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server, examples, extensions lint compliant (#1109)

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these are all automated changes suggested by golint
This commit is contained in:
Reed Allman
2018-07-04 09:23:15 -05:00
committed by Owen Cliffe
parent 6f5e58144a
commit 1cdb47d6e9
30 changed files with 355 additions and 223 deletions
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23
api/const.go
View File

@@ -1,16 +1,23 @@
package api
const (
// Gin Request context key names
// AppName is the app name context key
AppName string = "app_name"
AppID string = "app_id"
Path string = "path"
// AppID is the app id context key
AppID string = "app_id"
// Path is a route's path context key
Path string = "path"
// Gin URL template parameters
ParamAppID string = "appID"
ParamAppName string = "appName"
// ParamAppID is the url path parameter for app id
ParamAppID string = "appID"
// ParamAppName is the url path parameter for app name
ParamAppName string = "appName"
// ParamRouteName is the url path parameter for route name
ParamRouteName string = "route"
// ParamTriggerID is the url path parameter for trigger id
ParamTriggerID string = "triggerID"
ParamCallID string = "call"
ParamFnID string = "fnID"
// ParamCallID is the url path parameter for call id
ParamCallID string = "call"
// ParamFnID is the url path parameter for fn id
ParamFnID string = "fnID"
)

6
api/server/call_logs.go
View File

@@ -16,10 +16,10 @@ import (
// note: for backward compatibility, will go away later
type callLogResponse struct {
Message string `json:"message"`
Log *CallLog `json:"log"`
Log *callLog `json:"log"`
}
type CallLog struct {
type callLog struct {
CallID string `json:"call_id" db:"id"`
Log string `json:"log" db:"log"`
}
@@ -28,7 +28,7 @@ func writeJSON(c *gin.Context, callID string, logReader io.Reader) {
var b bytes.Buffer
b.ReadFrom(logReader)
c.JSON(http.StatusOK, callLogResponse{"Successfully loaded log",
&CallLog{
&callLog{
CallID: callID,
Log: b.String(),
}})

6
api/server/defaultexts/defaultexts.go
View File

@@ -1,8 +1,10 @@
// defaultexts are the extensions that are auto-loaded in to the default fnserver binary
// included here as a package to simplify inclusion in testing
// Package defaultexts are the extensions that are auto-loaded in to the
// default fnserver binary included here as a package to simplify inclusion in
// testing
package defaultexts
import (
// import all datastore/log/mq modules for runtime config
_ "github.com/fnproject/fn/api/datastore/sql"
_ "github.com/fnproject/fn/api/datastore/sql/mysql"
_ "github.com/fnproject/fn/api/datastore/sql/postgres"

27
api/server/extension_points.go
View File

@@ -1,6 +1,7 @@
// TODO: it would be nice to move these into the top level folder so people can use these with the "functions" package, eg: functions.ApiHandler
package server
// TODO: it would be nice to move these into the top level folder so people can use these with the "functions" package, eg: functions.ApiHandler
import (
"net/http"
@@ -10,13 +11,13 @@ import (
"github.com/gin-gonic/gin"
)
func (s *Server) apiHandlerWrapperFn(apiHandler fnext.ApiHandler) gin.HandlerFunc {
func (s *Server) apiHandlerWrapperFn(apiHandler fnext.APIHandler) gin.HandlerFunc {
return func(c *gin.Context) {
apiHandler.ServeHTTP(c.Writer, c.Request)
}
}
func (s *Server) apiAppHandlerWrapperFn(apiHandler fnext.ApiAppHandler) gin.HandlerFunc {
func (s *Server) apiAppHandlerWrapperFn(apiHandler fnext.APIAppHandler) gin.HandlerFunc {
return func(c *gin.Context) {
// get the app
appID := c.MustGet(api.AppID).(string)
@@ -36,7 +37,7 @@ func (s *Server) apiAppHandlerWrapperFn(apiHandler fnext.ApiAppHandler) gin.Hand
}
}
func (s *Server) apiRouteHandlerWrapperFn(apiHandler fnext.ApiRouteHandler) gin.HandlerFunc {
func (s *Server) apiRouteHandlerWrapperFn(apiHandler fnext.APIRouteHandler) gin.HandlerFunc {
return func(c *gin.Context) {
context := c.Request.Context()
appID := c.MustGet(api.AppID).(string)
@@ -70,37 +71,37 @@ func (s *Server) apiRouteHandlerWrapperFn(apiHandler fnext.ApiRouteHandler) gin.
}
// AddEndpoint adds an endpoint to /v1/x
func (s *Server) AddEndpoint(method, path string, handler fnext.ApiHandler) {
func (s *Server) AddEndpoint(method, path string, handler fnext.APIHandler) {
v1 := s.Router.Group("/v1")
// v1.GET("/apps/:app/log", logHandler(cfg))
v1.Handle(method, path, s.apiHandlerWrapperFn(handler))
}
// AddEndpoint adds an endpoint to /v1/x
// AddEndpointFunc adds an endpoint to /v1/x
func (s *Server) AddEndpointFunc(method, path string, handler func(w http.ResponseWriter, r *http.Request)) {
s.AddEndpoint(method, path, fnext.ApiHandlerFunc(handler))
s.AddEndpoint(method, path, fnext.APIHandlerFunc(handler))
}
// AddAppEndpoint adds an endpoints to /v1/apps/:app/x
func (s *Server) AddAppEndpoint(method, path string, handler fnext.ApiAppHandler) {
func (s *Server) AddAppEndpoint(method, path string, handler fnext.APIAppHandler) {
v1 := s.Router.Group("/v1")
v1.Use(s.checkAppPresenceByName())
v1.Handle(method, "/apps/:app"+path, s.apiAppHandlerWrapperFn(handler))
}
// AddAppEndpoint adds an endpoints to /v1/apps/:app/x
// AddAppEndpointFunc adds an endpoints to /v1/apps/:app/x
func (s *Server) AddAppEndpointFunc(method, path string, handler func(w http.ResponseWriter, r *http.Request, app *models.App)) {
s.AddAppEndpoint(method, path, fnext.ApiAppHandlerFunc(handler))
s.AddAppEndpoint(method, path, fnext.APIAppHandlerFunc(handler))
}
// AddRouteEndpoint adds an endpoints to /v1/apps/:app/routes/:route/x
func (s *Server) AddRouteEndpoint(method, path string, handler fnext.ApiRouteHandler) {
func (s *Server) AddRouteEndpoint(method, path string, handler fnext.APIRouteHandler) {
v1 := s.Router.Group("/v1")
v1.Use(s.checkAppPresenceByName())
v1.Handle(method, "/apps/:app/routes/:route"+path, s.apiRouteHandlerWrapperFn(handler)) // conflicts with existing wildcard
}
// AddRouteEndpoint adds an endpoints to /v1/apps/:app/routes/:route/x
// AddRouteEndpointFunc adds an endpoints to /v1/apps/:app/routes/:route/x
func (s *Server) AddRouteEndpointFunc(method, path string, handler func(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route)) {
s.AddRouteEndpoint(method, path, fnext.ApiRouteHandlerFunc(handler))
s.AddRouteEndpoint(method, path, fnext.APIRouteHandlerFunc(handler))
}

