containerd/cmd/ctr/commands/version/version.go
Michael Crosby 9f0bc2b53f Add UUID and server info to introspection
Closes #1862

This adds a new rpc to the introspection service to provide server
information with a generated UUID that is done on demand and the os and
arch of the server.

ctr output:

```bash
> sudo ctr version

Client:
  Version:  v1.2.0-802-g57821695.m
  Revision: 578216950de9c1c188708369e2a31ac6c494dfee.m

Server:
  Version:  v1.2.0-802-g57821695.m
  Revision: 578216950de9c1c188708369e2a31ac6c494dfee.m
  UUID: 92e982a9-f13e-4a2c-9032-e69b27fed454
  OS: linux
  ARCH: amd64
```

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2019-08-06 14:40:48 +00:00

63 lines
1.7 KiB
Go

/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package version
import (
"fmt"
"os"
"github.com/containerd/containerd/cmd/ctr/commands"
"github.com/containerd/containerd/version"
"github.com/urfave/cli"
)
// Command is a cli command to output the client and containerd server version
var Command = cli.Command{
Name: "version",
Usage: "print the client and server versions",
Action: func(context *cli.Context) error {
fmt.Println("Client:")
fmt.Println(" Version: ", version.Version)
fmt.Println(" Revision:", version.Revision)
fmt.Println("")
client, ctx, cancel, err := commands.NewClient(context)
if err != nil {
return err
}
defer cancel()
v, err := client.Version(ctx)
if err != nil {
return err
}
fmt.Println("Server:")
fmt.Println(" Version: ", v.Version)
fmt.Println(" Revision:", v.Revision)
di, err := client.Server(ctx)
if err != nil {
return err
}
fmt.Println(" UUID:", di.UUID)
if v.Version != version.Version {
fmt.Fprintln(os.Stderr, "WARNING: version mismatch")
}
if v.Revision != version.Revision {
fmt.Fprintln(os.Stderr, "WARNING: revision mismatch")
}
return nil
},
}