99 lines
2.2 KiB
Go
99 lines
2.2 KiB
Go
package nomad
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import (
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"time"
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"github.com/armon/go-metrics"
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"github.com/hashicorp/nomad/nomad/structs"
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"github.com/hashicorp/nomad/nomad/watch"
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)
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// Alloc endpoint is used for manipulating allocations
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type Alloc struct {
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srv *Server
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}
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// List is used to list the allocations in the system
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func (a *Alloc) List(args *structs.AllocListRequest, reply *structs.AllocListResponse) error {
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if done, err := a.srv.forward("Alloc.List", args, args, reply); done {
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return err
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}
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defer metrics.MeasureSince([]string{"nomad", "alloc", "list"}, time.Now())
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// Setup the blocking query
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opts := blockingOptions{
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queryOpts: &args.QueryOptions,
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queryMeta: &reply.QueryMeta,
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watch: watch.NewItems(watch.Item{Table: "allocs"}),
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run: func() error {
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// Capture all the allocations
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snap, err := a.srv.fsm.State().Snapshot()
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if err != nil {
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return err
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}
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iter, err := snap.Allocs()
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if err != nil {
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return err
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}
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var allocs []*structs.AllocListStub
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for {
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raw := iter.Next()
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if raw == nil {
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break
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}
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alloc := raw.(*structs.Allocation)
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allocs = append(allocs, alloc.Stub())
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}
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reply.Allocations = allocs
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// Use the last index that affected the jobs table
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index, err := snap.Index("allocs")
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if err != nil {
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return err
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}
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reply.Index = index
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// Set the query response
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a.srv.setQueryMeta(&reply.QueryMeta)
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return nil
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}}
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return a.srv.blockingRPC(&opts)
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}
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// GetAlloc is used to lookup a particular allocation
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func (a *Alloc) GetAlloc(args *structs.AllocSpecificRequest,
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reply *structs.SingleAllocResponse) error {
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if done, err := a.srv.forward("Alloc.GetAlloc", args, args, reply); done {
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return err
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}
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defer metrics.MeasureSince([]string{"nomad", "alloc", "get_alloc"}, time.Now())
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// Lookup the allocation
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snap, err := a.srv.fsm.State().Snapshot()
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if err != nil {
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return err
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}
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out, err := snap.AllocByID(args.AllocID)
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if err != nil {
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return err
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}
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// Setup the output
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if out != nil {
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reply.Alloc = out
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reply.Index = out.ModifyIndex
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} else {
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// Use the last index that affected the nodes table
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index, err := snap.Index("allocs")
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if err != nil {
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return err
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}
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reply.Index = index
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}
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// Set the query response
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a.srv.setQueryMeta(&reply.QueryMeta)
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return nil
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}
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