35
api/server/gin_middlewares.go
View File

@@ -79,7 +79,6 @@ func traceWrap(c *gin.Context) {
}
func apiMetricsWrap(s *Server) {
measure := func(engine *gin.Engine) func(*gin.Context) {
var routes gin.RoutesInfo
return func(c *gin.Context) {
@@ -145,18 +144,48 @@ func loggerWrap(c *gin.Context) {
if appName := c.Param(api.ParamAppName); appName != "" {
c.Set(api.AppName, appName)
ctx = context.WithValue(ctx, api.AppName, appName)
ctx = ContextWithApp(ctx, appName)
}
if routePath := c.Param(api.ParamRouteName); routePath != "" {
c.Set(api.Path, routePath)
ctx = context.WithValue(ctx, api.Path, routePath)
ctx = ContextWithPath(ctx, routePath)
}
c.Request = c.Request.WithContext(ctx)
c.Next()
}
type ctxPathKey string
// ContextWithPath sets the routePath value on a context, it may be retrieved
// using PathFromContext.
// TODO this is also used as a gin.Key -- stop one of these two things.
func ContextWithPath(ctx context.Context, routePath string) context.Context {
return context.WithValue(ctx, ctxPathKey(api.Path), routePath)
}
// PathFromContext returns the path from a context, if set.
func PathFromContext(ctx context.Context) string {
r, _ := ctx.Value(ctxPathKey(api.Path)).(string)
return r
}
type ctxAppKey string
// ContextWithApp sets the app name value on a context, it may be retrieved
// using AppFromContext.
// TODO this is also used as a gin.Key -- stop one of these two things.
func ContextWithApp(ctx context.Context, app string) context.Context {
return context.WithValue(ctx, ctxAppKey(api.AppName), app)
}
// AppFromContext returns the app from a context, if set.
func AppFromContext(ctx context.Context) string {
r, _ := ctx.Value(ctxAppKey(api.AppName)).(string)
return r
}
func (s *Server) checkAppPresenceByNameAtRunner() gin.HandlerFunc {
return func(c *gin.Context) {
ctx, _ := common.LoggerWithFields(c.Request.Context(), extractFields(c))

2
api/server/middleware.go
View File

@@ -32,7 +32,7 @@ func (c *middlewareController) CallFunction(w http.ResponseWriter, r *http.Reque
// since we added middleware that checks the app ID
// we need to ensure that we set it as soon as possible
appName := ctx.Value(api.AppName).(string)
appName := AppFromContext(ctx)
if appName != "" {
appID, err := c.server.datastore.GetAppID(ctx, appName)
if err != nil {

11
api/server/middleware_test.go
View File

@@ -67,6 +67,12 @@ func TestMiddlewareChaining(t *testing.T) {
}
func TestRootMiddleware(t *testing.T) {
buf := setLogBuffer()
defer func() {
if t.Failed() {
t.Log(buf.String())
}
}()
app1 := &models.App{ID: "app_id_1", Name: "myapp", Config: models.Config{}}
app2 := &models.App{ID: "app_id_2", Name: "myapp2", Config: models.Config{}}
@@ -92,9 +98,8 @@ func TestRootMiddleware(t *testing.T) {
if r.Header.Get("funcit") != "" {
t.Log("breaker breaker!")
ctx := r.Context()
// TODO: this is a little dicey, should have some functions to set these in case the context keys change or something.
ctx = context.WithValue(ctx, "app_name", "myapp2")
ctx = context.WithValue(ctx, "path", "/app2func")
ctx = ContextWithApp(ctx, "myapp2")
ctx = ContextWithPath(ctx, "/app2func")
mctx := fnext.GetMiddlewareController(ctx)
mctx.CallFunction(w, r.WithContext(ctx))
return

2
api/server/route_listeners.go
View File

@@ -11,6 +11,8 @@ type routeListeners []fnext.RouteListener
var _ fnext.RouteListener = new(routeListeners)
// AddRouteListener adds a route listener extension to the set of listeners
// to be called around each route operation.
func (s *Server) AddRouteListener(listener fnext.RouteListener) {
*s.routeListeners = append(*s.routeListeners, listener)
}

6
api/server/runner.go
View File

@@ -32,11 +32,11 @@ func (s *Server) handleFunctionCall(c *gin.Context) {
func (s *Server) handleFunctionCall2(c *gin.Context) error {
ctx := c.Request.Context()
var p string
r := ctx.Value(api.Path)
if r == nil {
r := PathFromContext(ctx)
if r == "" {
p = "/"
} else {
p = r.(string)
p = r
}
appID := c.MustGet(api.AppID).(string)

24
api/server/runner_test.go
View File

@@ -3,7 +3,6 @@ package server
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
@@ -381,29 +380,6 @@ func TestRouteRunnerExecution(t *testing.T) {
}
}
func getDockerId(respBytes []byte) (string, error) {
var respJs map[string]interface{}
var data map[string]interface{}
err := json.Unmarshal(respBytes, &respJs)
if err != nil {
return "", err
}
data, ok := respJs["data"].(map[string]interface{})
if !ok {
return "", errors.New("unexpected json: data map")
}
id, ok := data["DockerId"].(string)
if !ok {
return "", errors.New("unexpected json: docker id string")
}
return id, nil
}
func checkLogs(t *testing.T, tnum int, ds models.LogStore, callID string, expected []string) bool {
logReader, err := ds.GetLog(context.Background(), "myapp", callID)

