/
deployment.go
121 lines (108 loc) · 3.8 KB
/
deployment.go
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package http
import (
k8s "github.com/bakins/k8s-client"
"github.com/pkg/errors"
)
type (
watchEventDeployment struct {
raw k8s.WatchEvent
object *k8s.Deployment
}
)
func (w *watchEventDeployment) Type() k8s.WatchEventType {
return w.raw.Type
}
func (w *watchEventDeployment) Object() (*k8s.Deployment, error) {
if w.object != nil {
return w.object, nil
}
if w.raw.Type == k8s.WatchEventTypeError {
var status k8s.Status
if err := w.raw.UnmarshalObject(&status); err != nil {
return nil, errors.Wrap(err, "failed to decode Status")
}
return nil, &status
}
var object k8s.Deployment
if err := w.raw.UnmarshalObject(&object); err != nil {
return nil, errors.Wrap(err, "failed to decode Deployment")
}
w.object = &object
return &object, nil
}
func deploymentGeneratePath(namespace, name string) string {
if namespace == "" && name == "" {
return "/apis/extensions/v1beta1/deployments"
}
if name == "" {
return "/apis/extensions/v1beta1/namespaces/" + namespace + "/deployments"
}
return "/apis/extensions/v1beta1/namespaces/" + namespace + "/deployments/" + name
}
// GetDeployment fetches a single Deployment
func (c *Client) GetDeployment(namespace, name string) (*k8s.Deployment, error) {
var out k8s.Deployment
_, err := c.do("GET", deploymentGeneratePath(namespace, name), nil, &out)
if err != nil {
return nil, errors.Wrap(err, "failed to get Deployment")
}
return &out, nil
}
// CreateDeployment creates a new Deployment. This will fail if it already exists.
func (c *Client) CreateDeployment(namespace string, item *k8s.Deployment) (*k8s.Deployment, error) {
item.TypeMeta.Kind = "Deployment"
item.TypeMeta.APIVersion = "extensions/v1beta1"
item.ObjectMeta.Namespace = namespace
var out k8s.Deployment
_, err := c.do("POST", deploymentGeneratePath(namespace, ""), item, &out, 201)
if err != nil {
return nil, errors.Wrap(err, "failed to create Deployment")
}
return &out, nil
}
// ListDeployments lists all Deployments in a namespace
func (c *Client) ListDeployments(namespace string, opts *k8s.ListOptions) (*k8s.DeploymentList, error) {
var out k8s.DeploymentList
_, err := c.do("GET", deploymentGeneratePath(namespace, "")+"?"+listOptionsQuery(opts, nil), nil, &out)
if err != nil {
return nil, errors.Wrap(err, "failed to list Deployments")
}
return &out, nil
}
// WatchDeployments watches all Deployment changes in a namespace
func (c *Client) WatchDeployments(namespace string, opts *k8s.WatchOptions, events chan k8s.DeploymentWatchEvent) error {
if events == nil {
return errors.New("events must not be nil")
}
rawEvents := make(chan k8s.WatchEvent)
go func() {
for rawEvent := range rawEvents {
events <- &watchEventDeployment{raw: rawEvent}
}
close(events)
}()
_, err := c.doWatch("GET", deploymentGeneratePath(namespace, "")+"?"+watchOptionsQuery(opts), nil, rawEvents)
if err != nil {
return errors.Wrap(err, "failed to watch Deployments")
}
return nil
}
// DeleteDeployment deletes a single Deployment. It will error if the Deployment does not exist.
func (c *Client) DeleteDeployment(namespace, name string) error {
_, err := c.do("DELETE", deploymentGeneratePath(namespace, name), nil, nil)
return errors.Wrap(err, "failed to delete Deployment")
}
// UpdateDeployment will update in place a single Deployment. Generally, you should call
// Get and then use that object for updates to ensure resource versions
// avoid update conflicts
func (c *Client) UpdateDeployment(namespace string, item *k8s.Deployment) (*k8s.Deployment, error) {
item.TypeMeta.Kind = "Deployment"
item.TypeMeta.APIVersion = "extensions/v1beta1"
item.ObjectMeta.Namespace = namespace
var out k8s.Deployment
_, err := c.do("PUT", deploymentGeneratePath(namespace, item.Name), item, &out)
if err != nil {
return nil, errors.Wrap(err, "failed to update Deployment")
}
return &out, nil
}