* Refactor auth: add token and memory implementations * Fix typo * Remove memory auth (implemented already by the store implementation), revert default to noop * Add grpc header * Global Config * config/global => util/config * Rename package to remove confict * Tweak * Improve Error Handling
680 lines
18 KiB
Go
680 lines
18 KiB
Go
// Package cmd is an interface for parsing the command line
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package cmd
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import (
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"fmt"
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"math/rand"
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"strings"
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"time"
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"github.com/micro/go-micro/v2/auth"
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"github.com/micro/go-micro/v2/broker"
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"github.com/micro/go-micro/v2/client"
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"github.com/micro/go-micro/v2/client/selector"
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"github.com/micro/go-micro/v2/debug/trace"
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log "github.com/micro/go-micro/v2/logger"
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"github.com/micro/go-micro/v2/registry"
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"github.com/micro/go-micro/v2/runtime"
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"github.com/micro/go-micro/v2/server"
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"github.com/micro/go-micro/v2/store"
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"github.com/micro/go-micro/v2/transport"
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// clients
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cgrpc "github.com/micro/go-micro/v2/client/grpc"
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cmucp "github.com/micro/go-micro/v2/client/mucp"
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// servers
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"github.com/micro/cli/v2"
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sgrpc "github.com/micro/go-micro/v2/server/grpc"
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smucp "github.com/micro/go-micro/v2/server/mucp"
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// brokers
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"github.com/micro/go-micro/v2/broker/memory"
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"github.com/micro/go-micro/v2/broker/nats"
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brokerSrv "github.com/micro/go-micro/v2/broker/service"
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// registries
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"github.com/micro/go-micro/v2/registry/etcd"
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kreg "github.com/micro/go-micro/v2/registry/kubernetes"
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"github.com/micro/go-micro/v2/registry/mdns"
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rmem "github.com/micro/go-micro/v2/registry/memory"
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regSrv "github.com/micro/go-micro/v2/registry/service"
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// runtimes
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kRuntime "github.com/micro/go-micro/v2/runtime/kubernetes"
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lRuntime "github.com/micro/go-micro/v2/runtime/local"
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srvRuntime "github.com/micro/go-micro/v2/runtime/service"
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// selectors
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"github.com/micro/go-micro/v2/client/selector/dns"
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"github.com/micro/go-micro/v2/client/selector/router"
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"github.com/micro/go-micro/v2/client/selector/static"
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// transports
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thttp "github.com/micro/go-micro/v2/transport/http"
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tmem "github.com/micro/go-micro/v2/transport/memory"
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// stores
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memStore "github.com/micro/go-micro/v2/store/memory"
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svcStore "github.com/micro/go-micro/v2/store/service"
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// tracers
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// jTracer "github.com/micro/go-micro/v2/debug/trace/jaeger"
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memTracer "github.com/micro/go-micro/v2/debug/trace/memory"
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// auth
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jwtAuth "github.com/micro/go-micro/v2/auth/jwt"
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sAuth "github.com/micro/go-micro/v2/auth/service"
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storeAuth "github.com/micro/go-micro/v2/auth/store"
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)
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type Cmd interface {
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// The cli app within this cmd
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App() *cli.App
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// Adds options, parses flags and initialise
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// exits on error
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Init(opts ...Option) error
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// Options set within this command
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Options() Options
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}
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type cmd struct {
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opts Options
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app *cli.App
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}
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type Option func(o *Options)
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var (
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DefaultCmd = newCmd()
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DefaultFlags = []cli.Flag{
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&cli.StringFlag{
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Name: "client",
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EnvVars: []string{"MICRO_CLIENT"},
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Usage: "Client for go-micro; rpc",
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},
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&cli.StringFlag{
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Name: "client_request_timeout",
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EnvVars: []string{"MICRO_CLIENT_REQUEST_TIMEOUT"},
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Usage: "Sets the client request timeout. e.g 500ms, 5s, 1m. Default: 5s",
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},
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&cli.IntFlag{
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Name: "client_retries",
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EnvVars: []string{"MICRO_CLIENT_RETRIES"},
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Value: client.DefaultRetries,
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Usage: "Sets the client retries. Default: 1",
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},
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&cli.IntFlag{
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Name: "client_pool_size",
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EnvVars: []string{"MICRO_CLIENT_POOL_SIZE"},
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Usage: "Sets the client connection pool size. Default: 1",
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},
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&cli.StringFlag{
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Name: "client_pool_ttl",
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EnvVars: []string{"MICRO_CLIENT_POOL_TTL"},
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Usage: "Sets the client connection pool ttl. e.g 500ms, 5s, 1m. Default: 1m",
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},
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&cli.IntFlag{
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Name: "register_ttl",