229
api/server/server.go
View File

@@ -43,51 +43,119 @@ import (
)
const (
EnvLogLevel = "FN_LOG_LEVEL"
EnvLogDest = "FN_LOG_DEST"
EnvLogPrefix = "FN_LOG_PREFIX"
EnvMQURL = "FN_MQ_URL"
EnvDBURL = "FN_DB_URL"
EnvLOGDBURL = "FN_LOGSTORE_URL"
EnvRunnerURL = "FN_RUNNER_API_URL"
// TODO these are kind of redundant as exported values since the env vars
// have to be set using these values (hopefully from an env), consider
// forcing usage through WithXxx configuration methods and documenting there vs.
// expecting users to use os.SetEnv(EnvLogLevel, "debug") // why ?
// EnvLogLevel sets the stderr logging level
EnvLogLevel = "FN_LOG_LEVEL"
// EnvLogDest is a url of a log destination:
// possible schemes: { udp, tcp, file }
// file url must contain only a path, syslog must contain only a host[:port]
// expect: [scheme://][host][:port][/path]
// default scheme to udp:// if none given
EnvLogDest = "FN_LOG_DEST"
// EnvLogPrefix is a prefix to affix to each log line.
EnvLogPrefix = "FN_LOG_PREFIX"
// EnvMQURL is a url to an MQ service:
// possible out-of-the-box schemes: { memory, redis, bolt }
EnvMQURL = "FN_MQ_URL"
// EnvDBURL is a url to a db service:
// possible schemes: { postgres, sqlite3, mysql }
EnvDBURL = "FN_DB_URL"
// EnvLogDBURL is a url to a log storage service:
// possible schemes: { postgres, sqlite3, mysql, s3 }
EnvLogDBURL = "FN_LOGSTORE_URL"
// EnvRunnerURL is a url pointing to an Fn API service.
EnvRunnerURL = "FN_RUNNER_API_URL"
// EnvRunnerAddresses is a list of runner urls for an lb to use.
EnvRunnerAddresses = "FN_RUNNER_ADDRESSES"
// EnvPublicLoadBalancerURL is the url to inject into trigger responses to get a public url.
EnvPublicLoadBalancerURL = "FN_PUBLIC_LB_URL"
EnvRunnerAddresses = "FN_RUNNER_ADDRESSES"
EnvNodeType = "FN_NODE_TYPE"
EnvPort = "FN_PORT" // be careful, Gin expects this variable to be "port"
EnvGRPCPort = "FN_GRPC_PORT"
EnvAPICORSOrigins = "FN_API_CORS_ORIGINS"
EnvAPICORSHeaders = "FN_API_CORS_HEADERS"
EnvZipkinURL = "FN_ZIPKIN_URL"
EnvJaegerURL = "FN_JAEGER_URL"
// Certificates to communicate with other FN nodes
EnvCert = "FN_NODE_CERT"
EnvCertKey = "FN_NODE_CERT_KEY"
// EnvNodeType defines the runtime mode for fn to run in, options
// are one of: { full, api, lb, runner, pure-runner }
EnvNodeType = "FN_NODE_TYPE"
// EnvPort is the port to listen on for fn http server.
EnvPort = "FN_PORT" // be careful, Gin expects this variable to be "port"
// EnvGRPCPort is the port to run the grpc server on for a pure-runner node.
EnvGRPCPort = "FN_GRPC_PORT"
// EnvAPICORSOrigins is the list of CORS origins to allow.
EnvAPICORSOrigins = "FN_API_CORS_ORIGINS"
// EnvAPICORSHeaders is the list of CORS headers allowed.
EnvAPICORSHeaders = "FN_API_CORS_HEADERS"
// EnvZipkinURL is the url of a zipkin node to send traces to.
EnvZipkinURL = "FN_ZIPKIN_URL"
// EnvJaegerURL is the url of a jaeger node to send traces to.
EnvJaegerURL = "FN_JAEGER_URL"
// EnvCert is the certificate used to communicate with other fn nodes.
EnvCert = "FN_NODE_CERT"
// EnvCertKey is the key for the specified cert.
EnvCertKey = "FN_NODE_CERT_KEY"
// EnvCertAuth is the CA for the cert provided.
EnvCertAuth = "FN_NODE_CERT_AUTHORITY"
// The header name of the incoming request which holds the request ID
EnvRidHeader = "FN_RID_HEADER"
// EnvRIDHeader is the header name of the incoming request which holds the request ID
EnvRIDHeader = "FN_RID_HEADER"
// EnvProcessCollectorList is the list of procid's to collect metrics for.
EnvProcessCollectorList = "FN_PROCESS_COLLECTOR_LIST"
EnvLBPlacementAlg = "FN_PLACER"
// Defaults
// EnvLBPlacementAlg is the algorithm to place fn calls to fn runners in lb.[0w
EnvLBPlacementAlg = "FN_PLACER"
// DefaultLogLevel is info
DefaultLogLevel = "info"
DefaultLogDest = "stderr"
DefaultPort = 8080
// DefaultLogDest is stderr
DefaultLogDest = "stderr"
// DefaultPort is 8080
DefaultPort = 8080
// DefaultGRPCPort is 9190
DefaultGRPCPort = 9190
)
type ServerNodeType int32
// NodeType is the mode to run fn in.
type NodeType int32
const (
ServerTypeFull ServerNodeType = iota
// ServerTypeFull runs all API endpoints, including executing tasks.
ServerTypeFull NodeType = iota
// ServerTypeAPI runs only /v1 endpoints, to manage resources.
ServerTypeAPI
// ServerTypeLB runs only /r/ endpoints, routing to runner nodes.
ServerTypeLB
// ServerTypeRunner runs only /r/ endpoints, to execute tasks.
ServerTypeRunner
// ServerTypePureRunner runs only grpc server, to execute tasks.
ServerTypePureRunner
)
func (s ServerNodeType) String() string {
func (s NodeType) String() string {
switch s {
default:
return "full"
@@ -102,8 +170,9 @@ func (s ServerNodeType) String() string {
}
}
// Server is the object which ties together all the fn things, it is the entrypoint
// for managing fn resources and executing tasks.
type Server struct {
// TODO this one maybe we have `AddRoute` in extensions?
Router *gin.Engine
AdminRouter *gin.Engine
@@ -114,7 +183,7 @@ type Server struct {
datastore models.Datastore
mq models.MessageQueue
logstore models.LogStore
nodeType ServerNodeType
nodeType NodeType
cert string
certKey string
certAuthority string
@@ -130,7 +199,7 @@ type Server struct {
extraCtxs []context.Context
}
func nodeTypeFromString(value string) ServerNodeType {
func nodeTypeFromString(value string) NodeType {
switch value {
case "api":
return ServerTypeAPI
@@ -146,7 +215,7 @@ func nodeTypeFromString(value string) ServerNodeType {
}
// NewFromEnv creates a new Functions server based on env vars.
func NewFromEnv(ctx context.Context, opts ...ServerOption) *Server {
func NewFromEnv(ctx context.Context, opts ...Option) *Server {
curDir := pwd()
var defaultDB, defaultMQ string
nodeType := nodeTypeFromString(getEnv(EnvNodeType, "")) // default to full
@@ -168,7 +237,7 @@ func NewFromEnv(ctx context.Context, opts ...ServerOption) *Server {
opts = append(opts, WithPrometheus()) // TODO option to turn this off?
opts = append(opts, WithDBURL(getEnv(EnvDBURL, defaultDB)))
opts = append(opts, WithMQURL(getEnv(EnvMQURL, defaultMQ)))
opts = append(opts, WithLogURL(getEnv(EnvLOGDBURL, "")))
opts = append(opts, WithLogURL(getEnv(EnvLogDBURL, "")))
opts = append(opts, WithRunnerURL(getEnv(EnvRunnerURL, "")))
opts = append(opts, WithType(nodeType))
opts = append(opts, WithNodeCert(getEnv(EnvCert, "")))
@@ -204,7 +273,8 @@ func pwd() string {
return strings.Replace(cwd, "\\", "/", -1)
}
func WithWebPort(port int) ServerOption {
// WithWebPort maps EnvPort
func WithWebPort(port int) Option {
return func(ctx context.Context, s *Server) error {
if s.adminListenPort == s.webListenPort {
s.adminListenPort = port
@@ -214,28 +284,32 @@ func WithWebPort(port int) ServerOption {
}
}
func WithGRPCPort(port int) ServerOption {
// WithGRPCPort maps EnvGRPCPort
func WithGRPCPort(port int) Option {
return func(ctx context.Context, s *Server) error {
s.grpcListenPort = port
return nil
}
}
func WithLogLevel(ll string) ServerOption {
// WithLogLevel maps EnvLogLevel
func WithLogLevel(ll string) Option {
return func(ctx context.Context, s *Server) error {
common.SetLogLevel(ll)
return nil
}
}
func WithLogDest(dst, prefix string) ServerOption {
// WithLogDest maps EnvLogDest
func WithLogDest(dst, prefix string) Option {
return func(ctx context.Context, s *Server) error {
common.SetLogDest(dst, prefix)
return nil
}
}
func WithDBURL(dbURL string) ServerOption {
// WithDBURL maps EnvDBURL
func WithDBURL(dbURL string) Option {
return func(ctx context.Context, s *Server) error {
if dbURL != "" {
ds, err := datastore.New(ctx, dbURL)
@@ -248,7 +322,8 @@ func WithDBURL(dbURL string) ServerOption {
}
}
func WithMQURL(mqURL string) ServerOption {
// WithMQURL maps EnvMQURL
func WithMQURL(mqURL string) Option {
return func(ctx context.Context, s *Server) error {
if mqURL != "" {
mq, err := mqs.New(mqURL)
@@ -261,7 +336,8 @@ func WithMQURL(mqURL string) ServerOption {
}
}
func WithLogURL(logstoreURL string) ServerOption {
// WithLogURL maps EnvLogURL
func WithLogURL(logstoreURL string) Option {
return func(ctx context.Context, s *Server) error {
if ldb := logstoreURL; ldb != "" {
logDB, err := logs.New(ctx, logstoreURL)
@@ -274,7 +350,8 @@ func WithLogURL(logstoreURL string) ServerOption {
}
}
func WithRunnerURL(runnerURL string) ServerOption {
// WithRunnerURL maps EnvRunnerURL
func WithRunnerURL(runnerURL string) Option {
return func(ctx context.Context, s *Server) error {
if runnerURL != "" {
cl, err := hybrid.NewClient(runnerURL)
@@ -287,14 +364,16 @@ func WithRunnerURL(runnerURL string) ServerOption {
}
}
func WithType(t ServerNodeType) ServerOption {
// WithType maps EnvNodeType
func WithType(t NodeType) Option {
return func(ctx context.Context, s *Server) error {
