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Svc metadata (#972)

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* Added service metadata

* Added metadata to runtime service

* Add Annotations metadata to service metadata

* Add micro/micro as default service owners

* Update runtime/kubernetes/client/kubernetes.go

Change comment

Co-Authored-By: Jake Sanders <i@am.so-aweso.me>
This commit is contained in:
Milos Gajdos 2019-11-22 17:10:00 +00:00 committed by Asim Aslam
parent 8dc3fb964e
commit 38e29c5101
10 changed files with 209 additions and 124 deletions
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7
runtime/kubernetes/client/client.go
View File

@ -152,10 +152,5 @@ func (c *client) List(r *Resource) error {
"micro": "service",
}
return api.NewRequest(c.opts).
Get().
Resource(r.Kind).
Params(&api.Params{LabelSelector: labels}).
Do().
Into(r.Value)
return c.Get(r, labels)
}

21
runtime/kubernetes/client/kubernetes.go
View File

@ -50,7 +50,6 @@ func DefaultService(name, version string) *Service {
if len(version) > 0 {
// API service object name joins name and version over "-"
svcName = strings.Join([]string{name, version}, "-")
}
Metadata := &Metadata{
@ -84,26 +83,32 @@ func DefaultDeployment(name, version, source string) *Deployment {
"micro": "service",
}
// API deployment object name joins name and version over "="
depName := strings.Join([]string{name, version}, "-")
depName := name
if len(version) > 0 {
// API deployment object name joins name and version over "-"
depName = strings.Join([]string{name, version}, "-")
}
Metadata := &Metadata{
Name: depName,
Namespace: "default",
Version: version,
Labels: Labels,
Annotations: map[string]string{
"source": source,
"owner": "micro",
"group": "micro",
},
}
// TODO: we need to figure out this version stuff
// might be worth adding Build to runtime.Service
// might have to add Build to runtime.Service
buildTime, err := strconv.ParseInt(version, 10, 64)
if err == nil {
buildUnixTimeUTC := time.Unix(buildTime, 0)
Metadata.Annotations = map[string]string{
"build": buildUnixTimeUTC.Format(time.RFC3339),
}
Metadata.Annotations["build"] = buildUnixTimeUTC.Format(time.RFC3339)
} else {
log.Debugf("Runtime could not parse build: %v", err)
log.Debugf("could not parse build: %v", err)
}
// enable go modules by default

6
runtime/kubernetes/client/templates.go
View File

@ -17,6 +17,12 @@ metadata:
{{ $key }}: "{{ $value }}"
{{- end }}
{{- end }}
annotations:
{{- with .Metadata.Annotations }}
{{- range $key, $value := . }}
{{ $key }}: "{{ $value }}"
{{- end }}
{{- end }}
spec:
replicas: {{ .Spec.Replicas }}
selector:

18
runtime/kubernetes/client/types.go
View File

@ -103,13 +103,21 @@ type DeploymentSpec struct {
Template *Template `json:"template,omitempty"`
}
// DeploymentCondition describes the state of deployment
type DeploymentCondition struct {
Type string `json:"type"`
Reason string `json:"reason,omitempty"`
Message string `json:"message,omitempty"`
}
// DeploymentStatus is returned when querying deployment
type DeploymentStatus struct {
Replicas int `json:"replicas,omitempty"`
UpdatedReplicas int `json:"updatedReplicas,omitempty"`
ReadyReplicas int `json:"readyReplicas,omitempty"`
AvailableReplicas int `json:"availableReplicas,omitempty"`
UnavailableReplicas int `json:"unavailableReplicas,omitempty"`
Replicas int `json:"replicas,omitempty"`
UpdatedReplicas int `json:"updatedReplicas,omitempty"`
ReadyReplicas int `json:"readyReplicas,omitempty"`
AvailableReplicas int `json:"availableReplicas,omitempty"`
UnavailableReplicas int `json:"unavailableReplicas,omitempty"`
Conditions []DeploymentCondition `json:"conditions,omitempty"`
}
// Deployment is Kubernetes deployment

