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deployment.go
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deployment.go
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//
// Copyright (c) 2019-2023 Red Hat, Inc.
// 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 asyncstorage
import (
"github.com/devfile/devworkspace-operator/internal/images"
"github.com/devfile/devworkspace-operator/pkg/common"
"github.com/devfile/devworkspace-operator/pkg/infrastructure"
nsconfig "github.com/devfile/devworkspace-operator/pkg/provision/config"
"github.com/devfile/devworkspace-operator/pkg/provision/sync"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
)
func SyncWorkspaceSyncDeploymentToCluster(workspace *common.DevWorkspaceWithConfig, sshConfigMap *corev1.ConfigMap, pvcName string, clusterAPI sync.ClusterAPI) (*appsv1.Deployment, error) {
podTolerations, nodeSelector, err := nsconfig.GetNamespacePodTolerationsAndNodeSelector(workspace.Namespace, clusterAPI)
if err != nil {
return nil, err
}
specDeployment := getWorkspaceSyncDeploymentSpec(workspace, sshConfigMap, pvcName, podTolerations, nodeSelector)
clusterObj, err := sync.SyncObjectWithCluster(specDeployment, clusterAPI)
switch err.(type) {
case nil:
break
case *sync.NotInSyncError:
return nil, NotReadyError
case *sync.UnrecoverableSyncError:
return nil, err // TODO: This should fail workspace start
default:
return nil, err
}
clusterDeployment := clusterObj.(*appsv1.Deployment)
if clusterDeployment.Status.ReadyReplicas > 0 {
return clusterDeployment, nil
}
return nil, NotReadyError
}
func getWorkspaceSyncDeploymentSpec(
workspace *common.DevWorkspaceWithConfig,
sshConfigMap *corev1.ConfigMap,
pvcName string,
tolerations []corev1.Toleration,
nodeSelector map[string]string) *appsv1.Deployment {
replicas := int32(1)
terminationGracePeriod := int64(1)
modeReadOnly := int32(0640)
var securityContext *corev1.PodSecurityContext
if infrastructure.IsOpenShift() {
securityContext = &corev1.PodSecurityContext{}
} else {
securityContext = workspace.Config.Workspace.PodSecurityContext
}
deployment := &appsv1.Deployment{
ObjectMeta: metav1.ObjectMeta{
Name: asyncServerDeploymentName,
Namespace: workspace.Namespace,
Labels: asyncServerLabels,
},
Spec: appsv1.DeploymentSpec{
Replicas: &replicas,
Selector: &metav1.LabelSelector{
MatchLabels: asyncServerLabels,
},
Strategy: appsv1.DeploymentStrategy{
Type: appsv1.RecreateDeploymentStrategyType,
},
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Name: "async-storage-server",
Namespace: workspace.Namespace,
Labels: asyncServerLabels,
},
Spec: corev1.PodSpec{
RestartPolicy: corev1.RestartPolicyAlways,
Containers: []corev1.Container{
{
Name: "async-storage-server",
Image: images.GetAsyncStorageServerImage(),
Ports: []corev1.ContainerPort{
{
ContainerPort: rsyncPort,
Protocol: corev1.ProtocolTCP,
},
},
Resources: corev1.ResourceRequirements{
Limits: map[corev1.ResourceName]resource.Quantity{
corev1.ResourceMemory: resource.MustParse(asyncServerMemoryLimit),
},
Requests: map[corev1.ResourceName]resource.Quantity{
corev1.ResourceMemory: resource.MustParse(asyncServerMemoryRequest),
},
},
VolumeMounts: []corev1.VolumeMount{
{
Name: "async-storage-data",
MountPath: "/async-storage",
},
{
// TODO: mounting a configmap with SubPath prevents changes from being propagated into the
// container and not using a subpath replaces all files in the directory and mounts it as a
// read-only filesystem.
// As a workaround, we could mount the whole configmap to some other directory and copy
// the file on startup, but this would require changes in the che-workspace-data-sync-storage
// container
// See issue https://github.com/kubernetes/kubernetes/issues/50345 for more info
Name: "async-storage-config",
MountPath: "/.ssh/authorized_keys",
ReadOnly: true,
SubPath: "authorized_keys",
},
},
},
},
Volumes: []corev1.Volume{
{
Name: "async-storage-data",
VolumeSource: corev1.VolumeSource{
PersistentVolumeClaim: &corev1.PersistentVolumeClaimVolumeSource{
ClaimName: pvcName,
},
},
},
{
Name: "async-storage-config",
VolumeSource: corev1.VolumeSource{
ConfigMap: &corev1.ConfigMapVolumeSource{
LocalObjectReference: corev1.LocalObjectReference{
Name: sshConfigMap.Name,
},
DefaultMode: &modeReadOnly,
},
},
},
},
TerminationGracePeriodSeconds: &terminationGracePeriod,
SecurityContext: securityContext,
AutomountServiceAccountToken: nil,
},
},
},
}
if tolerations != nil && len(tolerations) > 0 {
deployment.Spec.Template.Spec.Tolerations = tolerations
}
if nodeSelector != nil && len(nodeSelector) > 0 {
deployment.Spec.Template.Spec.NodeSelector = nodeSelector
}
return deployment
}
func GetWorkspaceSyncDeploymentCluster(namespace string, clusterAPI sync.ClusterAPI) (*appsv1.Deployment, error) {
deploy := &appsv1.Deployment{}
namespacedName := types.NamespacedName{
Name: "async-storage", // TODO
Namespace: namespace,
}
err := clusterAPI.Client.Get(clusterAPI.Ctx, namespacedName, deploy)
return deploy, err
}