Golang types.Hash类代码示例

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本文整理汇总了Golang中github.com/coreos/rkt/Godeps/_workspace/src/github.com/appc/spec/schema/types.Hash类的典型用法代码示例。如果您正苦于以下问题：Golang Hash类的具体用法？Golang Hash怎么用？Golang Hash使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Hash类的18个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: CreateDepListFromImageID

// CreateDepListFromImageID returns the flat dependency tree of the image with
// the provided imageID
func CreateDepListFromImageID(imageID types.Hash, ap ACIRegistry) (Images, error) {
	key, err := ap.ResolveKey(imageID.String())
	if err != nil {
		return nil, err
	}
	return createDepList(key, ap)
}

开发者ID:matomesc，项目名称:rkt，代码行数:9，代码来源:resolve.go

示例2: prepareAppImage

// prepareAppImage renders and verifies the tree cache of the app image that
// corresponds to the given hash.
// When useOverlay is false, it attempts to render and expand the app image
// TODO(jonboulle): tighten up the Hash type here; currently it is partially-populated (i.e. half-length sha512)
func prepareAppImage(cfg PrepareConfig, img types.Hash, cdir string, useOverlay bool) (*schema.ImageManifest, error) {
	log.Println("Loading image", img.String())

	if useOverlay {
		if err := cfg.Store.RenderTreeStore(img.String(), false); err != nil {
			return nil, fmt.Errorf("error rendering tree image: %v", err)
		}
		if err := cfg.Store.CheckTreeStore(img.String()); err != nil {
			log.Printf("Warning: tree cache is in a bad state. Rebuilding...")
			if err := cfg.Store.RenderTreeStore(img.String(), true); err != nil {
				return nil, fmt.Errorf("error rendering tree image: %v", err)
			}
		}
	} else {
		ad := common.AppImagePath(cdir, img)
		err := os.MkdirAll(ad, 0755)
		if err != nil {
			return nil, fmt.Errorf("error creating image directory: %v", err)
		}

		if err := aci.RenderACIWithImageID(img, ad, cfg.Store); err != nil {
			return nil, fmt.Errorf("error rendering ACI: %v", err)
		}
	}

	am, err := cfg.Store.GetImageManifest(img.String())
	if err != nil {
		return nil, fmt.Errorf("error getting the manifest: %v", err)
	}

	return am, nil
}

开发者ID:danieltaborda，项目名称:rkt，代码行数:36，代码来源:run.go

示例3: overlayRender

// overlayRender renders the image that corresponds to the given hash using the
// overlay filesystem.
// It writes the manifest in the specified directory and mounts an overlay
// filesystem from the cached tree of the image as rootfs.
func overlayRender(cfg RunConfig, img types.Hash, cdir string, dest string) error {
	if err := writeManifest(cfg.CommonConfig, img, dest); err != nil {
		return err
	}

	destRootfs := path.Join(dest, "rootfs")
	if err := os.MkdirAll(destRootfs, 0755); err != nil {
		return err
	}

	cachedTreePath := cfg.Store.GetTreeStoreRootFS(img.String())

	overlayDir := path.Join(cdir, "overlay", img.String())
	if err := os.MkdirAll(overlayDir, 0755); err != nil {
		return err
	}

	upperDir := path.Join(overlayDir, "upper")
	if err := os.MkdirAll(upperDir, 0755); err != nil {
		return err
	}
	workDir := path.Join(overlayDir, "work")
	if err := os.MkdirAll(workDir, 0755); err != nil {
		return err
	}

	opts := fmt.Sprintf("lowerdir=%s,upperdir=%s,workdir=%s", cachedTreePath, upperDir, workDir)
	opts = label.FormatMountLabel(opts, cfg.MountLabel)
	if err := syscall.Mount("overlay", destRootfs, "overlay", 0, opts); err != nil {
		return fmt.Errorf("error mounting: %v", err)
	}

	return nil
}

开发者ID:krieg，项目名称:rkt，代码行数:38，代码来源:run.go

示例4: writeManifest

// writeManifest takes an img ID and writes the corresponding manifest in dest
func writeManifest(cfg CommonConfig, img types.Hash, dest string) error {
	mb, err := cfg.Store.GetImageManifestJSON(img.String())
	if err != nil {
		return err
	}

	debug("Writing image manifest")
	if err := ioutil.WriteFile(filepath.Join(dest, "manifest"), mb, defaultRegularFilePerm); err != nil {
		return fmt.Errorf("error writing image manifest: %v", err)
	}