148
runtime/kubernetes/kubernetes.go
View File

@ -109,6 +109,90 @@ func (k *kubernetes) Create(s *runtime.Service, opts ...runtime.CreateOption) er
return nil
}
// getMicroService queries kubernetes for micro service
// NOTE: this function is not thread-safe
func (k *kubernetes) getMicroService(labels map[string]string) ([]*runtime.Service, error) {
// get the service status
serviceList := new(client.ServiceList)
r := &client.Resource{
Kind: "service",
Value: serviceList,
}
if err := k.client.Get(r, labels); err != nil {
return nil, err
}
// get the deployment status
depList := new(client.DeploymentList)
d := &client.Resource{
Kind: "deployment",
Value: depList,
}
if err := k.client.Get(d, labels); err != nil {
return nil, err
}
// service map
svcMap := make(map[string]*runtime.Service)
// collect info from kubernetes service
for _, kservice := range serviceList.Items {
name := kservice.Metadata.Labels["name"]
version := kservice.Metadata.Labels["version"]
svcMap[name] = &runtime.Service{
Name: name,
Version: version,
Metadata: make(map[string]string),
}
// copy annotations metadata into service metadata
for k, v := range kservice.Metadata.Annotations {
svcMap[name].Metadata[k] = v
}
}
// collect additional info from kubernetes deployment
for _, kdep := range depList.Items {
name := kdep.Metadata.Labels["name"]
if svc, ok := svcMap[name]; ok {
// set the service source
svc.Source = kdep.Metadata.Annotations["source"]
// copy all annotations metadata into service metadata
for k, v := range kdep.Metadata.Annotations {
svc.Metadata[k] = v
}
// parse out deployment status
if len(kdep.Status.Conditions) > 0 {
status := kdep.Status.Conditions[0].Type
// pick the last known condition type and mark the service status with it
log.Debugf("Runtime setting %s service deployment status: %v", name, status)
svc.Metadata["status"] = status
}
// parse out deployment build
if build, ok := kdep.Metadata.Annotations["build"]; ok {
buildTime, err := time.Parse(time.RFC3339, build)
if err != nil {
log.Debugf("Runtime failed parsing build time for %s: %v", name, err)
continue
}
svc.Metadata["build"] = fmt.Sprintf("%d", buildTime.Unix())
continue
}
// if no build annotation is found, set it to current time
svc.Metadata["build"] = fmt.Sprintf("%d", time.Now().Unix())
}
}
// collect all the services and return
services := make([]*runtime.Service, 0, len(serviceList.Items))
for _, service := range svcMap {
services = append(services, service)
}
return services, nil
}
// Get returns all instances of given service
func (k *kubernetes) Get(name string, opts ...runtime.GetOption) ([]*runtime.Service, error) {
k.Lock()
@ -119,11 +203,12 @@ func (k *kubernetes) Get(name string, opts ...runtime.GetOption) ([]*runtime.Ser
return nil, errors.New("missing service name")
}
// set the default label
// set the default labels
labels := map[string]string{
"micro": "service",
"name": name,
}
var options runtime.GetOptions
for _, o := range opts {
o(&options)
@ -136,25 +221,21 @@ func (k *kubernetes) Get(name string, opts ...runtime.GetOption) ([]*runtime.Ser
log.Debugf("Runtime querying service %s", name)
serviceList := new(client.ServiceList)
r := &client.Resource{
Kind: "service",
Value: serviceList,
}
if err := k.client.Get(r, labels); err != nil {
return nil, err
return k.getMicroService(labels)
}
// List the managed services
func (k *kubernetes) List() ([]*runtime.Service, error) {
k.Lock()
defer k.Unlock()
labels := map[string]string{
"micro": "service",
}
services := make([]*runtime.Service, 0, len(serviceList.Items))
for _, kservice := range serviceList.Items {
service := &runtime.Service{
Name: kservice.Metadata.Name,
Version: kservice.Metadata.Version,
}
services = append(services, service)
}
log.Debugf("Runtime listing all micro services")
return services, nil
return k.getMicroService(labels)
}
// Update the service in place
@ -202,39 +283,6 @@ func (k *kubernetes) Delete(s *runtime.Service) error {
return nil
}
// List the managed services
func (k *kubernetes) List() ([]*runtime.Service, error) {
serviceList := new(client.ServiceList)
r := &client.Resource{
Kind: "service",
Value: serviceList,
}
if err := k.client.List(r); err != nil {
return nil, err
}
log.Debugf("Runtime found %d micro services", len(serviceList.Items))
services := make([]*runtime.Service, 0, len(serviceList.Items))
for _, service := range serviceList.Items {
buildTime, err := time.Parse(time.RFC3339, service.Metadata.Annotations["build"])
if err != nil {
log.Debugf("Runtime error parsing build time for %s: %v", service.Metadata.Name, err)
continue
}
// add the service to the list of services
svc := &runtime.Service{
Name: service.Metadata.Name,
Version: fmt.Sprintf("%d", buildTime.Unix()),
}
services = append(services, svc)
}
return services, nil
}
// run runs the runtime management loop
func (k *kubernetes) run(events <-chan runtime.Event) {
t := time.NewTicker(time.Second * 10)

