package libpodruntime import ( "fmt" "os" "path/filepath" "github.com/containers/storage" "github.com/pkg/errors" "github.com/projectatomic/libpod/libpod" "github.com/projectatomic/libpod/pkg/rootless" "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 rootlessRuntime, err := libpod.GetRootlessRuntimeDir() if err != nil { return opts, err } opts.RunRoot = filepath.Join(rootlessRuntime, "run") dataDir := os.Getenv("XDG_DATA_HOME") if dataDir == "" { home := os.Getenv("HOME") if home == "" { return opts, fmt.Errorf("neither XDG_DATA_HOME nor HOME was set non-empty") } // runc doesn't like symlinks in the rootfs path, and at least // on CoreOS /home is a symlink to /var/home, so resolve any symlink. resolvedHome, err := filepath.EvalSymlinks(home) if err != nil { return opts, errors.Wrapf(err, "cannot resolve %s", home) } dataDir = filepath.Join(resolvedHome, ".local", "share") } opts.GraphRoot = filepath.Join(dataDir, "containers", "storage") opts.GraphDriverName = "vfs" return opts, nil } func GetDefaultStoreOptions() (storage.StoreOptions, error) { storageOpts := storage.DefaultStoreOptions if rootless.IsRootless() { var err error storageOpts, err = GetRootlessStorageOpts() if err != nil { return storageOpts, err } storageConf := filepath.Join(os.Getenv("HOME"), ".config/containers/storage.conf") if _, err := os.Stat(storageConf); err == nil { storage.ReloadConfigurationFile(storageConf, &storageOpts) } } 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("namespace") { options = append(options, libpod.WithNamespace(c.GlobalString("namespace"))) } 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...) }