContents: `{"some": "json"}`,
},
{
name: "malformed JSON file contents should not appear in error output",
outOfBoundsFilename: "test.json",
outOfBoundsFileContents: "$",
},
{
name: "out of bounds JSON manifest should not appear in manifest output",
outOfBoundsFilename: "test.json",
// JSON marshalling is deterministic. So if there's a leak, exactly this should appear in the manifests.
outOfBoundsFileContents: `{"apiVersion":"v1","kind":"Secret","metadata":{"name":"test","namespace":"default"},"type":"Opaque"}`,
},
{
name: "out of bounds YAML manifest should not appear in manifest output",
outOfBoundsFilename: "test.yaml",
outOfBoundsFileContents: "apiVersion: v1\nkind: Secret\nmetadata:\n name: test\n namespace: default\ntype: Opaque",
mustNotContain: `{"apiVersion":"v1","kind":"Secret","metadata":{"name":"test","namespace":"default"},"type":"Opaque"}`,
},
}
for _, testCase := range testCases {
testCaseCopy := testCase
t.Run(testCaseCopy.name, func(t *testing.T) {
t.Parallel()
outOfBoundsDir := t.TempDir()
outOfBoundsFile := path.Join(outOfBoundsDir, testCaseCopy.outOfBoundsFilename)
err := os.WriteFile(outOfBoundsFile, []byte(testCaseCopy.outOfBoundsFileContents), os.FileMode(0444))
require.NoError(t, err)
repoDir := t.TempDir()
err = os.Symlink(outOfBoundsFile, path.Join(repoDir, testCaseCopy.outOfBoundsFilename))
require.NoError(t, err)
var mustNotContain = testCaseCopy.outOfBoundsFileContents
if testCaseCopy.mustNotContain != "" {
mustNotContain = testCaseCopy.mustNotContain
}
q := apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: &argoappv1.ApplicationSource{}}
res, err := GenerateManifests(context.Background(), repoDir, "", "", &q, false, &git.NoopCredsStore{})
require.Error(t, err)
assert.NotContains(t, err.Error(), mustNotContain)
assert.Contains(t, err.Error(), "illegal filepath")
assert.Nil(t, res)
})
}
}
func TestGenerateManifests_MissingSymlinkDestination(t *testing.T) {
repoDir := t.TempDir()
err := os.Symlink("/obviously/does/not/exist", path.Join(repoDir, "test.yaml"))
require.NoError(t, err)
q := apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: &argoappv1.ApplicationSource{}}
_, err = GenerateManifests(context.Background(), repoDir, "", "", &q, false, &git.NoopCredsStore{})
require.NoError(t, err)
}
func TestGenerateManifests_K8SAPIResetCache(t *testing.T) {
service := newService("../..")
src := argoappv1.ApplicationSource{Path: "manifests/base"}
q := apiclient.ManifestRequest{
KubeVersion: "v1.16.0",
Repo: &argoappv1.Repository{}, ApplicationSource: &src,
}
cachedFakeResponse := &apiclient.ManifestResponse{Manifests: []string{"Fake"}}
err := service.cache.SetManifests(mock.Anything, &src, &q, "", "", "", "", &cache.CachedManifestResponse{ManifestResponse: cachedFakeResponse})
assert.NoError(t, err)
res, err := service.GenerateManifest(context.Background(), &q)
assert.NoError(t, err)
assert.Equal(t, cachedFakeResponse, res)
q.KubeVersion = "v1.17.0"
res, err = service.GenerateManifest(context.Background(), &q)
assert.NoError(t, err)
assert.NotEqual(t, cachedFakeResponse, res)
assert.True(t, len(res.Manifests) > 1)
}
func TestGenerateManifests_EmptyCache(t *testing.T) {
service := newService("../..")
