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contract.go
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contract.go
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package core
import (
"fmt"
"github.com/go-errors/errors"
"github.com/viant/endly/system/kubernetes/shared"
"github.com/viant/toolbox/url"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/kubernetes/pkg/apis/core"
"strings"
)
const defaultWaitTimeoutMs = 60000
//ResourceInfoResponse represents info response
type ResourceInfoResponse struct {
Items []*ResourceInfo
}
//GetRequest represents get request
type GetRequest struct {
Name string
metav1.ListOptions
Describe bool `description:"describe flag control output"`
apiKindMethod_ string
multiItem bool
kinds []string
}
//GetResponse represents get response
type GetResponse ResourceInfoResponse
//CreateRequest represents create request
type CreateRequest struct {
*ResourceMeta
*url.Resource
Expand bool `description:"flag to expand resource with $ expression"`
}
//CreateResponse represents create response
type CreateResponse ResourceInfoResponse
//DeleteRequest represents delete response
type DeleteRequest struct {
Name string
LabelSelector string
metav1.TypeMeta `json:",inline"`
*url.Resource
TimeoutMs int
}
//DeleteResponse represents delete response
type DeleteResponse ResourceInfoResponse
//ApplyRequest represents apply request
type ApplyRequest struct {
*url.Resource
*ResourceMeta
Expand bool `description:"flag to expand resource with $ expression"`
}
//ApplyResponse represents apply response
type ApplyResponse ResourceInfoResponse
//RunRequest represents run request
type RunRequest struct {
Expose bool
Replicas int
Template string
Schedule string
Labels map[string]string
Name string `description:"metadata.name"`
RestartPolicy core.RestartPolicy `description:"spec.restartPolicy"`
DNSPolicy v1.DNSPolicy `description:"spec.dNSPolicy"`
ServiceAccount string `description:"spec.serviceAccountName"`
ImagePullPolicy core.PullPolicy `description:"spec.containers[].imagePullPolicy"`
Image string `description:"spec.containers[].image"`
Commands []string `description:"spec.containers[].commands"`
Args []string `description:"spec.containers[].args"`
Env map[string]string `description:"spec.containers[].env"`
Limits map[string]string `description:"spec.containers[].resources.limits"`
Requests map[string]string `description:"spec.containers[].resources.requests"`
Port int `description:"spec.containers[].ports[].containerPort"`
HostPort int `description:"spec.containers[].ports[].hostPort"`
}
//RunResponse represents run response
type RunResponse ResourceInfoResponse
//ExposeRequest represent expose request
type ExposeRequest struct {
Resource string `description:"a target resource name to be exposed"`
ResourceKind string `description:"optional target resource kind"`
Name string `description:"metadata.name"`
Protocol v1.Protocol `description:"spec.ports[].protocol"`
Port int32 `description:"spec.ports[].port: expose port"`
TargetPort string `description:"spec.ports[].targetPort: name or number for the port on the container that the service should direct traffic to"`
Type string `description:"spec.type: for this service: ClusterIP, NodePort, LoadBalancer, or ExternalName"`
LoadBalancerIP string `description:"spec.loadBalancerIP: IP to assign to the LoadBalancer"`
Labels map[string]string `description:"spec.labels"`
ExternalIPs string `description:"spec.ExternalIPs"`
SessionAffinity string `description:"spec.SessionAffinity: if non empty: 'None', 'ClientIP'"`
ClusterIP string `description:"spec.ClusterIP: to be assigned to the service. Leave empty to auto-allocate, or set to 'None' to create a headless service"`
ExternalName string `description:"spec.externalName"`
HealthCheckNodePort int `description:"spec.HealthCheckNodePort"`
kinds []string
}
//ExposeResponse represent expose response
type ExposeResponse ResourceInfoResponse
//ForwardPortsRequest represents forward port request
type ForwardPortsRequest struct {
Name string `description:"resource name"`
LabelSelector string `json:"selector" yaml:"selector" description:"selector for matching pod or resource with pod spec"`
metav1.TypeMeta `json:",inline"`
