forked from hashicorp/nomad
/
memory.go
43 lines (35 loc) · 1008 Bytes
/
memory.go
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package fingerprint
import (
"fmt"
"log"
"github.com/hashicorp/nomad/client/config"
"github.com/hashicorp/nomad/nomad/structs"
"github.com/shirou/gopsutil/mem"
)
// MemoryFingerprint is used to fingerprint the available memory on the node
type MemoryFingerprint struct {
StaticFingerprinter
logger *log.Logger
}
// NewMemoryFingerprint is used to create a Memory fingerprint
func NewMemoryFingerprint(logger *log.Logger) Fingerprint {
f := &MemoryFingerprint{
logger: logger,
}
return f
}
func (f *MemoryFingerprint) Fingerprint(cfg *config.Config, node *structs.Node) (bool, error) {
memInfo, err := mem.VirtualMemory()
if err != nil {
f.logger.Printf("[WARN] Error reading memory information: %s", err)
return false, err
}
if memInfo.Total > 0 {
node.Attributes["memory.totalbytes"] = fmt.Sprintf("%d", memInfo.Total)
if node.Resources == nil {
node.Resources = &structs.Resources{}
}
node.Resources.MemoryMB = int(memInfo.Total / 1024 / 1024)
}
return true, nil
}