s.nodeType = t
return nil
}
}
func WithNodeCert(cert string) ServerOption {
// WithNodeCert maps EnvNodeCert
func WithNodeCert(cert string) Option {
return func(ctx context.Context, s *Server) error {
if cert != "" {
abscert, err := filepath.Abs(cert)
@@ -311,7 +390,8 @@ func WithNodeCert(cert string) ServerOption {
}
}
func WithNodeCertKey(key string) ServerOption {
// WithNodeCertKey maps EnvNodeCertKey
func WithNodeCertKey(key string) Option {
return func(ctx context.Context, s *Server) error {
if key != "" {
abskey, err := filepath.Abs(key)
@@ -328,7 +408,8 @@ func WithNodeCertKey(key string) ServerOption {
}
}
func WithNodeCertAuthority(ca string) ServerOption {
// WithNodeCertAuthority maps EnvNodeCertAuthority
func WithNodeCertAuthority(ca string) Option {
return func(ctx context.Context, s *Server) error {
if ca != "" {
absca, err := filepath.Abs(ca)
@@ -345,28 +426,32 @@ func WithNodeCertAuthority(ca string) ServerOption {
}
}
func WithDatastore(ds models.Datastore) ServerOption {
// WithDatastore allows directly setting a datastore
func WithDatastore(ds models.Datastore) Option {
return func(ctx context.Context, s *Server) error {
s.datastore = ds
return nil
}
}
func WithMQ(mq models.MessageQueue) ServerOption {
// WithMQ allows directly setting an MQ
func WithMQ(mq models.MessageQueue) Option {
return func(ctx context.Context, s *Server) error {
s.mq = mq
return nil
}
}
func WithLogstore(ls models.LogStore) ServerOption {
// WithLogstore allows directly setting a logstore
func WithLogstore(ls models.LogStore) Option {
return func(ctx context.Context, s *Server) error {
s.logstore = ls
return nil
}
}
func WithAgent(agent agent.Agent) ServerOption {
// WithAgent allows directly setting an agent
func WithAgent(agent agent.Agent) Option {
return func(ctx context.Context, s *Server) error {
s.agent = agent
return nil
@@ -376,12 +461,14 @@ func WithAgent(agent agent.Agent) ServerOption {
func (s *Server) defaultRunnerPool() (pool.RunnerPool, error) {
runnerAddresses := getEnv(EnvRunnerAddresses, "")
if runnerAddresses == "" {
return nil, errors.New("Must provide FN_RUNNER_ADDRESSES when running in default load-balanced mode!")
return nil, errors.New("must provide FN_RUNNER_ADDRESSES when running in default load-balanced mode")
}
return agent.DefaultStaticRunnerPool(strings.Split(runnerAddresses, ",")), nil
}
func WithLogstoreFromDatastore() ServerOption {
// WithLogstoreFromDatastore sets the logstore to the datastore, iff
// the datastore implements the logstore interface.
func WithLogstoreFromDatastore() Option {
return func(ctx context.Context, s *Server) error {
if s.datastore == nil {
return errors.New("Need a datastore in order to use it as a logstore")
@@ -398,7 +485,7 @@ func WithLogstoreFromDatastore() ServerOption {
}
// WithFullAgent is a shorthand for WithAgent(... create a full agent here ...)
func WithFullAgent() ServerOption {
func WithFullAgent() Option {
return func(ctx context.Context, s *Server) error {
s.nodeType = ServerTypeFull
@@ -408,7 +495,7 @@ func WithFullAgent() ServerOption {
}
if s.datastore == nil || s.logstore == nil || s.mq == nil {
return errors.New("Full nodes must configure FN_DB_URL, FN_LOG_URL, FN_MQ_URL.")
return errors.New("full nodes must configure FN_DB_URL, FN_LOG_URL, FN_MQ_URL")
}
s.agent = agent.New(agent.NewCachedDataAccess(agent.NewDirectDataAccess(s.datastore, s.logstore, s.mq)))
return nil
@@ -417,15 +504,15 @@ func WithFullAgent() ServerOption {
// WithAgentFromEnv must be provided as the last server option because it relies
// on all other options being set first.
func WithAgentFromEnv() ServerOption {
func WithAgentFromEnv() Option {
return func(ctx context.Context, s *Server) error {
switch s.nodeType {
case ServerTypeAPI:
return errors.New("Should not initialize an agent for an Fn API node.")
return errors.New("should not initialize an agent for an Fn API node")
case ServerTypeRunner:
runnerURL := getEnv(EnvRunnerURL, "")
if runnerURL == "" {
return errors.New("No FN_RUNNER_API_URL provided for an Fn Runner node.")
return errors.New("no FN_RUNNER_API_URL provided for an Fn Runner node")
}
cl, err := hybrid.NewClient(runnerURL)
if err != nil {
@@ -434,10 +521,10 @@ func WithAgentFromEnv() ServerOption {
s.agent = agent.New(agent.NewCachedDataAccess(cl))
case ServerTypePureRunner:
if s.datastore != nil {
return errors.New("Pure runner nodes must not be configured with a datastore (FN_DB_URL).")
return errors.New("pure runner nodes must not be configured with a datastore (FN_DB_URL)")
}
if s.mq != nil {
return errors.New("Pure runner nodes must not be configured with a message queue (FN_MQ_URL).")
return errors.New("pure runner nodes must not be configured with a message queue (FN_MQ_URL)")
}
ds, err := hybrid.NewNopDataStore()
if err != nil {
@@ -455,13 +542,13 @@ func WithAgentFromEnv() ServerOption {
s.nodeType = ServerTypeLB
runnerURL := getEnv(EnvRunnerURL, "")
if runnerURL == "" {
return errors.New("No FN_RUNNER_API_URL provided for an Fn NuLB node.")
return errors.New("no FN_RUNNER_API_URL provided for an Fn NuLB node")
}
if s.datastore != nil {
return errors.New("NuLB nodes must not be configured with a datastore (FN_DB_URL).")
return errors.New("lb nodes must not be configured with a datastore (FN_DB_URL)")
}
if s.mq != nil {
return errors.New("NuLB nodes must not be configured with a message queue (FN_MQ_URL).")
return errors.New("lb nodes must not be configured with a message queue (FN_MQ_URL)")
}
cl, err := hybrid.NewClient(runnerURL)
@@ -499,7 +586,7 @@ func WithAgentFromEnv() ServerOption {
}
// WithExtraCtx appends a context to the list of contexts the server will watch for cancellations / errors / signals.
func WithExtraCtx(extraCtx context.Context) ServerOption {
func WithExtraCtx(extraCtx context.Context) Option {
return func(ctx context.Context, s *Server) error {
s.extraCtxs = append(s.extraCtxs, extraCtx)
return nil
@@ -507,7 +594,7 @@ func WithExtraCtx(extraCtx context.Context) ServerOption {
}
//WithTriggerAnnotator adds a trigggerEndpoint provider to the server
func WithTriggerAnnotator(provider TriggerAnnotator) ServerOption {
func WithTriggerAnnotator(provider TriggerAnnotator) Option {
return func(ctx context.Context, s *Server) error {
s.triggerAnnotator = provider
return nil
@@ -515,7 +602,7 @@ func WithTriggerAnnotator(provider TriggerAnnotator) ServerOption {
}
// WithAdminServer starts the admin server on the specified port.
func WithAdminServer(port int) ServerOption {
func WithAdminServer(port int) Option {
return func(ctx context.Context, s *Server) error {
s.AdminRouter = gin.New()
s.adminListenPort = port
@@ -525,7 +612,7 @@ func WithAdminServer(port int) ServerOption {
// New creates a new Functions server with the opts given. For convenience, users may
// prefer to use NewFromEnv but New is more flexible if needed.
func New(ctx context.Context, opts ...ServerOption) *Server {
func New(ctx context.Context, opts ...Option) *Server {
ctx, span := trace.StartSpan(ctx, "server_init")
defer span.End()
@@ -584,7 +671,8 @@ func New(ctx context.Context, opts ...ServerOption) *Server {
return s
}
func WithPrometheus() ServerOption {
// WithPrometheus activates the prometheus collection and /metrics endpoint
func WithPrometheus() Option {
return func(ctx context.Context, s *Server) error {
reg := promclient.NewRegistry()
reg.MustRegister(promclient.NewProcessCollector(os.Getpid(), "fn"),
@@ -614,7 +702,8 @@ func WithPrometheus() ServerOption {
}
}
func WithJaeger(jaegerURL string) ServerOption {
// WithJaeger maps EnvJaegerURL
func WithJaeger(jaegerURL string) Option {
return func(ctx context.Context, s *Server) error {
// ex: "http://localhost:14268"
if jaegerURL == "" {
@@ -637,7 +726,8 @@ func WithJaeger(jaegerURL string) ServerOption {
}
}
func WithZipkin(zipkinURL string) ServerOption {
// WithZipkin maps EnvZipkinURL
func WithZipkin(zipkinURL string) Option {
return func(ctx context.Context, s *Server) error {
// ex: "http://zipkin:9411/api/v2/spans"
@@ -794,6 +884,8 @@ func extractFields(c *gin.Context) logrus.Fields {
return fields
}
// Start runs any configured machinery, including the http server, agent, etc.
// Start will block until the context is cancelled or times out.
func (s *Server) Start(ctx context.Context) {
newctx, cancel := contextWithSignal(ctx, os.Interrupt, syscall.SIGTERM)
s.startGears(newctx, cancel)
@@ -1008,11 +1100,12 @@ func (s *Server) bindHandlers(ctx context.Context) {
}
// implements fnext.ExtServer
// Datastore implements fnext.ExtServer
func (s *Server) Datastore() models.Datastore {
return s.datastore
}
// Agent implements fnext.ExtServer
func (s *Server) Agent() agent.Agent {
return s.agent
}

