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rollback.go
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/
rollback.go
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package cmd
import (
"fmt"
"k8s.io/kubernetes/pkg/kubectl"
"k8s.io/kubernetes/pkg/runtime"
"github.com/openshift/origin/pkg/client"
deployapi "github.com/openshift/origin/pkg/deploy/api"
)
func NewDeploymentConfigRollbacker(oc client.Interface) kubectl.Rollbacker {
return &DeploymentConfigRollbacker{dn: oc}
}
// DeploymentConfigRollbacker is an implementation of the kubectl Rollbacker interface
// for deployment configs.
type DeploymentConfigRollbacker struct {
dn client.DeploymentConfigsNamespacer
}
var _ kubectl.Rollbacker = &DeploymentConfigRollbacker{}
// Rollback the provided deployment config to a specific revision. If revision is zero, we will
// rollback to the previous deployment.
func (r *DeploymentConfigRollbacker) Rollback(namespace, name string, updatedAnnotations map[string]string, toRevision int64, obj runtime.Object) (string, error) {
config, ok := obj.(*deployapi.DeploymentConfig)
if !ok {
return "", fmt.Errorf("passed object is not a deployment config: %#v", obj)
}
if config.Spec.Paused {
return "", fmt.Errorf("cannot rollback a paused config; resume it first with '%[2]s rollout resume dc/%[1]s' and try again", config.Name, name)
}
rollback := &deployapi.DeploymentConfigRollback{
Name: config.Name,
UpdatedAnnotations: updatedAnnotations,
Spec: deployapi.DeploymentConfigRollbackSpec{
Revision: toRevision,
IncludeTemplate: true,
},
}
rolledback, err := r.dn.DeploymentConfigs(config.Namespace).Rollback(rollback)
if err != nil {
return "", err
}
_, err = r.dn.DeploymentConfigs(config.Namespace).Update(rolledback)
if err != nil {
return "", err
}
return "rolled back", nil
}