src := argoappv1.ApplicationSource{Path: "manifests/base"}
q := apiclient.ManifestRequest{
Repo: &argoappv1.Repository{}, ApplicationSource: &src,
}
err := service.cache.SetManifests(mock.Anything, &src, &q, "", "", "", "", &cache.CachedManifestResponse{ManifestResponse: nil})
assert.NoError(t, err)
res, err := service.GenerateManifest(context.Background(), &q)
assert.NoError(t, err)
assert.True(t, len(res.Manifests) > 0)
}
// ensure we can use a semver constraint range (>= 1.0.0) and get back the correct chart (1.0.0)
func TestHelmManifestFromChartRepo(t *testing.T) {
service := newService(".")
source := &argoappv1.ApplicationSource{Chart: "my-chart", TargetRevision: ">= 1.0.0"}
request := &apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: source, NoCache: true}
response, err := service.GenerateManifest(context.Background(), request)
assert.NoError(t, err)
assert.NotNil(t, response)
assert.Equal(t, &apiclient.ManifestResponse{
Manifests: []string{"{\"apiVersion\":\"v1\",\"kind\":\"ConfigMap\",\"metadata\":{\"name\":\"my-map\"}}"},
Namespace: "",
Server: "",
Revision: "1.1.0",
SourceType: "Helm",
}, response)
}
func TestGenerateManifestsUseExactRevision(t *testing.T) {
service, gitClient := newServiceWithMocks(".", false)
src := argoappv1.ApplicationSource{Path: "./testdata/recurse", Directory: &argoappv1.ApplicationSourceDirectory{Recurse: true}}
q := apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: &src, Revision: "abc"}
res1, err := service.GenerateManifest(context.Background(), &q)
assert.Nil(t, err)
assert.Equal(t, 2, len(res1.Manifests))
assert.Equal(t, gitClient.Calls[0].Arguments[0], "abc")
}
func TestRecurseManifestsInDir(t *testing.T) {
service := newService(".")
src := argoappv1.ApplicationSource{Path: "./testdata/recurse", Directory: &argoappv1.ApplicationSourceDirectory{Recurse: true}}
q := apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: &src}
res1, err := service.GenerateManifest(context.Background(), &q)
assert.Nil(t, err)
assert.Equal(t, 2, len(res1.Manifests))
}
func TestInvalidManifestsInDir(t *testing.T) {
service := newService(".")
src := argoappv1.ApplicationSource{Path: "./testdata/invalid-manifests", Directory: &argoappv1.ApplicationSourceDirectory{Recurse: true}}
q := apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: &src}
_, err := service.GenerateManifest(context.Background(), &q)
assert.NotNil(t, err)
}
func TestGenerateJsonnetManifestInDir(t *testing.T) {
service := newService(".")
q := apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./testdata/jsonnet",
Directory: &argoappv1.ApplicationSourceDirectory{
Jsonnet: argoappv1.ApplicationSourceJsonnet{
ExtVars: []argoappv1.JsonnetVar{{Name: "extVarString", Value: "extVarString"}, {Name: "extVarCode", Value: "\"extVarCode\"", Code: true}},
TLAs: []argoappv1.JsonnetVar{{Name: "tlaString", Value: "tlaString"}, {Name: "tlaCode", Value: "\"tlaCode\"", Code: true}},
Libs: []string{"testdata/jsonnet/vendor"},
},
},
},
}
res1, err := service.GenerateManifest(context.Background(), &q)
assert.Nil(t, err)
assert.Equal(t, 2, len(res1.Manifests))
}
func TestGenerateJsonnetLibOutside(t *testing.T) {
service := newService(".")
q := apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./testdata/jsonnet",
Directory: &argoappv1.ApplicationSourceDirectory{
Jsonnet: argoappv1.ApplicationSourceJsonnet{
Libs: []string{"../../../testdata/jsonnet/vendor"},
},
},
},
}
_, err := service.GenerateManifest(context.Background(), &q)
require.Error(t, err)
require.Contains(t, err.Error(), "value file '../../../testdata/jsonnet/vendor' resolved to outside repository root")
}
func TestManifestGenErrorCacheByNumRequests(t *testing.T) {
// Returns the state of the manifest generation cache, by querying the cache for the previously set result
getRecentCachedEntry := func(service *Service, manifestRequest *apiclient.ManifestRequest) *cache.CachedManifestResponse {
assert.NotNil(t, service)
assert.NotNil(t, manifestRequest)
cachedManifestResponse := &cache.CachedManifestResponse{}
err := service.cache.GetManifests(mock.Anything, manifestRequest.ApplicationSource, manifestRequest, manifestRequest.Namespace, "", manifestRequest.AppLabelKey, manifestRequest.AppName, cachedManifestResponse)
assert.Nil(t, err)
return cachedManifestResponse
}
// Example:
// With repo server (test) parameters:
// - PauseGenerationAfterFailedGenerationAttempts: 2
// - PauseGenerationOnFailureForRequests: 4
// - TotalCacheInvocations: 10
//
// After 2 manifest generation failures in a row, the next 4 manifest generation requests should be cached,
// with the next 2 after that being uncached. Here's how it looks...
//
// request count) result
// --------------------------
// 1) Attempt to generate manifest, fails.
// 2) Second attempt to generate manifest, fails.
// 3) Return cached error attempt from #2
// 4) Return cached error attempt from #2
// 5) Return cached error attempt from #2
// 6) Return cached error attempt from #2. Max response limit hit, so reset cache entry.
// 7) Attempt to generate manifest, fails.
// 8) Attempt to generate manifest, fails.
// 9) Return cached error attempt from #8
// 10) Return cached error attempt from #8
// The same pattern PauseGenerationAfterFailedGenerationAttempts generation attempts, followed by
// PauseGenerationOnFailureForRequests cached responses, should apply for various combinations of
// both parameters.
tests := []struct {
PauseGenerationAfterFailedGenerationAttempts int
PauseGenerationOnFailureForRequests int
TotalCacheInvocations int
}{
{2, 4, 10},
{3, 5, 10},
{1, 2, 5},
}
for _, tt := range tests {
testName := fmt.Sprintf("gen-attempts-%d-pause-%d-total-%d", tt.PauseGenerationAfterFailedGenerationAttempts, tt.PauseGenerationOnFailureForRequests, tt.TotalCacheInvocations)
t.Run(testName, func(t *testing.T) {
service := newService(".")
service.initConstants = RepoServerInitConstants{
ParallelismLimit: 1,
PauseGenerationAfterFailedGenerationAttempts: tt.PauseGenerationAfterFailedGenerationAttempts,
PauseGenerationOnFailureForMinutes: 0,
PauseGenerationOnFailureForRequests: tt.PauseGenerationOnFailureForRequests,
}
totalAttempts := service.initConstants.PauseGenerationAfterFailedGenerationAttempts + service.initConstants.PauseGenerationOnFailureForRequests
for invocationCount := 0; invocationCount < tt.TotalCacheInvocations; invocationCount++ {
adjustedInvocation := invocationCount % totalAttempts
fmt.Printf("%d )-------------------------------------------\n", invocationCount)
manifestRequest := &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./testdata/invalid-helm",
},
}
res, err := service.GenerateManifest(context.Background(), manifestRequest)
// Verify invariant: res != nil xor err != nil
if err != nil {
assert.True(t, res == nil, "both err and res are non-nil res: %v err: %v", res, err)
} else {
assert.True(t, res != nil, "both err and res are nil")
}
cachedManifestResponse := getRecentCachedEntry(service, manifestRequest)
isCachedError := err != nil && strings.HasPrefix(err.Error(), cachedManifestGenerationPrefix)
