che-operator/pkg/operator/deployment_postgres.go

138 lines
3.8 KiB
Go

//
// Copyright (c) 2012-2018 Red Hat, Inc.
// This program and the accompanying materials are made
// available under the terms of the Eclipse Public License 2.0
// which is available at https://www.eclipse.org/legal/epl-2.0/
//
// SPDX-License-Identifier: EPL-2.0
//
// Contributors:
// Red Hat, Inc. - initial API and implementation
//
package operator
import (
"github.com/operator-framework/operator-sdk/pkg/sdk"
"github.com/sirupsen/logrus"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"os"
)
func newPostgresDeployment() *appsv1.Deployment {
name := "postgres"
return &appsv1.Deployment{
TypeMeta: metav1.TypeMeta{
Kind: "Deployment",
APIVersion: "apps/v1",
},
ObjectMeta: metav1.ObjectMeta{
Name: "postgres",
Namespace: namespace,
Labels: postgresLabels,
},
Spec: appsv1.DeploymentSpec{
Selector: &metav1.LabelSelector{MatchLabels: postgresLabels},
Strategy: appsv1.DeploymentStrategy{
Type: appsv1.DeploymentStrategyType("Recreate"),
},
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: postgresLabels,
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
{
Name: name + "-data",
VolumeSource: corev1.VolumeSource{
PersistentVolumeClaim: &corev1.PersistentVolumeClaimVolumeSource{
ClaimName: name + "-data",
},
},
},
},
Containers: []corev1.Container{
{
Name: name,
Image: "registry.access.redhat.com/rhscl/postgresql-96-rhel7:1-25",
ImagePullPolicy: corev1.PullIfNotPresent,
Ports: []corev1.ContainerPort{
{
Name: name,
ContainerPort: 5432,
Protocol: "TCP",
},
},
Resources: corev1.ResourceRequirements{
Requests: corev1.ResourceList{
corev1.ResourceMemory: resource.MustParse("512Mi"),
},
Limits: corev1.ResourceList{
corev1.ResourceMemory: resource.MustParse("1Gi"),
},
},
VolumeMounts: []corev1.VolumeMount{
{
Name: name + "-data",
MountPath: "/var/lib/pgsql/data",
},
},
ReadinessProbe: &corev1.Probe{
Handler: corev1.Handler{
Exec: &corev1.ExecAction{
Command: []string{
"/bin/sh",
"-i",
"-c",
"psql -h 127.0.0.1 -U " + chePostgresUser + " -q -d " + chePostgresDb + " -c 'SELECT 1'",
},
},
},
InitialDelaySeconds: 15,
FailureThreshold: 10,
SuccessThreshold: 1,
TimeoutSeconds: 5,
},
Env: []corev1.EnvVar{
{
Name: "POSTGRESQL_USER",
Value: chePostgresUser,
},
{
Name: "POSTGRESQL_PASSWORD",
Value: chePostgresPassword,
},
{
Name: "POSTGRESQL_DATABASE",
Value: chePostgresDb,
},
{
Name: "POSTGRESQL_ADMIN_PASSWORD",
Value: postgresAdminPassword,
},
}},
},
},
},
},
}
}
// CreatePostgresDeployment creates a deployment with 1 Postgres pod in spec. DB, user and password for Che are created
// via env variables while DB, user for Keycloak are provisioned in CreatePgJob
func CreatePostgresDeployment() *appsv1.Deployment {
k8s := GetK8SConfig()
deployment := newPostgresDeployment()
if err := sdk.Create(deployment); err != nil && !errors.IsAlreadyExists(err) {
logrus.Errorf("Failed to create Postgres deployment : %v", err)
logrus.Error("Operator is exiting")
os.Exit(1)
}
// wait until deployment is scaled to 1 replica to proceed with other deployments
k8s.GetDeploymentStatus(deployment)
return deployment
}