runner/artifactcache/util.go
Jason Song c9e076db68 Get outbound IP in multiple ways or disable cache server if failed to init (#74)
Fix #64 (incompletely).

It's still not ideal. It makes more sense to use the gateway IP address of container network as outbound IP of cache server. However, this requires act to cooperate, some think like:

- act creates the network for new container, and returns the network to runner.
- runner extracts the gateway IP in the network.
- runner uses the gateway IP as outbound IP, and pass it to act as cache server endpoint.
- act It continues to create the container with the created network.

Reviewed-on: https://gitea.com/gitea/act_runner/pulls/74
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-03-24 17:55:13 +08:00

100 lines
2.2 KiB
Go

// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package artifactcache
import (
"fmt"
"net"
"net/http"
"strconv"
"strings"
"sync"
"github.com/go-chi/render"
"xorm.io/xorm"
)
func responseJson(w http.ResponseWriter, r *http.Request, code int, v ...any) {
render.Status(r, code)
if len(v) == 0 || v[0] == nil {
render.JSON(w, r, struct{}{})
} else if err, ok := v[0].(error); ok {
logger.Errorf("%v %v: %v", r.Method, r.RequestURI, err)
render.JSON(w, r, map[string]any{
"error": err.Error(),
})
} else {
render.JSON(w, r, v[0])
}
}
func parseContentRange(s string) (int64, int64, error) {
// support the format like "bytes 11-22/*" only
s, _, _ = strings.Cut(strings.TrimPrefix(s, "bytes "), "/")
s1, s2, _ := strings.Cut(s, "-")
start, err := strconv.ParseInt(s1, 10, 64)
if err != nil {
return 0, 0, fmt.Errorf("parse %q: %w", s, err)
}
stop, err := strconv.ParseInt(s2, 10, 64)
if err != nil {
return 0, 0, fmt.Errorf("parse %q: %w", s, err)
}
return start, stop, nil
}
func getOutboundIP() (net.IP, error) {
// FIXME: It makes more sense to use the gateway IP address of container network
if conn, err := net.Dial("udp", "8.8.8.8:80"); err == nil {
defer conn.Close()
return conn.LocalAddr().(*net.UDPAddr).IP, nil
}
if ifaces, err := net.Interfaces(); err == nil {
for _, i := range ifaces {
if addrs, err := i.Addrs(); err == nil {
for _, addr := range addrs {
var ip net.IP
switch v := addr.(type) {
case *net.IPNet:
ip = v.IP
case *net.IPAddr:
ip = v.IP
}
if ip.IsGlobalUnicast() {
return ip, nil
}
}
}
}
}
return nil, fmt.Errorf("no outbound IP address found")
}
// engine is a wrapper of *xorm.Engine, with a lock.
// To avoid racing of sqlite, we don't care performance here.
type engine struct {
e *xorm.Engine
m sync.Mutex
}
func (e *engine) Exec(f func(*xorm.Session) error) error {
e.m.Lock()
defer e.m.Unlock()
sess := e.e.NewSession()
defer sess.Close()
return f(sess)
}
func (e *engine) ExecBool(f func(*xorm.Session) (bool, error)) (bool, error) {
e.m.Lock()
defer e.m.Unlock()
sess := e.e.NewSession()
defer sess.Close()
return f(sess)
}