if adjustedInvocation < service.initConstants.PauseGenerationAfterFailedGenerationAttempts {
// GenerateManifest should not return cached errors for the first X responses, where X is the FailGenAttempts constants
require.False(t, isCachedError)
require.NotNil(t, cachedManifestResponse)
// nolint:staticcheck
assert.Nil(t, cachedManifestResponse.ManifestResponse)
// nolint:staticcheck
assert.True(t, cachedManifestResponse.FirstFailureTimestamp != 0)
// Internal cache consec failures value should increase with invocations, cached response should stay the same,
// nolint:staticcheck
assert.True(t, cachedManifestResponse.NumberOfConsecutiveFailures == adjustedInvocation+1)
// nolint:staticcheck
assert.True(t, cachedManifestResponse.NumberOfCachedResponsesReturned == 0)
} else {
// GenerateManifest SHOULD return cached errors for the next X responses, where X is the
// PauseGenerationOnFailureForRequests constant
assert.True(t, isCachedError)
require.NotNil(t, cachedManifestResponse)
// nolint:staticcheck
assert.Nil(t, cachedManifestResponse.ManifestResponse)
// nolint:staticcheck
assert.True(t, cachedManifestResponse.FirstFailureTimestamp != 0)
// Internal cache values should update correctly based on number of return cache entries, consecutive failures should stay the same
// nolint:staticcheck
assert.True(t, cachedManifestResponse.NumberOfConsecutiveFailures == service.initConstants.PauseGenerationAfterFailedGenerationAttempts)
// nolint:staticcheck
assert.True(t, cachedManifestResponse.NumberOfCachedResponsesReturned == (adjustedInvocation-service.initConstants.PauseGenerationAfterFailedGenerationAttempts+1))
}
}
})
}
}
func TestManifestGenErrorCacheFileContentsChange(t *testing.T) {
tmpDir := t.TempDir()
service := newService(tmpDir)
service.initConstants = RepoServerInitConstants{
ParallelismLimit: 1,
PauseGenerationAfterFailedGenerationAttempts: 2,
PauseGenerationOnFailureForMinutes: 0,
PauseGenerationOnFailureForRequests: 4,
}
for step := 0; step < 3; step++ {
// step 1) Attempt to generate manifests against invalid helm chart (should return uncached error)
// step 2) Attempt to generate manifest against valid helm chart (should succeed and return valid response)
// step 3) Attempt to generate manifest against invalid helm chart (should return cached value from step 2)
errorExpected := step%2 == 0
// Ensure that the target directory will succeed or fail, so we can verify the cache correctly handles it
err := os.RemoveAll(tmpDir)
assert.NoError(t, err)
err = os.MkdirAll(tmpDir, 0777)
assert.NoError(t, err)
if errorExpected {
// Copy invalid helm chart into temporary directory, ensuring manifest generation will fail
err = fileutil.CopyDir("./testdata/invalid-helm", tmpDir)
assert.NoError(t, err)
} else {
// Copy valid helm chart into temporary directory, ensuring generation will succeed
err = fileutil.CopyDir("./testdata/my-chart", tmpDir)
assert.NoError(t, err)
}
res, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: ".",
},
})
fmt.Println("-", step, "-", res != nil, err != nil, errorExpected)
fmt.Println(" err: ", err)
fmt.Println(" res: ", res)
if step < 2 {
assert.True(t, (err != nil) == errorExpected, "error return value and error expected did not match")
assert.True(t, (res != nil) == !errorExpected, "GenerateManifest return value and expected value did not match")
}
if step == 2 {
assert.NoError(t, err, "error ret val was non-nil on step 3")
assert.NotNil(t, res, "GenerateManifest ret val was nil on step 3")
}
}
}
func TestManifestGenErrorCacheByMinutesElapsed(t *testing.T) {
tests := []struct {
// Test with a range of pause expiration thresholds
PauseGenerationOnFailureForMinutes int
}{
{1}, {2}, {10}, {24 * 60},
}
for _, tt := range tests {
testName := fmt.Sprintf("pause-time-%d", tt.PauseGenerationOnFailureForMinutes)
t.Run(testName, func(t *testing.T) {
service := newService(".")
