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/*
* Copyright 2020 Intel Corporation, Inc
*
* 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 context
import (
"encoding/json"
"fmt"
"log"
"sync"
"strings"
"github.com/onap/multicloud-k8s/src/orchestrator/pkg/appcontext"
pkgerrors "github.com/pkg/errors"
res "github.com/onap/multicloud-k8s/src/rsync/pkg/resource"
con "github.com/onap/multicloud-k8s/src/rsync/pkg/connector"
"github.com/onap/multicloud-k8s/src/rsync/pkg/app"
)
type CompositeAppContext struct {
cid interface{}
appsorder string
appsdependency string
appsmap []instMap
}
type clusterInfo struct {
name string
resorder string
resdependency string
ressmap []instMap
}
type instMap struct {
name string
depinfo string
status string
rerr error
clusters []clusterInfo
}
func getInstMap(order string, dependency string, level string) ([]instMap, error) {
if order == "" {
return nil, pkgerrors.Errorf("Not a valid order value")
}
if dependency == "" {
return nil, pkgerrors.Errorf("Not a valid dependency value")
}
if !(level == "app" || level == "res") {
return nil, pkgerrors.Errorf("Not a valid level name given to create map")
}
var aov map[string]interface{}
json.Unmarshal([]byte(order), &aov)
s := fmt.Sprintf("%vorder", level)
appso := aov[s].([]interface{})
var instmap = make([]instMap, len(appso))
var adv map[string]interface{}
json.Unmarshal([]byte(dependency), &adv)
s = fmt.Sprintf("%vdependency", level)
appsd := adv[s].(map[string]interface{})
for i, u := range appso {
instmap[i] = instMap{u.(string), appsd[u.(string)].(string), "none", nil, nil}
}
return instmap, nil
}
func deleteResource(clustername string, resname string, respath string) error {
k8sClient := app.KubernetesClient{}
err := k8sClient.Init(clustername, resname)
if err != nil {
log.Println("Init failed: " + err.Error())
return err
}
var c con.KubernetesConnector
c = &k8sClient
var gp res.Resource
err = gp.Delete(respath, resname, "default", c)
if err != nil {
log.Println("Delete resource failed: " + err.Error() + resname)
return err
}
log.Println("Resource succesfully deleted", resname)
return nil
}
func createResource(clustername string, resname string, respath string) error {
k8sClient := app.KubernetesClient{}
err := k8sClient.Init(clustername, resname)
if err != nil {
log.Println("Client init failed: " + err.Error())
return err
}
var c con.KubernetesConnector
c = &k8sClient
var gp res.Resource
_, err = gp.Create(respath,"default", c)
if err != nil {
log.Println("Create failed: " + err.Error() + resname)
return err
}
log.Println("Resource succesfully created", resname)
return nil
}
func terminateResource(ac appcontext.AppContext, resmap instMap, appname string, clustername string) error {
rh, err := ac.GetResourceHandle(appname, clustername, resmap.name)
if err != nil {
return err
}
resval, err := ac.GetValue(rh)
if err != nil {
return err
}
if resval != "" {
result := strings.Split(resmap.name, "+")
if result[0] == "" {
return pkgerrors.Errorf("Resource name is nil")
}
err = deleteResource(clustername, result[0], resval.(string))
if err != nil {
return err
}
} else {
return pkgerrors.Errorf("Resource value is nil")
}
return nil
}
func instantiateResource(ac appcontext.AppContext, resmap instMap, appname string, clustername string) error {
rh, err := ac.GetResourceHandle(appname, clustername, resmap.name)
if err != nil {
return err
}
resval, err := ac.GetValue(rh)
if err != nil {
return err
}
if resval != "" {
result := strings.Split(resmap.name, "+")
if result[0] == "" {
return pkgerrors.Errorf("Resource name is nil")
}
err = createResource(clustername, result[0], resval.(string))
if err != nil {
return err
}
} else {
return pkgerrors.Errorf("Resource value is nil")
}
return nil
}
