Example #1
0
func TestEtcdEnvironmentWrittenToDisk(t *testing.T) {
	ee := EtcdEnvironment{
		"name":           "node001",
		"discovery":      "http://disco.example.com/foobar",
		"peer-bind-addr": "127.0.0.1:7002",
	}
	dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
	if err != nil {
		t.Fatalf("Unable to create tempdir: %v", err)
	}
	defer os.RemoveAll(dir)

	sd := system.NewUnitManager(dir)

	uu, err := ee.Units(dir)
	if err != nil {
		t.Fatalf("Generating etcd unit failed: %v", err)
	}
	if len(uu) != 1 {
		t.Fatalf("Expected 1 unit to be returned, got %d", len(uu))
	}
	u := uu[0]

	dst := u.Destination(dir)
	os.Stderr.WriteString("writing to " + dir + "\n")
	if err := sd.PlaceUnit(&u, dst); err != nil {
		t.Fatalf("Writing of EtcdEnvironment failed: %v", err)
	}

	fullPath := path.Join(dir, "run", "systemd", "system", "etcd.service.d", "20-cloudinit.conf")

	fi, err := os.Stat(fullPath)
	if err != nil {
		t.Fatalf("Unable to stat file: %v", err)
	}

	if fi.Mode() != os.FileMode(0644) {
		t.Errorf("File has incorrect mode: %v", fi.Mode())
	}

	contents, err := ioutil.ReadFile(fullPath)
	if err != nil {
		t.Fatalf("Unable to read expected file: %v", err)
	}

	expect := `[Service]
Environment="ETCD_DISCOVERY=http://disco.example.com/foobar"
Environment="ETCD_NAME=node001"
Environment="ETCD_PEER_BIND_ADDR=127.0.0.1:7002"
`
	if string(contents) != expect {
		t.Fatalf("File has incorrect contents")
	}
}
Example #2
0
func TestEtcdEnvironmentWrittenToDiskDefaultToMachineID(t *testing.T) {
	ee := EtcdEnvironment{"foo": "bar"}
	dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
	if err != nil {
		t.Fatalf("Unable to create tempdir: %v", err)
	}
	defer os.RemoveAll(dir)

	sd := system.NewUnitManager(dir)

	os.Mkdir(path.Join(dir, "etc"), os.FileMode(0755))
	err = ioutil.WriteFile(path.Join(dir, "etc", "machine-id"), []byte("node007"), os.FileMode(0444))
	if err != nil {
		t.Fatalf("Failed writing out /etc/machine-id: %v", err)
	}

	uu, err := ee.Units(dir)
	if err != nil {
		t.Fatalf("Generating etcd unit failed: %v", err)
	}
	if len(uu) == 0 {
		t.Fatalf("Returned empty etcd units unexpectedly")
	}
	u := uu[0]

	dst := u.Destination(dir)
	os.Stderr.WriteString("writing to " + dir + "\n")
	if err := sd.PlaceUnit(&u, dst); err != nil {
		t.Fatalf("Writing of EtcdEnvironment failed: %v", err)
	}

	fullPath := path.Join(dir, "run", "systemd", "system", "etcd.service.d", "20-cloudinit.conf")

	contents, err := ioutil.ReadFile(fullPath)
	if err != nil {
		t.Fatalf("Unable to read expected file: %v", err)
	}

	expect := `[Service]
Environment="ETCD_FOO=bar"
Environment="ETCD_NAME=node007"
`
	if string(contents) != expect {
		t.Fatalf("File has incorrect contents")
	}
}
// Apply renders a CloudConfig to an Environment. This can involve things like
// configuring the hostname, adding new users, writing various configuration
// files to disk, and manipulating systemd services.
func Apply(cfg CloudConfig, env *Environment) error {
	if cfg.Hostname != "" {
		if err := system.SetHostname(cfg.Hostname); err != nil {
			return err
		}
		log.Printf("Set hostname to %s", cfg.Hostname)
	}

	for _, user := range cfg.Users {
		if user.Name == "" {
			log.Printf("User object has no 'name' field, skipping")
			continue
		}

