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init command creates kubedb-operator service #48

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merged 2 commits into from
May 31, 2017
Merged

init command creates kubedb-operator service #48

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7955ce1
init command creates kubedb-operator service
mirshahriar May 31, 2017
c9d09f8
fixed
mirshahriar May 31, 2017
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81 changes: 60 additions & 21 deletions pkg/cmd/init.go
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@ import (
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
"k8s.io/kubernetes/pkg/util/intstr"
)

var (
Expand Down Expand Up @@ -46,9 +47,11 @@ func NewCmdInit(out io.Writer, errOut io.Writer) *cobra.Command {
}

const (
operatorName = "kubedb-operator"
operatorImage = "kubedb/operator"
operatorContainer = "operator"
operatorName = "kubedb-operator"
operatorImage = "kubedb/operator"
operatorContainer = "operator"
operatorPortName = "web"
operatorPortNumber = 8080
)

func RunInit(f cmdutil.Factory, cmd *cobra.Command, out, errOut io.Writer) error {
Expand Down Expand Up @@ -111,26 +114,30 @@ func RunInit(f cmdutil.Factory, cmd *cobra.Command, out, errOut io.Writer) error

fmt.Fprintln(out, "Successfully upgraded operator deployment.")
} else {
var err error
if _, err = getOperatorDeployment(client, namespace); err == nil {
fmt.Fprintln(errOut, "Operator already exists.")
return nil
} else {
if !k8serr.IsNotFound(err) {
return err
}
}

if err := util.CheckDockerImageVersion(operatorImage, version); err != nil {
fmt.Fprintln(errOut, fmt.Sprintf(`Operator image %v:%v not found.`, operatorImage, version))
return nil
}

if err := createOperatorDeployment(client, namespace, version); err != nil {
return err
if k8serr.IsAlreadyExists(err) {
fmt.Fprintln(errOut, "Operator deployment already exists.")
} else {
return err
}
} else {
fmt.Fprintln(out, "Successfully created operator deployment.")
}

fmt.Fprintln(out, "Successfully created operator deployment.")
if err := createOperatorService(client, namespace); err != nil {
if k8serr.IsAlreadyExists(err) {
fmt.Fprintln(errOut, "Operator service already exists.")
} else {
return err
}
} else {
fmt.Fprintln(out, "Successfully created operator service.")
}
}

return nil
Expand All @@ -140,24 +147,24 @@ func getOperatorDeployment(client *internalclientset.Clientset, namespace string
return client.ExtensionsClient.Deployments(namespace).Get(operatorName)
}

func createOperatorDeployment(client *internalclientset.Clientset, namespace, version string) error {
label := map[string]string{
"run": operatorName,
}
var operatorLabel = map[string]string{
"app": operatorName,
}

func createOperatorDeployment(client *internalclientset.Clientset, namespace, version string) error {
deployment := &kext.Deployment{
ObjectMeta: kapi.ObjectMeta{
Name: operatorName,
Namespace: namespace,
},
Spec: kext.DeploymentSpec{
Selector: &unversioned.LabelSelector{
MatchLabels: label,
MatchLabels: operatorLabel,
},
Replicas: 1,
Template: kapi.PodTemplateSpec{
ObjectMeta: kapi.ObjectMeta{
Labels: label,
Labels: operatorLabel,
},
Spec: kapi.PodSpec{
Containers: []kapi.Container{
Expand All @@ -166,6 +173,7 @@ func createOperatorDeployment(client *internalclientset.Clientset, namespace, ve
Image: fmt.Sprintf("%v:%v", operatorImage, version),
Args: []string{
"run",
fmt.Sprintf("--address=:%v", operatorPortNumber),
"--v=3",
},
Env: []kapi.EnvVar{
Expand All @@ -179,6 +187,13 @@ func createOperatorDeployment(client *internalclientset.Clientset, namespace, ve
},
},
},
Ports: []kapi.ContainerPort{
{
Name: operatorPortName,
Protocol: kapi.ProtocolTCP,
ContainerPort: operatorPortNumber,
},
},
},
},
},
Expand All @@ -190,6 +205,30 @@ func createOperatorDeployment(client *internalclientset.Clientset, namespace, ve
return err
}

func createOperatorService(client *internalclientset.Clientset, namespace string) error {
svc := &kapi.Service{
ObjectMeta: kapi.ObjectMeta{
Name: operatorName,
Namespace: namespace,
},
Spec: kapi.ServiceSpec{
Type: kapi.ServiceTypeClusterIP,
Ports: []kapi.ServicePort{
{
Name: operatorPortName,
Port: operatorPortNumber,
Protocol: kapi.ProtocolTCP,
TargetPort: intstr.FromString(operatorPortName),
},
},
Selector: operatorLabel,
},
}

_, err := client.Core().Services(namespace).Create(svc)
return err
}

func updateOperatorDeployment(client *internalclientset.Clientset, deployment *kext.Deployment) error {
_, err := client.ExtensionsClient.Deployments(deployment.Namespace).Update(deployment)
return err
Expand Down