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base.go
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base.go
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// Copyright 2022 The kubegems.io 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 models
import (
"context"
"database/sql"
"errors"
"fmt"
"io/fs"
"os"
"path/filepath"
"strings"
"time"
"github.com/VividCortex/mysqlerr"
"github.com/go-logr/logr"
"github.com/go-sql-driver/mysql"
"gorm.io/gorm"
"k8s.io/apimachinery/pkg/util/wait"
"kubegems.io/kubegems/pkg/log"
"kubegems.io/kubegems/pkg/utils/database"
"kubegems.io/kubegems/pkg/utils/prometheus/templates"
"kubegems.io/kubegems/pkg/utils/redis"
"sigs.k8s.io/yaml"
)
func createDatabaseIfNotExists(ctx context.Context, opts *database.Options) (exists bool, err error) {
log := logr.FromContextOrDiscard(ctx)
cfg := opts.ToDriverConfig()
dbname := cfg.DBName
cfg.DBName = ""
connector, err := mysql.NewConnector(cfg)
if err != nil {
return false, err
}
tmpdb := sql.OpenDB(connector)
defer tmpdb.Close()
showdb := fmt.Sprintf("SELECT count(*) FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = '%s'", dbname)
count := 0
if err := tmpdb.QueryRowContext(ctx, showdb).Scan(&count); err != nil {
return false, err
}
if count > 0 {
return true, nil
}
sqlStr := fmt.Sprintf("CREATE DATABASE IF NOT EXISTS `%s` DEFAULT CHARACTER SET utf8mb4 COLLATE `%s`;", dbname, opts.Collation)
log.Info("create database", "sql", sqlStr)
if _, err := tmpdb.Exec(sqlStr); err != nil {
return false, err
}
return false, nil
}
func MigrateDatabaseAndInitData(ctx context.Context, opts *database.Options, migrate, initData bool) error {
// init database schema
_, err := createDatabaseIfNotExists(ctx, opts)
if err != nil {
return err
}
db, err := database.NewDatabase(opts)
if err != nil {
return err
}
if migrate {
if err := MigrateModels(db.DB()); err != nil {
return err
}
}
if initData {
if err := InitBaseData(db.DB()); err != nil {
return err
}
}
return nil
}
// 初始化系统角色和系统管理员
func InitBaseData(db *gorm.DB) error {
active := true
sysadmin := SystemRole{ID: 1, RoleName: "系统管理员", RoleCode: "sysadmin"}
normal := SystemRole{ID: 2, RoleName: "普通用户", RoleCode: "normal"}
admin := User{
ID: 1,
Username: "admin",
IsActive: &active,
SystemRoleID: 1,
// 默认密码 demo!@#admin 生成 htpasswd -bnBC 10 "" 'demo!@#admin'| tr -d ':\n'
Password: "$2y$10$n3GZNQIB8jTMJS//1DY04eoRC7dQiPVp8MbFP/vPcaNJU96/MmPci",
}
if e := db.FirstOrCreate(&sysadmin, sysadmin.ID).Error; e != nil {
return e
}
if e := db.FirstOrCreate(&normal, normal.ID).Error; e != nil {
return e
}
if e := db.FirstOrCreate(&admin, admin.ID).Error; e != nil {
return e
}
tpls, err := getPromqlTpls()
if err != nil {
return err
}
for i := range tpls {
if err := db.FirstOrCreate(&tpls[i]).Error; err != nil {
return err
}
}
dashboardTpls, err := getDashboardTpls()
if err != nil {
log.Error(err, "get dashboard templates")
return err
}
for i := range dashboardTpls {
if err := db.FirstOrCreate(&dashboardTpls[i]).Error; err != nil {
return err
}
}
if err := db.FirstOrCreate(DefaultChannel).Error; err != nil {
return err
}
return nil
}
func MigrateModels(db *gorm.DB) error {
return db.AutoMigrate(
// 审计表
&AuditLog{},
// 用户表
&User{}, &UserToken{},
// 系统角色表
&SystemRole{},
// 租户表
&Tenant{},
// 租户成员关系表
&TenantUserRels{},
// 租户集群资源表
&TenantResourceQuota{},
// 项目表
&Project{},
// 项目成员关系表
&ProjectUserRels{},
// 环境表
&Environment{},
// 环境成员关系表
&EnvironmentUserRels{},
// 应用表
&Application{},
// 集群表
&Cluster{},
// 镜像仓库表
&Registry{},
// 日志查询历史表
&LogQueryHistory{},
// 日志查询快照表
&LogQuerySnapshot{},
// workload 资源建议表
&Workload{},
// 容器资源建议表
&Container{},
// 租户集群资源申请表
&TenantResourceQuotaApply{},
// ??