Ports []string `description:"ports to forward in dest:source or just port"`
TimeoutMs int `description:"maximum wait time for pod getting ready"`
}
//ForwardPortsRequest represents forward port response
type ForwardPortsResponse struct {
Name string
}
//Init initialises request
func (r *ExposeRequest) Init() error {
if r.Protocol == "" {
r.Protocol = "TCP"
}
if r.Type == "" {
r.Type = "ClusterIP"
}
if len(r.Labels) == 0 {
r.Labels = make(map[string]string)
}
if strings.Contains(r.Resource, "/") {
pair := strings.SplitN(r.Resource, "/", 2)
r.ResourceKind = pair[0]
r.Resource = pair[1]
}
if r.ResourceKind == "" {
r.kinds = shared.MatchedMetaTypes("Deployment", "Service", "ReplicaSet", "ReplicationController", "Pod")
} else {
r.kinds = make([]string, 0)
for _, kind := range strings.Split(r.ResourceKind, ",") {
r.kinds = append(r.kinds, strings.TrimSpace(kind))
}
}
if r.Name == "" { //inherit nme from source resource
r.Name = r.Resource
}
return nil
}
//Validate checks if request is valid
func (r *ExposeRequest) Validate() error {
if r.Resource == "" {
return fmt.Errorf("resource was empty")
}
return nil
}
func (r *GetRequest) Init() (err error) {
if r.Kind == "" && r.Name != "" {
if parts := strings.Split(r.Name, "/"); len(parts) == 2 {
r.Kind = parts[0]
r.Name = parts[1]
}
}
if r.Name == "" {
r.apiKindMethod_ = "List"
r.multiItem = true
} else {
r.apiKindMethod_ = "Get"
}
if r.Kind != "" && len(r.kinds) == 0 {
r.kinds = make([]string, 0)
if strings.Contains(r.Kind, ",") {
for _, item := range strings.Split(r.Kind, "") {
r.kinds = append(r.kinds, strings.TrimSpace(item))
}
r.kinds = shared.MetaTypes()
} else if strings.Contains(r.Kind, "*") {
for _, item := range strings.Split(r.Kind, "") {
r.kinds = append(r.kinds, strings.TrimSpace(item))
}
r.kinds = shared.MetaTypes()
} else {
r.kinds = append(r.kinds, r.Kind)
}
}
return nil
}
func (r *GetRequest) Validate() (err error) {
if r.Kind == "" {
return fmt.Errorf("kind was empty, consider using placeholder kind='*' for global search")
}
return nil
}
func (r *RunRequest) Init() error {
if r.ImagePullPolicy == "" {
r.ImagePullPolicy = core.PullAlways
}
if len(r.Labels) == 0 {
r.Labels = make(map[string]string)
}
if r.Replicas == 0 {
r.Replicas = 1
}
if r.DNSPolicy == "" {
r.DNSPolicy = v1.DNSClusterFirst
}
if r.RestartPolicy == "" {
r.RestartPolicy = core.RestartPolicyAlways
}
r.Labels["run"] = r.Name
if r.Template == "" && r.Schedule != "" {
r.Template = CronJobV1Beta1GeneratorName
}
if r.Template == "" {
switch r.RestartPolicy {
case core.RestartPolicyAlways:
r.Template = DeploymentAppsV1GeneratorName
case core.RestartPolicyOnFailure:
r.Template = JobV1GeneratorName
case core.RestartPolicyNever:
r.Template = RunPodV1GeneratorName
}
}
return nil
}
func (r *RunRequest) Validate() error {
if r.Name == "" {
return fmt.Errorf("name was empty")
}
if r.HostPort > 0 && r.Port == 0 {
return fmt.Errorf("hostPort required port")
}
return nil
}
func (r *CreateRequest) Init() (err error) {
if r.Resource != nil {
if err = r.Resource.Init(); err != nil {
return err
}
}
return nil
}
func (r *DeleteRequest) Init() (err error) {
if r.Resource != nil {
if err = r.Resource.Init(); err != nil {
return err
}
}
if r.TimeoutMs == 0 {
r.TimeoutMs = defaultWaitTimeoutMs
}
return nil
}
//AsGetRequest returns get request
func (r *DeleteRequest) AsGetRequest() *GetRequest {
result := &GetRequest{
Name: r.Name,
}
if r.Kind == "*" {
result.kinds = shared.MatchedMetaTypes("Deployment", "Service", "ReplicaSet", "ReplicationController", "Pod", "Job", "CronJob", "Endpoints")
}
result.TypeMeta = r.TypeMeta
result.LabelSelector = r.LabelSelector
return result
}
//Init initializes request
func (r *ApplyRequest) Init() error {
return nil
}
//Validate checks if request is valid
func (r *ForwardPortsRequest) Init() error {
if r.TimeoutMs == 0 {
r.TimeoutMs = defaultWaitTimeoutMs
}
return nil
}
//Validate checks if request is valid
func (r *ForwardPortsRequest) Validate() error {
if r.Kind == "" {
return errors.New("kind was empty")
}
return nil
}
//AsGetRequest returns get request
func (r *ForwardPortsRequest) AsGetRequest() (*GetRequest, error) {
result := &GetRequest{
Name: r.Name,
}
result.TypeMeta = r.TypeMeta
result.LabelSelector = r.LabelSelector
return result, result.Init()
}