config

Documentation

Index

• Variables
• type Config
  • func (c *Config) Copy() *Config
  • func (c *Config) Read(id string) string
  • func (c *Config) ReadBool(id string) (bool, error)
  • func (c *Config) ReadBoolDefault(id string, defaultValue bool) bool
  • func (c *Config) ReadDefault(id string, defaultValue string) string
  • func (c *Config) ReadStringListToMap(key string) map[string]struct{}
  • func (c *Config) ReadStringListToMapDefault(key, defaultValue string) map[string]struct{}
• type RPCHandler

Variables

var (
	// DefaultEnvBlacklist is the default set of environment variables that are
	// filtered when passing the environment variables of the host to a task.
	DefaultEnvBlacklist = strings.Join([]string{
		"CONSUL_TOKEN",
		"VAULT_TOKEN",
		"ATLAS_TOKEN",
		"AWS_ACCESS_KEY_ID", "AWS_SECRET_ACCESS_KEY", "AWS_SESSION_TOKEN",
		"GOOGLE_APPLICATION_CREDENTIALS",
	}, ",")

	// DefaulUserBlacklist is the default set of users that tasks are not
	// allowed to run as when using a driver in "user.checked_drivers"
	DefaultUserBlacklist = strings.Join([]string{
		"root",
		"Administrator",
	}, ",")

	// DefaultUserCheckedDrivers is the set of drivers we apply the user
	// blacklist onto. For virtualized drivers it often doesn't make sense to
	// make this stipulation so by default they are ignored.
	DefaultUserCheckedDrivers = strings.Join([]string{
		"exec",
		"qemu",
		"java",
	}, ",")
)

Types

type Config

type Config struct {
	// DevMode controls if we are in a development mode which
	// avoids persistent storage.
	DevMode bool

	// StateDir is where we store our state
	StateDir string

	// AllocDir is where we store data for allocations
	AllocDir string

	// LogOutput is the destination for logs
	LogOutput io.Writer

	// Region is the clients region
	Region string

	// Network interface to be used in network fingerprinting
	NetworkInterface string

	// Network speed is the default speed of network interfaces if they can not
	// be determined dynamically.
	NetworkSpeed int

	// MaxKillTimeout allows capping the user-specifiable KillTimeout. If the
	// task's KillTimeout is greater than the MaxKillTimeout, MaxKillTimeout is
	// used.
	MaxKillTimeout time.Duration

	// Servers is a list of known server addresses. These are as "host:port"
	Servers []string

	// RPCHandler can be provided to avoid network traffic if the
	// server is running locally.
	RPCHandler RPCHandler

	// Node provides the base node
	Node *structs.Node

	// ClientMaxPort is the upper range of the ports that the client uses for
	// communicating with plugin subsystems over loopback
	ClientMaxPort uint

	// ClientMinPort is the lower range of the ports that the client uses for
	// communicating with plugin subsystems over loopback
	ClientMinPort uint

	// GloballyReservedPorts are ports that are reserved across all network
	// devices and IPs.
	GloballyReservedPorts []int

	// Options provides arbitrary key-value configuration for nomad internals,
	// like fingerprinters and drivers. The format is:
	//
	//	namespace.option = value
	Options map[string]string

	// Version is the version of the Nomad client
	Version string

	// Revision is the commit number of the Nomad client
	Revision string
}

Config is used to parameterize and configure the behavior of the client

func (*Config) Copy

func (c *Config) Copy() *Config

func (*Config) Read

func (c *Config) Read(id string) string

Read returns the specified configuration value or "".

func (*Config) ReadBool

func (c *Config) ReadBool(id string) (bool, error)

ReadBool parses the specified option as a boolean.

func (*Config) ReadBoolDefault

func (c *Config) ReadBoolDefault(id string, defaultValue bool) bool

ReadBoolDefault tries to parse the specified option as a boolean. If there is an error in parsing, the default option is returned.

func (*Config) ReadDefault

func (c *Config) ReadDefault(id string, defaultValue string) string

ReadDefault returns the specified configuration value, or the specified default value if none is set.

func (*Config) ReadStringListToMap

func (c *Config) ReadStringListToMap(key string) map[string]struct{}

ReadStringListToMap tries to parse the specified option as a comma seperated list. If there is an error in parsing, an empty list is returned.

func (*Config) ReadStringListToMapDefault

func (c *Config) ReadStringListToMapDefault(key, defaultValue string) map[string]struct{}

ReadStringListToMap tries to parse the specified option as a comma seperated list. If there is an error in parsing, an empty list is returned.

type RPCHandler

type RPCHandler interface {
	RPC(method string, args interface{}, reply interface{}) error
}

RPCHandler can be provided to the Client if there is a local server to avoid going over the network. If not provided, the Client will maintain a connection pool to the servers