&EnvironmentResource{},
// 消息表
&Message{},
// 用户消息表
&UserMessageStatus{},
// helmChart仓库
&ChartRepo{},
// 虚拟空间表
&VirtualSpace{},
// 虚拟空间用户表
&VirtualSpaceUserRels{},
// 虚拟域名表
&VirtualDomain{},
// 告警规则
&AlertRule{}, &AlertReceiver{},
// 告警信息表
&AlertInfo{}, &AlertMessage{},
// alert channels
&AlertChannel{},
// 监控面板表
&MonitorDashboard{}, &MonitorDashboardTpl{},
// 登陆源
&AuthSource{},
// promql templates
&PromqlTplScope{}, &PromqlTplResource{}, &PromqlTplRule{},
// 公告
&Announcement{},
)
}
func IsNotFound(err error) bool {
return errors.Is(err, gorm.ErrRecordNotFound)
}
func GetErrMessage(err error) string {
me := &mysql.MySQLError{}
if !errors.As(err, &me) {
return err.Error()
}
switch me.Number {
case mysqlerr.ER_DUP_ENTRY:
return fmt.Sprintf("存在重名对象(code=%v)", me.Number)
case mysqlerr.ER_DATA_TOO_LONG:
return fmt.Sprintf("数据超长(code=%v)", me.Number)
case mysqlerr.ER_TRUNCATED_WRONG_VALUE:
return fmt.Sprintf("日期格式错误(code=%v)", me.Number)
case mysqlerr.ER_NO_REFERENCED_ROW_2:
return fmt.Sprintf("系统错误(外键关联数据出错 code=%v)", me.Number)
case mysqlerr.ER_ROW_IS_REFERENCED_2:
return fmt.Sprintf("系统错误(外键关联数据错误 code=%v)", me.Number)
default:
return fmt.Sprintf("系统错误(code=%v, message=%v)!", me.Number, me.Message)
}
}
func NewPromqlTplMapperFromFile() *templates.PromqlTplMapper {
bts, err := os.ReadFile("config/promql_tpl.yaml")
if err != nil {
return &templates.PromqlTplMapper{Err: err}
}
scopes := []*PromqlTplScope{}
if err := yaml.Unmarshal(bts, &scopes); err != nil {
return &templates.PromqlTplMapper{Err: err}
}
ret := &templates.PromqlTplMapper{M: make(map[string]*templates.PromqlTpl)}
for _, s := range scopes {
for _, res := range s.Resources {
for _, r := range res.Rules {
ret.M[fmt.Sprintf("%s.%s.%s", s.Name, res.Name, r.Name)] = &templates.PromqlTpl{
ScopeName: s.Name,
ScopeShowName: s.ShowName,
ResourceName: res.Name,
ResourceShowName: res.ShowName,
RuleName: r.Name,
RuleShowName: r.ShowName,
Namespaced: s.Namespaced,
Expr: r.Expr,
Unit: r.Unit,
Labels: r.Labels,
}
}
}
}
return ret
}
func getDashboardTpls() ([]*MonitorDashboardTpl, error) {
ret := []*MonitorDashboardTpl{}
if err := filepath.Walk("config/dashboards", func(path string, info fs.FileInfo, err error) error {
if err != nil {
return fmt.Errorf("prevent panic by handling failure accessing a path %q: %v", path, err)
}
if info.IsDir() || !strings.HasSuffix(info.Name(), ".yaml") {
return nil
}
bts, err := os.ReadFile(path)
if err != nil {
return err
}
tpl := MonitorDashboardTpl{}
if err := yaml.Unmarshal(bts, &tpl); err != nil {
return err
}
tplGetter := NewPromqlTplMapperFromFile().FindPromqlTpl
if err := CheckGraphs(tpl.Graphs, "", tplGetter); err != nil {
return fmt.Errorf("tpl: %s, %v", tpl.Name, err)
}
ret = append(ret, &tpl)
return nil
}); err != nil {
return nil, err
}
return ret, nil
}
func getPromqlTpls() ([]*PromqlTplRule, error) {
bts, err := os.ReadFile("config/promql_tpl.yaml")
if err != nil {
return nil, err
}
scopes := []PromqlTplScope{}
if err := yaml.Unmarshal(bts, &scopes); err != nil {
return nil, err
}
ret := []*PromqlTplRule{}
for _, scope := range scopes {
for _, res := range scope.Resources {
for _, rule := range res.Rules {
rule.Resource = &PromqlTplResource{
ID: res.ID,
ScopeID: &scope.ID,
Name: res.Name,
ShowName: res.ShowName,
Scope: &PromqlTplScope{
ID: scope.ID,
Name: scope.Name,
ShowName: scope.ShowName,
Namespaced: scope.Namespaced,
},
}
ret = append(ret, rule)
}
}
}
return ret, err
}
const WaitPerid = 5 * time.Second
func WaitDatabaseServer(ctx context.Context, opts *database.Options) error {
log := logr.FromContextOrDiscard(ctx)
cfg := opts.ToDriverConfig()
cfg.DBName = ""
connector, err := mysql.NewConnector(cfg)
if err != nil {
return err
}
sqldb := sql.OpenDB(connector)
return wait.PollImmediateInfiniteWithContext(ctx, WaitPerid, func(ctx context.Context) (done bool, err error) {
if err := sqldb.PingContext(ctx); err != nil {
log.Error(err, "wait database")
return false, nil
}
log.Info("database server ready")
return true, nil
})
}
func WaitRedis(ctx context.Context, redisopts redis.Options) error {
log := logr.FromContextOrDiscard(ctx)
cli, err := redis.NewClient(&redisopts)
if err != nil {
return err
}
return wait.PollImmediateInfiniteWithContext(ctx, WaitPerid, func(ctx context.Context) (done bool, err error) {
if err := cli.Client.Ping(ctx).Err(); err != nil {
log.Error(err, "wait redis")
return false, nil
}
log.Info("redis ready")
return true, nil
})
}