WIP SSH

go.mod

@@ -2,4 +2,8 @@ module git.deuxfleurs.fr/quentin/nuage
 
 go 1.16
 
-require github.com/scaleway/scaleway-sdk-go v1.0.0-beta.7
+require (
+	github.com/pkg/sftp v1.13.3
+	github.com/scaleway/scaleway-sdk-go v1.0.0-beta.7
+	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519
+)

go.sum

@@ -1,7 +1,33 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dnaeon/go-vcr v1.0.1 h1:r8L/HqC0Hje5AXMu1ooW8oyQyOFv4GxqpL0nRP7SLLY=
 github.com/dnaeon/go-vcr v1.0.1/go.mod h1:aBB1+wY4s93YsC3HHjMBMrwTj2R9FHDzUr9KyGc8n1E=
+github.com/kr/fs v0.1.0 h1:Jskdu9ieNAYnjxsi0LbQp1ulIKZV1LAFgK1tWhpZgl8=
+github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg=
+github.com/pkg/sftp v1.13.3 h1:XFSVAvRDGUhzAJ8Ll0APzHx3NTCAnMGaAsd3yi+Oc9k=
+github.com/pkg/sftp v1.13.3/go.mod h1:LzqnAvaD5TWeNBsZpfKxSYn1MbjWwOsCIAFFJbpIsK8=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/scaleway/scaleway-sdk-go v1.0.0-beta.7 h1:Do8ksLD4Nr3pA0x0hnLOLftZgkiTDvwPDShRTUxtXpE=
 github.com/scaleway/scaleway-sdk-go v1.0.0-beta.7/go.mod h1:CJJ5VAbozOl0yEw7nHB9+7BXTJbIn6h7W+f6Gau5IP8=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
+golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 h1:7I4JAnoQBe7ZtJcBaYHi5UtiO8tQHbUSXxL+pnGRANg=
+golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423185535-09eb48e85fd7/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 h1:SrN+KX8Art/Sf4HNj6Zcz06G7VEz+7w9tdXTPOZ7+l4=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -1,12 +1,17 @@
 package main
 
 import (
+  "bytes"
   "io"
+  "io/ioutil"
   "os"
   "fmt"
   "errors"
   "time"
 
+  "golang.org/x/crypto/ssh"
+
+  "github.com/pkg/sftp"
   "github.com/scaleway/scaleway-sdk-go/scw"
   "github.com/scaleway/scaleway-sdk-go/api/instance/v1"
 )
@@ -134,8 +139,6 @@ func (i *action) getInstanceByName(zone scw.Zone, name string) (*instance.Server
   return nil, instanceNotFound
 }
 
-
-
 func parseIP(s *instance.Server) string {
   ip := "(no address)"
   if s.PublicIP != nil {
@@ -175,7 +178,7 @@ func (sp *spawner) onInstance(zone, machine, image, name string) error {
       Name:               name,
       CommercialType:     machine,
       Image:              image,
-      DynamicIPRequired:  scw.BoolPtr(false),
+      DynamicIPRequired:  scw.BoolPtr(true),
     })
     if err != nil {
       return err
@@ -247,6 +250,112 @@ func (dt *destroyer) onInstance(zone, machine, image, name string) error {
   return nil
 }
 
+/**
+ * Runner
+ */
+
+type runner struct { action }
+
+func (r *runner) onInstance(zone, machine, image, name string) error {
+  // Source script
+  if len(os.Args) < 3 {
+    return errors.New("Missing script to run on the command line")
+  }
+
+  src, err := os.Open(os.Args[2])
+  if err != nil {
+    return err
+  }
+  defer src.Close()
+
+  // Connect to the remote
+  z, err := scw.ParseZone(zone)
+  if err != nil {
+    return err
+  }
+
+  targetServer, err := r.getInstanceByName(z, name)
+  if err != nil {
+    return err
+  }
+
+  if targetServer.PublicIP == nil {
+    return errors.New("run failed: this instance has no public ip.")
+  }
+  ip := targetServer.PublicIP.Address
+
+  var hostKey ssh.PublicKey
+  key, err := ioutil.ReadFile(os.Getenv("HOME") + "/.ssh/id_rsa")
+  if err != nil {
+    return err
+  }
+
+	signer, err := ssh.ParsePrivateKey(key)
+	if err != nil {
+    return err
+	}
+
+	config := &ssh.ClientConfig{
+		User: "root",
+		Auth: []ssh.AuthMethod{
+			ssh.PublicKeys(signer),
+		},
+		HostKeyCallback: ssh.FixedHostKey(hostKey),
+	}
+
+  sshClient, err := ssh.Dial("tcp", ip.String()+":22", config)
+	if err != nil {
+    return err
+	}
+	defer sshClient.Close()
+
+  // Send our script to the destination
+  sftpClient, err := sftp.NewClient(sshClient)
+  if err != nil {
+    return err
+  }
+  defer sftpClient.Close()
+
+  dst, err := sftpClient.Create("/tmp/nuage")
+  if err != nil {
+    return err
+  }
+  defer dst.Close()
+
+  err = dst.Chmod(0755)
+  if err != nil {
+    return err
+  }
+
+  _, err = io.Copy(dst, src)
+  if err != nil {
+    return err
+  }
+
+  // Run the script
+	session, err := sshClient.NewSession()
+	if err != nil {
+    return err
+	}
+	defer session.Close()
+
+	var sshStdout, sshStderr bytes.Buffer
+  session.Stdout = &sshStdout
+  session.Stderr = &sshStderr
+
+  err = session.Run("/tmp/nuage")
+  if os.Getenv("VERBOSE") != "" {
+    fmt.Fprintf(os.Stdout, "logs for %v\n", name)
+    io.Copy(os.Stdout, &sshStdout)
+    io.Copy(os.Stderr, &sshStderr)
+  }
+  if err != nil {
+    return err
+  }
+
+  return nil
+}
+
 
 /**
  * Commands
@@ -264,7 +373,14 @@ func spawn() error {
 }
 
 func run() error {
-  return nil
+  r := runner{}
+  err := r.init()
+  if err != nil {
+    return err
+  }
+
+  err = passInstanceTo(os.Stdin, &r)
+  return err
 }
 
 func destroy() error {