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debian.go
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debian.go
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package provision
import (
"bytes"
"fmt"
"text/template"
"github.com/docker/machine/drivers"
"github.com/docker/machine/libmachine/auth"
"github.com/docker/machine/libmachine/engine"
"github.com/docker/machine/libmachine/provision/pkgaction"
"github.com/docker/machine/libmachine/swarm"
"github.com/docker/machine/log"
"github.com/docker/machine/utils"
)
func init() {
Register("Debian", &RegisteredProvisioner{
New: NewDebianProvisioner,
})
}
func NewDebianProvisioner(d drivers.Driver) Provisioner {
return &DebianProvisioner{
GenericProvisioner{
DockerOptionsDir: "/etc/docker",
DaemonOptionsFile: "/etc/systemd/system/docker.service",
OsReleaseId: "debian",
Packages: []string{
"curl",
},
Driver: d,
},
}
}
type DebianProvisioner struct {
GenericProvisioner
}
func (provisioner *DebianProvisioner) Service(name string, action pkgaction.ServiceAction) error {
// daemon-reload to catch config updates; systemd -- ugh
if _, err := provisioner.SSHCommand("sudo systemctl daemon-reload"); err != nil {
return err
}
command := fmt.Sprintf("sudo systemctl %s %s", action.String(), name)
if _, err := provisioner.SSHCommand(command); err != nil {
return err
}
return nil
}
func (provisioner *DebianProvisioner) Package(name string, action pkgaction.PackageAction) error {
var packageAction string
updateMetadata := true
switch action {
case pkgaction.Install:
packageAction = "install"
case pkgaction.Remove:
packageAction = "remove"
updateMetadata = false
case pkgaction.Upgrade:
packageAction = "upgrade"
}
switch name {
case "docker":
name = "lxc-docker"
}
if updateMetadata {
if _, err := provisioner.SSHCommand("sudo apt-get update"); err != nil {
return err
}
}
command := fmt.Sprintf("DEBIAN_FRONTEND=noninteractive sudo -E apt-get %s -y %s", packageAction, name)
log.Debugf("package: action=%s name=%s", action.String(), name)
if _, err := provisioner.SSHCommand(command); err != nil {
return err
}
return nil
}
func (provisioner *DebianProvisioner) dockerDaemonResponding() bool {
if _, err := provisioner.SSHCommand("sudo docker version"); err != nil {
log.Warnf("Error getting SSH command to check if the daemon is up: %s", err)
return false
}
// The daemon is up if the command worked. Carry on.
return true
}
func (provisioner *DebianProvisioner) Provision(swarmOptions swarm.SwarmOptions, authOptions auth.AuthOptions, engineOptions engine.EngineOptions) error {
provisioner.SwarmOptions = swarmOptions
provisioner.AuthOptions = authOptions
provisioner.EngineOptions = engineOptions
if provisioner.EngineOptions.StorageDriver == "" {
provisioner.EngineOptions.StorageDriver = "aufs"
}
// HACK: since debian does not come with sudo by default we install
log.Debug("installing sudo")
if _, err := provisioner.SSHCommand("if ! type sudo; then apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y sudo; fi"); err != nil {
return err
}
log.Debug("setting hostname")
if err := provisioner.SetHostname(provisioner.Driver.GetMachineName()); err != nil {
return err
}
log.Debug("installing base packages")
for _, pkg := range provisioner.Packages {
if err := provisioner.Package(pkg, pkgaction.Install); err != nil {
return err
}
}
log.Debug("installing docker")
if err := installDockerGeneric(provisioner, engineOptions.InstallURL); err != nil {
return err
}
log.Debug("waiting for docker daemon")
if err := utils.WaitFor(provisioner.dockerDaemonResponding); err != nil {
return err
}
provisioner.AuthOptions = setRemoteAuthOptions(provisioner)
log.Debug("configuring auth")
if err := ConfigureAuth(provisioner); err != nil {
return err
}
log.Debug("configuring swarm")
if err := configureSwarm(provisioner, swarmOptions, provisioner.AuthOptions); err != nil {
return err
}
// enable in systemd
log.Debug("enabling docker in systemd")
if err := provisioner.Service("docker", pkgaction.Enable); err != nil {
return err
}
return nil
}
func (provisioner *DebianProvisioner) GenerateDockerOptions(dockerPort int) (*DockerOptions, error) {
var (
engineCfg bytes.Buffer
)
driverNameLabel := fmt.Sprintf("provider=%s", provisioner.Driver.DriverName())
provisioner.EngineOptions.Labels = append(provisioner.EngineOptions.Labels, driverNameLabel)
engineConfigTmpl := `[Service]
ExecStart=/usr/bin/docker -d -H tcp://0.0.0.0:{{.DockerPort}} -H unix:///var/run/docker.sock --storage-driver {{.EngineOptions.StorageDriver}} --tlsverify --tlscacert {{.AuthOptions.CaCertRemotePath}} --tlscert {{.AuthOptions.ServerCertRemotePath}} --tlskey {{.AuthOptions.ServerKeyRemotePath}} {{ range .EngineOptions.Labels }}--label {{.}} {{ end }}{{ range .EngineOptions.InsecureRegistry }}--insecure-registry {{.}} {{ end }}{{ range .EngineOptions.RegistryMirror }}--registry-mirror {{.}} {{ end }}{{ range .EngineOptions.ArbitraryFlags }}--{{.}} {{ end }}
MountFlags=slave
LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
`
t, err := template.New("engineConfig").Parse(engineConfigTmpl)
if err != nil {
return nil, err
}
engineConfigContext := EngineConfigContext{
DockerPort: dockerPort,
AuthOptions: provisioner.AuthOptions,
EngineOptions: provisioner.EngineOptions,
}
t.Execute(&engineCfg, engineConfigContext)
return &DockerOptions{
EngineOptions: engineCfg.String(),
EngineOptionsPath: provisioner.DaemonOptionsFile,
}, nil
}