func terminateResources(ac appcontext.AppContext, ressmap []instMap, appname string, clustername string) error {
var wg sync.WaitGroup
var chans = make([]chan int, len(ressmap))
for l := range chans {
chans[l] = make(chan int)
}
for i:=0; i<len(ressmap); i++ {
wg.Add(1)
go func(index int) {
if ressmap[index].depinfo == "go" {
ressmap[index].status = "start"
} else {
ressmap[index].status = "waiting"
c := <- chans[index]
if c != index {
ressmap[index].status = "error"
ressmap[index].rerr = pkgerrors.Errorf("channel does not match")
wg.Done()
return
}
ressmap[index].status = "start"
}
ressmap[index].rerr = terminateResource(ac, ressmap[index], appname, clustername)
ressmap[index].status = "done"
waitstr := fmt.Sprintf("wait on %v",ressmap[index].name)
for j:=0; j<len(ressmap); j++ {
if ressmap[j].depinfo == waitstr {
chans[j] <- j
}
}
wg.Done()
}(i)
}
wg.Wait()
for k:=0; k<len(ressmap); k++ {
if ressmap[k].rerr != nil {
return pkgerrors.Errorf("error during resources termination")
}
}
return nil
}
func instantiateResources(ac appcontext.AppContext, ressmap []instMap, appname string, clustername string) error {
var wg sync.WaitGroup
var chans = make([]chan int, len(ressmap))
for l := range chans {
chans[l] = make(chan int)
}
for i:=0; i<len(ressmap); i++ {
wg.Add(1)
go func(index int) {
if ressmap[index].depinfo == "go" {
ressmap[index].status = "start"
} else {
ressmap[index].status = "waiting"
c := <- chans[index]
if c != index {
ressmap[index].status = "error"
ressmap[index].rerr = pkgerrors.Errorf("channel does not match")
wg.Done()
return
}
ressmap[index].status = "start"
}
ressmap[index].rerr = instantiateResource(ac, ressmap[index], appname, clustername)
ressmap[index].status = "done"
waitstr := fmt.Sprintf("wait on %v",ressmap[index].name)
for j:=0; j<len(ressmap); j++ {
if ressmap[j].depinfo == waitstr {
chans[j] <- j
}
}
wg.Done()
}(i)
}
wg.Wait()
for k:=0; k<len(ressmap); k++ {
if ressmap[k].rerr != nil {
return pkgerrors.Errorf("error during resources instantiation")
}
}
return nil
}
func terminateApp(ac appcontext.AppContext, appmap instMap) error {
for i:=0; i<len(appmap.clusters); i++ {
err := terminateResources(ac, appmap.clusters[i].ressmap, appmap.name,
appmap.clusters[i].name)
if err != nil {
return err
}
}
log.Println("Termination of app done: " + appmap.name)
return nil
}
func instantiateApp(ac appcontext.AppContext, appmap instMap) error {
for i:=0; i<len(appmap.clusters); i++ {
err := instantiateResources(ac, appmap.clusters[i].ressmap, appmap.name,
appmap.clusters[i].name)
if err != nil {
return err
}
}
log.Println("Instantiation of app done: " + appmap.name)
return nil
}
func instantiateApps(ac appcontext.AppContext, appsmap []instMap) error {
var wg sync.WaitGroup
var chans = make([]chan int, len(appsmap))
for l := range chans {
chans[l] = make(chan int)
}
for i:=0; i<len(appsmap); i++ {
wg.Add(1)
go func(index int) {
if appsmap[index].depinfo == "go" {
appsmap[index].status = "start"
} else {
appsmap[index].status = "waiting"
c := <- chans[index]
if c != index {
appsmap[index].status = "error"
appsmap[index].rerr = pkgerrors.Errorf("channel does not match")
wg.Done()
return
}
appsmap[index].status = "start"
}
appsmap[index].rerr = instantiateApp(ac, appsmap[index])
appsmap[index].status = "done"
waitstr := fmt.Sprintf("wait on %v",appsmap[index].name)
for j:=0; j<len(appsmap); j++ {
if appsmap[j].depinfo == waitstr {
chans[j] <- j
}
}
wg.Done()
}(i)
}
wg.Wait()
for k:=0; k<len(appsmap); k++ {
if appsmap[k].rerr != nil {
return pkgerrors.Errorf("error during apps instantiation")
}
}
return nil
}
func (instca *CompositeAppContext) InstantiateComApp(cid interface{}) error {
ac := appcontext.AppContext{}
_, err := ac.LoadAppContext(cid)
if err != nil {
return err
}
instca.cid = cid
appsorder, err := ac.GetAppInstruction("order")
