mirror of https://github.com/status-im/consul.git
322 lines
7.9 KiB
Go
322 lines
7.9 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package bootstrap
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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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"testing"
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"time"
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"github.com/mitchellh/cli"
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"github.com/stretchr/testify/mock"
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"github.com/stretchr/testify/require"
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"github.com/hashicorp/go-hclog"
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"github.com/hashicorp/go-uuid"
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"github.com/hashicorp/consul/agent/hcp/bootstrap/constants"
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hcpclient "github.com/hashicorp/consul/agent/hcp/client"
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"github.com/hashicorp/consul/lib"
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"github.com/hashicorp/consul/sdk/testutil"
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"github.com/hashicorp/consul/tlsutil"
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)
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func Test_loadPersistedBootstrapConfig(t *testing.T) {
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type expect struct {
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loaded bool
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warning string
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}
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type testCase struct {
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existingCluster bool
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disableManagementToken bool
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mutateFn func(t *testing.T, dir string)
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expect expect
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}
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run := func(t *testing.T, tc testCase) {
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dataDir := testutil.TempDir(t, "load-bootstrap-cfg")
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dir := filepath.Join(dataDir, constants.SubDir)
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// Do some common setup as if we received config from HCP and persisted it to disk.
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require.NoError(t, lib.EnsurePath(dir, true))
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require.NoError(t, persistSuccessMarker(dir))
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if !tc.existingCluster {
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caCert, caKey, err := tlsutil.GenerateCA(tlsutil.CAOpts{})
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require.NoError(t, err)
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serverCert, serverKey, err := testLeaf(caCert, caKey)
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require.NoError(t, err)
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require.NoError(t, persistTLSCerts(dir, serverCert, serverKey, []string{caCert}))
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cfgJSON := `{"bootstrap_expect": 8}`
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require.NoError(t, persistBootstrapConfig(dir, cfgJSON))
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}
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var token string
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if !tc.disableManagementToken {
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var err error
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token, err = uuid.GenerateUUID()
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require.NoError(t, err)
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require.NoError(t, persistManagementToken(dir, token))
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}
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// Optionally mutate the persisted data to trigger errors while loading.
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if tc.mutateFn != nil {
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tc.mutateFn(t, dir)
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}
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ui := cli.NewMockUi()
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cfg, loaded := LoadPersistedBootstrapConfig(dataDir, ui)
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require.Equal(t, tc.expect.loaded, loaded, ui.ErrorWriter.String())
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if loaded {
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require.Equal(t, token, cfg.ManagementToken)
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require.Empty(t, ui.ErrorWriter.String())
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} else {
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require.Nil(t, cfg)
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require.Contains(t, ui.ErrorWriter.String(), tc.expect.warning)
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}
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}
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tt := map[string]testCase{
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"existing cluster with valid files": {
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existingCluster: true,
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// Don't mutate, files from setup are valid.
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mutateFn: nil,
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expect: expect{
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loaded: true,
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warning: "",
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},
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},
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"existing cluster no token": {
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existingCluster: true,
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disableManagementToken: true,
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expect: expect{
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loaded: false,
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},
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},
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"existing cluster no files": {
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existingCluster: true,
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mutateFn: func(t *testing.T, dir string) {
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// Remove all files
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require.NoError(t, os.RemoveAll(dir))
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},
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expect: expect{
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loaded: false,
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// No warnings since we assume we need to fetch config from HCP for the first time.
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warning: "",
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},
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},
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"new cluster with valid files": {
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// Don't mutate, files from setup are valid.
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mutateFn: nil,
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expect: expect{
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loaded: true,
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warning: "",
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},
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},
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"new cluster with no token": {
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disableManagementToken: true,
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expect: expect{
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loaded: false,
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},
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},
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"new cluster some files": {
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mutateFn: func(t *testing.T, dir string) {
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// Remove one of the required files
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require.NoError(t, os.Remove(filepath.Join(dir, CertFileName)))
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},
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expect: expect{
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loaded: false,
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warning: "configuration files on disk are incomplete",
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},
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},
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"new cluster no files": {
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mutateFn: func(t *testing.T, dir string) {
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// Remove all files
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require.NoError(t, os.RemoveAll(dir))
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},
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expect: expect{
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loaded: false,
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// No warnings since we assume we need to fetch config from HCP for the first time.
