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moby--moby/cli/command/node/promote.go
Vincent Demeester f151c297eb
Add some unit tests to the node and swarm cli code
Start work on adding unit tests to our cli code in order to have to
write less costly integration test.

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
2017-01-09 18:30:15 +01:00

36 lines
997 B
Go

package node
import (
"fmt"
"github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/cli"
"github.com/docker/docker/cli/command"
"github.com/spf13/cobra"
)
func newPromoteCommand(dockerCli command.Cli) *cobra.Command {
return &cobra.Command{
Use: "promote NODE [NODE...]",
Short: "Promote one or more nodes to manager in the swarm",
Args: cli.RequiresMinArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
return runPromote(dockerCli, args)
},
}
}
func runPromote(dockerCli command.Cli, nodes []string) error {
promote := func(node *swarm.Node) error {
if node.Spec.Role == swarm.NodeRoleManager {
fmt.Fprintf(dockerCli.Out(), "Node %s is already a manager.\n", node.ID)
return errNoRoleChange
}
node.Spec.Role = swarm.NodeRoleManager
return nil
}
success := func(nodeID string) {
fmt.Fprintf(dockerCli.Out(), "Node %s promoted to a manager in the swarm.\n", nodeID)
}
return updateNodes(dockerCli, nodes, promote, success)
}