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EnvVars: []string{"MICRO_REGISTER_TTL"},
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Value: 60,
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Usage: "Register TTL in seconds",
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},
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&cli.IntFlag{
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Name: "register_interval",
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EnvVars: []string{"MICRO_REGISTER_INTERVAL"},
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Value: 30,
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Usage: "Register interval in seconds",
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},
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&cli.StringFlag{
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Name: "server",
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EnvVars: []string{"MICRO_SERVER"},
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Usage: "Server for go-micro; rpc",
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},
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&cli.StringFlag{
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Name: "server_name",
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EnvVars: []string{"MICRO_SERVER_NAME"},
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Usage: "Name of the server. go.micro.srv.example",
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},
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&cli.StringFlag{
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Name: "server_version",
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EnvVars: []string{"MICRO_SERVER_VERSION"},
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Usage: "Version of the server. 1.1.0",
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},
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&cli.StringFlag{
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Name: "server_id",
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EnvVars: []string{"MICRO_SERVER_ID"},
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Usage: "Id of the server. Auto-generated if not specified",
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},
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&cli.StringFlag{
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Name: "server_address",
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EnvVars: []string{"MICRO_SERVER_ADDRESS"},
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Usage: "Bind address for the server. 127.0.0.1:8080",
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},
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&cli.StringFlag{
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Name: "server_advertise",
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EnvVars: []string{"MICRO_SERVER_ADVERTISE"},
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Usage: "Used instead of the server_address when registering with discovery. 127.0.0.1:8080",
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},
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&cli.StringSliceFlag{
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Name: "server_metadata",
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EnvVars: []string{"MICRO_SERVER_METADATA"},
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Value: &cli.StringSlice{},
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Usage: "A list of key-value pairs defining metadata. version=1.0.0",
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},
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&cli.StringFlag{
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Name: "broker",
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EnvVars: []string{"MICRO_BROKER"},
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Usage: "Broker for pub/sub. http, nats, rabbitmq",
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},
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&cli.StringFlag{
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Name: "broker_address",
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EnvVars: []string{"MICRO_BROKER_ADDRESS"},
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Usage: "Comma-separated list of broker addresses",
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},
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&cli.StringFlag{
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Name: "profile",
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Usage: "Debug profiler for cpu and memory stats",
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EnvVars: []string{"MICRO_DEBUG_PROFILE"},
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},
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&cli.StringFlag{
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Name: "registry",
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EnvVars: []string{"MICRO_REGISTRY"},
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Usage: "Registry for discovery. etcd, mdns",
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},
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&cli.StringFlag{
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Name: "registry_address",
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EnvVars: []string{"MICRO_REGISTRY_ADDRESS"},
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Usage: "Comma-separated list of registry addresses",
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},
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&cli.StringFlag{
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Name: "runtime",
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Usage: "Runtime for building and running services e.g local, kubernetes",
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EnvVars: []string{"MICRO_RUNTIME"},
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Value: "local",
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},
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&cli.StringFlag{
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Name: "runtime_source",
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Usage: "Runtime source for building and running services e.g github.com/micro/service",
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EnvVars: []string{"MICRO_RUNTIME_SOURCE"},
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Value: "github.com/micro/services",
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},
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&cli.StringFlag{
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Name: "selector",
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EnvVars: []string{"MICRO_SELECTOR"},
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Usage: "Selector used to pick nodes for querying",
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},
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&cli.StringFlag{
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Name: "store",
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EnvVars: []string{"MICRO_STORE"},
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Usage: "Store used for key-value storage",
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},
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&cli.StringFlag{
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Name: "store_address",
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EnvVars: []string{"MICRO_STORE_ADDRESS"},
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Usage: "Comma-separated list of store addresses",
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},
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&cli.StringFlag{
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Name: "store_namespace",
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EnvVars: []string{"MICRO_STORE_NAMESPACE"},
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Usage: "Namespace for store data",
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},
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&cli.StringFlag{
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Name: "transport",
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EnvVars: []string{"MICRO_TRANSPORT"},
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Usage: "Transport mechanism used; http",
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},
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&cli.StringFlag{
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Name: "transport_address",
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EnvVars: []string{"MICRO_TRANSPORT_ADDRESS"},
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Usage: "Comma-separated list of transport addresses",
