func executeCloudConfig() error {
cc, err := rancherConfig.LoadConfig()
if err != nil {
return err
}
if _, err := SetHostname(cc); err != nil {
return err
}
if len(cc.SSHAuthorizedKeys) > 0 {
authorizeSSHKeys("rancher", cc.SSHAuthorizedKeys, sshKeyName)
authorizeSSHKeys("docker", cc.SSHAuthorizedKeys, sshKeyName)
}
for _, file := range cc.WriteFiles {
f := system.File{File: file}
fullPath, err := system.WriteFile(&f, "/")
if err != nil {
log.WithFields(log.Fields{"err": err, "path": fullPath}).Error("Error writing file")
continue
}
log.Printf("Wrote file %s to filesystem", fullPath)
}
return nil
}
func PersistUnitNameInWorkspace(name string, workspace string) error {
file := system.File{
Path: path.Join(workspace, "scripts", "unit-name"),
RawFilePermissions: "0644",
Content: name,
}
return system.WriteFile(&file)
}
func PersistUnitNameInWorkspace(name string, workspace string) error {
file := system.File{File: config.File{
Path: path.Join("scripts", "unit-name"),
RawFilePermissions: "0644",
Content: name,
}}
_, err := system.WriteFile(&file, workspace)
return err
}
func TestOEMReleaseWrittenToDisk(t *testing.T) {
oem := OEMRelease{
ID: "rackspace",
Name: "Rackspace Cloud Servers",
VersionID: "168.0.0",
HomeURL: "https://www.rackspace.com/cloud/servers/",
BugReportURL: "https://github.com/coreos/coreos-overlay",
}
dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
if err != nil {
t.Fatalf("Unable to create tempdir: %v", err)
}
defer os.RemoveAll(dir)
f, err := oem.File(dir)
if err != nil {
t.Fatalf("Processing of OEMRelease failed: %v", err)
}
if f == nil {
t.Fatalf("OEMRelease returned nil file unexpectedly")
}
f.Path = path.Join(dir, f.Path)
if err := system.WriteFile(f); err != nil {
t.Fatalf("Writing of OEMRelease failed: %v", err)
}
fullPath := path.Join(dir, "etc", "oem-release")
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 := `ID=rackspace
VERSION_ID=168.0.0
NAME="Rackspace Cloud Servers"
HOME_URL="https://www.rackspace.com/cloud/servers/"
BUG_REPORT_URL="https://github.com/coreos/coreos-overlay"
`
if string(contents) != expect {
t.Fatalf("File has incorrect contents")
}
}
func executeCloudConfig() error {
ccu, err := getSaveCloudConfig()
if err != nil {
return err
}
var metadata datasource.Metadata
metaDataBytes, err := ioutil.ReadFile(rancherConfig.MetaDataFile)
if err != nil {
return err
}
if err = yaml.Unmarshal(metaDataBytes, &metadata); err != nil {
return err
}
log.Info("Merging cloud-config from meta-data and user-data")
cc := mergeConfigs(ccu, metadata)
if cc.Hostname != "" {
//set hostname
if err := hostname.SetHostname(cc.Hostname); err != nil {
log.WithFields(log.Fields{"err": err, "hostname": cc.Hostname}).Error("Error setting hostname")
}
}
if len(cc.SSHAuthorizedKeys) > 0 {
authorizeSSHKeys("rancher", cc.SSHAuthorizedKeys, sshKeyName)
authorizeSSHKeys("docker", cc.SSHAuthorizedKeys, sshKeyName)
}
for _, user := range cc.Users {
if user.Name == "" {
continue
}
if len(user.SSHAuthorizedKeys) > 0 {
authorizeSSHKeys(user.Name, user.SSHAuthorizedKeys, sshKeyName)
}
}
for _, file := range cc.WriteFiles {
f := system.File{File: file}
fullPath, err := system.WriteFile(&f, "/")
if err != nil {
log.WithFields(log.Fields{"err": err, "path": fullPath}).Error("Error writing file")
continue
}
log.Printf("Wrote file %s to filesystem", fullPath)
}
return nil
}
func TestEtcHostsWrittenToDisk(t *testing.T) {
dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
if err != nil {
t.Fatalf("Unable to create tempdir: %v", err)
}
defer os.RemoveAll(dir)
eh := EtcHosts("localhost")
f, err := eh.File(dir)
if err != nil {
t.Fatalf("Error calling File on EtcHosts: %v", err)
}
if f == nil {
t.Fatalf("manageEtcHosts returned nil file unexpectedly")
}
f.Path = path.Join(dir, f.Path)
if err := system.WriteFile(f); err != nil {
t.Fatalf("Error writing EtcHosts: %v", err)
}
fullPath := path.Join(dir, "etc", "hosts")
