316 lines
8.2 KiB
Go
316 lines
8.2 KiB
Go
/*
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Copyright the Velero contributors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package install
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import (
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"fmt"
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"strings"
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"time"
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appsv1 "k8s.io/api/apps/v1"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"github.com/vmware-tanzu/velero/internal/velero"
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"github.com/vmware-tanzu/velero/pkg/builder"
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)
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type podTemplateOption func(*podTemplateConfig)
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type podTemplateConfig struct {
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image string
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envVars []corev1.EnvVar
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restoreOnly bool
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annotations map[string]string
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labels map[string]string
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resources corev1.ResourceRequirements
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withSecret bool
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defaultRepoMaintenanceFrequency time.Duration
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garbageCollectionFrequency time.Duration
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plugins []string
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features []string
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defaultVolumesToFsBackup bool
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serviceAccountName string
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uploaderType string
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}
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func WithImage(image string) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.image = image
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}
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}
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func WithAnnotations(annotations map[string]string) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.annotations = annotations
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}
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}
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func WithLabels(labels map[string]string) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.labels = labels
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}
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}
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func WithEnvFromSecretKey(varName, secret, key string) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.envVars = append(c.envVars, corev1.EnvVar{
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Name: varName,
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ValueFrom: &corev1.EnvVarSource{
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SecretKeyRef: &corev1.SecretKeySelector{
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LocalObjectReference: corev1.LocalObjectReference{
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Name: secret,
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},
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Key: key,
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},
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},
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})
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}
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}
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func WithSecret(secretPresent bool) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.withSecret = secretPresent
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}
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}
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func WithRestoreOnly() podTemplateOption {
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return func(c *podTemplateConfig) {
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c.restoreOnly = true
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}
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}
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func WithResources(resources corev1.ResourceRequirements) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.resources = resources
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}
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}
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func WithDefaultRepoMaintenanceFrequency(val time.Duration) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.defaultRepoMaintenanceFrequency = val
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}
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}
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func WithGarbageCollectionFrequency(val time.Duration) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.garbageCollectionFrequency = val
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}
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}
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func WithPlugins(plugins []string) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.plugins = plugins
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}
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}
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func WithFeatures(features []string) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.features = features
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}
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}
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func WithUploaderType(t string) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.uploaderType = t
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}
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}
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func WithDefaultVolumesToFsBackup() podTemplateOption {
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return func(c *podTemplateConfig) {
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c.defaultVolumesToFsBackup = true
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}
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}
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func WithServiceAccountName(sa string) podTemplateOption {
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return func(c *podTemplateConfig) {
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c.serviceAccountName = sa
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}
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}
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func Deployment(namespace string, opts ...podTemplateOption) *appsv1.Deployment {
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// TODO: Add support for server args
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c := &podTemplateConfig{
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image: velero.DefaultVeleroImage(),
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}
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for _, opt := range opts {
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opt(c)
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}
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pullPolicy := corev1.PullAlways
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imageParts := strings.Split(c.image, ":")
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if len(imageParts) == 2 && imageParts[1] != "latest" {
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pullPolicy = corev1.PullIfNotPresent
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}
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args := []string{"server"}
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if len(c.features) > 0 {
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args = append(args, fmt.Sprintf("--features=%s", strings.Join(c.features, ",")))
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}
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if c.defaultVolumesToFsBackup {
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args = append(args, "--default-volumes-to-fs-backup=true")
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}
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if len(c.uploaderType) > 0 {
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args = append(args, fmt.Sprintf("--uploader-type=%s", c.uploaderType))
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}
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deployment := &appsv1.Deployment{
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ObjectMeta: objectMeta(namespace, "velero"),
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TypeMeta: metav1.TypeMeta{
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Kind: "Deployment",
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APIVersion: appsv1.SchemeGroupVersion.String(),
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},
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Spec: appsv1.DeploymentSpec{