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},
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&cli.StringFlag{
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Name: "tracer",
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EnvVars: []string{"MICRO_TRACER"},
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Usage: "Tracer for distributed tracing, e.g. memory, jaeger",
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},
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&cli.StringFlag{
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Name: "tracer_address",
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EnvVars: []string{"MICRO_TRACER_ADDRESS"},
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Usage: "Comma-separated list of tracer addresses",
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},
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&cli.StringFlag{
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Name: "auth",
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EnvVars: []string{"MICRO_AUTH"},
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Usage: "Auth for role based access control, e.g. service",
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},
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&cli.StringFlag{
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Name: "auth_public_key",
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EnvVars: []string{"MICRO_AUTH_PUBLIC_KEY"},
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Usage: "Public key for JWT auth (base64 encoded PEM)",
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},
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&cli.StringFlag{
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Name: "auth_private_key",
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EnvVars: []string{"MICRO_AUTH_PRIVATE_KEY"},
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Usage: "Private key for JWT auth (base64 encoded PEM)",
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},
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&cli.StringSliceFlag{
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Name: "auth_exclude",
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EnvVars: []string{"MICRO_AUTH_EXCLUDE"},
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Usage: "Comma-separated list of endpoints excluded from authentication, e.g. Users.ListUsers",
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},
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}
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DefaultBrokers = map[string]func(...broker.Option) broker.Broker{
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"service": brokerSrv.NewBroker,
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"memory": memory.NewBroker,
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"nats": nats.NewBroker,
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}
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DefaultClients = map[string]func(...client.Option) client.Client{
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"mucp": cmucp.NewClient,
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"grpc": cgrpc.NewClient,
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}
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DefaultRegistries = map[string]func(...registry.Option) registry.Registry{
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"service": regSrv.NewRegistry,
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"etcd": etcd.NewRegistry,
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"mdns": mdns.NewRegistry,
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"memory": rmem.NewRegistry,
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"kubernetes": kreg.NewRegistry,
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}
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DefaultSelectors = map[string]func(...selector.Option) selector.Selector{
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"dns": dns.NewSelector,
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"router": router.NewSelector,
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"static": static.NewSelector,
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}
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DefaultServers = map[string]func(...server.Option) server.Server{
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"mucp": smucp.NewServer,
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"grpc": sgrpc.NewServer,
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}
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DefaultTransports = map[string]func(...transport.Option) transport.Transport{
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"memory": tmem.NewTransport,
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"http": thttp.NewTransport,
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}
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DefaultRuntimes = map[string]func(...runtime.Option) runtime.Runtime{
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"local": lRuntime.NewRuntime,
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"service": srvRuntime.NewRuntime,
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"kubernetes": kRuntime.NewRuntime,
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}
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DefaultStores = map[string]func(...store.Option) store.Store{
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"memory": memStore.NewStore,
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"service": svcStore.NewStore,
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}
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DefaultTracers = map[string]func(...trace.Option) trace.Tracer{
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"memory": memTracer.NewTracer,
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// "jaeger": jTracer.NewTracer,
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}
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DefaultAuths = map[string]func(...auth.Option) auth.Auth{
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"service": sAuth.NewAuth,
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"store": storeAuth.NewAuth,
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"jwt": jwtAuth.NewAuth,
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}
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)
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func init() {
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rand.Seed(time.Now().Unix())
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}
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func newCmd(opts ...Option) Cmd {
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options := Options{
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Auth: &auth.DefaultAuth,
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Broker: &broker.DefaultBroker,
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Client: &client.DefaultClient,
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Registry: ®istry.DefaultRegistry,
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Server: &server.DefaultServer,
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Selector: &selector.DefaultSelector,
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Transport: &transport.DefaultTransport,
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Runtime: &runtime.DefaultRuntime,
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Store: &store.DefaultStore,
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Tracer: &trace.DefaultTracer,
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Brokers: DefaultBrokers,
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Clients: DefaultClients,
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Registries: DefaultRegistries,
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Selectors: DefaultSelectors,
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Servers: DefaultServers,
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Transports: DefaultTransports,
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Runtimes: DefaultRuntimes,
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Stores: DefaultStores,
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Tracers: DefaultTracers,
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Auths: DefaultAuths,
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}
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for _, o := range opts {
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o(&options)
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}
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if len(options.Description) == 0 {
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options.Description = "a go-micro service"
