feat: 数据库、redis、mongo支持ssh隧道等

This commit is contained in:
meilin.huang
2022-07-20 23:25:52 +08:00
parent 802e379f60
commit f0540559bb
30 changed files with 1885 additions and 1694 deletions

View File

@@ -24,58 +24,6 @@ type Cli struct {
sftpClient *sftp.Client
}
// 机器客户端连接缓存45分钟内没有访问则会被关闭
var cliCache = cache.NewTimedCache(45*time.Minute, 5*time.Second).
WithUpdateAccessTime(true).
OnEvicted(func(key interface{}, value interface{}) {
value.(*Cli).Close()
})
// 是否存在指定id的客户端连接
func HasCli(machineId uint64) bool {
if _, ok := cliCache.Get(machineId); ok {
return true
}
return false
}
// 删除指定机器客户端,并关闭客户端连接
func DeleteCli(id uint64) {
cliCache.Delete(id)
}
// 从缓存中获取客户端信息,不存在则回调获取机器信息函数,并新建
func GetCli(machineId uint64, getMachine func(uint64) *entity.Machine) (*Cli, error) {
cli, err := cliCache.ComputeIfAbsent(machineId, func(key interface{}) (interface{}, error) {
c, err := newClient(getMachine(machineId))
if err != nil {
return nil, err
}
return c, nil
})
if cli != nil {
return cli.(*Cli), err
}
return nil, err
}
//根据机器信息创建客户端对象
func newClient(machine *entity.Machine) (*Cli, error) {
if machine == nil {
return nil, errors.New("机器不存在")
}
global.Log.Infof("[%s]机器连接:%s:%d", machine.Name, machine.Ip, machine.Port)
cli := new(Cli)
cli.machine = machine
err := cli.connect()
if err != nil {
return nil, err
}
return cli, nil
}
//连接
func (c *Cli) connect() error {
// 如果已经有client则直接返回
@@ -83,16 +31,7 @@ func (c *Cli) connect() error {
return nil
}
m := c.machine
config := ssh.ClientConfig{
User: m.Username,
Auth: []ssh.AuthMethod{ssh.Password(m.Password)},
HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
return nil
},
Timeout: 5 * time.Second,
}
addr := fmt.Sprintf("%s:%d", m.Ip, m.Port)
sshClient, err := ssh.Dial("tcp", addr, &config)
sshClient, err := GetSshClient(m)
if err != nil {
return err
}
@@ -100,25 +39,6 @@ func (c *Cli) connect() error {
return nil
}
// 测试连接
func TestConn(m *entity.Machine) error {
config := ssh.ClientConfig{
User: m.Username,
Auth: []ssh.AuthMethod{ssh.Password(m.Password)},
HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
return nil
},
Timeout: 5 * time.Second,
}
addr := fmt.Sprintf("%s:%d", m.Ip, m.Port)
sshClient, err := ssh.Dial("tcp", addr, &config)
if err != nil {
return err
}
defer sshClient.Close()
return nil
}
// 关闭client和并从缓存中移除
func (c *Cli) Close() {
m := c.machine
@@ -184,3 +104,91 @@ func (c *Cli) Run(shell string) (*string, error) {
func (c *Cli) GetMachine() *entity.Machine {
return c.machine
}
// 机器客户端连接缓存45分钟内没有访问则会被关闭
var cliCache = cache.NewTimedCache(45*time.Minute, 5*time.Second).
WithUpdateAccessTime(true).
OnEvicted(func(_, value interface{}) {
value.(*Cli).Close()
})
// 是否存在指定id的客户端连接
func HasCli(machineId uint64) bool {
if _, ok := cliCache.Get(machineId); ok {
return true
}
return false
}
// 删除指定机器客户端,并关闭客户端连接
func DeleteCli(id uint64) {
cliCache.Delete(id)
}
// 从缓存中获取客户端信息,不存在则回调获取机器信息函数,并新建
func GetCli(machineId uint64, getMachine func(uint64) *entity.Machine) (*Cli, error) {
cli, err := cliCache.ComputeIfAbsent(machineId, func(_ interface{}) (interface{}, error) {
c, err := newClient(getMachine(machineId))
if err != nil {
return nil, err
}
return c, nil
})
if cli != nil {
return cli.(*Cli), err
}
return nil, err
}
// 测试连接
func TestConn(m *entity.Machine) error {
sshClient, err := GetSshClient(m)
if err != nil {
return err
}
defer sshClient.Close()
return nil
}
func GetSshClient(m *entity.Machine) (*ssh.Client, error) {
config := ssh.ClientConfig{
User: m.Username,
HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
return nil
},
Timeout: 5 * time.Second,
}
if m.AuthMethod == entity.MachineAuthMethodPassword {
config.Auth = []ssh.AuthMethod{ssh.Password(m.Password)}
} else if m.AuthMethod == entity.MachineAuthMethodPublicKey {
if signer, err := ssh.ParsePrivateKey([]byte(m.Password)); err != nil {
return nil, err
} else {
config.Auth = []ssh.AuthMethod{ssh.PublicKeys(signer)}
}
}
addr := fmt.Sprintf("%s:%d", m.Ip, m.Port)
sshClient, err := ssh.Dial("tcp", addr, &config)
if err != nil {
return nil, err
}
return sshClient, nil
}
//根据机器信息创建客户端对象
func newClient(machine *entity.Machine) (*Cli, error) {
if machine == nil {
return nil, errors.New("机器不存在")
}
global.Log.Infof("[%s]机器连接:%s:%d", machine.Name, machine.Ip, machine.Port)
cli := new(Cli)
cli.machine = machine
err := cli.connect()
if err != nil {
return nil, err
}
return cli, nil
}