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)
}
hostname, err := os.Hostname()
if err != nil {
t.Fatalf("Unable to read OS hostname: %v", err)
}
expect := fmt.Sprintf("%s %s\n", DefaultIpv4Address, hostname)
if string(contents) != expect {
t.Fatalf("File has incorrect contents")
}
}
func TestUpdateConfWrittenToDisk(t *testing.T) {
dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
if err != nil {
t.Fatalf("Unable to create tempdir: %v", err)
}
defer os.RemoveAll(dir)
setupFixtures(dir)
for i := 0; i < 2; i++ {
if i == 1 {
err = ioutil.WriteFile(path.Join(dir, "etc", "coreos", "update.conf"), []byte(configured), 0644)
if err != nil {
t.Fatal(err)
}
}
uc := &UpdateConfig{"reboot-strategy": "etcd-lock"}
f, err := uc.File(dir)
if err != nil {
t.Fatalf("Processing UpdateConfig failed: %v", err)
} else if f == nil {
t.Fatal("Unexpectedly got nil updateconfig file")
}
f.Path = path.Join(dir, f.Path)
if err := system.WriteFile(f); err != nil {
t.Fatalf("Error writing update config: %v", err)
}
fullPath := path.Join(dir, "etc", "coreos", "update.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)
}
if string(contents) != expected {
t.Fatalf("File has incorrect contents, got %v, wanted %v", string(contents), expected)
}
}
}
func PersistScriptInWorkspace(script system.Script, workspace string) (string, error) {
scriptsPath := path.Join(workspace, "scripts")
tmp, err := ioutil.TempFile(scriptsPath, "")
if err != nil {
return "", err
}
tmp.Close()
file := system.File{
Path: tmp.Name(),
RawFilePermissions: "0744",
Content: string(script),
}
err = system.WriteFile(&file)
return file.Path, err
}
func PersistScriptInWorkspace(script config.Script, workspace string) (string, error) {
scriptsPath := path.Join(workspace, "scripts")
tmp, err := ioutil.TempFile(scriptsPath, "")
if err != nil {
return "", err
}
tmp.Close()
relpath := strings.TrimPrefix(tmp.Name(), workspace)
file := system.File{File: config.File{
Path: relpath,
RawFilePermissions: "0744",
Content: string(script),
}}
return system.WriteFile(&file, workspace)
}
// 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)
}
// 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...)
}
for _, file := range cfg.WriteFiles {
path, err := system.WriteFile(&file, env.Root())
if err != nil {
return err
}
log.Printf("Wrote file %s to filesystem", path)
}
commands := make(map[string]string, 0)
reload := false
for _, unit := range cfg.Coreos.Units {
dst := unit.Destination(env.Root())
if unit.Content != "" {
log.Printf("Writing unit %s to filesystem at path %s", unit.Name, dst)
if err := system.PlaceUnit(&unit, dst); err != nil {
return err
}
log.Printf("Placed unit %s at %s", unit.Name, dst)
reload = true
}
if unit.Mask {
log.Printf("Masking unit file %s", unit.Name)
if err := system.MaskUnit(&unit, env.Root()); err != nil {
return err
}
} else if unit.Runtime {
log.Printf("Ensuring runtime unit file %s is unmasked", unit.Name)
if err := system.UnmaskUnit(&unit, env.Root()); err != nil {
return err
}
}
if unit.Enable {
if unit.Group() != "network" {
log.Printf("Enabling unit file %s", unit.Name)
if err := system.EnableUnitFile(unit.Name, unit.Runtime); err != nil {
return err
}
log.Printf("Enabled unit %s", unit.Name)
} else {
log.Printf("Skipping enable for network-like unit %s", unit.Name)
}
}
if unit.Group() == "network" {
commands["systemd-networkd.service"] = "restart"
} else if unit.Command != "" {
commands[unit.Name] = unit.Command
}
}
if reload {
if err := system.DaemonReload(); err != nil {
return errors.New(fmt.Sprintf("failed systemd daemon-reload: %v", err))
}
}
for unit, command := range commands {
log.Printf("Calling unit command '%s %s'", command, unit)
res, err := system.RunUnitCommand(command, unit)
if err != nil {
return err
}
log.Printf("Result of '%s %s': %s", command, unit, res)
}
return nil
}
// 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)
}
