/
nginx.go
77 lines (70 loc) · 1.7 KB
/
nginx.go
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package resources
import (
"fmt"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// NewNginxResources creates new Kubernetes nginx resources and takes in a namespace,
// the node name to run on, and replica count
func NewNginxResources(ns, serviceAccountName, nodeName string, replicas int32) *Resources {
labels := map[string]string{
"app": "nginx",
}
affinity := &corev1.Affinity{}
if nodeName != "" {
affinity = &corev1.Affinity{
NodeAffinity: &corev1.NodeAffinity{
RequiredDuringSchedulingIgnoredDuringExecution: &corev1.NodeSelector{
NodeSelectorTerms: []corev1.NodeSelectorTerm{
{
MatchExpressions: []corev1.NodeSelectorRequirement{
{
Key: "kubernetes.io/hostname",
Operator: corev1.NodeSelectorOpIn,
Values: []string{nodeName},
},
},
},
},
},
},
}
nodeName = "-" + nodeName
}
dp := &appsv1.Deployment{
ObjectMeta: metav1.ObjectMeta{
Name: fmt.Sprintf("nginx%s", nodeName),
Namespace: ns,
},
Spec: appsv1.DeploymentSpec{
Replicas: &replicas,
Selector: &metav1.LabelSelector{MatchLabels: labels},
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: labels,
},
Spec: corev1.PodSpec{
ServiceAccountName: serviceAccountName,
Affinity: affinity,
Containers: []corev1.Container{
{
Name: "nginx",
Image: "nginx:1.7.9",
Ports: []corev1.ContainerPort{
{
ContainerPort: 80,
},
},
},
},
},
},
},
}
svcs := []*corev1.Service{}
return &Resources{
Deployment: dp,
Services: svcs,
}
}