89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
package darwin
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import (
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"context"
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"errors"
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"fmt"
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"os/exec"
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"strings"
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"time"
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"github.com/metrue/fx/provisioner"
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"github.com/metrue/go-ssh-client"
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)
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const sshConnectionTimeout = 10 * time.Second
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var scripts = map[string]string{
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"docker_version": "docker version",
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"has_docker": "type docker",
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"check_fx_agent": "docker inspect fx-agent",
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"start_fx_agent": "docker run -d --name=fx-agent --rm -v /var/run/docker.sock:/var/run/docker.sock -p 0.0.0.0:8866:1234 bobrik/socat TCP-LISTEN:1234,fork UNIX-CONNECT:/var/run/docker.sock",
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}
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// Docker define a fx docker host
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type Docker struct {
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sshClient ssh.Clienter
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}
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// New a docker provioner
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func New(sshClient ssh.Clienter) *Docker {
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return &Docker{
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sshClient: sshClient,
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}
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}
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// Provision a host
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func (d *Docker) Provision(ctx context.Context, isRemote bool) error {
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if err := d.runCmd(scripts["docker_version"], isRemote); err != nil {
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if err := d.runCmd(scripts["has_docker"], isRemote); err != nil {
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return errors.New("could not find docker on the $PATH")
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}
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return errors.New("cannot connect to the Docker daemon, is the docker daemon running?")
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}
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if err := d.runCmd(scripts["check_fx_agent"], isRemote); err != nil {
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if err := d.runCmd(scripts["start_fx_agent"], isRemote); err != nil {
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return err
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}
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}
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return nil
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}
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func (d *Docker) runCmd(script string, isRemote bool, options ...ssh.CommandOptions) error {
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option := ssh.CommandOptions{
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Timeout: sshConnectionTimeout,
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}
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if len(options) >= 1 {
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option = options[0]
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}
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if !isRemote {
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params := strings.Split(script, " ")
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if len(params) == 0 {
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return fmt.Errorf("invalid script: %s", script)
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}
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// nolint
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cmd := exec.Command(params[0], params[1:]...)
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cmd.Stdout = option.Stdout
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cmd.Stderr = option.Stderr
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err := cmd.Run()
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if err != nil {
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return err
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}
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return nil
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}
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ok, err := d.sshClient.Connectable(sshConnectionTimeout)
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if err != nil {
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return fmt.Errorf("could not connect via SSH: '%s'", err)
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}
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if !ok {
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return fmt.Errorf("could not connect via SSH")
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}
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return d.sshClient.RunCommand(script, option)
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}
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var (
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_ provisioner.Provisioner = &Docker{}
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)
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