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manager.go
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manager.go
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package cloud
import (
"context"
"fmt"
"io/ioutil"
"os"
"strings"
"github.com/Juniper/asf/pkg/auth"
"github.com/Juniper/asf/pkg/keystone"
"github.com/Juniper/asf/pkg/logutil"
"github.com/Juniper/asf/pkg/logutil/report"
"github.com/Juniper/asf/pkg/osutil"
"github.com/Juniper/contrail/pkg/ansible"
"github.com/Juniper/contrail/pkg/client"
"github.com/Juniper/contrail/pkg/models"
"github.com/Juniper/contrail/pkg/services"
"github.com/gogo/protobuf/types"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
asfclient "github.com/Juniper/asf/pkg/client"
yaml "gopkg.in/yaml.v2"
)
// Config represents cloud configuration needed by cloudManager.
type Config struct { // nolint: maligned
// ID of cloud
ID string `yaml:"id"`
// Password of Cluster account.
Password string `yaml:"password"`
// DomainID is ID of keystone domain used for authentication.
DomainID string `yaml:"domain_id"`
// ProjectID is ID of keystone project used for authentication.
ProjectID string `yaml:"project_id"`
// DomainName is Name of keystone domain used for authentication.
DomainName string `yaml:"domain_name"`
// ProjectName is Name of keystone project used for authentication.
ProjectName string `yaml:"project_name"`
// AuthURL defines authentication URL.
AuthURL string `yaml:"auth_url"`
// Endpoint of API Server.
Endpoint string `yaml:"endpoint"`
// InSecure https connection to endpoint.
InSecure bool `yaml:"insecure"`
// UUID of cloud to be managed.
CloudID string `yaml:"cloud_id,omitempty"`
// Action to the performed with the cloud (values: create, update, delete).
Action string `yaml:"cloud_action,omitempty"`
// Logging level
LogLevel string `yaml:"log_level"`
// Logging file
LogFile string `yaml:"log_file"`
// Template root directory
TemplateRoot string `yaml:"template_root"`
// Optional Test var to run cloud in test mode
Test bool `yaml:"test"`
}
type terraformStateReader interface {
Read() (TerraformState, error)
}
type containerExecutor interface {
StartExecuteAndRemove(ctx context.Context, cp *ansible.ContainerParameters, cmd []string) error
}
// Cloud represents cloud service.
type Cloud struct {
config *Config
APIServer *client.HTTP
containerExecutor containerExecutor
log *logrus.Entry
reporter *report.Reporter
streamServer *logutil.StreamServer
terraformStateReader terraformStateReader
// TODO(dfurman): Do not store Contexts inside a struct type; instead, pass a Context explicitly to each function
// that needs it. See: https://golang.org/pkg/context/
ctx context.Context
}
// NewCloudManager creates cloud fields by reading config from given configPath
func NewCloudManager(configPath string) (*Cloud, error) {
data, err := ioutil.ReadFile(configPath)
if err != nil {
return nil, err
}
var c Config
err = yaml.UnmarshalStrict(data, &c)
if err != nil {
return nil, err
}
client := NewCloudHTTPClient(&c)
reporter := report.NewReporter(
client,
fmt.Sprintf("%s/%s", DefaultCloudResourcePath, c.CloudID),
logutil.NewFileLogger("reporter", c.LogFile).WithField("cloudID", c.CloudID),
)
player, err := ansible.NewContainerPlayer(reporter, c.LogFile)
if err != nil {
return nil, errors.Wrap(err, "new container player")
}
return NewCloud(&c, cloudTfStateReader{c.CloudID}, player, client, reporter)
}
// NewCloudHTTPClient returns a new HTTP client based on Cloud Config.
func NewCloudHTTPClient(c *Config) *client.HTTP {
return client.NewHTTP(&asfclient.HTTPConfig{
ID: c.ID,
Password: c.Password,
Endpoint: c.Endpoint,
AuthURL: c.AuthURL,
Scope: keystone.NewScope(
c.DomainID,
c.DomainName,
c.ProjectID,
c.ProjectName,
),
Insecure: c.InSecure,
})
}
// NewCloud returns a new Cloud instance
func NewCloud(
c *Config,
terraformStateReader terraformStateReader,
containerExecutor containerExecutor,
httpClient *client.HTTP,
reporter *report.Reporter,
) (*Cloud, error) {
if err := logutil.Configure(c.LogLevel); err != nil {
return nil, err
}
ctx := auth.NoAuth(context.Background())
if c.AuthURL != "" {
ctx = auth.WithIdentity(
context.Background(),
keystone.NewAuthIdentity(c.DomainID, c.ProjectID, c.ID, []string{c.ProjectName}),
)
}
if c.Action == "" {
return nil, fmt.Errorf("action not specified in the config")
}
if c.CloudID == "" {
return nil, fmt.Errorf("cloudID not specified in the config")
}
return &Cloud{
APIServer: httpClient,
config: c,
log: logutil.NewFileLogger("cloud", c.LogFile).WithField("cloudID", c.CloudID),
reporter: reporter,
streamServer: logutil.NewStreamServer(c.LogFile),
terraformStateReader: terraformStateReader,
ctx: ctx,
containerExecutor: containerExecutor,
}, nil
}
// Manage starts managing the cloud.
