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vmsizes.go
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vmsizes.go
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package platform
import (
"context"
"fmt"
"sort"
"github.com/samber/lo"
"github.com/spf13/cobra"
"github.com/superfly/flyctl/api"
"github.com/superfly/flyctl/client"
"github.com/superfly/flyctl/internal/command"
"github.com/superfly/flyctl/internal/config"
"github.com/superfly/flyctl/internal/flag"
"github.com/superfly/flyctl/internal/render"
"github.com/superfly/flyctl/iostreams"
)
func newVMSizes() (cmd *cobra.Command) {
const (
long = `View a list of VM sizes which can be used with the FLYCTL SCALE VM command
`
short = "List VM Sizes"
)
cmd = command.New("vm-sizes", short, long, runVMSizes,
command.RequireSession,
)
cmd.Args = cobra.NoArgs
flag.Add(cmd, flag.JSONOutput())
return
}
func runVMSizes(ctx context.Context) error {
client := client.FromContext(ctx).API()
sizes, err := client.PlatformVMSizes(ctx)
if err != nil {
return fmt.Errorf("failed retrieving sizes: %w", err)
}
out := iostreams.FromContext(ctx).Out
if config.FromContext(ctx).JSONOutput {
return render.JSON(out, sizes)
}
var rows [][]string
for _, size := range sizes {
rows = append(rows, []string{
size.Name,
cores(int(size.CPUCores)),
memory(size.MemoryMB),
})
}
render.Table(out, "Nomad platform", rows, "Name", "CPU Cores", "Memory")
return runMachineVMSizes(ctx)
}
func runMachineVMSizes(ctx context.Context) error {
out := iostreams.FromContext(ctx).Out
type preset struct {
guest *api.MachineGuest
strings []string
}
sortedPresets := lo.MapToSlice(api.MachinePresets, func(key string, value *api.MachineGuest) preset {
arr := []string{
key,
cores(value.CPUs),
memory(value.MemoryMB),
}
return preset{value, arr}
})
sort.Slice(sortedPresets, func(i, j int) bool {
a := sortedPresets[i].guest
b := sortedPresets[j].guest
if a.CPUs == b.CPUs {
return a.MemoryMB < b.MemoryMB
}
return a.CPUs < b.CPUs
})
// Filter and display shared cpu sizes.
shared := lo.FilterMap(sortedPresets, func(p preset, _ int) ([]string, bool) {
if p.guest.CPUKind == "shared" {
return p.strings, true
}
return nil, false
})
err := render.Table(out, "Machines platform", shared, "Name", "CPU Cores", "Memory")
if err != nil {
return fmt.Errorf("failed to render shared vm-sizes: %s", err)
}
// Filter and display performance cpu sizes.
performance := lo.FilterMap(sortedPresets, func(p preset, _ int) ([]string, bool) {
if p.guest.CPUKind == "performance" {
return p.strings, true
}
return nil, false
})
return render.Table(out, "", performance, "Name", "CPU Cores", "Memory")
}
func cores(cores int) string {
if cores < 1.0 {
return fmt.Sprintf("%d", cores)
}
return fmt.Sprintf("%d", cores)
}
func memory(size int) string {
if size < 1024 {
return fmt.Sprintf("%d MB", size)
}
return fmt.Sprintf("%d GB", size/1024)
}