if err != nil {
return err
}
instca.appsorder = appsorder.(string)
appsdependency, err := ac.GetAppInstruction("dependency")
if err != nil {
return err
}
instca.appsdependency = appsdependency.(string)
instca.appsmap, err = getInstMap(instca.appsorder,instca.appsdependency, "app")
if err != nil {
return err
}
for j:=0; j<len(instca.appsmap); j++ {
clusternames, err := ac.GetClusterNames(instca.appsmap[j].name)
if err != nil {
return err
}
instca.appsmap[j].clusters = make([]clusterInfo, len(clusternames))
for k:=0; k<len(clusternames); k++ {
instca.appsmap[j].clusters[k].name = clusternames[k]
resorder, err := ac.GetResourceInstruction(
instca.appsmap[j].name, clusternames[k], "order")
if err != nil {
return err
}
instca.appsmap[j].clusters[k].resorder = resorder.(string)
resdependency, err := ac.GetResourceInstruction(
instca.appsmap[j].name, clusternames[k], "dependency")
if err != nil {
return err
}
instca.appsmap[j].clusters[k].resdependency = resdependency.(string)
instca.appsmap[j].clusters[k].ressmap, err = getInstMap(
instca.appsmap[j].clusters[k].resorder,
instca.appsmap[j].clusters[k].resdependency, "res")
if err != nil {
return err
}
}
}
err = instantiateApps(ac, instca.appsmap)
if err != nil {
return err
}
return nil
}
// Delete all the apps
func terminateApps(ac appcontext.AppContext, appsmap []instMap) error {
var wg sync.WaitGroup
var chans = make([]chan int, len(appsmap))
for l := range chans {
chans[l] = make(chan int)
}
for i:=0; i<len(appsmap); i++ {
wg.Add(1)
go func(index int) {
if appsmap[index].depinfo == "go" {
appsmap[index].status = "start"
} else {
appsmap[index].status = "waiting"
c := <- chans[index]
if c != index {
appsmap[index].status = "error"
appsmap[index].rerr = pkgerrors.Errorf("channel does not match")
wg.Done()
return
}
appsmap[index].status = "start"
}
appsmap[index].rerr = terminateApp(ac, appsmap[index])
appsmap[index].status = "done"
waitstr := fmt.Sprintf("wait on %v",appsmap[index].name)
for j:=0; j<len(appsmap); j++ {
if appsmap[j].depinfo == waitstr {
chans[j] <- j
}
}
wg.Done()
}(i)
}
wg.Wait()
for k:=0; k<len(appsmap); k++ {
if appsmap[k].rerr != nil {
return pkgerrors.Errorf("error during apps instantiation")
}
}
return nil
}
// Delete all the resources for a given context
func (instca *CompositeAppContext) TerminateComApp(cid interface{}) error {
ac := appcontext.AppContext{}
_, err := ac.LoadAppContext(cid)
if err != nil {
return err
}
instca.cid = cid
appsorder, err := ac.GetAppInstruction("order")
if err != nil {
return err
}
instca.appsorder = appsorder.(string)
appsdependency, err := ac.GetAppInstruction("dependency")
if err != nil {
return err
}
instca.appsdependency = appsdependency.(string)
instca.appsmap, err = getInstMap(instca.appsorder,instca.appsdependency, "app")
if err != nil {
return err
}
for j:=0; j<len(instca.appsmap); j++ {
clusternames, err := ac.GetClusterNames(instca.appsmap[j].name)
if err != nil {
return err
}
instca.appsmap[j].clusters = make([]clusterInfo, len(clusternames))
for k:=0; k<len(clusternames); k++ {
instca.appsmap[j].clusters[k].name = clusternames[k]
resorder, err := ac.GetResourceInstruction(
instca.appsmap[j].name, clusternames[k], "order")
if err != nil {
return err
}
instca.appsmap[j].clusters[k].resorder = resorder.(string)
resdependency, err := ac.GetResourceInstruction(
instca.appsmap[j].name, clusternames[k], "dependency")
if err != nil {
return err
}
instca.appsmap[j].clusters[k].resdependency = resdependency.(string)
instca.appsmap[j].clusters[k].ressmap, err = getInstMap(
instca.appsmap[j].clusters[k].resorder,
instca.appsmap[j].clusters[k].resdependency, "res")
if err != nil {
return err
}
}
}
err = terminateApps(ac, instca.appsmap)
if err != nil {
return err
}
return nil
}
|