	return nil
}

开发者ID:matomesc，项目名称:rkt，代码行数:14，代码来源:run.go

示例5: prepareStage1Image

// prepareStage1Image renders and verifies tree cache of the given hash
// when using overlay.
// When useOverlay is false, it attempts to render and expand the stage1.
func prepareStage1Image(cfg PrepareConfig, img types.Hash, cdir string, useOverlay bool) error {
	s1 := common.Stage1ImagePath(cdir)
	if err := os.MkdirAll(s1, 0755); err != nil {
		return fmt.Errorf("error creating stage1 directory: %v", err)
	}

	if err := cfg.Store.RenderTreeStore(img.String(), false); err != nil {
		return fmt.Errorf("error rendering tree image: %v", err)
	}
	if err := cfg.Store.CheckTreeStore(img.String()); err != nil {
		log.Printf("Warning: tree cache is in a bad state. Rebuilding...")
		if err := cfg.Store.RenderTreeStore(img.String(), true); err != nil {
			return fmt.Errorf("error rendering tree image: %v", err)
		}
	}

	if !useOverlay {
		if err := writeManifest(cfg.CommonConfig, img, s1); err != nil {
			return fmt.Errorf("error writing manifest: %v", err)
		}

		destRootfs := filepath.Join(s1, "rootfs")
		cachedTreePath := cfg.Store.GetTreeStoreRootFS(img.String())
		if err := fileutil.CopyTree(cachedTreePath, destRootfs); err != nil {
			return fmt.Errorf("error rendering ACI: %v", err)
		}
	}
	return nil
}

开发者ID:krieg，项目名称:rkt，代码行数:32，代码来源:run.go

示例6: prepareAppImage

// prepareAppImage renders and verifies the tree cache of the app image that
// corresponds to the given app name.
// When useOverlay is false, it attempts to render and expand the app image
func prepareAppImage(cfg PrepareConfig, appName types.ACName, img types.Hash, cdir string, useOverlay bool) error {
	log.Println("Loading image", img.String())

	if useOverlay {
		if cfg.PrivateUsers.Shift > 0 {
			return fmt.Errorf("cannot use both overlay and user namespace: not implemented yet. (Try --no-overlay)")
		}
		if err := cfg.Store.RenderTreeStore(img.String(), false); err != nil {
			return fmt.Errorf("error rendering tree image: %v", err)
		}
		if err := cfg.Store.CheckTreeStore(img.String()); err != nil {
			log.Printf("Warning: tree cache is in a bad state. Rebuilding...")
			if err := cfg.Store.RenderTreeStore(img.String(), true); err != nil {
				return fmt.Errorf("error rendering tree image: %v", err)
			}
		}
	} else {
		ad := common.AppPath(cdir, appName)
		err := os.MkdirAll(ad, 0755)
		if err != nil {
			return fmt.Errorf("error creating image directory: %v", err)
		}

		if err := aci.RenderACIWithImageID(img, ad, cfg.Store, cfg.PrivateUsers); err != nil {
			return fmt.Errorf("error rendering ACI: %v", err)
		}
	}
	return nil
}

开发者ID:samarvin，项目名称:rkt，代码行数:32，代码来源:run.go

示例7: prepareAppImage

// prepareAppImage renders and verifies the tree cache of the app image that
// corresponds to the given app name.
// When useOverlay is false, it attempts to render and expand the app image
func prepareAppImage(cfg PrepareConfig, appName types.ACName, img types.Hash, cdir string, useOverlay bool) error {
	log.Println("Loading image", img.String())

	am, err := cfg.Store.GetImageManifest(img.String())
	if err != nil {
		return fmt.Errorf("error getting the manifest: %v", err)
	}

	if _, hasOS := am.Labels.Get("os"); !hasOS {
		return fmt.Errorf("missing os label in the image manifest")
	}
	if _, hasArch := am.Labels.Get("arch"); !hasArch {
		return fmt.Errorf("missing arch label in the image manifest")
	}

	if err := types.IsValidOSArch(am.Labels.ToMap(), ValidOSArch); err != nil {
		return err
	}

	appInfoDir := common.AppInfoPath(cdir, appName)
	if err := os.MkdirAll(appInfoDir, 0755); err != nil {
		return fmt.Errorf("error creating apps info directory: %v", err)
	}

