diff options
| -rw-r--r-- | main.go | 48 |
1 files changed, 44 insertions, 4 deletions
@@ -9,17 +9,20 @@ import ( "os/exec" "path/filepath" "strings" + "time" ) var ( - repo = "" + key = "" + repo = "" commit = "" - task = "" - image = "" - port = "" + task = "" + image = "" + port = "" ) func init() { + flag.StringVar(&key, "key", "", "Path to SSH private key") flag.StringVar(&repo, "repo", "", "Source code as valid Git URL") flag.StringVar(&commit, "commit", "", "Commit or commit-ish reference for checkout") flag.StringVar(&task, "task", "", "Shell code to execute for the build") @@ -47,6 +50,8 @@ func main() { } }() + waitBoot() + workbench := prepareWorkbench(repo, commit) defer os.RemoveAll(workbench) craft(workbench) @@ -88,6 +93,41 @@ func qemu() *exec.Cmd { ) } +func sshCommand(name string, arg ...string) *exec.Cmd { + return exec.Command( + "ssh", + append([]string{ + "-p", + port, + "-o", + "UserKnownHostsFile=/dev/null", + "-o", + "StrictHostKeyChecking=no", + "-i", + key, + "root@localhost", + name, + }, arg...)..., + ) +} + +func waitBoot() { + retries := 5 + initialDelay := 1 * time.Second + + log.Println("Waiting for VM to boot") + time.Sleep(initialDelay) // without that `ssh` returns too quickly + for range retries { + cmd := sshCommand("true") + err := cmd.Run() + if err == nil { + log.Println("VM booted") + return + } + } + log.Fatalf("Could not reach VM %d times - giving up", retries) +} + func craft(workbench string) { script := fmt.Sprintf(`#!/bin/sh |