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add restic integration for doing pod volume backups/restores

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Signed-off-by: Steve Kriss <steve@heptio.com>
This commit is contained in:
Steve Kriss
2018-06-06 09:48:10 -07:00
parent c2c5b9040c
commit 50d4084fac
86 changed files with 5421 additions and 485 deletions
Download Patch File Download Diff File Expand all files Collapse all files
pkg/install/config.go
+32 -5
View File
@@ -1,3 +1,19 @@
/*
Copyright 2018 the Heptio Ark contributors.
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 install
import (
@@ -11,9 +27,10 @@ import (
type arkConfigOption func(*arkConfig)
type arkConfig struct {
backupSyncPeriod time.Duration
gcSyncPeriod time.Duration
restoreOnly bool
backupSyncPeriod time.Duration
gcSyncPeriod time.Duration
podVolumeOperationTimeout time.Duration
restoreOnly bool
}
func WithBackupSyncPeriod(t time.Duration) arkConfigOption {
@@ -28,6 +45,12 @@ func WithGCSyncPeriod(t time.Duration) arkConfigOption {
}
}
func WithPodVolumeOperationTimeout(t time.Duration) arkConfigOption {
return func(c *arkConfig) {
c.podVolumeOperationTimeout = t
}
}
func WithRestoreOnly() arkConfigOption {
return func(c *arkConfig) {
c.restoreOnly = true
@@ -44,8 +67,9 @@ func Config(
opts ...arkConfigOption,
) *arkv1.Config {
c := &arkConfig{
backupSyncPeriod: 30 * time.Minute,
gcSyncPeriod: 30 * time.Minute,
backupSyncPeriod: 30 * time.Minute,
gcSyncPeriod: 30 * time.Minute,
podVolumeOperationTimeout: 60 * time.Minute,
}
for _, opt := range opts {
@@ -74,6 +98,9 @@ func Config(
ScheduleSyncPeriod: metav1.Duration{
Duration: time.Minute,
},
PodVolumeOperationTimeout: metav1.Duration{
Duration: c.podVolumeOperationTimeout,
},
RestoreOnlyMode: c.restoreOnly,
}
}
pkg/install/crd.go
+18
View File
@@ -1,3 +1,19 @@
/*
Copyright 2018 the Heptio Ark contributors.
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 install
import (
@@ -18,6 +34,8 @@ func CRDs() []*apiextv1beta1.CustomResourceDefinition {
crd("Config", "configs"),
crd("DownloadRequest", "downloadrequests"),
crd("DeleteBackupRequest", "deletebackuprequests"),
crd("PodVolumeBackup", "podvolumebackups"),
crd("PodVolumeRestore", "podvolumerestores"),
}
}
pkg/install/daemonset.go
+130
View File
@@ -0,0 +1,130 @@
/*
Copyright 2018 the Heptio Ark contributors.
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 install
import (
"strings"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
func DaemonSet(namespace string, opts ...podTemplateOption) *appsv1.DaemonSet {
c := &podTemplateConfig{
image: "gcr.io/heptio-images/ark:latest",
}
for _, opt := range opts {
opt(c)
}
pullPolicy := corev1.PullAlways
imageParts := strings.Split(c.image, ":")
if len(imageParts) == 2 && imageParts[1] != "latest" {
pullPolicy = corev1.PullIfNotPresent
}
daemonSet := &appsv1.DaemonSet{
ObjectMeta: objectMeta(namespace, "restic"),
Spec: appsv1.DaemonSetSpec{
Selector: &metav1.LabelSelector{
MatchLabels: map[string]string{
"name": "restic",
},
},
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{
"name": "restic",
},
},
Spec: corev1.PodSpec{
ServiceAccountName: "ark",
Volumes: []corev1.Volume{
{
Name: "host-pods",
VolumeSource: corev1.VolumeSource{
HostPath: &corev1.HostPathVolumeSource{
Path: "/var/lib/kubelet/pods",
},
},
},
},
Containers: []corev1.Container{
{
Name: "restic",
Image: c.image,
ImagePullPolicy: pullPolicy,
VolumeMounts: []corev1.VolumeMount{
{
Name: "host-pods",
MountPath: "/host_pods",
},
},
Env: []corev1.EnvVar{
{
Name: "NODE_NAME",
ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{
FieldPath: "spec.nodeName",
},
},
},
{
Name: "HEPTIO_ARK_NAMESPACE",
ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{
FieldPath: "metadata.namespace",
},
},
},
{
Name: "GOOGLE_APPLICATION_CREDENTIALS",
Value: "/credentials/cloud",
},
{
Name: "AWS_SHARED_CREDENTIALS_FILE",
Value: "/credentials/cloud",
},
},
},
},
},
},
},
}
if !c.withoutCredentialsVolume {
daemonSet.Spec.Template.Spec.Volumes = append(
daemonSet.Spec.Template.Spec.Volumes,
corev1.Volume{
Name: "cloud-credentials",
VolumeSource: corev1.VolumeSource{
Secret: &corev1.SecretVolumeSource{
SecretName: "cloud-credentials",
},
},
},
)
}
daemonSet.Spec.Template.Spec.Containers[0].Env = append(daemonSet.Spec.Template.Spec.Containers[0].Env, c.envVars...)
return daemonSet
}
pkg/install/deployment.go
+41 -8
View File
@@ -1,3 +1,19 @@
/*
Copyright 2018 the Heptio Ark contributors.
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 install
import (
@@ -8,27 +24,44 @@ import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
type deploymentOption func(*deploymentConfig)
type podTemplateOption func(*podTemplateConfig)
type deploymentConfig struct {
type podTemplateConfig struct {
image string
withoutCredentialsVolume bool
envVars []corev1.EnvVar
}
func WithImage(image string) deploymentOption {
return func(c *deploymentConfig) {
func WithImage(image string) podTemplateOption {
return func(c *podTemplateConfig) {
c.image = image
}
}
func WithoutCredentialsVolume() deploymentOption {
return func(c *deploymentConfig) {
func WithoutCredentialsVolume() podTemplateOption {
return func(c *podTemplateConfig) {
c.withoutCredentialsVolume = true
}
}
func Deployment(namespace string, opts ...deploymentOption) *appsv1beta1.Deployment {
c := &deploymentConfig{
func WithEnvFromSecretKey(varName, secret, key string) podTemplateOption {
return func(c *podTemplateConfig) {
c.envVars = append(c.envVars, corev1.EnvVar{
Name: varName,
ValueFrom: &corev1.EnvVarSource{
SecretKeyRef: &corev1.SecretKeySelector{
LocalObjectReference: corev1.LocalObjectReference{
Name: secret,
},
Key: key,
},
},
})
}
}
func Deployment(namespace string, opts ...podTemplateOption) *appsv1beta1.Deployment {
c := &podTemplateConfig{
image: "gcr.io/heptio-images/ark:latest",
}
pkg/install/resources.go
+16
View File
@@ -1,3 +1,19 @@
/*
Copyright 2018 the Heptio Ark contributors.
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 install
import (