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package libpodruntime
import (
"fmt"
"os"
"path/filepath"
"github.com/containers/storage"
"github.com/projectatomic/libpod/libpod"
"github.com/urfave/cli"
)
// GetRuntime generates a new libpod runtime configured by command line options
func GetRuntime(c *cli.Context) (*libpod.Runtime, error) {
storageOpts, err := GetDefaultStoreOptions()
if err != nil {
return nil, err
}
return GetRuntimeWithStorageOpts(c, &storageOpts)
}
func GetRootlessStorageOpts() (storage.StoreOptions, error) {
var opts storage.StoreOptions
opts.RunRoot = filepath.Join(libpod.GetRootlessRuntimeDir(), "run")
dataDir := os.Getenv("XDG_DATA_DIR")
if dataDir != "" {
opts.GraphRoot = filepath.Join(dataDir, "containers", "storage")
} else {
home := os.Getenv("HOME")
if home == "" {
return opts, fmt.Errorf("HOME not specified")
}
opts.GraphRoot = filepath.Join(home, ".containers", "storage")
}
opts.GraphDriverName = "vfs"
return opts, nil
}
func GetDefaultStoreOptions() (storage.StoreOptions, error) {
storageOpts := storage.DefaultStoreOptions
if os.Getuid() != 0 {
var err error
storageOpts, err = GetRootlessStorageOpts()
if err != nil {
return storageOpts, err
}
}
return storageOpts, nil
}
// GetRuntime generates a new libpod runtime configured by command line options
func GetRuntimeWithStorageOpts(c *cli.Context, storageOpts *storage.StoreOptions) (*libpod.Runtime, error) {
options := []libpod.RuntimeOption{}
if c.GlobalIsSet("root") {
storageOpts.GraphRoot = c.GlobalString("root")
}
if c.GlobalIsSet("runroot") {
storageOpts.RunRoot = c.GlobalString("runroot")
}
if c.GlobalIsSet("storage-driver") {
storageOpts.GraphDriverName = c.GlobalString("storage-driver")
}
if c.GlobalIsSet("storage-opt") {
storageOpts.GraphDriverOptions = c.GlobalStringSlice("storage-opt")
}
options = append(options, libpod.WithStorageConfig(*storageOpts))
// TODO CLI flags for image config?
// TODO CLI flag for signature policy?
if c.GlobalIsSet("runtime") {
options = append(options, libpod.WithOCIRuntime(c.GlobalString("runtime")))
}
if c.GlobalIsSet("conmon") {
options = append(options, libpod.WithConmonPath(c.GlobalString("conmon")))
}
if c.GlobalIsSet("tmpdir") {
options = append(options, libpod.WithTmpDir(c.GlobalString("tmpdir")))
}
if c.GlobalIsSet("cgroup-manager") {
options = append(options, libpod.WithCgroupManager(c.GlobalString("cgroup-manager")))
}
// TODO flag to set libpod static dir?
// TODO flag to set libpod tmp dir?
if c.GlobalIsSet("cni-config-dir") {
options = append(options, libpod.WithCNIConfigDir(c.GlobalString("cni-config-dir")))
}
if c.GlobalIsSet("default-mounts-file") {
options = append(options, libpod.WithDefaultMountsFile(c.GlobalString("default-mounts-file")))
}
options = append(options, libpod.WithHooksDir(c.GlobalString("hooks-dir-path"), c.GlobalIsSet("hooks-dir-path")))
// TODO flag to set CNI plugins dir?
return libpod.NewRuntime(options...)
}
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