/
ensure.go
105 lines (92 loc) · 3.12 KB
/
ensure.go
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/*
Copyright 2021.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package operatorpod
import (
"context"
"strings"
"time"
appsv1 "k8s.io/api/apps/v1"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/klog/v2"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/DanielXLee/cluster-fabric-operator/controllers/ensures/operator/common/deployments"
)
const deploymentCheckInterval = 5 * time.Second
const deploymentWaitTime = 10 * time.Minute
// Ensure the operator is deployed, and running
func Ensure(c client.Client, namespace, operatorName, image string, debug bool) error {
deployment := &appsv1.Deployment{ObjectMeta: metav1.ObjectMeta{Name: operatorName, Namespace: namespace}}
or, err := ctrl.CreateOrUpdate(context.TODO(), c, deployment, func() error {
return NewDeployment(deployment, namespace, operatorName, image, debug)
})
if err != nil {
klog.Errorf("Failed to %s Deployment %s: %v", or, deployment.GetName(), err)
return err
}
klog.Infof("Deployment %s %s", deployment.GetName(), or)
return deployments.WaitForReady(c, namespace, deployment.Name, deploymentCheckInterval, deploymentWaitTime)
}
func NewDeployment(deployment *appsv1.Deployment, namespace, operatorName, image string, debug bool) error {
replicas := int32(1)
imagePullPolicy := v1.PullAlways
// If we are running with a local development image, don't try to pull from registry
if strings.HasSuffix(image, ":local") {
imagePullPolicy = v1.PullIfNotPresent
}
command := []string{operatorName, "-alsologtostderr"}
if debug {
command = append(command, "-v=3")
} else {
command = append(command, "-v=1")
}
deployment.Spec = appsv1.DeploymentSpec{
Replicas: &replicas,
Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"name": operatorName}},
Template: v1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{"name": operatorName},
},
Spec: v1.PodSpec{
ServiceAccountName: operatorName,
Containers: []v1.Container{
{
Name: operatorName,
Image: image,
Command: command,
ImagePullPolicy: imagePullPolicy,
Env: []v1.EnvVar{
{
Name: "WATCH_NAMESPACE", ValueFrom: &v1.EnvVarSource{
FieldRef: &v1.ObjectFieldSelector{
FieldPath: "metadata.namespace",
},
},
}, {
Name: "POD_NAME", ValueFrom: &v1.EnvVarSource{
FieldRef: &v1.ObjectFieldSelector{
FieldPath: "metadata.name",
},
},
}, {
Name: "OPERATOR_NAME", Value: operatorName,
},
},
},
},
},
},
}
return nil
}