2
runtime/runtime.go
View File

@ -88,4 +88,6 @@ type Service struct {
Exec []string
// Version of the service
Version string
// Metadata stores metadata
Metadata map[string]string
}

22
runtime/service/handler/handler.go
View File

@ -14,21 +14,23 @@ type Runtime struct {
func toProto(s *runtime.Service) *pb.Service {
return &pb.Service{
Name: s.Name,
Version: s.Version,
Source: s.Source,
Path: s.Path,
Exec: s.Exec,
Name: s.Name,
Version: s.Version,
Source: s.Source,
Path: s.Path,
Exec: s.Exec,
Metadata: s.Metadata,
}
}
func toService(s *pb.Service) *runtime.Service {
return &runtime.Service{
Name: s.Name,
Version: s.Version,
Source: s.Source,
Path: s.Path,
Exec: s.Exec,
Name: s.Name,
Version: s.Version,
Source: s.Source,
Path: s.Path,
Exec: s.Exec,
Metadata: s.Metadata,
}
}

78
runtime/service/proto/runtime.pb.go
View File

@ -30,10 +30,12 @@ type Service struct {
// local path of the source
Path string `protobuf:"bytes,4,opt,name=path,proto3" json:"path,omitempty"`
// command to execute
Exec []string `protobuf:"bytes,5,rep,name=exec,proto3" json:"exec,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
Exec []string `protobuf:"bytes,5,rep,name=exec,proto3" json:"exec,omitempty"`
// service metadata
Metadata map[string]string `protobuf:"bytes,6,rep,name=metadata,proto3" json:"metadata,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Service) Reset() { *m = Service{} }
@ -96,6 +98,13 @@ func (m *Service) GetExec() []string {
return nil
}
func (m *Service) GetMetadata() map[string]string {
if m != nil {
return m.Metadata
}
return nil
}
type CreateOptions struct {
// command to pass in
Command []string `protobuf:"bytes,1,rep,name=command,proto3" json:"command,omitempty"`
@ -570,6 +579,7 @@ func (m *ListResponse) GetServices() []*Service {
func init() {
proto.RegisterType((*Service)(nil), "go.micro.runtime.Service")
proto.RegisterMapType((map[string]string)(nil), "go.micro.runtime.Service.MetadataEntry")
proto.RegisterType((*CreateOptions)(nil), "go.micro.runtime.CreateOptions")
proto.RegisterType((*CreateRequest)(nil), "go.micro.runtime.CreateRequest")
proto.RegisterType((*CreateResponse)(nil), "go.micro.runtime.CreateResponse")
@ -587,32 +597,36 @@ func init() {
func init() { proto.RegisterFile("runtime.proto", fileDescriptor_86e2dd377c869464) }
var fileDescriptor_86e2dd377c869464 = []byte{
// 425 bytes of a gzipped FileDescriptorProto
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// 485 bytes of a gzipped FileDescriptorProto
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}

2
runtime/service/proto/runtime.proto
View File

@ -21,6 +21,8 @@ message Service {
string path = 4;
// command to execute
repeated string exec = 5;
// service metadata
map<string,string> metadata = 6;
}
message CreateOptions {

29
runtime/service/service.go
View File

@ -57,9 +57,10 @@ func (s *svc) Create(svc *runtime.Service, opts ...runtime.CreateOption) error {
// runtime service create request
req := &pb.CreateRequest{
Service: &pb.Service{
Name: svc.Name,
Version: svc.Version,
Source: svc.Source,
Name: svc.Name,
Version: svc.Version,
Source: svc.Source,
Metadata: svc.Metadata,
},
Options: &pb.CreateOptions{
Command: options.Command,
@ -98,11 +99,12 @@ func (s *svc) Get(name string, opts ...runtime.GetOption) ([]*runtime.Service, e
services := make([]*runtime.Service, 0, len(resp.Services))
for _, service := range resp.Services {
svc := &runtime.Service{
Name: service.Name,
Version: service.Version,
Source: service.Source,
Path: service.Path,
Exec: service.Exec,
Name: service.Name,
Version: service.Version,
Source: service.Source,
Path: service.Path,
Exec: service.Exec,
Metadata: service.Metadata,
}
services = append(services, svc)
}
@ -155,11 +157,12 @@ func (s *svc) List() ([]*runtime.Service, error) {
services := make([]*runtime.Service, 0, len(resp.Services))
for _, service := range resp.Services {
svc := &runtime.Service{
Name: service.Name,
Version: service.Version,
Source: service.Source,
Path: service.Path,
Exec: service.Exec,
Name: service.Name,
Version: service.Version,
Source: service.Source,
Path: service.Path,
Exec: service.Exec,
Metadata: service.Metadata,
}
services = append(services, svc)
}