open-nomad/client/config/config.go

76 lines
1.8 KiB
Go

package config
import (
"io"
"github.com/hashicorp/nomad/nomad/structs"
)
// 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
type RPCHandler interface {
RPC(method string, args interface{}, reply interface{}) error
}
// Config is used to parameterize and configure the behavior of the client
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
// 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
// Options provides arbitrary key-value configuration for nomad internals,
// like fingerprinters and drivers. The format is:
//
// namespace.option = value
Options map[string]string
}
// Read returns the specified configuration value or "".
func (c *Config) Read(id string) string {
val, ok := c.Options[id]
if !ok {
return ""
}
return val
}
// ReadDefault returns the specified configuration value, or the specified
// default value if none is set.
func (c *Config) ReadDefault(id string, defaultValue string) string {
val := c.Read(id)
if val != "" {
return val
}
return defaultValue
}