dependencies

Documentation

Index

• Variables
• type Dependencies
• type RealDependencies
  • func (r *RealDependencies) Run(cmd string, args ...string) (err error)
  • func (r *RealDependencies) RunOrFail(cmd string, args ...string)
  • func (r *RealDependencies) RunQuietlyAndIgnore(cmd string, args ...string)
• type StdoutStubDependencies
  • func (s *StdoutStubDependencies) Run(cmd string, args ...string) error
  • func (s *StdoutStubDependencies) RunOrFail(cmd string, args ...string)
  • func (s *StdoutStubDependencies) RunQuietlyAndIgnore(cmd string, args ...string)
• type XTablesExittype

Variables

var XTablesCmds = sets.New(
	constants.IPTABLES,
	constants.IP6TABLES,
	constants.IPTABLESRESTORE,
	constants.IP6TABLESRESTORE,
	constants.IPTABLESSAVE,
	constants.IP6TABLESSAVE,
)

XTablesCmds is the set of all the xtables-related commands currently supported.

Types

type Dependencies

type Dependencies interface {
	// RunOrFail runs a command and panics, if it fails
	RunOrFail(cmd string, args ...string)
	// Run runs a command
	Run(cmd string, args ...string) error
	// RunQuietlyAndIgnore runs a command quietly and ignores errors
	RunQuietlyAndIgnore(cmd string, args ...string)
}

Dependencies is used as abstraction for the commands used from the operating system

type RealDependencies

type RealDependencies struct {
	NetworkNamespace string
	CNIMode          bool
}

RealDependencies implementation of interface Dependencies, which is used in production

func (*RealDependencies) Run

func (r *RealDependencies) Run(cmd string, args ...string) (err error)

Run runs a command

func (*RealDependencies) RunOrFail

func (r *RealDependencies) RunOrFail(cmd string, args ...string)

RunOrFail runs a command and exits with an error message, if it fails

func (*RealDependencies) RunQuietlyAndIgnore

func (r *RealDependencies) RunQuietlyAndIgnore(cmd string, args ...string)

RunQuietlyAndIgnore runs a command quietly and ignores errors

type StdoutStubDependencies

type StdoutStubDependencies struct{}

StdoutStubDependencies implementation of interface Dependencies, which is used for testing

func (*StdoutStubDependencies) Run

func (s *StdoutStubDependencies) Run(cmd string, args ...string) error

Run runs a command

func (*StdoutStubDependencies) RunOrFail

func (s *StdoutStubDependencies) RunOrFail(cmd string, args ...string)

RunOrFail runs a command and panics, if it fails

func (*StdoutStubDependencies) RunQuietlyAndIgnore

func (s *StdoutStubDependencies) RunQuietlyAndIgnore(cmd string, args ...string)

RunQuietlyAndIgnore runs a command quietly and ignores errors

type XTablesExittype

type XTablesExittype int

XTablesExittype is the exit type of xtables commands.

const (
	// XTablesOtherProblem indicates a problem of other type in xtables
	XTablesOtherProblem XTablesExittype = iota + 1
	// XTablesParameterProblem indicates a parameter problem in xtables
	XTablesParameterProblem
	// XTablesVersionProblem indicates a version problem in xtables
	XTablesVersionProblem
	// XTablesResourceProblem indicates a resource problem in xtables
	XTablesResourceProblem
)

Learn from `xtables_exittype` of iptables. `XTF_ONLY_ONCE`, `XTF_NO_INVERT`, `XTF_BAD_VALUE`, `XTF_ONE_ACTION` will eventually turned out to be a parameter problem with explicit error message. Thus, we do not need to support them here.