/
kontinuous.go
192 lines (164 loc) · 4.58 KB
/
kontinuous.go
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package main
import (
"net"
"os"
"encoding/json"
"io/ioutil"
"net/http"
"github.com/Sirupsen/logrus"
"github.com/emicklei/go-restful"
"github.com/emicklei/go-restful/swagger"
"golang.org/x/net/http2"
"github.com/AcalephStorage/kontinuous/api"
"github.com/AcalephStorage/kontinuous/kube"
"github.com/AcalephStorage/kontinuous/store/kv"
"github.com/AcalephStorage/kontinuous/store/mc"
"github.com/AcalephStorage/kontinuous/util"
)
const (
SecretFile = "/.secret/kontinuous-secrets"
Version = "0.0.1"
)
type Secrets struct {
AuthSecret string
S3SecretKey string
S3AccessKey string
GithubClientID string
GithubClientSecret string
}
var (
mainLog = util.NewContextLogger("main")
allowedCorsHeaders = []string{
"Authorization",
"Accept",
"Content-Type",
"Origin",
"X-Custom-Event",
}
)
func main() {
// log settings
setLogLevel()
log := mainLog.InFunc("main")
log.Info("Starting Kontinuous...")
// set environment variables
setEnv()
// params.. TODO: should be flags & env vars
bindAddr := getEnv("BIND_ADDR", "0.0.0.0")
bindPort := getEnv("BIND_PORT", "3005")
kvAddress := getEnv("KV_ADDRESS", "localhost:2379")
s3Url := getEnv("S3_URL", "")
s3Access := getEnv("S3_ACCESS_KEY", "")
s3Secret := getEnv("S3_SECRET_KEY", "")
container := createRestfulContainer()
kvClient := createKVClient(kvAddress)
kubeClient, err := kube.NewClient("https://kubernetes.default")
if err != nil {
log.WithError(err).Fatal("unable to create kubernetes client")
}
auth := &api.AuthResource{KVClient: kvClient}
pipeline := &api.PipelineResource{
KVClient: kvClient,
MinioClient: createMinioClient(s3Url, s3Access, s3Secret),
KubeClient: kubeClient,
}
repos := &api.RepositoryResource{}
auth.Register(container)
pipeline.Register(container)
repos.Register(container)
swaggerUIPath := getEnv("SWAGGER_UI", "")
swaggerConfig := swagger.Config{
WebServices: container.RegisteredWebServices(),
ApiPath: "/apidocs.json",
ApiVersion: Version,
Info: swagger.Info{
Title: "Kontinuous",
Description: "Service for managing CI/CD builds through Kubernetes Jobs",
},
SwaggerPath: "/apidocs/",
SwaggerFilePath: swaggerUIPath,
}
swagger.RegisterSwaggerService(swaggerConfig, container)
addr := net.JoinHostPort(bindAddr, bindPort)
server := &http.Server{Addr: addr, Handler: container}
if err := http2.ConfigureServer(server, nil); err != nil {
log.WithError(err).Errorln("unable to configure http2")
os.Exit(1)
}
log.Infof("Listening on: %s", addr)
certFile := getEnv("CERT_FILE", "/.certs/cert")
keyFile := getEnv("KEY_FILE", "/.certs/key")
log.Fatal(server.ListenAndServeTLS(certFile, keyFile))
}
func setLogLevel() {
logrus.SetLevel(logrus.InfoLevel)
debug := getEnv("DEBUG", "false")
if debug == "true" {
logrus.SetLevel(logrus.DebugLevel)
}
}
func getEnv(key, defaultStr string) string {
value := os.Getenv(key)
if value == "" {
return defaultStr
}
mainLog.InFunc("getEnv").Debugf("Parameter: %s=%s", key, value)
return value
}
func createRestfulContainer() *restful.Container {
container := restful.NewContainer()
cors := restful.CrossOriginResourceSharing{
AllowedHeaders: allowedCorsHeaders,
Container: container,
}
container.Filter(cors.Filter)
container.Filter(container.OPTIONSFilter)
return container
}
func createKVClient(address string) kv.KVClient {
kvClient, err := kv.NewEtcdClient("", "", "", address)
if err != nil {
mainLog.InFunc("createKvClient").
WithError(err).
Fatal("unable to create kv client")
os.Exit(1)
}
return kvClient
}
func createMinioClient(url, access, secret string) *mc.MinioClient {
minioClient, err := mc.NewMinioClient(url, access, secret)
if err != nil {
mainLog.InFunc("createMinioClient").
WithError(err).
Fatal("unable to create mc client")
os.Exit(1)
}
return minioClient
}
func getSecrets() *Secrets {
content, err := ioutil.ReadFile(SecretFile)
if err != nil {
mainLog.InFunc("getSecrets").
WithError(err).
Fatalf("Unable to read file: %s", SecretFile)
os.Exit(1)
}
var secrets Secrets
err = json.Unmarshal(content, &secrets)
if err != nil {
mainLog.InFunc("getSecrets").
WithError(err).
Fatalf("Unable to parse data from %s", SecretFile)
os.Exit(1)
}
return &secrets
}
func setEnv() {
if secrets := getSecrets(); secrets != nil {
os.Setenv("AUTH_SECRET", secrets.AuthSecret)
os.Setenv("S3_ACCESS_KEY", secrets.S3AccessKey)
os.Setenv("S3_SECRET_KEY", secrets.S3SecretKey)
os.Setenv("GITHUB_CLIENT_ID", secrets.GithubClientID)
os.Setenv("GITHUB_CLIENT_SECRET", secrets.GithubClientSecret)
}
}