	if useOverlay {
		if cfg.PrivateUsers.Shift > 0 {
			return fmt.Errorf("cannot use both overlay and user namespace: not implemented yet. (Try --no-overlay)")
		}
		treeStoreID, err := cfg.Store.RenderTreeStore(img.String(), false)
		if err != nil {
			return fmt.Errorf("error rendering tree image: %v", err)
		}
		if err := cfg.Store.CheckTreeStore(treeStoreID); err != nil {
			log.Printf("Warning: tree cache is in a bad state: %v. Rebuilding...", err)
			var err error
			if treeStoreID, err = cfg.Store.RenderTreeStore(img.String(), true); err != nil {
				return fmt.Errorf("error rendering tree image: %v", err)
			}
		}

		if err := ioutil.WriteFile(common.AppTreeStoreIDPath(cdir, appName), []byte(treeStoreID), 0700); err != nil {
			return fmt.Errorf("error writing app treeStoreID: %v", err)
		}
	} else {
		ad := common.AppPath(cdir, appName)
		err := os.MkdirAll(ad, 0755)
		if err != nil {
			return fmt.Errorf("error creating image directory: %v", err)
		}

		if err := aci.RenderACIWithImageID(img, ad, cfg.Store, cfg.PrivateUsers); err != nil {
			return fmt.Errorf("error rendering ACI: %v", err)
		}
	}
	if err := writeManifest(cfg.CommonConfig, img, appInfoDir); err != nil {
		return err
	}
	return nil
}

开发者ID:NeilW，项目名称:rkt，代码行数:62，代码来源:run.go

示例8: writeManifest

// writeManifest takes an img ID and writes the corresponding manifest in dest
func writeManifest(cfg CommonConfig, img types.Hash, dest string) error {
	manifest, err := cfg.Store.GetImageManifest(img.String())
	if err != nil {
		return err
	}

	mb, err := json.Marshal(manifest)
	if err != nil {
		return fmt.Errorf("error marshalling image manifest: %v", err)
	}

	log.Printf("Writing image manifest")
	if err := ioutil.WriteFile(filepath.Join(dest, "manifest"), mb, 0700); err != nil {
		return fmt.Errorf("error writing image manifest: %v", err)
	}

	return nil
}

开发者ID:krieg，项目名称:rkt，代码行数:19，代码来源:run.go

示例9: prepareStage1Image

// prepareStage1Image renders and verifies tree cache of the given hash
// when using overlay.
// When useOverlay is false, it attempts to render and expand the stage1.
func prepareStage1Image(cfg PrepareConfig, img types.Hash, cdir string, useOverlay bool) error {
	s1 := common.Stage1ImagePath(cdir)
	if err := os.MkdirAll(s1, defaultRegularDirPerm); err != nil {
		return fmt.Errorf("error creating stage1 directory: %v", err)
	}

	treeStoreID, _, err := cfg.Store.RenderTreeStore(img.String(), false)
	if err != nil {
		return fmt.Errorf("error rendering tree image: %v", err)
	}

	if !cfg.SkipTreeStoreCheck {
		hash, err := cfg.Store.CheckTreeStore(treeStoreID)
		if err != nil {
			log.Printf("Warning: tree cache is in a bad state: %v. Rebuilding...", err)
			var err error
			treeStoreID, hash, err = cfg.Store.RenderTreeStore(img.String(), true)
			if err != nil {
				return fmt.Errorf("error rendering tree image: %v", err)
			}
		}
		cfg.CommonConfig.RootHash = hash
	}

	if err := writeManifest(*cfg.CommonConfig, img, s1); err != nil {
		return fmt.Errorf("error writing manifest: %v", err)
	}

	if !useOverlay {
		destRootfs := filepath.Join(s1, "rootfs")
		cachedTreePath := cfg.Store.GetTreeStoreRootFS(treeStoreID)
		if err := fileutil.CopyTree(cachedTreePath, destRootfs, cfg.PrivateUsers); err != nil {
			return fmt.Errorf("error rendering ACI: %v", err)
		}
	}

	fn := path.Join(cdir, common.Stage1TreeStoreIDFilename)
	if err := ioutil.WriteFile(fn, []byte(treeStoreID), defaultRegularFilePerm); err != nil {
		return fmt.Errorf("error writing stage1 treeStoreID: %v", err)
	}
	return nil
}