func (c *Cloud) Manage() error {
if err := c.manage(); err != nil {
if setErr := c.fail(); setErr != nil {
c.log.Errorf("Could not set Cloud state to failed state: %v", setErr)
}
c.log.Errorf("Cloud operation failed: %v", err)
return err
}
return nil
}
func (c *Cloud) manage() (err error) {
var isSet bool
if isSet, err = c.provisioningSetToNonState(); err != nil {
return errors.Wrap(err, "failed to resolve state of Cloud")
} else if !isSet {
return nil
}
data, err := c.getCloudData(false)
if err != nil {
return errors.Wrap(err, "failed to get Cloud data")
}
defer func() {
if delErr := c.removeVulnerableFiles(data); delErr != nil {
err = errors.Errorf(
"failed to delete vulnerable files: %s; manage error (if any): %s", delErr, err,
)
}
}()
return c.HandleCloudRequest()
}
func (c *Cloud) provisioningSetToNonState() (bool, error) {
cloudObject, err := GetCloud(c.ctx, c.APIServer, c.config.CloudID)
if err != nil {
return false, err
}
return cloudObject.GetProvisioningState() == StatusNoState, nil
}
// HandleCloudRequest handles Cloud create/update/delete request.
func (c *Cloud) HandleCloudRequest() error {
c.streamServer.Serve()
defer c.streamServer.Close()
isDeleteReq, err := c.isCloudDeleteRequest()
if err != nil {
return err
} else if isDeleteReq {
c.log.Debug("Starting delete of cloud")
if err = c.delete(); err != nil {
return errors.Wrapf(err, "failed to delete cloud with CloudID %v", c.config.CloudID)
}
c.log.Debug("Cloud deleted")
return nil
}
switch c.config.Action {
case CreateAction:
c.log.Debug("Starting create of cloud")
c.reporter.ReportStatus(c.ctx, map[string]interface{}{StatusField: StatusCreateProgress}, defaultCloudResource)
if err = c.create(); err != nil {
return errors.Wrapf(err, "failed to create cloud with CloudID %v", c.config.CloudID)
}
c.reporter.ReportStatus(c.ctx, map[string]interface{}{StatusField: StatusCreated}, defaultCloudResource)
case UpdateAction:
c.log.Debug("Starting update of cloud")
c.reporter.ReportStatus(c.ctx, map[string]interface{}{StatusField: StatusUpdateProgress}, defaultCloudResource)
if err = c.update(); err != nil {
return errors.Wrapf(err, "failed to update cloud with CloudID %v", c.config.CloudID)
}
c.reporter.ReportStatus(c.ctx, map[string]interface{}{StatusField: StatusUpdated}, defaultCloudResource)
default:
return errors.Errorf("Invalid action %s called for cloud %s", c.config.Action, c.config.CloudID)
}
return nil
}
func (c *Cloud) isCloudDeleteRequest() (bool, error) {
cloudObj, err := GetCloud(c.ctx, c.APIServer, c.config.CloudID)
if err != nil {
return false, err
}
return c.config.Action == UpdateAction && cloudObj.ProvisioningAction == DeleteCloudAction, nil
}
func (c *Cloud) fail() error {
cloudObject, err := GetCloud(c.ctx, c.APIServer, c.config.CloudID)
if err != nil {
return err
}
failStatus := c.getFailStatusField(cloudObject.GetProvisioningState())
if failStatus == "" {
return errors.New("unknown state change. Trying to set failure from state: " +
cloudObject.GetProvisioningState())
}
c.reporter.ReportStatus(c.ctx, map[string]interface{}{StatusField: failStatus}, defaultCloudResource)
return nil
}
func (c *Cloud) getFailStatusField(currentStatus string) string {
switch currentStatus {
case StatusCreateProgress:
return StatusCreateFailed
case StatusUpdateProgress:
return StatusUpdateFailed
case StatusNoState:
switch c.config.Action {
case CreateAction:
return StatusCreateFailed
case UpdateAction:
return StatusUpdateFailed
}
}
return ""
}
// nolint: gocyclo
func (c *Cloud) create() error {
data, err := c.getCloudData(false)
if err != nil {
return err
}
pubData := &publicCloud{}
onPremData := newOnPremCloud(c.ctx, c.APIServer, c.log)
if !data.isCloudPrivate() {
if err = pubData.Fill(c.ctx, c.APIServer, c.config.CloudID); err != nil {
return err
}
} else {
if err = onPremData.Fill(c.config.CloudID); err != nil {
return err
}
}