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}
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cmd := new(cmd)
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cmd.opts = options
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cmd.app = cli.NewApp()
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cmd.app.Name = cmd.opts.Name
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cmd.app.Version = cmd.opts.Version
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cmd.app.Usage = cmd.opts.Description
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cmd.app.Before = cmd.Before
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cmd.app.Flags = DefaultFlags
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cmd.app.Action = func(c *cli.Context) error {
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return nil
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}
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if len(options.Version) == 0 {
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cmd.app.HideVersion = true
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}
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return cmd
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}
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func (c *cmd) App() *cli.App {
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return c.app
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}
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func (c *cmd) Options() Options {
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return c.opts
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}
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func (c *cmd) Before(ctx *cli.Context) error {
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// If flags are set then use them otherwise do nothing
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var authOpts []auth.Option
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var serverOpts []server.Option
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var clientOpts []client.Option
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// Set the store
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if name := ctx.String("store"); len(name) > 0 {
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s, ok := c.opts.Stores[name]
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if !ok {
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return fmt.Errorf("Unsupported store: %s", name)
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}
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*c.opts.Store = s()
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}
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// Set the runtime
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if name := ctx.String("runtime"); len(name) > 0 {
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r, ok := c.opts.Runtimes[name]
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if !ok {
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return fmt.Errorf("Unsupported runtime: %s", name)
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}
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*c.opts.Runtime = r()
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}
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// Set the tracer
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if name := ctx.String("tracer"); len(name) > 0 {
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r, ok := c.opts.Tracers[name]
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if !ok {
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return fmt.Errorf("Unsupported tracer: %s", name)
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}
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*c.opts.Tracer = r()
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}
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// Set the auth
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if name := ctx.String("auth"); len(name) > 0 {
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a, ok := c.opts.Auths[name]
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if !ok {
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return fmt.Errorf("Unsupported auth: %s", name)
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}
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*c.opts.Auth = a()
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}
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// Set the client
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if name := ctx.String("client"); len(name) > 0 {
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// only change if we have the client and type differs
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if cl, ok := c.opts.Clients[name]; ok && (*c.opts.Client).String() != name {
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*c.opts.Client = cl()
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}
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}
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// Set the server
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if name := ctx.String("server"); len(name) > 0 {
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// only change if we have the server and type differs
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if s, ok := c.opts.Servers[name]; ok && (*c.opts.Server).String() != name {
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*c.opts.Server = s()
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}
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}
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// Set the broker
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if name := ctx.String("broker"); len(name) > 0 && (*c.opts.Broker).String() != name {
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b, ok := c.opts.Brokers[name]
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if !ok {
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return fmt.Errorf("Broker %s not found", name)
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}
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*c.opts.Broker = b()
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serverOpts = append(serverOpts, server.Broker(*c.opts.Broker))
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clientOpts = append(clientOpts, client.Broker(*c.opts.Broker))
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}
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// Set the registry
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if name := ctx.String("registry"); len(name) > 0 && (*c.opts.Registry).String() != name {
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r, ok := c.opts.Registries[name]
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if !ok {
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return fmt.Errorf("Registry %s not found", name)
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}
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*c.opts.Registry = r()
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serverOpts = append(serverOpts, server.Registry(*c.opts.Registry))
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clientOpts = append(clientOpts, client.Registry(*c.opts.Registry))
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if err := (*c.opts.Selector).Init(selector.Registry(*c.opts.Registry)); err != nil {
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log.Fatalf("Error configuring registry: %v", err)
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}
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clientOpts = append(clientOpts, client.Selector(*c.opts.Selector))
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if err := (*c.opts.Broker).Init(broker.Registry(*c.opts.Registry)); err != nil {
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log.Fatalf("Error configuring broker: %v", err)
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}
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}
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// Set the selector
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if name := ctx.String("selector"); len(name) > 0 && (*c.opts.Selector).String() != name {
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s, ok := c.opts.Selectors[name]
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if !ok {
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return fmt.Errorf("Selector %s not found", name)
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}
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*c.opts.Selector = s(selector.Registry(*c.opts.Registry))
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// No server option here. Should there be?
