gopkg.in/hashicorp/nomad.v0@v0.11.8/nomad/periodic_endpoint.go (about)

     1  package nomad
     2  
     3  import (
     4  	"fmt"
     5  	"time"
     6  
     7  	metrics "github.com/armon/go-metrics"
     8  	log "github.com/hashicorp/go-hclog"
     9  	memdb "github.com/hashicorp/go-memdb"
    10  
    11  	"github.com/hashicorp/nomad/acl"
    12  	"github.com/hashicorp/nomad/nomad/structs"
    13  )
    14  
    15  // Periodic endpoint is used for periodic job interactions
    16  type Periodic struct {
    17  	srv    *Server
    18  	logger log.Logger
    19  }
    20  
    21  // Force is used to force a new instance of a periodic job
    22  func (p *Periodic) Force(args *structs.PeriodicForceRequest, reply *structs.PeriodicForceResponse) error {
    23  	if done, err := p.srv.forward("Periodic.Force", args, args, reply); done {
    24  		return err
    25  	}
    26  	defer metrics.MeasureSince([]string{"nomad", "periodic", "force"}, time.Now())
    27  
    28  	// Check for write-job permissions
    29  	if aclObj, err := p.srv.ResolveToken(args.AuthToken); err != nil {
    30  		return err
    31  	} else if aclObj != nil && !aclObj.AllowNsOp(args.RequestNamespace(), acl.NamespaceCapabilitySubmitJob) {
    32  		return structs.ErrPermissionDenied
    33  	}
    34  
    35  	// Validate the arguments
    36  	if args.JobID == "" {
    37  		return fmt.Errorf("missing job ID for evaluation")
    38  	}
    39  
    40  	// Lookup the job
    41  	snap, err := p.srv.fsm.State().Snapshot()
    42  	if err != nil {
    43  		return err
    44  	}
    45  
    46  	ws := memdb.NewWatchSet()
    47  	job, err := snap.JobByID(ws, args.RequestNamespace(), args.JobID)
    48  	if err != nil {
    49  		return err
    50  	}
    51  	if job == nil {
    52  		return fmt.Errorf("job not found")
    53  	}
    54  
    55  	if !job.IsPeriodic() {
    56  		return fmt.Errorf("can't force launch non-periodic job")
    57  	}
    58  
    59  	// Force run the job.
    60  	eval, err := p.srv.periodicDispatcher.ForceRun(args.RequestNamespace(), job.ID)
    61  	if err != nil {
    62  		return fmt.Errorf("force launch for job %q failed: %v", job.ID, err)
    63  	}
    64  
    65  	reply.EvalID = eval.ID
    66  	reply.EvalCreateIndex = eval.CreateIndex
    67  	reply.Index = eval.CreateIndex
    68  	return nil
    69  }