		if system.UserExists(&user) {
			log.Printf("User '%s' exists, ignoring creation-time fields", user.Name)
			if user.PasswordHash != "" {
				log.Printf("Setting '%s' user's password", user.Name)
				if err := system.SetUserPassword(user.Name, user.PasswordHash); err != nil {
					log.Printf("Failed setting '%s' user's password: %v", user.Name, err)
					return err
				}
			}
		} else {
			log.Printf("Creating user '%s'", user.Name)
			if err := system.CreateUser(&user); err != nil {
				log.Printf("Failed creating user '%s': %v", user.Name, err)
				return err
			}
		}

		if len(user.SSHAuthorizedKeys) > 0 {
			log.Printf("Authorizing %d SSH keys for user '%s'", len(user.SSHAuthorizedKeys), user.Name)
			if err := system.AuthorizeSSHKeys(user.Name, env.SSHKeyName(), user.SSHAuthorizedKeys); err != nil {
				return err
			}
		}
		if user.SSHImportGithubUser != "" {
			log.Printf("Authorizing github user %s SSH keys for CoreOS user '%s'", user.SSHImportGithubUser, user.Name)
			if err := SSHImportGithubUser(user.Name, user.SSHImportGithubUser); err != nil {
				return err
			}
		}
		if user.SSHImportURL != "" {
			log.Printf("Authorizing SSH keys for CoreOS user '%s' from '%s'", user.Name, user.SSHImportURL)
			if err := SSHImportKeysFromURL(user.Name, user.SSHImportURL); err != nil {
				return err
			}
		}
	}

	if len(cfg.SSHAuthorizedKeys) > 0 {
		err := system.AuthorizeSSHKeys("core", env.SSHKeyName(), cfg.SSHAuthorizedKeys)
		if err == nil {
			log.Printf("Authorized SSH keys for core user")
		} else {
			return err
		}
	}

	for _, ccf := range []CloudConfigFile{cfg.Coreos.OEM, cfg.Coreos.Update, cfg.ManageEtcHosts} {
		f, err := ccf.File(env.Root())
		if err != nil {
			return err
		}
		if f != nil {
			cfg.WriteFiles = append(cfg.WriteFiles, *f)
		}
	}

	for _, ccu := range []CloudConfigUnit{cfg.Coreos.Etcd, cfg.Coreos.Fleet, cfg.Coreos.Update} {
		u, err := ccu.Units(env.Root())
		if err != nil {
			return err
		}
		cfg.Coreos.Units = append(cfg.Coreos.Units, u...)
	}

	wroteEnvironment := false
	for _, file := range cfg.WriteFiles {
		fullPath, err := system.WriteFile(&file, env.Root())
		if err != nil {
			return err
		}
		if path.Clean(file.Path) == "/etc/environment" {
			wroteEnvironment = true
		}
		log.Printf("Wrote file %s to filesystem", fullPath)
	}

	if !wroteEnvironment {
		ef := env.DefaultEnvironmentFile()
		if ef != nil {
			err := system.WriteEnvFile(ef, env.Root())
			if err != nil {
				return err
			}
			log.Printf("Updated /etc/environment")
		}
	}

	if env.NetconfType() != "" {
		netconfBytes, err := ioutil.ReadFile(path.Join(env.ConfigRoot(), cfg.NetworkConfigPath))
		if err != nil {
			return err
		}

		var interfaces []network.InterfaceGenerator
		switch env.NetconfType() {
		case "debian":
			interfaces, err = network.ProcessDebianNetconf(string(netconfBytes))
		default:
			return fmt.Errorf("Unsupported network config format %q", env.NetconfType())
		}

		if err != nil {
			return err
		}

		if err := system.WriteNetworkdConfigs(interfaces); err != nil {
			return err
		}
		if err := system.RestartNetwork(interfaces); err != nil {
			return err
		}
	}

	um := system.NewUnitManager(env.Root())
	return processUnits(cfg.Coreos.Units, env.Root(), um)

}
Example #4
0
File: config.go Project: pirater/os
// Apply renders a CloudConfig to an Environment. This can involve things like
// configuring the hostname, adding new users, writing various configuration
// files to disk, and manipulating systemd services.
func Apply(cfg config.CloudConfig, ifaces []network.InterfaceGenerator, env *Environment) error {
	if cfg.Hostname != "" {
		if err := system.SetHostname(cfg.Hostname); err != nil {
			return err
		}
		log.Printf("Set hostname to %s", cfg.Hostname)
	}

	for _, user := range cfg.Users {
		if user.Name == "" {
			log.Printf("User object has no 'name' field, skipping")
			continue
		}

