// ServiceSetCharm sets the charm for a given service.
func (c *Client) ServiceSetCharm(args params.ServiceSetCharm) error {
service, err := c.api.state.Service(args.ServiceName)
if err != nil {
return err
}
curl, err := charm.ParseURL(args.CharmUrl)
if err != nil {
return err
}
if curl.Schema != "cs" {
return fmt.Errorf(`charm url has unsupported schema %q`, curl.Schema)
}
if curl.Revision < 0 {
return fmt.Errorf("charm url must include revision")
}
conn, err := juju.NewConnFromState(c.api.state)
if err != nil {
return err
}
ch, err := conn.PutCharm(curl, CharmStore, false)
if err != nil {
return err
}
return service.SetCharm(ch, args.Force)
}
// AddServiceUnits adds a given number of units to a service.
func AddServiceUnits(state *state.State, args params.AddServiceUnits) ([]*state.Unit, error) {
conn, err := juju.NewConnFromState(state)
if err != nil {
return nil, err
}
service, err := state.Service(args.ServiceName)
if err != nil {
return nil, err
}
if args.NumUnits < 1 {
return nil, errors.New("must add at least one unit")
}
if args.NumUnits > 1 && args.ToMachineSpec != "" {
return nil, errors.New("cannot use --num-units with --to")
}
return conn.AddUnits(service, args.NumUnits, args.ToMachineSpec)
}
// serviceSetCharm sets the charm for the given service.
func serviceSetCharm(state *state.State, service *state.Service, url string, force bool) error {
curl, err := charm.ParseURL(url)
if err != nil {
return err
}
if curl.Schema != "cs" {
return fmt.Errorf(`charm url has unsupported schema %q`, curl.Schema)
}
if curl.Revision < 0 {
return fmt.Errorf("charm url must include revision")
}
conn, err := juju.NewConnFromState(state)
if err != nil {
return err
}
ch, err := conn.PutCharm(curl, CharmStore, false)
if err != nil {
return err
}
return service.SetCharm(ch, force)
}
// ServiceDeploy fetches the charm from the charm store and deploys it. Local
// charms are not supported.
func (c *Client) ServiceDeploy(args params.ServiceDeploy) error {
curl, err := charm.ParseURL(args.CharmUrl)
if err != nil {
return err
}
if curl.Schema != "cs" {
return fmt.Errorf(`charm url has unsupported schema %q`, curl.Schema)
}
if curl.Revision < 0 {
return fmt.Errorf("charm url must include revision")
}
conn, err := juju.NewConnFromState(c.api.state)
if err != nil {
return err
}
ch, err := conn.PutCharm(curl, CharmStore, false)
if err != nil {
return err
}
var settings charm.Settings
if len(args.ConfigYAML) > 0 {
settings, err = ch.Config().ParseSettingsYAML([]byte(args.ConfigYAML), args.ServiceName)
} else if len(args.Config) > 0 {
settings, err = ch.Config().ParseSettingsStrings(args.Config)
}
if err != nil {
return err
}
_, err = conn.DeployService(juju.DeployServiceParams{
ServiceName: args.ServiceName,
Charm: ch,
NumUnits: args.NumUnits,
ConfigSettings: settings,
Constraints: args.Constraints,
ToMachineSpec: args.ToMachineSpec,
})
return err
}
func (s *ConnSuite) TestNewConnFromState(c *C) {
conn, err := juju.NewConnFromState(s.conn.State)
c.Assert(err, IsNil)
c.Assert(conn.Environ.Name(), Equals, "erewhemos")
}