utils

Documentation

Index

• Constants
• Variables
• func AddSourceToImage(imagesSet map[string]map[string]bool, image string, sources ...string)
• func AppendFileLine(fileName string, line string) error
• func Base64(s string) string
• func ConstructRegistry(image, registryOverride string) string
• func DecodeBase64(s string) (string, error)
• func DefaultRunCommandFunc(p string, i io.Reader, o io.Writer, args ...string) error
• func DeleteIfExist(name string) error
• func EnsureDirExists(directory string) error
• func EnsureSemverValid(v string) (string, error)
• func GetAbsPath(dir string) (string, error)
• func GetImageName(image string) string
• func GetProjectName(image string) string
• func GetRegistryName(image string) string
• func IsDirEmpty(name string) (bool, error)
• func ReadUsernamePasswd() (username, passwd string, err error)
• func ReplaceProjectName(image, project string) string
• func SaveJson(data interface{}, fileName string) error
• func SaveSlice(fileName string, data []string) error
• func SemverCompare(a, b string) (int, error)
• func SemverMajorEqual(a, b string) bool
• func SemverMajorMinorEqual(a, b string) bool
• func Sha256Sum(s string) string
• func ToObj(data interface{}, into interface{}) error
• type RunCmdFuncType

Constants

const (
	HangarGitHubURL         = "https://github.com/cnrancher/hangar"
	DockerLoginURL          = "https://hub.docker.com/v2/users/login/"
	DockerHubRegistry       = "docker.io"
	DockerConfigFile        = ".docker/config.json"
	SavedImageListFile      = "saved-images-list.json"
	CacheImageDirectory     = "saved-image-cache"
	CacheCloneRepoDirectory = "charts-repo-cache"
	ETC_SSL_FILE            = "/etc/ssl/certs/ca-certificates.crt"
	MAX_WORKER_NUM          = 20
	MIN_WORKER_NUM          = 1
)

Variables

var (
	EnvDestUsername   = os.Getenv("DEST_USERNAME")
	EnvDestPassword   = os.Getenv("DEST_PASSWORD")
	EnvDestRegistry   = os.Getenv("DEST_REGISTRY")
	EnvSourceUsername = os.Getenv("SOURCE_USERNAME")
	EnvSourcePassword = os.Getenv("SOURCE_PASSWORD")
	EnvSourceRegistry = os.Getenv("SOURCE_REGISTRY")
)

environment variables of source and destination registry url, username and password

var (
	ErrReadJsonFailed       = errors.New("failed to read value from json")
	ErrSkopeoNotFound       = errors.New("skopeo not found")
	ErrDockerNotFound       = errors.New("docker not found")
	ErrLoginFailed          = errors.New("login failed")
	ErrNoAvailableImage     = errors.New("no image available for specified arch & OS list")
	ErrInvalidParameter     = errors.New("invalid parameter")
	ErrInvalidMediaType     = errors.New("invalid media type")
	ErrInvalidSchemaVersion = errors.New("invalid schema version")
	ErrNilPointer           = errors.New("nil pointer")
	ErrDockerBuildxNotFound = errors.New("docker buildx not found")
	ErrDirNotEmpty          = errors.New("directory is not empty")
	ErrVersionIsEmpty       = errors.New("version is empty string")
)

var (
	Version   = "v1.6.1"
	GitCommit = ""
)

Functions

func AddSourceToImage

func AddSourceToImage(
	imagesSet map[string]map[string]bool,
	image string,
	sources ...string,
)

AddSourceToImage adds image into map[image][source]bool

func AppendFileLine

func AppendFileLine(fileName string, line string) error

func Base64

func Base64(s string) string

func ConstructRegistry

func ConstructRegistry(image, registryOverride string) string

ConstructRegistry will re-construct the image url:

If `registryOverride` is empty string, example:

nginx --> docker.io/nginx (add docker.io prefix)
reg.io/nginx --> reg.io/nginx (nothing changed)
reg.io/user/nginx --> reg.io/user/nginx (nothing changed)

If `registryOverride` set, example:

nginx --> ${registryOverride}/nginx (add ${registryOverride} prefix)
reg.io/nginx --> ${registryOverride}/nginx (set registry ${registryOverride})
reg.io/user/nginx --> ${registryOverride}/user/nginx (same as above)

func DecodeBase64

func DecodeBase64(s string) (string, error)

func DefaultRunCommandFunc

func DefaultRunCommandFunc(p string, i io.Reader, o io.Writer, args ...string) error

DefaultRunCommandFunc executes the command and specifies the stdin and stdout in parameters

func DeleteIfExist

func DeleteIfExist(name string) error

func EnsureDirExists

func EnsureDirExists(directory string) error

func EnsureSemverValid

func EnsureSemverValid(v string) (string, error)

func GetAbsPath

func GetAbsPath(dir string) (string, error)

func GetImageName

func GetImageName(image string) string

GetRegistryName gets the image name, example:

nginx:latest -> nginx
reg.io/nginx:latest -> nginx
library/nginx:latest -> nginx
reg.io/library/nginx -> nginx

func GetProjectName

func GetProjectName(image string) string

GetProjectName gets the project name of the image, example:

nginx -> ""
docker.io/nginx -> ""
library/nginx -> library
docker.io/library/nginx -> library

func GetRegistryName

func GetRegistryName(image string) string

GetRegistryName gets the registry name of the image, example:

nginx -> docker.io
reg.io/nginx -> reg.io
library/nginx -> docker.io
reg.io/library/nginx -> reg.io

func IsDirEmpty

func IsDirEmpty(name string) (bool, error)

func ReadUsernamePasswd

func ReadUsernamePasswd() (username, passwd string, err error)

func ReplaceProjectName

func ReplaceProjectName(image, project string) string

ReplaceProjectName will replace the image project name:

If `project` is empty string, the project name will be removed:

nginx --> nginx (nothing changed)
reg.io/nginx --> reg.io/nginx (nothing changed)
user/nginx --> nginx (remove project name)
reg.io/user/nginx --> reg.io/nginx (remove project name)

If `project` set, example:

nginx --> ${project}/nginx (add project name)
user/nginx --> ${project}/nginx (replace project name)
reg.io/nginx --> reg.io/${project}/nginx
reg.io/user/nginx --> reg.io/${project}/nginx

func SaveJson

func SaveJson(data interface{}, fileName string) error

func SaveSlice

func SaveSlice(fileName string, data []string) error

func SemverCompare

func SemverCompare(a, b string) (int, error)

SemverCompare compares two semvers

func SemverMajorEqual

func SemverMajorEqual(a, b string) bool

func SemverMajorMinorEqual

func SemverMajorMinorEqual(a, b string) bool

func Sha256Sum

func Sha256Sum(s string) string

func ToObj

func ToObj(data interface{}, into interface{}) error

Types

type RunCmdFuncType

type RunCmdFuncType func(name string, in io.Reader, out io.Writer, args ...string) error

RunCmdFuncType defines the type of the function to execute command