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Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"deploy": "velero"}},
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Template: corev1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: podLabels(c.labels, map[string]string{"deploy": "velero"}),
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Annotations: podAnnotations(c.annotations),
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},
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Spec: corev1.PodSpec{
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RestartPolicy: corev1.RestartPolicyAlways,
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ServiceAccountName: c.serviceAccountName,
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Containers: []corev1.Container{
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{
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Name: "velero",
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Image: c.image,
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Ports: containerPorts(),
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ImagePullPolicy: pullPolicy,
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Command: []string{
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"/velero",
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},
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Args: args,
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VolumeMounts: []corev1.VolumeMount{
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{
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Name: "plugins",
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MountPath: "/plugins",
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},
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{
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Name: "scratch",
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MountPath: "/scratch",
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},
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},
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Env: []corev1.EnvVar{
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{
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Name: "VELERO_SCRATCH_DIR",
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Value: "/scratch",
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},
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{
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Name: "VELERO_NAMESPACE",
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ValueFrom: &corev1.EnvVarSource{
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FieldRef: &corev1.ObjectFieldSelector{
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FieldPath: "metadata.namespace",
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},
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},
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},
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{
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Name: "LD_LIBRARY_PATH",
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Value: "/plugins",
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},
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},
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Resources: c.resources,
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},
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},
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Volumes: []corev1.Volume{
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{
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Name: "plugins",
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VolumeSource: corev1.VolumeSource{
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EmptyDir: &corev1.EmptyDirVolumeSource{},
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},
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},
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{
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Name: "scratch",
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VolumeSource: corev1.VolumeSource{
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EmptyDir: new(corev1.EmptyDirVolumeSource),
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},
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},
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},
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},
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},
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},
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}
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if c.withSecret {
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deployment.Spec.Template.Spec.Volumes = append(
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deployment.Spec.Template.Spec.Volumes,
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corev1.Volume{
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Name: "cloud-credentials",
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VolumeSource: corev1.VolumeSource{
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Secret: &corev1.SecretVolumeSource{
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SecretName: "cloud-credentials",
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},
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},
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},
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)
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deployment.Spec.Template.Spec.Containers[0].VolumeMounts = append(
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deployment.Spec.Template.Spec.Containers[0].VolumeMounts,
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corev1.VolumeMount{
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Name: "cloud-credentials",
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MountPath: "/credentials",
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},
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)
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deployment.Spec.Template.Spec.Containers[0].Env = append(deployment.Spec.Template.Spec.Containers[0].Env, []corev1.EnvVar{
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{
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Name: "GOOGLE_APPLICATION_CREDENTIALS",
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Value: "/credentials/cloud",
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},
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{
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Name: "AWS_SHARED_CREDENTIALS_FILE",
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Value: "/credentials/cloud",
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},
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{
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Name: "AZURE_CREDENTIALS_FILE",
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Value: "/credentials/cloud",
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},
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{
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Name: "ALIBABA_CLOUD_CREDENTIALS_FILE",
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Value: "/credentials/cloud",
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},
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}...)
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}
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deployment.Spec.Template.Spec.Containers[0].Env = append(deployment.Spec.Template.Spec.Containers[0].Env, c.envVars...)
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if c.restoreOnly {
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deployment.Spec.Template.Spec.Containers[0].Args = append(deployment.Spec.Template.Spec.Containers[0].Args, "--restore-only")
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}
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if c.defaultRepoMaintenanceFrequency > 0 {
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deployment.Spec.Template.Spec.Containers[0].Args = append(deployment.Spec.Template.Spec.Containers[0].Args, fmt.Sprintf("--default-repo-maintain-frequency=%v", c.defaultRepoMaintenanceFrequency))
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}
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if c.garbageCollectionFrequency > 0 {
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deployment.Spec.Template.Spec.Containers[0].Args = append(deployment.Spec.Template.Spec.Containers[0].Args, fmt.Sprintf("--garbage-collection-frequency=%v", c.garbageCollectionFrequency))
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}
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if len(c.plugins) > 0 {
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for _, image := range c.plugins {
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container := *builder.ForPluginContainer(image, pullPolicy).Result()
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deployment.Spec.Template.Spec.InitContainers = append(deployment.Spec.Template.Spec.InitContainers, container)
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}
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}
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return deployment
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}
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