func (c *BootstrapCommand) Init(args []string) (err error) {
if err := c.EnvCommandBase.EnsureEnvName(); err != nil {
return err
}
if len(c.Series) > 0 && !c.UploadTools {
return fmt.Errorf("--upload-series requires --upload-tools")
}
if len(c.seriesOld) > 0 && !c.UploadTools {
return fmt.Errorf("--series requires --upload-tools")
}
if len(c.Series) > 0 && len(c.seriesOld) > 0 {
return fmt.Errorf("--upload-series and --series can't be used together")
}
if len(c.seriesOld) > 0 {
c.Series = c.seriesOld
}
// Parse the placement directive. Bootstrap currently only
// supports provider-specific placement directives.
if c.Placement != "" {
_, err = instance.ParsePlacement(c.Placement)
if err != instance.ErrPlacementScopeMissing {
// We only support unscoped placement directives for bootstrap.
return fmt.Errorf("unsupported bootstrap placement directive %q", c.Placement)
}
}
return cmd.CheckEmpty(args)
}
func (c *AddMachineCommand) Init(args []string) error {
if err := c.EnvCommandBase.EnsureEnvName(); err != nil {
return err
}
if c.Constraints.Container != nil {
return fmt.Errorf("container constraint %q not allowed when adding a machine", *c.Constraints.Container)
}
placement, err := cmd.ZeroOrOneArgs(args)
if err != nil {
return err
}
c.Placement, err = instance.ParsePlacement(placement)
if err == instance.ErrPlacementScopeMissing {
placement = c.EnvironName() + ":" + placement
c.Placement, err = instance.ParsePlacement(placement)
}
if err != nil {
return err
}
return nil
}
func (s *PlacementSuite) TestParsePlacement(c *gc.C) {
parsePlacementTests := []struct {
arg string
expectScope, expectDirective string
err string
}{{
arg: "",
}, {
arg: "0",
expectScope: instance.MachineScope,
expectDirective: "0",
}, {
arg: "0/lxc/0",
expectScope: instance.MachineScope,
expectDirective: "0/lxc/0",
}, {
arg: "#:x",
err: `invalid value "x" for "#" scope: expected machine-id`,
}, {
arg: "lxc:x",
err: `invalid value "x" for "lxc" scope: expected machine-id`,
}, {
arg: "kvm:x",
err: `invalid value "x" for "kvm" scope: expected machine-id`,
}, {
arg: "kvm:123",
expectScope: string(instance.KVM),
expectDirective: "123",
}, {
arg: "lxc",
expectScope: string(instance.LXC),
}, {
arg: "non-standard",
err: "placement scope missing",
}, {
arg: ":non-standard",
err: "placement scope missing",
}, {
arg: "non:standard",
expectScope: "non",
expectDirective: "standard",
}}
for i, t := range parsePlacementTests {
c.Logf("test %d: %s", i, t.arg)
p, err := instance.ParsePlacement(t.arg)
if t.err != "" {
c.Assert(err, gc.ErrorMatches, t.err)
} else {
c.Assert(err, gc.IsNil)
}
if t.expectScope == "" && t.expectDirective == "" {
c.Assert(p, gc.IsNil)
} else {
c.Assert(p, gc.DeepEquals, &instance.Placement{
Scope: t.expectScope,
Directive: t.expectDirective,
})
}
}
}