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infrakit: Move default VM directory to .infrakit/hyperkit-vms

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Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This commit is contained in:
Rolf Neugebauer 2017-03-01 17:13:17 -08:00
parent 95fa38f879
commit d1ad02e079
2 changed files with 19 additions and 13 deletions
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10
tools/infrakit.hyperkit/README.md
View File

@ -4,10 +4,10 @@ This is a Hyper/Kit Moby instance plugin for infrakit. The instance
plugin is capable to start/manage several hyperkit instances with with
different configurations and Moby configurations.
The plugin keeps state in a local directory (default `./vms`) where
each instance keeps some state in a sub-directory. The VM state
directory can be specified at the kernel command line using the
`--vm-dir` option.
The plugin keeps state in a local directory (default
`.infrakit/hyperkit-vms`) where each instance keeps some state in a
sub-directory. The VM state directory can be specified at the kernel
command line using the `--vm-dir` option.
## Building
@ -20,7 +20,7 @@ make
To play round with the plugin, simply follow the [infrakit tutorial](https://github.com/docker/infrakit/blob/master/docs/tutorial.md) and replace the file instance plugin with:
```
./build/infrakit-instance-hyperkit --vm-lib ./vmlib
./build/infrakit-instance-hyperkit
```
where `./vmlib` contains a sub-directory named `default` with a `vmlinuz64` and `initrd.img` image.

22
tools/infrakit.hyperkit/cmd/main.go
View File

@ -4,7 +4,9 @@ import (
"encoding/json"
"fmt"
"os"
"os/user"
"path"
"path/filepath"
log "github.com/Sirupsen/logrus"
"github.com/spf13/cobra"
@ -40,14 +42,9 @@ func main() {
Use: os.Args[0],
Short: "HyperKit instance plugin",
}
defaultVMDir, err := os.Getwd()
if err != nil {
log.Error(err)
os.Exit(1)
}
defaultVMDir = path.Join(defaultVMDir, "vms")
homeDir := os.Getenv("HOME")
defaultVPNKitSock = path.Join(homeDir, defaultVPNKitSock)
defaultVMDir := filepath.Join(getHome(), ".infrakit/hyperkit-vms")
defaultVPNKitSock = path.Join(getHome(), defaultVPNKitSock)
name := cmd.Flags().String("name", "instance-hyperkit", "Plugin name to advertise for discovery")
logLevel := cmd.Flags().Int("log", cli.DefaultLogLevel, "Logging level. 0 is least verbose. Max is 5")
@ -70,6 +67,8 @@ func main() {
return err
}
os.MkdirAll(*vmDir, os.ModePerm)
cli.SetLogLevel(*logLevel)
cli.RunPlugin(*name,
instance_plugin.PluginServer(NewHyperKitPlugin(*vmDir, *hyperkit, *vpnkitSock, thyper, tkern)),
@ -105,3 +104,10 @@ func main() {
os.Exit(1)
}
}
func getHome() string {
if usr, err := user.Current(); err == nil {
return usr.HomeDir
}
return os.Getenv("HOME")
}