// Here we simulate the passage of time by overriding the now() function of Service
currentTime := time.Now()
service.now = func() time.Time {
return currentTime
}
service.initConstants = RepoServerInitConstants{
ParallelismLimit: 1,
PauseGenerationAfterFailedGenerationAttempts: 1,
PauseGenerationOnFailureForMinutes: tt.PauseGenerationOnFailureForMinutes,
PauseGenerationOnFailureForRequests: 0,
}
// 1) Put the cache into the failure state
for x := 0; x < 2; x++ {
res, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./testdata/invalid-helm",
},
})
assert.True(t, err != nil && res == nil)
// Ensure that the second invocation triggers the cached error state
if x == 1 {
assert.True(t, strings.HasPrefix(err.Error(), cachedManifestGenerationPrefix))
}
}
// 2) Jump forward X-1 minutes in time, where X is the expiration boundary
currentTime = currentTime.Add(time.Duration(tt.PauseGenerationOnFailureForMinutes-1) * time.Minute)
res, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./testdata/invalid-helm",
},
})
// 3) Ensure that the cache still returns a cached copy of the last error
assert.True(t, err != nil && res == nil)
assert.True(t, strings.HasPrefix(err.Error(), cachedManifestGenerationPrefix))
// 4) Jump forward 2 minutes in time, such that the pause generation time has elapsed and we should return to normal state
currentTime = currentTime.Add(2 * time.Minute)
res, err = service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./testdata/invalid-helm",
},
})
// 5) Ensure that the service no longer returns a cached copy of the last error
assert.True(t, err != nil && res == nil)
assert.True(t, !strings.HasPrefix(err.Error(), cachedManifestGenerationPrefix))
})
}
}
func TestManifestGenErrorCacheRespectsNoCache(t *testing.T) {
service := newService(".")
service.initConstants = RepoServerInitConstants{
ParallelismLimit: 1,
PauseGenerationAfterFailedGenerationAttempts: 1,
PauseGenerationOnFailureForMinutes: 0,
PauseGenerationOnFailureForRequests: 4,
}
// 1) Put the cache into the failure state
for x := 0; x < 2; x++ {
res, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./testdata/invalid-helm",
},
})
assert.True(t, err != nil && res == nil)
// Ensure that the second invocation is cached
if x == 1 {
assert.True(t, strings.HasPrefix(err.Error(), cachedManifestGenerationPrefix))
}
}
// 2) Call generateManifest with NoCache enabled
res, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./testdata/invalid-helm",
},
NoCache: true,
})
// 3) Ensure that the cache returns a new generation attempt, rather than a previous cached error
assert.True(t, err != nil && res == nil)
assert.True(t, !strings.HasPrefix(err.Error(), cachedManifestGenerationPrefix))
// 4) Call generateManifest
res, err = service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./testdata/invalid-helm",
},
})
// 5) Ensure that the subsequent invocation, after nocache, is cached
assert.True(t, err != nil && res == nil)
assert.True(t, strings.HasPrefix(err.Error(), cachedManifestGenerationPrefix))
}
func TestGenerateHelmWithValues(t *testing.T) {
service := newService("../..")
res, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./util/helm/testdata/redis",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"values-production.yaml"},
Values: `cluster: {slaveCount: 2}`,
},
},
})
assert.NoError(t, err)
replicasVerified := false
for _, src := range res.Manifests {
obj := unstructured.Unstructured{}
err = json.Unmarshal([]byte(src), &obj)
assert.NoError(t, err)
if obj.GetKind() == "Deployment" && obj.GetName() == "test-redis-slave" {
var dep v1.Deployment
err := runtime.DefaultUnstructuredConverter.FromUnstructured(obj.Object, &dep)
assert.NoError(t, err)
assert.Equal(t, int32(2), *dep.Spec.Replicas)
replicasVerified = true
}
}
assert.True(t, replicasVerified)
}
func TestHelmWithMissingValueFiles(t *testing.T) {
service := newService("../..")
