/
proxier.go
137 lines (112 loc) · 3.8 KB
/
proxier.go
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package framework
import (
"fmt"
"time"
maegusv1 "github.com/draveness/proxier/pkg/apis/maegus/v1beta1"
"github.com/draveness/proxier/pkg/controller/proxier"
"github.com/pkg/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
)
// MakeBasicProxier returns a proxier with given versions and weights.
func MakeBasicProxier(ns, name string, versions []string, weights []int32) *maegusv1.Proxier {
backends := []maegusv1.BackendSpec{}
for i := range versions {
backends = append(backends, maegusv1.BackendSpec{
Name: versions[i],
Weight: weights[i],
Selector: map[string]string{
"version": versions[i],
},
})
}
return &maegusv1.Proxier{
ObjectMeta: metav1.ObjectMeta{
Name: name,
Namespace: ns,
},
Spec: maegusv1.ProxierSpec{
Selector: map[string]string{
"app": name,
},
Ports: []maegusv1.ProxierPort{
{
Name: "http",
Protocol: maegusv1.ProtocolTCP,
Port: 80,
},
},
Backends: backends,
},
}
}
// CreateProxier creates a proxier.
func (f *Framework) CreateProxier(ns string, p *maegusv1.Proxier) (*maegusv1.Proxier, error) {
result, err := f.MaegusClientV1.Proxiers(ns).Create(p)
if err != nil {
return nil, fmt.Errorf("creating proxier instances failed (%v): %v", p.Name, err)
}
return result, nil
}
// CreateProxierAndWaitUntilReady creates a proxier instance and waits until ready.
func (f *Framework) CreateProxierAndWaitUntilReady(ns string, p *maegusv1.Proxier) (*maegusv1.Proxier, error) {
result, err := f.CreateProxier(ns, p)
if err != nil {
return nil, err
}
if err := f.WaitForProxierReady(result, 15*time.Second); err != nil {
return nil, fmt.Errorf("waiting for Proxier instances timed out (%v): %v", p.Name, err)
}
return result, nil
}
// UpdateProxier updates a proxier instance.
func (f *Framework) UpdateProxier(ns string, p *maegusv1.Proxier) (*maegusv1.Proxier, error) {
result, err := f.MaegusClientV1.Proxiers(ns).Update(p)
if err != nil {
return nil, fmt.Errorf("updating proxier instances failed (%v): %v", p.Name, err)
}
return result, nil
}
// UpdateProxierAndWaitUntilReady updates a proxier instance and waits until ready.
func (f *Framework) UpdateProxierAndWaitUntilReady(ns string, p *maegusv1.Proxier) (*maegusv1.Proxier, error) {
result, err := f.UpdateProxier(ns, p)
if err != nil {
return nil, err
}
if err := f.WaitForProxierReady(result, 15*time.Second); err != nil {
return nil, fmt.Errorf("waiting for Proxier instances timed out (%v): %v", p.Name, err)
}
return result, nil
}
// WaitForProxierReady returns when proxier shifted to running phase or timeout.
func (f *Framework) WaitForProxierReady(p *maegusv1.Proxier, timeout time.Duration) error {
var pollErr error
err := wait.Poll(2*time.Second, timeout, func() (bool, error) {
instance, pollErr := f.MaegusClientV1.Proxiers(p.Namespace).Get(p.Name, metav1.GetOptions{})
if pollErr != nil {
return false, nil
}
deploymentName := proxier.NewDeploymentName(p)
if err := f.WaitForDeployment(p.Namespace, deploymentName, timeout); err != nil {
return false, err
}
if err := f.WaitForServiceReady(p.Namespace, p.Name, timeout); err != nil {
return false, err
}
for _, backend := range p.Spec.Backends {
// backendServiceName := fmt.Sprintf("%s-%s-backend", p.Name, backend.Name)
if err := f.WaitForServiceReady(p.Namespace, fmt.Sprintf("%s-%s-backend", p.Name, backend.Name), timeout); err != nil {
return false, err
}
}
if instance.Status.ActiveBackends != int32(len(p.Spec.Backends)) {
return false, nil
}
if instance.Status.ObsoleteBackends != 0 {
return false, nil
}
// TODO: check the proxier expected backends with current backends
return true, nil
})
return errors.Wrapf(pollErr, "waiting for Proxier %v/%v: %v", p.Namespace, p.Name, err)
}