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flag_processing.go
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flag_processing.go
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package driver
import (
"fmt"
"strings"
"github.com/docker/machine/libmachine/drivers"
"github.com/docker/machine/libmachine/log"
"github.com/hetznercloud/hcloud-go/v2/hcloud"
)
var legacyDefaultImages = [...]string{
defaultImage,
"ubuntu-18.04",
"ubuntu-16.04",
"debian-9",
}
func isDefaultImageName(imageName string) bool {
for _, defaultImage := range legacyDefaultImages {
if imageName == defaultImage {
return true
}
}
return false
}
func (d *Driver) setImageArch(arch string) error {
switch arch {
case "":
d.ImageArch = emptyImageArchitecture
case string(hcloud.ArchitectureARM):
d.ImageArch = hcloud.ArchitectureARM
case string(hcloud.ArchitectureX86):
d.ImageArch = hcloud.ArchitectureX86
default:
return fmt.Errorf("unknown architecture %v", arch)
}
return nil
}
func (d *Driver) verifyImageFlags() error {
if d.ImageID != 0 && d.Image != "" && !isDefaultImageName(d.Image) /* support legacy behaviour */ {
return d.flagFailure("--%v and --%v are mutually exclusive", flagImage, flagImageID)
} else if d.ImageID != 0 && d.ImageArch != "" {
return d.flagFailure("--%v and --%v are mutually exclusive", flagImageArch, flagImageID)
} else if d.ImageID == 0 && d.Image == "" {
d.Image = defaultImage
}
return nil
}
func (d *Driver) verifyNetworkFlags() error {
if d.DisablePublic4 && d.DisablePublic6 && !d.UsePrivateNetwork {
return d.flagFailure("--%v must be used if public networking is disabled (hint: implicitly set by --%v)",
flagUsePrivateNetwork, flagDisablePublic)
}
if d.DisablePublic4 && d.PrimaryIPv4 != "" {
return d.flagFailure("--%v and --%v are mutually exclusive", flagPrimary4, flagDisablePublic4)
}
if d.DisablePublic6 && d.PrimaryIPv6 != "" {
return d.flagFailure("--%v and --%v are mutually exclusive", flagPrimary6, flagDisablePublic6)
}
return nil
}
func (d *Driver) deprecatedBooleanFlag(opts drivers.DriverOptions, flag, deprecatedFlag string) bool {
if opts.Bool(deprecatedFlag) {
log.Warnf("--%v is DEPRECATED FOR REMOVAL, use --%v instead", deprecatedFlag, flag)
d.usesDfr = true
return true
}
return opts.Bool(flag)
}
func (d *Driver) setUserDataFlags(opts drivers.DriverOptions) error {
userData := opts.String(flagUserData)
userDataFile := opts.String(flagUserDataFile)
if opts.Bool(legacyFlagUserDataFromFile) {
if userDataFile != "" {
return d.flagFailure("--%v and --%v are mutually exclusive", flagUserDataFile, legacyFlagUserDataFromFile)
}
log.Warnf("--%v is DEPRECATED FOR REMOVAL, pass '--%v \"%v\"'", legacyFlagUserDataFromFile, flagUserDataFile, userData)
d.usesDfr = true
d.userDataFile = userData
return nil
}
d.userData = userData
d.userDataFile = userDataFile
if d.userData != "" && d.userDataFile != "" {
return d.flagFailure("--%v and --%v are mutually exclusive", flagUserData, flagUserDataFile)
}
return nil
}
func (d *Driver) setLabelsFromFlags(opts drivers.DriverOptions) error {
d.ServerLabels = make(map[string]string)
for _, label := range opts.StringSlice(flagServerLabel) {
split := strings.SplitN(label, "=", 2)
if len(split) != 2 {
return d.flagFailure("server label %v is not in key=value format", label)
}
d.ServerLabels[split[0]] = split[1]
}
d.keyLabels = make(map[string]string)
for _, label := range opts.StringSlice(flagKeyLabel) {
split := strings.SplitN(label, "=", 2)
if len(split) != 2 {
return fmt.Errorf("key label %v is not in key=value format", label)
}
d.keyLabels[split[0]] = split[1]
}
return nil
}