secret, err := c.initialize(data)
if err != nil {
return err
}
// Performing create // TODO(Daniel): extract function
c.log.Infof("Starting %s of cloud: %s", c.config.Action, data.info.FQName)
if data.isCloudPrivate() {
err = onPremData.MarshalAndSave(GetTopoFile(c.config.CloudID))
} else {
err = pubData.MarshalAndSave(GetTopoFile(c.config.CloudID))
}
if err != nil {
return err
}
c.log.Infof("Created topology file for cloud with uuid: %s ", c.config.CloudID)
if !data.isCloudPrivate() {
if err = secret.createSecretFile(data.info.GetParentClusterUUID()); err != nil {
return err
}
// depending upon the config action, it takes respective terraform action
if err = updateTopology(c, data.modifiedProviders(), data.info.ParentClusterUUID); err != nil {
return err
}
}
// update IP details only when cloud is public
// basically when instances created by terraform
if err = c.updatePublicCloudIP(data); err != nil {
return err
}
if err = c.resetPublicCloudModifiedStatus(data); err != nil {
return err
}
c.log.Debugf("Created cloud %s", c.config.CloudID)
return nil
}
func (d *Data) modifiedProviders() []string {
s := []string{}
if d.info.AwsModified {
s = append(s, aws)
}
if d.info.AzureModified {
s = append(s, azure)
}
if d.info.GCPModified {
s = append(s, google)
}
return s
}
func (c *Cloud) resetPublicCloudModifiedStatus(data *Data) error {
if data.isCloudPrivate() {
return nil
}
_, err := c.APIServer.UpdateCloud(c.ctx, &services.UpdateCloudRequest{
Cloud: &models.Cloud{
UUID: c.config.CloudID,
},
FieldMask: types.FieldMask{
Paths: []string{
models.CloudFieldAwsModified,
models.CloudFieldAzureModified,
models.CloudFieldGCPModified,
},
},
})
return err
}
// nolint: gocyclo
func (c *Cloud) update() error {
data, err := c.getCloudData(false)
if err != nil {
return err
}
if !data.isCloudPrivate() && len(data.modifiedProviders()) == 0 {
c.log.Debug("Topology is already up to date - skipping update")
return nil
}
pubData := &publicCloud{}
onPremData := newOnPremCloud(c.ctx, c.APIServer, c.log)
if !data.isCloudPrivate() {
if err = pubData.Fill(c.ctx, c.APIServer, c.config.CloudID); err != nil {
return err
}
} else {
if err = onPremData.Fill(c.config.CloudID); err != nil {
return err
}
}
var secret *secret
if !data.isCloudPrivate() {
secret, err = c.initializeSecret(data)
if err != nil {
return err
}
}
// Performing update // TODO(Daniel): extract function
c.log.Infof("Starting %s of cloud: %s", c.config.Action, data.info.FQName)
if data.isCloudPrivate() {
err = onPremData.MarshalAndSave(GetTopoFile(c.config.CloudID))
} else {
err = pubData.MarshalAndSave(GetTopoFile(c.config.CloudID))
}
if err != nil {
return err
}
c.log.Infof("Created topology file for cloud with uuid: %s ", c.config.CloudID)
//TODO(madhukar) handle if key-pair changes or aws-key
if !data.isCloudPrivate() {
if err = secret.createSecretFile(data.info.GetParentClusterUUID()); err != nil {
return err
}
if err = updateTopology(c, data.modifiedProviders(), data.info.ParentClusterUUID); err != nil {
return err
}
}
//update IP address
if err = c.updatePublicCloudIP(data); err != nil {
return err
}
if err = c.resetPublicCloudModifiedStatus(data); err != nil {
return err
}
c.log.Debugf("Updated cloud %s", c.config.CloudID)
return nil
}
func (c *Cloud) updatePublicCloudIP(data *Data) error {
if !data.isCloudPrivate() {
tfState, err := c.terraformStateReader.Read()
if err != nil {
return err
}
if err = updateIPDetails(c.ctx, data.instances, tfState); err != nil {
return err
}
}
return nil
}
func (c *Cloud) initialize(d *Data) (*secret, error) {
var secret *secret
var err error
if !d.isCloudPrivate() {
secret, err = c.initializeSecret(d)
if err != nil {
return nil, err
}
}
return secret, nil
}
func (c *Cloud) initializeSecret(d *Data) (*secret, error) {
s := newSecret(c)
if !d.isCloudPrivate() {
kp, err := s.getKeypair(d)
if err != nil {
return nil, err
}