missingValuesFile := "values-prod-overrides.yaml"
req := &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./util/helm/testdata/redis",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"values-production.yaml", missingValuesFile},
},
},
}
// Should fail since we're passing a non-existent values file, and error should indicate that
_, err := service.GenerateManifest(context.Background(), req)
assert.Error(t, err)
assert.Contains(t, err.Error(), fmt.Sprintf("%s: no such file or directory", missingValuesFile))
// Should template without error even if defining a non-existent values file
req.ApplicationSource.Helm.IgnoreMissingValueFiles = true
_, err = service.GenerateManifest(context.Background(), req)
assert.NoError(t, err)
}
// The requested value file (`../minio/values.yaml`) is outside the app path (`./util/helm/testdata/redis`), however
// since the requested value is sill under the repo directory (`~/go/src/github.com/argoproj/argo-cd`), it is allowed
func TestGenerateHelmWithValuesDirectoryTraversal(t *testing.T) {
service := newService("../..")
_, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./util/helm/testdata/redis",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"../minio/values.yaml"},
Values: `cluster: {slaveCount: 2}`,
},
},
})
assert.NoError(t, err)
// Test the case where the path is "."
service = newService("./testdata/my-chart")
_, err = service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: ".",
},
})
assert.NoError(t, err)
}
// This is a Helm first-class app with a values file inside the repo directory
// (`~/go/src/github.com/argoproj/argo-cd/reposerver/repository`), so it is allowed
func TestHelmManifestFromChartRepoWithValueFile(t *testing.T) {
service := newService(".")
source := &argoappv1.ApplicationSource{
Chart: "my-chart",
TargetRevision: ">= 1.0.0",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"./my-chart-values.yaml"},
},
}
request := &apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: source, NoCache: true}
response, err := service.GenerateManifest(context.Background(), request)
assert.NoError(t, err)
assert.NotNil(t, response)
assert.Equal(t, &apiclient.ManifestResponse{
Manifests: []string{"{\"apiVersion\":\"v1\",\"kind\":\"ConfigMap\",\"metadata\":{\"name\":\"my-map\"}}"},
Namespace: "",
Server: "",
Revision: "1.1.0",
SourceType: "Helm",
}, response)
}
// This is a Helm first-class app with a values file outside the repo directory
// (`~/go/src/github.com/argoproj/argo-cd/reposerver/repository`), so it is not allowed
func TestHelmManifestFromChartRepoWithValueFileOutsideRepo(t *testing.T) {
service := newService(".")
source := &argoappv1.ApplicationSource{
Chart: "my-chart",
TargetRevision: ">= 1.0.0",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"../my-chart-2/my-chart-2-values.yaml"},
},
}
request := &apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: source, NoCache: true}
_, err := service.GenerateManifest(context.Background(), request)
assert.Error(t, err)
}
func TestHelmManifestFromChartRepoWithValueFileLinks(t *testing.T) {
t.Run("Valid symlink", func(t *testing.T) {
service := newService("../..")
source := &argoappv1.ApplicationSource{
Chart: "my-chart",
TargetRevision: ">= 1.0.0",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"my-chart-link.yaml"},
},
}
request := &apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: source, NoCache: true}
_, err := service.GenerateManifest(context.Background(), request)
assert.NoError(t, err)
})
t.Run("Symlink pointing to outside", func(t *testing.T) {
service := newService("../..")
source := &argoappv1.ApplicationSource{
Chart: "my-chart",
TargetRevision: ">= 1.0.0",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"my-chart-outside-link.yaml"},
},
}
request := &apiclient.ManifestRequest{Repo: &argoappv1.Repository{}, ApplicationSource: source, NoCache: true}
_, err := service.GenerateManifest(context.Background(), request)
assert.Error(t, err)
assert.Contains(t, err.Error(), "outside repository root")
})
}
func TestGenerateHelmWithURL(t *testing.T) {
service := newService("../..")
_, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./util/helm/testdata/redis",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"https://raw.githubusercontent.com/argoproj/argocd-example-apps/master/helm-guestbook/values.yaml"},
Values: `cluster: {slaveCount: 2}`,
},
},
HelmOptions: &argoappv1.HelmOptions{ValuesFileSchemes: []string{"https"}},
})
assert.NoError(t, err)
}
// The requested value file (`../../../../../minio/values.yaml`) is outside the repo directory
// (`~/go/src/github.com/argoproj/argo-cd`), so it is blocked
func TestGenerateHelmWithValuesDirectoryTraversalOutsideRepo(t *testing.T) {
t.Run("Values file with relative path pointing outside repo root", func(t *testing.T) {
service := newService("../..")
_, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./util/helm/testdata/redis",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"../../../../../minio/values.yaml"},
Values: `cluster: {slaveCount: 2}`,
},
},
})
assert.Error(t, err)
assert.Contains(t, err.Error(), "outside repository root")
})
t.Run("Values file with relative path pointing inside repo root", func(t *testing.T) {
service := newService("./testdata/my-chart")
_, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: ".",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"../my-chart/my-chart-values.yaml"},
Values: `cluster: {slaveCount: 2}`,
},
},
})
assert.NoError(t, err)
})
t.Run("Values file with absolute path stays within repo root", func(t *testing.T) {
service := newService("./testdata/my-chart")
_, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: ".",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"/my-chart-values.yaml"},
Values: `cluster: {slaveCount: 2}`,
},
},
})
assert.NoError(t, err)
})
t.Run("Values file with absolute path using back-references outside repo root", func(t *testing.T) {
service := newService("./testdata/my-chart")
_, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: ".",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"/../../../my-chart-values.yaml"},
Values: `cluster: {slaveCount: 2}`,
},
},
})
assert.Error(t, err)
assert.Contains(t, err.Error(), "outside repository root")
})
t.Run("Remote values file from forbidden protocol", func(t *testing.T) {
service := newService("./testdata/my-chart")
_, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: ".",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"file://../../../../my-chart-values.yaml"},
Values: `cluster: {slaveCount: 2}`,
},
},
})
assert.Error(t, err)
assert.Contains(t, err.Error(), "is not allowed")
})
t.Run("Remote values file from custom allowed protocol", func(t *testing.T) {
service := newService("./testdata/my-chart")
_, err := service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: ".",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"s3://my-bucket/my-chart-values.yaml"},
},
},
HelmOptions: &argoappv1.HelmOptions{ValuesFileSchemes: []string{"s3"}},
})
assert.Error(t, err)
assert.Contains(t, err.Error(), "s3://my-bucket/my-chart-values.yaml: no such file or directory")
})
}
// File parameter should not allow traversal outside of the repository root
func TestGenerateHelmWithAbsoluteFileParameter(t *testing.T) {
service := newService("../..")
file, err := ioutil.TempFile("", "external-secret.txt")
assert.NoError(t, err)
externalSecretPath := file.Name()
defer func() { _ = os.RemoveAll(externalSecretPath) }()
expectedFileContent, err := ioutil.ReadFile("../../util/helm/testdata/external/external-secret.txt")
assert.NoError(t, err)
err = ioutil.WriteFile(externalSecretPath, expectedFileContent, 0644)
assert.NoError(t, err)
defer file.Close()
_, err = service.GenerateManifest(context.Background(), &apiclient.ManifestRequest{
Repo: &argoappv1.Repository{},
AppName: "test",
ApplicationSource: &argoappv1.ApplicationSource{
Path: "./util/helm/testdata/redis",
Helm: &argoappv1.ApplicationSourceHelm{
ValueFiles: []string{"values-production.yaml"},
Values: `cluster: {slaveCount: 2}`,
FileParameters: []argoappv1.HelmFileParameter{{
Name: "passwordContent",
Path: externalSecretPath,
}},
},
},
})
assert.Error(t, err)
}
// The requested file parameter (`../external/external-secret.txt`) is outside the app path
// (`./util/helm/testdata/redis`), however since the requested value is sill under the repo
// directory (`~/go/src/github.com/argoproj/argo-cd`), it is allowed. It is used as a means of
// providing direct content to a helm chart via a specific key.
func TestGenerateHelmWithFileParameter(t *testing.T) {
service := newService("../..")