开发者ID:matomesc，项目名称:rkt，代码行数:45，代码来源:run.go

示例10: Enter

// Enter enters the pod/app by exec()ing the stage1's /enter similar to /init
// /enter can expect to have its CWD set to the app root.
// imageID and command are supplied to /enter on argv followed by any arguments.
// stage1Path is the path of the stage1 rootfs
func Enter(cdir string, podPID int, imageID *types.Hash, stage1Path string, cmdline []string) error {
	if err := os.Chdir(cdir); err != nil {
		return fmt.Errorf("error changing to dir: %v", err)
	}

	id := types.ShortHash(imageID.String())

	ep, err := getStage1Entrypoint(cdir, enterEntrypoint)
	if err != nil {
		return fmt.Errorf("error determining entrypoint: %v", err)
	}

	argv := []string{filepath.Join(stage1Path, ep)}
	argv = append(argv, strconv.Itoa(podPID))
	argv = append(argv, id)
	argv = append(argv, cmdline...)
	if err := syscall.Exec(argv[0], argv, os.Environ()); err != nil {
		return fmt.Errorf("error execing enter: %v", err)
	}

	// never reached
	return nil
}

开发者ID:balagopalraj，项目名称:clearlinux，代码行数:27，代码来源:enter.go

示例11: overlayRender

// overlayRender renders the image that corresponds to the given hash using the
// overlay filesystem.
// It writes the manifest in the specified directory and mounts an overlay
// filesystem from the cached tree of the image as rootfs.
func overlayRender(cfg RunConfig, img types.Hash, cdir string, dest string) error {
	manifest, err := cfg.Store.GetImageManifest(img.String())
	if err != nil {
		return err
	}

	mb, err := json.Marshal(manifest)
	if err != nil {
		return fmt.Errorf("error marshalling image manifest: %v", err)
	}

	log.Printf("Writing image manifest")
	if err := ioutil.WriteFile(filepath.Join(dest, "manifest"), mb, 0700); err != nil {
		return fmt.Errorf("error writing pod manifest: %v", err)
	}

	destRootfs := path.Join(dest, "rootfs")
	if err := os.MkdirAll(destRootfs, 0755); err != nil {
		return err
	}

	cachedTreePath := cfg.Store.GetTreeStoreRootFS(img.String())

	overlayDir := path.Join(cdir, "overlay", img.String())
	if err := os.MkdirAll(overlayDir, 0755); err != nil {
		return err
	}

	upperDir := path.Join(overlayDir, "upper")
	if err := os.MkdirAll(upperDir, 0755); err != nil {
		return err
	}
	workDir := path.Join(overlayDir, "work")
	if err := os.MkdirAll(workDir, 0755); err != nil {
		return err
	}

	opts := fmt.Sprintf("lowerdir=%s,upperdir=%s,workdir=%s", cachedTreePath, upperDir, workDir)
	if err := syscall.Mount("overlay", destRootfs, "overlay", 0, opts); err != nil {
		return fmt.Errorf("error mounting: %v", err)
	}

	return nil
}

开发者ID:balagopalraj，项目名称:clearlinux，代码行数:48，代码来源:run.go

示例12: prepareStage1Image

// prepareStage1Image renders and verifies tree cache of the given hash
// when using overlay.
// When useOverlay is false, it attempts to render and expand the stage1.
func prepareStage1Image(cfg PrepareConfig, img types.Hash, cdir string, useOverlay bool) error {
	s1 := common.Stage1ImagePath(cdir)
	if err := os.MkdirAll(s1, 0755); err != nil {
		return fmt.Errorf("error creating stage1 directory: %v", err)
	}

	if err := cfg.Store.RenderTreeStore(img.String(), false); err != nil {
		return fmt.Errorf("error rendering tree image: %v", err)
	}
	if err := cfg.Store.CheckTreeStore(img.String()); err != nil {
		log.Printf("Warning: tree cache is in a bad state. Rebuilding...")
		if err := cfg.Store.RenderTreeStore(img.String(), true); err != nil {
			return fmt.Errorf("error rendering tree image: %v", err)
		}
	}

	if !useOverlay {
		if err := aci.RenderACIWithImageID(img, s1, cfg.Store); err != nil {
			return fmt.Errorf("error rendering ACI: %v", err)
		}
	}
	return nil
}

开发者ID:balagopalraj，项目名称:clearlinux，代码行数:26，代码来源:run.go

示例13: AppImagePath

// AppImagePath returns the path where an app image (i.e. unpacked ACI) is rooted (i.e.
// where its contents are extracted during stage0), based on the app image ID.
func AppImagePath(root string, imageID types.Hash) string {
	return filepath.Join(AppImagesPath(root), types.ShortHash(imageID.String()))
}

开发者ID:fdserr，项目名称:rkt，代码行数:5，代码来源:common.go

示例14: ServiceUnitName

// ServiceUnitName returns a systemd service unit name for the given imageID
func ServiceUnitName(imageID types.Hash) string {
	return types.ShortHash(imageID.String()) + ".service"
}

