128 lines
2.7 KiB
Go
128 lines
2.7 KiB
Go
// Package client provides an implementation of a restricted subset of kubernetes API client
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package client
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import (
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"strings"
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"github.com/micro/go-micro/util/log"
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)
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const (
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// https://github.com/kubernetes/apimachinery/blob/master/pkg/util/validation/validation.go#L134
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dns1123LabelFmt string = "[a-z0-9]([-a-z0-9]*[a-z0-9])?"
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)
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var (
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// DefaultImage is default micro image
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DefaultImage = "micro/go-micro"
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)
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// Kubernetes client
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type Kubernetes interface {
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// Create creates new API resource
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Create(*Resource) error
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// Get queries API resrouces
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Get(*Resource, map[string]string) error
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// Update patches existing API object
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Update(*Resource) error
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// Delete deletes API resource
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Delete(*Resource) error
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// List lists API resources
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List(*Resource) error
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}
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// NewService returns default micro kubernetes service definition
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func NewService(name, version string) *Service {
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log.Tracef("kubernetes default service: name: %s, version: %s", name, version)
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Labels := map[string]string{
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"name": name,
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"version": version,
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"micro": "service",
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}
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svcName := name
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if len(version) > 0 {
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// API service object name joins name and version over "-"
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svcName = strings.Join([]string{name, version}, "-")
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}
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Metadata := &Metadata{
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Name: svcName,
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Namespace: "default",
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Version: version,
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Labels: Labels,
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}
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Spec := &ServiceSpec{
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Type: "ClusterIP",
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Selector: Labels,
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Ports: []ServicePort{{
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name + "-port", 9090, "",
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}},
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}
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return &Service{
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Metadata: Metadata,
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Spec: Spec,
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}
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}
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// NewService returns default micro kubernetes deployment definition
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func NewDeployment(name, version string) *Deployment {
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log.Tracef("kubernetes default deployment: name: %s, version: %s", name, version)
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Labels := map[string]string{
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"name": name,
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"version": version,
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"micro": "service",
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}
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depName := name
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if len(version) > 0 {
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// API deployment object name joins name and version over "-"
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depName = strings.Join([]string{name, version}, "-")
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}
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Metadata := &Metadata{
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Name: depName,
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Namespace: "default",
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Version: version,
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Labels: Labels,
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Annotations: map[string]string{},
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}
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// enable go modules by default
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env := EnvVar{
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Name: "GO111MODULE",
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Value: "on",
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}
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Spec := &DeploymentSpec{
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Replicas: 1,
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Selector: &LabelSelector{
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MatchLabels: Labels,
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},
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Template: &Template{
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Metadata: Metadata,
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PodSpec: &PodSpec{
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Containers: []Container{{
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Name: name,
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Image: DefaultImage,
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Env: []EnvVar{env},
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Command: []string{"go", "run", "main.go"},
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Ports: []ContainerPort{{
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Name: name + "-port",
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ContainerPort: 8080,
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}},
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}},
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},
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},
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}
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return &Deployment{
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Metadata: Metadata,
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Spec: Spec,
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}
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}
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