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clientOpts = append(clientOpts, client.Selector(*c.opts.Selector))
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}
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// Set the transport
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if name := ctx.String("transport"); len(name) > 0 && (*c.opts.Transport).String() != name {
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t, ok := c.opts.Transports[name]
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if !ok {
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return fmt.Errorf("Transport %s not found", name)
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}
|
|
|
|
*c.opts.Transport = t()
|
|
serverOpts = append(serverOpts, server.Transport(*c.opts.Transport))
|
|
clientOpts = append(clientOpts, client.Transport(*c.opts.Transport))
|
|
}
|
|
|
|
// Parse the server options
|
|
metadata := make(map[string]string)
|
|
for _, d := range ctx.StringSlice("server_metadata") {
|
|
var key, val string
|
|
parts := strings.Split(d, "=")
|
|
key = parts[0]
|
|
if len(parts) > 1 {
|
|
val = strings.Join(parts[1:], "=")
|
|
}
|
|
metadata[key] = val
|
|
}
|
|
|
|
if len(metadata) > 0 {
|
|
serverOpts = append(serverOpts, server.Metadata(metadata))
|
|
}
|
|
|
|
if len(ctx.String("broker_address")) > 0 {
|
|
if err := (*c.opts.Broker).Init(broker.Addrs(strings.Split(ctx.String("broker_address"), ",")...)); err != nil {
|
|
log.Fatalf("Error configuring broker: %v", err)
|
|
}
|
|
}
|
|
|
|
if len(ctx.String("registry_address")) > 0 {
|
|
if err := (*c.opts.Registry).Init(registry.Addrs(strings.Split(ctx.String("registry_address"), ",")...)); err != nil {
|
|
log.Fatalf("Error configuring registry: %v", err)
|
|
}
|
|
}
|
|
|
|
if len(ctx.String("transport_address")) > 0 {
|
|
if err := (*c.opts.Transport).Init(transport.Addrs(strings.Split(ctx.String("transport_address"), ",")...)); err != nil {
|
|
log.Fatalf("Error configuring transport: %v", err)
|
|
}
|
|
}
|
|
|
|
if len(ctx.String("store_address")) > 0 {
|
|
if err := (*c.opts.Store).Init(store.Nodes(strings.Split(ctx.String("store_address"), ",")...)); err != nil {
|
|
log.Fatalf("Error configuring store: %v", err)
|
|
}
|
|
}
|
|
|
|
if len(ctx.String("store_namespace")) > 0 {
|
|
if err := (*c.opts.Store).Init(store.Namespace(ctx.String("store_address"))); err != nil {
|
|
log.Fatalf("Error configuring store: %v", err)
|
|
}
|
|
}
|
|
|
|
if len(ctx.String("server_name")) > 0 {
|
|
serverOpts = append(serverOpts, server.Name(ctx.String("server_name")))
|
|
}
|
|
|
|
if len(ctx.String("server_version")) > 0 {
|
|
serverOpts = append(serverOpts, server.Version(ctx.String("server_version")))
|
|
}
|
|
|
|
if len(ctx.String("server_id")) > 0 {
|
|
serverOpts = append(serverOpts, server.Id(ctx.String("server_id")))
|
|
}
|
|
|
|
if len(ctx.String("server_address")) > 0 {
|
|
serverOpts = append(serverOpts, server.Address(ctx.String("server_address")))
|
|
}
|
|
|
|
if len(ctx.String("server_advertise")) > 0 {
|
|
