github.com/mhilton/juju-juju@v0.0.0-20150901100907-a94dd2c73455/apiserver/backups/create.go (about)

     1  // Copyright 2014 Canonical Ltd.
     2  // Licensed under the AGPLv3, see LICENCE file for details.
     3  
     4  package backups
     5  
     6  import (
     7  	"github.com/juju/errors"
     8  	"github.com/juju/replicaset"
     9  
    10  	"github.com/juju/juju/apiserver/params"
    11  	"github.com/juju/juju/state/backups"
    12  )
    13  
    14  var waitUntilReady = replicaset.WaitUntilReady
    15  
    16  // Create is the API method that requests juju to create a new backup
    17  // of its state.  It returns the metadata for that backup.
    18  func (a *API) Create(args params.BackupsCreateArgs) (p params.BackupsMetadataResult, err error) {
    19  	backupsMethods, closer := newBackups(a.st)
    20  	defer closer.Close()
    21  
    22  	session := a.st.MongoSession().Copy()
    23  	defer session.Close()
    24  
    25  	// Don't go if HA isn't ready.
    26  	err = waitUntilReady(session, 60)
    27  	if err != nil {
    28  		return p, errors.Annotatef(err, "HA not ready; try again later")
    29  	}
    30  
    31  	mgoInfo := a.st.MongoConnectionInfo()
    32  	dbInfo, err := backups.NewDBInfo(mgoInfo, session)
    33  	if err != nil {
    34  		return p, errors.Trace(err)
    35  	}
    36  
    37  	meta, err := backups.NewMetadataState(a.st, a.machineID)
    38  	if err != nil {
    39  		return p, errors.Trace(err)
    40  	}
    41  	meta.Notes = args.Notes
    42  
    43  	err = backupsMethods.Create(meta, a.paths, dbInfo)
    44  	if err != nil {
    45  		return p, errors.Trace(err)
    46  	}
    47  
    48  	return ResultFromMetadata(meta), nil
    49  }