17
api/server/server_options.go
View File

@@ -10,15 +10,18 @@ import (
"github.com/sirupsen/logrus"
)
type ServerOption func(context.Context, *Server) error
// Option is a func that allows configuring a Server
type Option func(context.Context, *Server) error
//RIDProvider is used to manage request ID
// RIDProvider is used to generate request IDs
type RIDProvider struct {
HeaderName string //The name of the header where the reques id is stored in the incoming request
HeaderName string // The name of the header where the reques id is stored in the incoming request
RIDGenerator func(string) string // Function to generate the requestID
}
func WithRIDProvider(ridProvider *RIDProvider) ServerOption {
// WithRIDProvider will generate request ids for each http request using the
// given generator.
func WithRIDProvider(ridProvider *RIDProvider) Option {
return func(ctx context.Context, s *Server) error {
s.Router.Use(withRIDProvider(ridProvider))
return nil
@@ -37,14 +40,16 @@ func withRIDProvider(ridp *RIDProvider) func(c *gin.Context) {
}
}
func EnableShutdownEndpoint(ctx context.Context, halt context.CancelFunc) ServerOption {
// EnableShutdownEndpoint adds /shutdown to initiate a shutdown of an fn server.
func EnableShutdownEndpoint(ctx context.Context, halt context.CancelFunc) Option {
return func(ctx context.Context, s *Server) error {
s.Router.GET("/shutdown", s.handleShutdown(halt))
return nil
}
}
func LimitRequestBody(max int64) ServerOption {
// LimitRequestBody wraps every http request to limit its size to the specified max bytes.
func LimitRequestBody(max int64) Option {
return func(ctx context.Context, s *Server) error {
s.Router.Use(limitRequestBody(max))
return nil

