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main.go
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main.go
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//go:generate goagen bootstrap -d github.com/cs3238-tsuzu/modoki/design
package main
import (
"context"
"flag"
"log"
"github.com/cs3238-tsuzu/modoki/app"
"github.com/cs3238-tsuzu/modoki/consul_traefik"
"github.com/docker/docker/client"
_ "github.com/go-sql-driver/mysql"
"github.com/goadesign/goa"
"github.com/goadesign/goa/middleware"
"github.com/jmoiron/sqlx"
)
var (
sqlDriver = flag.String("driver", "mysql", "SQL Driver")
authConfigPath = flag.String("auth", "/usr/local/modoki/authconfig.json", "Path to auth config")
docker = flag.String("docker", "unix:///var/run/docker.sock", "Docker path")
dockerAPIVersion = flag.String("docker-api", "v1.37", "Docker API version")
sqlHost = flag.String("db", "root:password@tcp(localhost:3306)/modoki?charset=utf8mb4&parseTime=True", "SQL")
consulHost = flag.String("consul", "localhost:8500", "Consul(KV)")
traefikAddr = flag.String("traefikAddr", "http://modoki", "Address to register on traefik")
publicAddr = flag.String("addr", "modoki.example.com", "API ep: modoki.example.com Service ep: *.modoki.example.com")
networkName = flag.String("net", "", "network for containers to join")
https = flag.Bool("https", true, "Enable HTTPS")
help = flag.Bool("help", false, "Show this")
)
// TODO: SQL retry実装
func main() {
flag.Parse()
if *help {
flag.Usage()
return
}
jwtMiddleware, err := initAuthMiddleware(*authConfigPath, app.NewJWTSecurity())
if err != nil {
log.Fatal("error: Failed to load the auth config file: ", err)
}
db := dbInit()
consul := consulInit()
defer finalize(consul)
// Create service
service := goa.New("Modoki API")
app.UseJWTMiddleware(service, jwtMiddleware)
service.Use(middleware.RequestID())
service.Use(middleware.LogRequest(true))
service.Use(middleware.ErrorHandler(service, true))
service.Use(middleware.Recover())
dockerClient, err := client.NewClient(*docker, *dockerAPIVersion, nil, nil)
if err != nil {
log.Fatal("Docker client initialization error", err)
}
containerUtil := &ContainerControllerUtil{
DockerClient: dockerClient,
DB: db,
Consul: consul,
}
userUtil := &UserControllerUtil{
DockerClient: dockerClient,
DB: db,
Consul: consul,
}
go containerUtil.run(context.Background())
// Mount "container" controller
c := NewContainerController(service)
c.ContainerControllerUtil = containerUtil
app.MountContainerController(service, c)
// Mount "user" controller
c2 := NewUserController(service)
c2.UserControllerUtil = userUtil
app.MountUserController(service, c2)
// Mount "swagger" controller
c3 := NewSwaggerController(service)
app.MountSwaggerController(service, c3)
// Start service
if err := service.ListenAndServe(":80"); err != nil {
service.LogError("startup", "err", err)
}
}
func dbInit() *sqlx.DB {
db, err := sqlx.Connect(*sqlDriver, *sqlHost)
if err != nil {
log.Fatal("error: Connecting to SQL server error: ", err)
}
if _, err := db.Exec(containerSchema); err != nil {
log.Fatal("error: Failed to create containers table: ", err)
}
if _, err := db.Exec(authorizedKeysSchema); err != nil {
log.Fatal("error: Failed to create authorizedKeys schema: ", err)
}
return db
}
func consulInit() *consulTraefik.Client {
consul, err := consulTraefik.NewClient("traefik", *consulHost)
if err != nil {
log.Fatal("error: Connecting to consul server error", err)
}
if ok, err := consul.HasFrontend(traefikFrontendName); err != nil {
log.Fatal("error: consul.HasFrontend error", err)
} else if !ok {
if err := consul.AddValueForFrontend(
traefikFrontendName,
"routes", "host", "rule", "Host:"+*publicAddr+";PathPrefix:/api/",
); err != nil {
log.Fatal("error: consul.NewFrontend error", err)
}
if err := consul.AddValueForFrontend(traefikFrontendName, "passHostHeader", true); err != nil {
log.Fatal("error: consul.AddValueForFrontend error", err)
}
if *https {
if err := consul.AddValueForFrontend(traefikFrontendName, "headers", "sslredirect", true); err != nil {
log.Fatal("error: consul.AddValueForFrontend error", err)
}
}
if err := consul.AddValueForFrontend(traefikFrontendName, "backend", traefikBackendName); err != nil {
log.Fatal("error: consul.AddValueForFrontend error", err)
}
}
if err := consul.NewBackend(traefikBackendName, serverName, *traefikAddr); err != nil {
log.Fatal("error: consul.NewBackend error", err)
}
return consul
}
func finalize(consul *consulTraefik.Client) {
consul.DeleteBackend(traefikBackendName)
}