		if system.UserExists(&user) {
			log.Printf("User '%s' exists, ignoring creation-time fields", user.Name)
			if user.PasswordHash != "" {
				log.Printf("Setting '%s' user's password", user.Name)
				if err := system.SetUserPassword(user.Name, user.PasswordHash); err != nil {
					log.Printf("Failed setting '%s' user's password: %v", user.Name, err)
					return err
				}
			}
		} else {
			log.Printf("Creating user '%s'", user.Name)
			if err := system.CreateUser(&user); err != nil {
				log.Printf("Failed creating user '%s': %v", user.Name, err)
				return err
			}
		}

		if len(user.SSHAuthorizedKeys) > 0 {
			log.Printf("Authorizing %d SSH keys for user '%s'", len(user.SSHAuthorizedKeys), user.Name)
			if err := system.AuthorizeSSHKeys(user.Name, env.SSHKeyName(), user.SSHAuthorizedKeys); err != nil {
				return err
			}
		}
		if user.SSHImportGithubUser != "" {
			log.Printf("Authorizing github user %s SSH keys for CoreOS user '%s'", user.SSHImportGithubUser, user.Name)
			if err := SSHImportGithubUser(user.Name, user.SSHImportGithubUser); err != nil {
				return err
			}
		}
		for _, u := range user.SSHImportGithubUsers {
			log.Printf("Authorizing github user %s SSH keys for CoreOS user '%s'", u, user.Name)
			if err := SSHImportGithubUser(user.Name, u); err != nil {
				return err
			}
		}
		if user.SSHImportURL != "" {
			log.Printf("Authorizing SSH keys for CoreOS user '%s' from '%s'", user.Name, user.SSHImportURL)
			if err := SSHImportKeysFromURL(user.Name, user.SSHImportURL); err != nil {
				return err
			}
		}
	}

	if len(cfg.SSHAuthorizedKeys) > 0 {
		err := system.AuthorizeSSHKeys("core", env.SSHKeyName(), cfg.SSHAuthorizedKeys)
		if err == nil {
			log.Printf("Authorized SSH keys for core user")
		} else {
			return err
		}
	}

	var writeFiles []system.File
	for _, file := range cfg.WriteFiles {
		writeFiles = append(writeFiles, system.File{File: file})
	}

	for _, ccf := range []CloudConfigFile{
		system.OEM{OEM: cfg.CoreOS.OEM},
		system.Update{Update: cfg.CoreOS.Update, ReadConfig: system.DefaultReadConfig},
		system.EtcHosts{EtcHosts: cfg.ManageEtcHosts},
		system.Flannel{Flannel: cfg.CoreOS.Flannel},
	} {
		f, err := ccf.File()
		if err != nil {
			return err
		}
		if f != nil {
			writeFiles = append(writeFiles, *f)
		}
	}

	var units []system.Unit
	for _, u := range cfg.CoreOS.Units {
		units = append(units, system.Unit{Unit: u})
	}

	for _, ccu := range []CloudConfigUnit{
		system.Etcd{Etcd: cfg.CoreOS.Etcd},
		system.Etcd2{Etcd2: cfg.CoreOS.Etcd2},
		system.Fleet{Fleet: cfg.CoreOS.Fleet},
		system.Locksmith{Locksmith: cfg.CoreOS.Locksmith},
		system.Update{Update: cfg.CoreOS.Update, ReadConfig: system.DefaultReadConfig},
	} {
		units = append(units, ccu.Units()...)
	}

	wroteEnvironment := false
	for _, file := range writeFiles {
		fullPath, err := system.WriteFile(&file, env.Root())
		if err != nil {
			return err
		}
		if path.Clean(file.Path) == "/etc/environment" {
			wroteEnvironment = true
		}
		log.Printf("Wrote file %s to filesystem", fullPath)
	}

	if !wroteEnvironment {
		ef := env.DefaultEnvironmentFile()
		if ef != nil {
			err := system.WriteEnvFile(ef, env.Root())
			if err != nil {
				return err
			}
			log.Printf("Updated /etc/environment")
		}
	}

	if len(ifaces) > 0 {
		units = append(units, createNetworkingUnits(ifaces)...)
		if err := system.RestartNetwork(ifaces); err != nil {
			return err
		}
	}

	um := system.NewUnitManager(env.Root())
	return processUnits(units, env.Root(), um)
}