2
api/server/server_test.go
View File

@@ -26,7 +26,7 @@ import (
var tmpDatastoreTests = "/tmp/func_test_datastore.db"
func testServer(ds models.Datastore, mq models.MessageQueue, logDB models.LogStore, rnr agent.Agent, nodeType ServerNodeType) *Server {
func testServer(ds models.Datastore, mq models.MessageQueue, logDB models.LogStore, rnr agent.Agent, nodeType NodeType) *Server {
return New(context.Background(),
WithLogLevel(getEnv(EnvLogLevel, DefaultLogLevel)),
WithDatastore(ds),

12
api/server/stats.go
View File

@@ -23,7 +23,7 @@ var (
)
var (
ApiRequestCountView = &view.View{
apiRequestCountView = &view.View{
Name: "api/request_count",
Description: "Count of API requests started",
Measure: apiRequestCount,
@@ -31,7 +31,7 @@ var (
Aggregation: view.Count(),
}
ApiResponseCountView = &view.View{
apiResponseCountView = &view.View{
Name: "api/response_count",
Description: "API response count",
TagKeys: []tag.Key{pathKey, methodKey, statusKey},
@@ -39,7 +39,7 @@ var (
Aggregation: view.Count(),
}
ApiLatencyView = &view.View{
apiLatencyView = &view.View{
Name: "api/latency",
Description: "Latency distribution of API requests",
Measure: apiLatency,
@@ -50,9 +50,9 @@ var (
func registerViews() {
err := view.Register(
ApiRequestCountView,
ApiResponseCountView,
ApiLatencyView,
apiRequestCountView,
apiResponseCountView,
apiLatencyView,
)
if err != nil {
logrus.WithError(err).Fatal("cannot register view")

4
examples/apps/blog/func.go
View File

@@ -6,12 +6,12 @@ import (
"os"
)
type Person struct {
type person struct {
Name string
}
func main() {
p := &Person{Name: "World"}
p := &person{Name: "World"}
json.NewDecoder(os.Stdin).Decode(p)
mapD := map[string]string{
"message": fmt.Sprintf("Hello %s", p.Name),

12
examples/apps/hellos/func.go
View File

@@ -7,7 +7,7 @@ import (
"os"
)
type Link struct {
type link struct {
Text string
Href string
}
@@ -42,14 +42,14 @@ func main() {
data := struct {
Title string
Body string
Items []Link
Items []link
}{
Title: "My App",
Body: "This is my app. It may not be the best app, but it's my app. And it's multilingual!",
Items: []Link{
Link{"Ruby", fmt.Sprintf("/r/%s/ruby", appName)},
Link{"Node", fmt.Sprintf("/r/%s/node", appName)},
Link{"Python", fmt.Sprintf("/r/%s/python", appName)},
Items: []link{
link{"Ruby", fmt.Sprintf("/r/%s/ruby", appName)},
link{"Node", fmt.Sprintf("/r/%s/node", appName)},
link{"Python", fmt.Sprintf("/r/%s/python", appName)},
},
}

33
examples/extensions/main.go
View File

@@ -15,51 +15,48 @@ func main() {
funcServer := server.NewFromEnv(ctx)
// Setup your custom extensions, listeners, etc here
funcServer.AddEndpoint("GET", "/custom1", &Custom1Handler{})
funcServer.AddEndpoint("GET", "/custom1", &custom1Handler{})
funcServer.AddEndpointFunc("GET", "/custom2", func(w http.ResponseWriter, r *http.Request) {
// fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path))
fmt.Println("Custom2Handler called")
fmt.Println("custom2Handler called")
fmt.Fprintf(w, "Hello func, %q", html.EscapeString(r.URL.Path))
})
// the following will be at /v1/apps/:app_name/custom2
funcServer.AddAppEndpoint("GET", "/custom3", &Custom3Handler{})
funcServer.AddAppEndpoint("GET", "/custom3", &custom3Handler{})
funcServer.AddAppEndpointFunc("GET", "/custom4", func(w http.ResponseWriter, r *http.Request, app *models.App) {
// fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path))
fmt.Println("Custom4Handler called")
fmt.Println("custom4Handler called")
fmt.Fprintf(w, "Hello app %v func, %q", app.Name, html.EscapeString(r.URL.Path))
})
// the following will be at /v1/apps/:app_name/routes/:route_name/custom5
// and /v1/apps/:app_name/routes/:route_name/custom6
funcServer.AddRouteEndpoint("GET", "/custom5", &Custom5Handler{})
funcServer.AddRouteEndpoint("GET", "/custom5", &custom5Handler{})
funcServer.AddRouteEndpointFunc("GET", "/custom6", func(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route) {
// fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path))
fmt.Println("Custom6Handler called")
fmt.Println("custom6Handler called")
fmt.Fprintf(w, "Hello app %v, route %v, request %q", app.Name, route.Path, html.EscapeString(r.URL.Path))
})
funcServer.Start(ctx)
}
type Custom1Handler struct {
}
type custom1Handler struct{}
func (h *Custom1Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
fmt.Println("Custom1Handler called")
func (h *custom1Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
fmt.Println("custom1Handler called")
fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path))
}
type Custom3Handler struct {
}
type custom3Handler struct{}
func (h *Custom3Handler) ServeHTTP(w http.ResponseWriter, r *http.Request, app *models.App) {
fmt.Println("Custom3Handler called")
func (h *custom3Handler) ServeHTTP(w http.ResponseWriter, r *http.Request, app *models.App) {
fmt.Println("custom3Handler called")
fmt.Fprintf(w, "Hello app %v, %q", app.Name, html.EscapeString(r.URL.Path))
}
type Custom5Handler struct {
}
type custom5Handler struct{}
func (h *Custom5Handler) ServeHTTP(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route) {
fmt.Println("Custom5Handler called")
func (h *custom5Handler) ServeHTTP(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route) {
fmt.Println("custom5Handler called")
fmt.Fprintf(w, "Hello! app %v, route %v, request %q", app.Name, route.Path, html.EscapeString(r.URL.Path))
}

4
examples/inputs/func.go
View File

@@ -6,12 +6,12 @@ import (
"os"
)
type Person struct {
type person struct {
Name string
}
func main() {
p := &Person{Name: "World"}
p := &person{Name: "World"}
json.NewDecoder(os.Stdin).Decode(p)
mapD := map[string]string{"message": fmt.Sprintf("Hello %s", p.Name)}
mapD["SECRET_1"] = os.Getenv("SECRET_1")