serverOpts = append(serverOpts, server.Advertise(ctx.String("server_advertise")))
|
|
}
|
|
|
|
if ttl := time.Duration(ctx.Int("register_ttl")); ttl >= 0 {
|
|
serverOpts = append(serverOpts, server.RegisterTTL(ttl*time.Second))
|
|
}
|
|
|
|
if val := time.Duration(ctx.Int("register_interval")); val >= 0 {
|
|
serverOpts = append(serverOpts, server.RegisterInterval(val*time.Second))
|
|
}
|
|
|
|
if len(ctx.String("runtime_source")) > 0 {
|
|
if err := (*c.opts.Runtime).Init(runtime.WithSource(ctx.String("runtime_source"))); err != nil {
|
|
log.Fatalf("Error configuring runtime: %v", err)
|
|
}
|
|
}
|
|
|
|
if len(ctx.String("auth_public_key")) > 0 {
|
|
authOpts = append(authOpts, auth.PublicKey(ctx.String("auth_public_key")))
|
|
}
|
|
|
|
if len(ctx.String("auth_private_key")) > 0 {
|
|
authOpts = append(authOpts, auth.PrivateKey(ctx.String("auth_private_key")))
|
|
}
|
|
|
|
if len(ctx.StringSlice("auth_exclude")) > 0 {
|
|
authOpts = append(authOpts, auth.Excludes(ctx.StringSlice("auth_exclude")...))
|
|
}
|
|
|
|
if len(authOpts) > 0 {
|
|
if err := (*c.opts.Auth).Init(authOpts...); err != nil {
|
|
log.Fatalf("Error configuring auth: %v", err)
|
|
}
|
|
}
|
|
|
|
// client opts
|
|
if r := ctx.Int("client_retries"); r >= 0 {
|
|
clientOpts = append(clientOpts, client.Retries(r))
|
|
}
|
|
|
|
if t := ctx.String("client_request_timeout"); len(t) > 0 {
|
|
d, err := time.ParseDuration(t)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to parse client_request_timeout: %v", t)
|
|
}
|
|
clientOpts = append(clientOpts, client.RequestTimeout(d))
|
|
}
|
|
|
|
if r := ctx.Int("client_pool_size"); r > 0 {
|
|
clientOpts = append(clientOpts, client.PoolSize(r))
|
|
}
|
|
|
|
if t := ctx.String("client_pool_ttl"); len(t) > 0 {
|
|
d, err := time.ParseDuration(t)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to parse client_pool_ttl: %v", t)
|
|
}
|
|
clientOpts = append(clientOpts, client.PoolTTL(d))
|
|
}
|
|
|
|
// We have some command line opts for the server.
|
|
// Lets set it up
|
|
if len(serverOpts) > 0 {
|
|
if err := (*c.opts.Server).Init(serverOpts...); err != nil {
|
|
log.Fatalf("Error configuring server: %v", err)
|
|
}
|
|
}
|
|
|
|
// Use an init option?
|
|
if len(clientOpts) > 0 {
|
|
if err := (*c.opts.Client).Init(clientOpts...); err != nil {
|
|
log.Fatalf("Error configuring client: %v", err)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *cmd) Init(opts ...Option) error {
|
|
for _, o := range opts {
|
|
o(&c.opts)
|
|
}
|
|
if len(c.opts.Name) > 0 {
|
|
c.app.Name = c.opts.Name
|
|
}
|
|
if len(c.opts.Version) > 0 {
|
|
c.app.Version = c.opts.Version
|
|
}
|
|
c.app.HideVersion = len(c.opts.Version) == 0
|
|
c.app.Usage = c.opts.Description
|
|
c.app.RunAndExitOnError()
|
|
return nil
|
|
}
|
|
|
|
func DefaultOptions() Options {
|
|
return DefaultCmd.Options()
|
|
}
|
|
|
|
func App() *cli.App {
|
|
return DefaultCmd.App()
|
|
}
|
|
|
|
func Init(opts ...Option) error {
|
|
return DefaultCmd.Init(opts...)
|
|
}
|
|
|
|
func NewCmd(opts ...Option) Cmd {
|
|
return newCmd(opts...)
|
|
}
|