if err = s.sfc.Update(kp); err != nil {
return nil, err
}
}
return s, nil
}
func (c *Cloud) delete() error {
data, err := c.getCloudData(true)
if err != nil {
return err
}
if data.isCloudPrivate() {
if err = c.verifyContrailClusterStatus(data); err != nil {
return err
}
} else {
var secret *secret
secret, err = c.initializeSecret(data)
if err != nil {
return err
}
if err = secret.createSecretFile(data.info.GetParentClusterUUID()); err != nil {
return err
}
if err = destroyTopology(c, data.modifiedProviders(), data.info.ParentClusterUUID); err != nil {
return err
}
}
if err = c.deleteAPIObjects(data); err != nil {
return err
}
return os.RemoveAll(GetCloudDir(c.config.CloudID))
}
func (c *Cloud) getCloudData(isDelRequest bool) (*Data, error) {
cloudData, err := c.newCloudData()
if err != nil {
return nil, err
}
err = cloudData.update(isDelRequest)
return cloudData, err
}
func (c *Cloud) newCloudData() (*Data, error) {
data := Data{cloud: c}
cloudObject, err := GetCloud(c.ctx, c.APIServer, c.config.CloudID)
if err != nil {
return nil, err
}
data.info = cloudObject
return &data, nil
}
// nolint: gocyclo
func (c *Cloud) deleteAPIObjects(d *Data) error {
if d.isCloudPrivate() {
if err := removePvtSubnetRefFromNodes(c.ctx, c.APIServer, d.getGatewayNodes()); err != nil {
return err
}
}
var errList, warnList []string
retErrList := deleteContrailMCGWRole(c.ctx,
c.APIServer, d.getGatewayNodes())
if retErrList != nil {
errList = append(errList, retErrList...)
}
if !d.isCloudPrivate() {
retErrList = deleteNodeObjects(c.ctx, c.APIServer, d.instances)
if retErrList != nil {
errList = append(errList, retErrList...)
}
}
retErrList = deleteCloudProviderAndDeps(c.ctx,
c.APIServer, d.providers)
if retErrList != nil {
errList = append(errList, retErrList...)
}
_, err := c.APIServer.DeleteCloud(c.ctx,
&services.DeleteCloudRequest{
ID: d.info.UUID,
},
)
if err != nil {
errList = append(errList, fmt.Sprintf(
"failed deleting Cloud %s err_msg: %s",
d.info.UUID, err))
}
cloudUserErrList := deleteCloudUsers(c.ctx, c.APIServer, d.users)
if cloudUserErrList != nil {
warnList = append(warnList, cloudUserErrList...)
}
if !d.isCloudPrivate() {
credErrList := deleteCredentialAndDeps(c.ctx, c.APIServer, d.credentials)
warnList = append(warnList, credErrList...)
}
// log the warning messages
if len(warnList) > 0 {
c.log.Warnf("could not delete cloud refs deps because of errors: %s",
strings.Join(warnList, "\n"))
}
// join all the errors and return it
if len(errList) > 0 {
return errors.New(strings.Join(errList, "\n"))
}
return nil
}
func (c *Cloud) verifyContrailClusterStatus(data *Data) error {
for _, clusterRef := range data.info.ContrailClusterBackRefs {
err := waitForClusterStatusToBeUpdated(c.ctx, c.log,
c.APIServer, clusterRef.UUID)
if err != nil {
return err
}
}
return nil
}
func (c *Cloud) getTemplateRoot() string {
if c.config.TemplateRoot == "" {
return DefaultTemplateRoot
}
return c.config.TemplateRoot
}
func (c *Cloud) removeVulnerableFiles(data *Data) error {
if data.isCloudPrivate() {
return nil
}
kfd := services.NewKeyFileDefaults()
f := []string{
GetTerraformAWSPlanFile(c.config.CloudID),
GetTerraformAzurePlanFile(c.config.CloudID),
GetTerraformGCPPlanFile(c.config.CloudID),
GetSecretFile(c.config.CloudID),
kfd.GetAzureSubscriptionIDPath(),
kfd.GetAzureClientIDPath(),
kfd.GetAzureClientSecretPath(),
kfd.GetAzureTenantIDPath(),
}
// Deploy worker to provision multicloud needs AWS secret files. Cloud worker must not delete them.
// Deploy worker needs to remove those files.
if !data.info.IsMulticloudProvisioning {
f = append(
f,
kfd.GetAWSAccessPath(),
kfd.GetAWSSecretPath(),
kfd.GetGoogleAccountPath(),
)
}
return osutil.ForceRemoveFiles(f, c.log)
}
// Config returns copy of Cloud's config.
func (c *Cloud) Config() Config {
return *c.config
}
// Context returns Cloud's context.
func (c *Cloud) Context() context.Context {
return c.ctx
}