11
examples/middleware/main.go
View File

@@ -25,15 +25,14 @@ func main() {
})
})
funcServer.AddMiddleware(&CustomMiddleware{})
funcServer.AddMiddleware(&customMiddleware{})
funcServer.Start(ctx)
}
type CustomMiddleware struct {
}
type customMiddleware struct{}
func (h *CustomMiddleware) Handle(next http.Handler) http.Handler {
func (h *customMiddleware) Handle(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
fmt.Println("CustomMiddleware called")
@@ -48,7 +47,9 @@ func (h *CustomMiddleware) Handle(next http.Handler) http.Handler {
return
}
fmt.Println("auth succeeded!")
r = r.WithContext(context.WithValue(r.Context(), "user", "I'm in!"))
r = r.WithContext(context.WithValue(r.Context(), contextKey("user"), "I'm in!"))
next.ServeHTTP(w, r)
})
}
type contextKey string

11
examples/tutorial/async/go/func.go
View File

@@ -7,19 +7,12 @@ import (
"os"
)
type Person struct {
type person struct {
Name string
}
func main() {
// b, err := ioutil.ReadAll(os.Stdin)
// if err != nil {
// log.Fatal(err)
// }
// fmt.Printf("BODY!!! %s", string(b))
p := &Person{Name: "World"}
p := &person{Name: "World"}
json.NewDecoder(os.Stdin).Decode(p)
fmt.Printf("Hello %v!\n", p.Name)

4
examples/tutorial/hello/go/func.go
View File

@@ -7,12 +7,12 @@ import (
"os"
)
type Person struct {
type person struct {
Name string
}
func main() {
p := &Person{Name: "World"}
p := &person{Name: "World"}
json.NewDecoder(os.Stdin).Decode(p)
mapD := map[string]string{"message": fmt.Sprintf("Hello %s", p.Name)}
mapB, _ := json.Marshal(mapD)

4
examples/tutorial/hello/go/usingdeps/func.go
View File

@@ -7,12 +7,12 @@ import (
"github.com/sirupsen/logrus"
)
type Person struct {
type person struct {
Name string
}
func main() {
p := &Person{Name: "World"}
p := &person{Name: "World"}
json.NewDecoder(os.Stdin).Decode(p)
logrus.Printf("Hello %v!\n", p.Name)

8
examples/tutorial/logging/main.go
View File

@@ -9,11 +9,11 @@ import (
const lBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
type OutputSize struct {
type outputSize struct {
Size int `json:"size"`
}
func RandStringBytes(n int) string {
func randStringBytes(n int) string {
b := make([]byte, n)
for i := range b {
b[i] = lBytes[rand.Intn(len(lBytes))]
@@ -22,7 +22,7 @@ func RandStringBytes(n int) string {
}
func main() {
out := &OutputSize{Size: 64 * 1024}
out := &outputSize{Size: 64 * 1024}
json.NewDecoder(os.Stdin).Decode(out)
fmt.Fprintln(os.Stderr, RandStringBytes(out.Size))
fmt.Fprintln(os.Stderr, randStringBytes(out.Size))
}

26
fnext/api.go
View File

@@ -6,38 +6,46 @@ import (
"github.com/fnproject/fn/api/models"
)
type ApiHandlerFunc func(w http.ResponseWriter, r *http.Request)
// APIHandlerFunc is a convenience to make an APIHandler.
type APIHandlerFunc func(w http.ResponseWriter, r *http.Request)
// ServeHTTP calls f(w, r).
func (f ApiHandlerFunc) ServeHTTP(w http.ResponseWriter, r *http.Request) {
func (f APIHandlerFunc) ServeHTTP(w http.ResponseWriter, r *http.Request) {
f(w, r)
}
type ApiHandler interface {
// APIHandler may be used to add an http endpoint on the versioned route of the Fn API.
type APIHandler interface {
// Handle(ctx context.Context)
ServeHTTP(w http.ResponseWriter, r *http.Request)
}
type ApiAppHandler interface {
// APIAppHandler may be used to add an http endpoint on the versioned route of fn API,
// at /:version/apps/:app
type APIAppHandler interface {
// Handle(ctx context.Context)
ServeHTTP(w http.ResponseWriter, r *http.Request, app *models.App)
}
type ApiAppHandlerFunc func(w http.ResponseWriter, r *http.Request, app *models.App)
// APIAppHandlerFunc is a convenience for getting an APIAppHandler.
type APIAppHandlerFunc func(w http.ResponseWriter, r *http.Request, app *models.App)
// ServeHTTP calls f(w, r).
func (f ApiAppHandlerFunc) ServeHTTP(w http.ResponseWriter, r *http.Request, app *models.App) {
func (f APIAppHandlerFunc) ServeHTTP(w http.ResponseWriter, r *http.Request, app *models.App) {
f(w, r, app)
}
type ApiRouteHandler interface {
// APIRouteHandler may be used to add an http endpoint on the versioned route of fn API,
// at /:version/apps/:app/routes/:route
type APIRouteHandler interface {
// Handle(ctx context.Context)
ServeHTTP(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route)
}
type ApiRouteHandlerFunc func(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route)
// APIRouteHandlerFunc is a convenience for getting an APIRouteHandler.
type APIRouteHandlerFunc func(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route)
// ServeHTTP calls f(w, r).
func (f ApiRouteHandlerFunc) ServeHTTP(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route) {
func (f APIRouteHandlerFunc) ServeHTTP(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route) {
f(w, r, app, route)
}

2
fnext/datastore.go
View File

@@ -6,6 +6,8 @@ import (
"github.com/fnproject/fn/api/models"
)
// NewDatastore returns a Datastore that wraps the provided Datastore, calling any relevant
// listeners around any of the Datastore methods.
func NewDatastore(ds models.Datastore, al AppListener, rl RouteListener, fl FnListener, tl TriggerListener) models.Datastore {
return &extds{
Datastore: ds,

5
fnext/listeners.go
View File

@@ -6,7 +6,7 @@ import (
"github.com/fnproject/fn/api/models"
)
// AppListener is an interface used to inject custom code at key points in app lifecycle.
// AppListener is an interface used to inject custom code at key points in the app lifecycle.
type AppListener interface {
// BeforeAppCreate called right before creating App in the database
BeforeAppCreate(ctx context.Context, app *models.App) error
@@ -41,6 +41,7 @@ type AppListener interface {
// }
}
// RouteListener is an interface used to inject custom code at key points in the route lifecycle.
type RouteListener interface {
// BeforeRouteCreate called before route created in the datastore
BeforeRouteCreate(ctx context.Context, route *models.Route) error
@@ -88,7 +89,7 @@ type TriggerListener interface {
AfterTriggerDelete(ctx context.Context, triggerId string) error
}
// CallListener enables callbacks around Call events
// CallListener enables callbacks around Call events.
type CallListener interface {
// BeforeCall called before a function is executed
BeforeCall(ctx context.Context, call *models.Call) error