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warning: "",
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},
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},
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"new cluster invalid cert": {
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mutateFn: func(t *testing.T, dir string) {
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name := filepath.Join(dir, CertFileName)
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require.NoError(t, os.WriteFile(name, []byte("not-a-cert"), 0600))
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},
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expect: expect{
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loaded: false,
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warning: "invalid server certificate",
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},
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},
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"new cluster invalid CA": {
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mutateFn: func(t *testing.T, dir string) {
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name := filepath.Join(dir, CAFileName)
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require.NoError(t, os.WriteFile(name, []byte("not-a-ca-cert"), 0600))
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},
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expect: expect{
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loaded: false,
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warning: "invalid CA certificate",
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},
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},
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"existing cluster invalid token": {
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existingCluster: true,
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mutateFn: func(t *testing.T, dir string) {
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name := filepath.Join(dir, TokenFileName)
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require.NoError(t, os.WriteFile(name, []byte("not-a-uuid"), 0600))
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},
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expect: expect{
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loaded: false,
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warning: "is not a valid UUID",
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},
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},
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}
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for name, tc := range tt {
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t.Run(name, func(t *testing.T) {
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run(t, tc)
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})
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}
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}
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func TestFetchBootstrapConfig(t *testing.T) {
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type testCase struct {
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expectFetchErr error
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expectRetry bool
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}
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run := func(t *testing.T, tc testCase) {
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ui := cli.NewMockUi()
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dataDir := testutil.TempDir(t, "fetch-bootstrap-cfg")
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clientM := hcpclient.NewMockClient(t)
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if tc.expectFetchErr != nil && tc.expectRetry {
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clientM.On("FetchBootstrap", mock.Anything).
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Return(nil, tc.expectFetchErr)
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} else if tc.expectFetchErr != nil && !tc.expectRetry {
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clientM.On("FetchBootstrap", mock.Anything).
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Return(nil, tc.expectFetchErr).Once()
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} else {
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validToken, err := uuid.GenerateUUID()
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require.NoError(t, err)
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clientM.EXPECT().FetchBootstrap(mock.Anything).Return(&hcpclient.BootstrapConfig{
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ManagementToken: validToken,
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ConsulConfig: "{}",
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}, nil).Once()
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}
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ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
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defer cancel()
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cfg, err := FetchBootstrapConfig(ctx, clientM, dataDir, ui)
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if tc.expectFetchErr == nil {
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require.NoError(t, err)
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require.NotNil(t, cfg)
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return
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}
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require.Error(t, err)
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require.Nil(t, cfg)
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if tc.expectRetry {
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require.ErrorIs(t, err, context.DeadlineExceeded)
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} else {
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require.ErrorIs(t, err, tc.expectFetchErr)
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}
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}
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tt := map[string]testCase{
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"success": {},
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"unauthorized": {
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expectFetchErr: hcpclient.ErrUnauthorized,
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},
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"forbidden": {
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expectFetchErr: hcpclient.ErrForbidden,
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},
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"retryable fetch error": {
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expectFetchErr: errors.New("error"),
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expectRetry: true,
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},
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}
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for name, tc := range tt {
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t.Run(name, func(t *testing.T) {
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run(t, tc)
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})
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}
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}
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func TestLoadManagementToken(t *testing.T) {
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type testCase struct {
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skipHCPConfigDir bool
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skipTokenFile bool
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tokenFileContent string
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skipBootstrap bool
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}
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validToken, err := uuid.GenerateUUID()
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require.NoError(t, err)
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run := func(t *testing.T, tc testCase) {
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dataDir := testutil.TempDir(t, "load-management-token")
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hcpCfgDir := filepath.Join(dataDir, constants.SubDir)
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if !tc.skipHCPConfigDir {
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err := os.Mkdir(hcpCfgDir, 0755)
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require.NoError(t, err)
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}
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tokenFilePath := filepath.Join(hcpCfgDir, TokenFileName)
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if !tc.skipTokenFile {
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err := os.WriteFile(tokenFilePath, []byte(tc.tokenFileContent), 0600)
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require.NoError(t, err)
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}
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clientM := hcpclient.NewMockClient(t)
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if !tc.skipBootstrap {
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clientM.EXPECT().FetchBootstrap(mock.Anything).Return(&hcpclient.BootstrapConfig{
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ManagementToken: validToken,
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ConsulConfig: "{}",
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}, nil).Once()
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}
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token, err := LoadManagementToken(context.Background(), hclog.NewNullLogger(), clientM, dataDir)
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require.NoError(t, err)
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require.Equal(t, validToken, token)
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bytes, err := os.ReadFile(tokenFilePath)
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require.NoError(t, err)
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require.Equal(t, validToken, string(bytes))
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}
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tt := map[string]testCase{
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"token configured": {
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skipBootstrap: true,
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tokenFileContent: validToken,
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},
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"no token configured": {
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skipTokenFile: true,
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},
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"invalid token configured": {
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tokenFileContent: "invalid",
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},
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"no hcp-config directory": {
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skipHCPConfigDir: true,
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skipTokenFile: true,
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},
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}
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for name, tc := range tt {
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t.Run(name, func(t *testing.T) {
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run(t, tc)
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})
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}
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}
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