internal/commands/admin/cluster/cluster.go

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// the Apache License, Version 2.0 (the "License"); you may
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//
//     http://www.apache.org/licenses/LICENSE-2.0
//
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// specific language governing permissions and limitations
// under the License.

package cluster

import (
	"github.com/urfave/cli/v2"

	"github.com/apache/skywalking-cli/pkg/admin/preflight"
	"github.com/apache/skywalking-cli/pkg/admin/status"
	"github.com/apache/skywalking-cli/pkg/display"
	"github.com/apache/skywalking-cli/pkg/display/displayable"
)

var Command = &cli.Command{
	Name:  "cluster",
	Usage: "Inspect the OAP cluster from the admin-server `status` module",
	Subcommands: []*cli.Command{
		nodesCommand,
	},
}

var nodesCommand = &cli.Command{
	Name:  "nodes",
	Usage: "List the OAP cluster peer nodes (GET /status/cluster/nodes)",
	UsageText: `List the OAP cluster peer nodes as seen by the cluster coordinator.

Examples:
1. List cluster nodes:
$ swctl admin cluster nodes`,
	Action: func(ctx *cli.Context) error {
		nodes, err := status.ClusterNodesQuery(ctx.Context)
		if err != nil {
			return preflight.Explain(ctx.Context, err, preflight.ModuleStatus, "SW_STATUS")
		}
		return display.Display(ctx.Context, &displayable.Displayable{Data: nodes})
	},
}