开发者ID:danieltaborda，项目名称:rkt，代码行数:4，代码来源:path.go

示例15: RelEnvFilePath

// RelEnvFilePath returns the path to the environment file for the given imageID
// relative to the pod's root
func RelEnvFilePath(imageID types.Hash) string {
	return filepath.Join(envDir, types.ShortHash(imageID.String()))
}

开发者ID:danieltaborda，项目名称:rkt，代码行数:5，代码来源:path.go

示例16: SocketUnitName

// SocketUnitName returns a systemd socket unit name for the given imageID
func SocketUnitName(imageID types.Hash) string {
	return imageID.String() + ".socket"
}

开发者ID:danieltaborda，项目名称:rkt，代码行数:4，代码来源:path.go

示例17: RelAppImagePath

// RelAppImagePath returns the path of an application image relative to the
// stage1 chroot
func RelAppImagePath(imageID types.Hash) string {
	return filepath.Join(stage2Dir, types.ShortHash(imageID.String()))
}

开发者ID:fdserr，项目名称:rkt，代码行数:5，代码来源:common.go

示例18: prepareAppImage

// prepareAppImage renders and verifies the tree cache of the app image that
// corresponds to the given app name.
// When useOverlay is false, it attempts to render and expand the app image
func prepareAppImage(cfg PrepareConfig, appName types.ACName, img types.Hash, cdir string, useOverlay bool) error {
	debug("Loading image %s", img.String())

	am, err := cfg.Store.GetImageManifest(img.String())
	if err != nil {
		return fmt.Errorf("error getting the manifest: %v", err)
	}

	if _, hasOS := am.Labels.Get("os"); !hasOS {
		return fmt.Errorf("missing os label in the image manifest")
	}
	if _, hasArch := am.Labels.Get("arch"); !hasArch {
		return fmt.Errorf("missing arch label in the image manifest")
	}

	if err := types.IsValidOSArch(am.Labels.ToMap(), ValidOSArch); err != nil {
		return err
	}

	appInfoDir := common.AppInfoPath(cdir, appName)
	if err := os.MkdirAll(appInfoDir, defaultRegularDirPerm); err != nil {
		return fmt.Errorf("error creating apps info directory: %v", err)
	}

	if useOverlay {
		if cfg.PrivateUsers.Shift > 0 {
			return fmt.Errorf("cannot use both overlay and user namespace: not implemented yet. (Try --no-overlay)")
		}
		treeStoreID, _, err := cfg.Store.RenderTreeStore(img.String(), false)
		if err != nil {
			return fmt.Errorf("error rendering tree image: %v", err)
		}

		if !cfg.SkipTreeStoreCheck {
			hash, err := cfg.Store.CheckTreeStore(treeStoreID)
			if err != nil {
				log.Printf("Warning: tree cache is in a bad state: %v. Rebuilding...", err)
				var err error
				treeStoreID, hash, err = cfg.Store.RenderTreeStore(img.String(), true)
				if err != nil {
					return fmt.Errorf("error rendering tree image: %v", err)
				}
			}
			cfg.CommonConfig.RootHash = hash
		}

		if err := ioutil.WriteFile(common.AppTreeStoreIDPath(cdir, appName), []byte(treeStoreID), defaultRegularFilePerm); err != nil {
			return fmt.Errorf("error writing app treeStoreID: %v", err)
		}
	} else {
		ad := common.AppPath(cdir, appName)
		err := os.MkdirAll(ad, defaultRegularDirPerm)
		if err != nil {
			return fmt.Errorf("error creating image directory: %v", err)
		}

		shiftedUid, shiftedGid, err := cfg.PrivateUsers.ShiftRange(uint32(os.Getuid()), uint32(os.Getgid()))
		if err != nil {
			return fmt.Errorf("error getting uid, gid: %v", err)
		}

		if err := os.Chown(ad, int(shiftedUid), int(shiftedGid)); err != nil {
			return fmt.Errorf("error shifting app %q's stage2 dir: %v", appName, err)
		}

		if err := aci.RenderACIWithImageID(img, ad, cfg.Store, cfg.PrivateUsers); err != nil {
			return fmt.Errorf("error rendering ACI: %v", err)
		}
	}
	if err := writeManifest(*cfg.CommonConfig, img, appInfoDir); err != nil {
		return err
	}
	return nil
}

开发者ID:matomesc，项目名称:rkt，代码行数:77，代码来源:run.go

注：本文中的github.com/coreos/rkt/Godeps/_workspace/src/github.com/appc/spec/schema/types.Hash类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。