13
fnext/setup.go
View File

@@ -6,14 +6,19 @@ import (
"github.com/fnproject/fn/api/models"
)
// Extension is the interface that all extensions must implement in order
// to configure themselves against an ExtServer.
type Extension interface {
Name() string
Setup(s ExtServer) error
}
// NOTE: ExtServer limits what the extension should do and prevents dependency loop
// ExtServer limits what the extension should do and prevents dependency loop, it can be
// used to alter / modify / add the behavior of fn server.
type ExtServer interface {
// AddAppListener adds a listener that will be invoked around any relevant methods.
AddAppListener(listener AppListener)
// AddCallListener adds a listener that will be invoked around any call invocations.
AddCallListener(listener CallListener)
// AddAPIMiddleware add middleware
@@ -26,15 +31,15 @@ type ExtServer interface {
AddRootMiddlewareFunc(m MiddlewareFunc)
// AddEndpoint adds an endpoint to /v1/x
AddEndpoint(method, path string, handler ApiHandler)
AddEndpoint(method, path string, handler APIHandler)
// AddEndpoint adds an endpoint to /v1/x
AddEndpointFunc(method, path string, handler func(w http.ResponseWriter, r *http.Request))
// AddAppEndpoint adds an endpoints to /v1/apps/:app/x
AddAppEndpoint(method, path string, handler ApiAppHandler)
AddAppEndpoint(method, path string, handler APIAppHandler)
// AddAppEndpoint adds an endpoints to /v1/apps/:app/x
AddAppEndpointFunc(method, path string, handler func(w http.ResponseWriter, r *http.Request, app *models.App))
// AddRouteEndpoint adds an endpoints to /v1/apps/:app/routes/:route/x
AddRouteEndpoint(method, path string, handler ApiRouteHandler)
AddRouteEndpoint(method, path string, handler APIRouteHandler)
// AddRouteEndpoint adds an endpoints to /v1/apps/:app/routes/:route/x
AddRouteEndpointFunc(method, path string, handler func(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route))

25
images/fn-test-utils/fn-test-utils.go
View File

@@ -19,9 +19,12 @@ import (
)
const (
// InvalidResponseStr is a string that isn't one of the 'hot' formats.
InvalidResponseStr = "Olive oil is a liquid fat obtained from olives...\n"
)
// AppRequest is the body of the input of a function, it can be used to change
// behavior of this function.
type AppRequest struct {
// if specified we 'sleep' the specified msecs
SleepTime int `json:"sleepTime,omitempty"`
@@ -69,12 +72,13 @@ type AppRequest struct {
// TODO: infinite loop
}
// ever growing memory leak chunks
// Leaks are ever growing memory leak chunks
var Leaks []*[]byte
// memory to hold on to at every request, new requests overwrite it.
// Hold is memory to hold on to at every request, new requests overwrite it.
var Hold []byte
// AppResponse is the output of this function, in JSON
type AppResponse struct {
Request AppRequest `json:"request"`
Headers http.Header `json:"header"`
@@ -89,12 +93,13 @@ func init() {
func getTotalLeaks() int {
total := 0
for idx, _ := range Leaks {
for idx := range Leaks {
total += len(*(Leaks[idx]))
}
return total
}
// AppHandler is the fdk.Handler used by this package
func AppHandler(ctx context.Context, in io.Reader, out io.Writer) {
req, resp := processRequest(ctx, in)
@@ -208,7 +213,7 @@ func processRequest(ctx context.Context, in io.Reader) (*AppRequest, *AppRespons
if request.IsDebug {
info := getDockerInfo()
log.Printf("DockerInfo %+v", info)
data["DockerId"] = info.Id
data["DockerId"] = info.ID
data["DockerHostname"] = info.Hostname
}
@@ -451,7 +456,7 @@ func testDoHTTPOnce(ctx context.Context, in io.Reader, out io.Writer, buf *bytes
func getChunk(size int) []byte {
chunk := make([]byte, size)
// fill it
for idx, _ := range chunk {
for idx := range chunk {
chunk[idx] = 1
}
return chunk
@@ -503,13 +508,13 @@ func createFile(name string, size int) error {
return nil
}
type DockerInfo struct {
type dockerInfo struct {
Hostname string
Id string
ID string
}
func getDockerInfo() DockerInfo {
var info DockerInfo
func getDockerInfo() dockerInfo {
var info dockerInfo
info.Hostname, _ = os.Hostname()
@@ -530,7 +535,7 @@ func getDockerInfo() DockerInfo {
tokens := bytes.Split(line, []byte("/"))
tokLen := len(tokens)
if tokLen >= 3 && bytes.Compare(tokens[tokLen-2], []byte("docker")) == 0 {
info.Id = string(tokens[tokLen-1])
info.ID = string(tokens[tokLen-1])
break
}
}

4
images/hello/hello.go
View File

@@ -6,7 +6,7 @@ import (
"os"
)
type Person struct {
type person struct {
Name string
}
@@ -15,7 +15,7 @@ func main() {
if n == "" {
n = "World"
}
p := &Person{Name: n}
p := &person{Name: n}
json.NewDecoder(os.Stdin).Decode(p)
fmt.Printf("Hello %v!\n", p.Name)
}

10
test/fn-system-tests/system_test.go
View File

@@ -57,7 +57,7 @@ type state struct {
cancel func()
}
func SetUpSystem() (*state, error) {
func setUpSystem() (*state, error) {
ctx, cancel := context.WithCancel(context.Background())
state := &state{
cancel: cancel,
@@ -175,7 +175,7 @@ func SetUpAPINode(ctx context.Context) (*server.Server, error) {
defaultDB = fmt.Sprintf("sqlite3://%s/data/fn.db", curDir)
defaultMQ = fmt.Sprintf("bolt://%s/data/fn.mq", curDir)
nodeType := server.ServerTypeAPI
opts := make([]server.ServerOption, 0)
opts := make([]server.Option, 0)
opts = append(opts, server.WithWebPort(8085))
opts = append(opts, server.WithType(nodeType))
opts = append(opts, server.WithLogLevel(getEnv(server.EnvLogLevel, server.DefaultLogLevel)))
@@ -191,7 +191,7 @@ func SetUpAPINode(ctx context.Context) (*server.Server, error) {
func SetUpLBNode(ctx context.Context) (*server.Server, error) {
nodeType := server.ServerTypeLB
opts := make([]server.ServerOption, 0)
opts := make([]server.Option, 0)
opts = append(opts, server.WithWebPort(8081))
opts = append(opts, server.WithType(nodeType))
opts = append(opts, server.WithLogLevel(getEnv(server.EnvLogLevel, server.DefaultLogLevel)))
@@ -235,7 +235,7 @@ func SetUpLBNode(ctx context.Context) (*server.Server, error) {
func SetUpPureRunnerNode(ctx context.Context, nodeNum int) (*server.Server, error) {
nodeType := server.ServerTypePureRunner
opts := make([]server.ServerOption, 0)
opts := make([]server.Option, 0)
opts = append(opts, server.WithWebPort(8082+nodeNum))
opts = append(opts, server.WithGRPCPort(9190+nodeNum))
opts = append(opts, server.WithType(nodeType))
@@ -335,7 +335,7 @@ func whoAmI() net.IP {
}
func TestMain(m *testing.M) {
state, err := SetUpSystem()
state, err := setUpSystem()
if err != nil {
logrus.WithError(err).Fatal("Could not initialize system")
os.Exit(1)