Move packages to proejct/pkg to follow go project folder structure convention (#1190)

2019-05-31 16:28:55 +08:00
parent 1c5fd92ad6
commit a0e9a39511
196 changed files with 1672 additions and 1716 deletions
@@ -0,0 +1,271 @@
+/*
+Copyright 2016 The Fission Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package controller
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/http/httputil"
+	"net/url"
+	"sort"
+
+	"github.com/gorilla/mux"
+	"go.uber.org/zap"
+	apiv1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	restclient "k8s.io/client-go/rest"
+
+	fv1 "github.com/fission/fission/pkg/apis/fission.io/v1"
+	ferror "github.com/fission/fission/pkg/error"
+)
+
+func (a *API) getIstioServiceLabels(fnName string) map[string]string {
+	return map[string]string{
+		"functionName": fnName,
+	}
+}
+
+func (a *API) FunctionApiList(w http.ResponseWriter, r *http.Request) {
+	ns := a.extractQueryParamFromRequest(r, "namespace")
+	if len(ns) == 0 {
+		ns = metav1.NamespaceAll
+	}
+
+	funcs, err := a.fissionClient.Functions(ns).List(metav1.ListOptions{})
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	resp, err := json.Marshal(funcs.Items)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	a.respondWithSuccess(w, resp)
+}
+
+func (a *API) FunctionApiCreate(w http.ResponseWriter, r *http.Request) {
+	body, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	var f fv1.Function
+	err = json.Unmarshal(body, &f)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	// check if namespace exists, if not create it.
+	err = a.createNsIfNotExists(f.Metadata.Namespace)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	fnew, err := a.fissionClient.Functions(f.Metadata.Namespace).Create(&f)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	resp, err := json.Marshal(fnew.Metadata)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	w.WriteHeader(http.StatusCreated)
+	a.respondWithSuccess(w, resp)
+}
+
+func (a *API) FunctionApiGet(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	name := vars["function"]
+	ns := a.extractQueryParamFromRequest(r, "namespace")
+	if len(ns) == 0 {
+		ns = metav1.NamespaceDefault
+	}
+
+	f, err := a.fissionClient.Functions(ns).Get(name)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	resp, err := json.Marshal(f)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+	a.respondWithSuccess(w, resp)
+}
+
+func (a *API) FunctionApiUpdate(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	name := vars["function"]
+
+	body, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	var f fv1.Function
+	err = json.Unmarshal(body, &f)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	if name != f.Metadata.Name {
+		err = ferror.MakeError(ferror.ErrorInvalidArgument, "Function name doesn't match URL")
+		a.respondWithError(w, err)
+		return
+	}
+
+	fnew, err := a.fissionClient.Functions(f.Metadata.Namespace).Update(&f)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	resp, err := json.Marshal(fnew.Metadata)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+	a.respondWithSuccess(w, resp)
+}
+
+func (a *API) FunctionApiDelete(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	name := vars["function"]
+	ns := a.extractQueryParamFromRequest(r, "namespace")
+	if len(ns) == 0 {
+		ns = metav1.NamespaceDefault
+	}
+
+	err := a.fissionClient.Functions(ns).Delete(name, &metav1.DeleteOptions{})
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	a.respondWithSuccess(w, []byte(""))
+}
+
+// FunctionLogsApiPost establishes a proxy server to log database, and redirect
+// query command send from client to database then proxy back the db response.
+func (a *API) FunctionLogsApiPost(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	// get dbType from url
+	dbType := vars["dbType"]
+
+	// find correspond db http url
+	dbCnf := a.getLogDBConfig(dbType)
+
+	svcUrl, err := url.Parse(dbCnf.httpURL)
+	if err != nil {
+		a.logger.Error("failed parse url to establish proxy to database for function logs",
+			zap.Error(err),
+			zap.String("database_url", dbCnf.httpURL))
+	}
+	// set up proxy server director
+	director := func(req *http.Request) {
+		// only replace url Scheme and Host to remote influxDB
+		// and leave query string intact
+		req.URL.Scheme = svcUrl.Scheme
+		req.URL.Host = svcUrl.Host
+		req.URL.Path = svcUrl.Path
+		// set up http basic auth for database authentication
+		req.SetBasicAuth(dbCnf.username, dbCnf.password)
+	}
+	proxy := &httputil.ReverseProxy{
+		Director: director,
+	}
+	proxy.ServeHTTP(w, r)
+}
+
+// FunctionPodLogs : Get logs for a function directly from pod
+func (a *API) FunctionPodLogs(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	fnName := vars["function"]
+	ns := vars["namespace"]
+
+	if len(ns) == 0 {
+		ns = "fission-function"
+	}
+
+	f, err := a.fissionClient.Functions(ns).Get(fnName)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+	envName := f.Spec.Environment.Name
+
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	// Get function Pods first
+	selector := "functionName=" + fnName
+	podList, err := a.kubernetesClient.CoreV1().Pods(ns).List(metav1.ListOptions{LabelSelector: selector})
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	// Get the logs for last Pod executed
+	pods := podList.Items
+	sort.Slice(pods, func(i, j int) bool {
+		itime := pods[i].ObjectMeta.CreationTimestamp.Time
+		jtime := pods[j].ObjectMeta.CreationTimestamp.Time
+		return itime.After(jtime)
+	})
+
+	podLogOpts := apiv1.PodLogOptions{Container: envName} // Only the env container, not fetcher
+	var podLogsReq *restclient.Request
+	if len(pods) > 0 {
+		podLogsReq = a.kubernetesClient.CoreV1().Pods(ns).GetLogs(pods[0].ObjectMeta.Name, &podLogOpts)
+	} else {
+		a.respondWithError(w, errors.New("No active pods found"))
+		return
+	}
+
+	podLogs, err := podLogsReq.Stream()
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+	defer podLogs.Close()
+
+	_, err = io.Copy(w, podLogs)
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+	return
+}