func checkToolsAvailability(cfg *config.Config, finder toolsFinder) (version.Number, error) {
currentVersion, ok := cfg.AgentVersion()
if !ok || currentVersion == version.Zero {
return version.Zero, nil
}
env, err := newEnvirons(cfg)
if err != nil {
return version.Zero, errors.Annotatef(err, "cannot make environ")
}
// finder receives major and minor as parameters as it uses them to filter versions and
// only return patches for the passed major.minor (from major.minor.patch).
// We'll try the released stream first, then fall back to the current configured stream
// if no released tools are found.
vers, err := finder(env, currentVersion.Major, currentVersion.Minor, tools.ReleasedStream, coretools.Filter{})
preferredStream := tools.PreferredStream(¤tVersion, cfg.Development(), cfg.AgentStream())
if preferredStream != tools.ReleasedStream && errors.Cause(err) == coretools.ErrNoMatches {
vers, err = finder(env, currentVersion.Major, currentVersion.Minor, preferredStream, coretools.Filter{})
}
if err != nil {
return version.Zero, errors.Annotatef(err, "cannot find available tools")
}
// Newest also returns a list of the items in this list matching with the
// newest version.
newest, _ := vers.Newest()
return newest, nil
}
// DefaultVersions returns a slice of unique 'versions' for the current
// environment's preferred series and host architecture, as well supported LTS
// series for the host architecture. Additionally, it ensures that 'versions'
// for amd64 are returned if that is not the current host's architecture.
func DefaultVersions(conf *config.Config) []version.Binary {
var versions []version.Binary
supported := series.SupportedLts()
defaultSeries := set.NewStrings(supported...)
defaultSeries.Add(config.PreferredSeries(conf))
defaultSeries.Add(series.HostSeries())
agentVersion, set := conf.AgentVersion()
if !set {
agentVersion = jujuversion.Current
}
for _, s := range defaultSeries.Values() {
versions = append(versions, version.Binary{
Number: agentVersion,
Arch: arch.HostArch(),
Series: s,
})
if arch.HostArch() != "amd64" {
versions = append(versions, version.Binary{
Number: agentVersion,
Arch: "amd64",
Series: s,
})
}
}
return versions
}
// checkEnvironConfig returns an error if the config is definitely invalid.
func checkEnvironConfig(cfg *config.Config) error {
if cfg.AdminSecret() != "" {
return fmt.Errorf("admin-secret should never be written to the state")
}
if _, ok := cfg.AgentVersion(); !ok {
return fmt.Errorf("agent-version must always be set in state")
}
return nil
}
func (c *ModelConfigCreator) checkVersion(base *config.Config, attrs map[string]interface{}) error {
baseVersion, ok := base.AgentVersion()
if !ok {
return errors.Errorf("agent-version not found in base config")
}
// If there is no agent-version specified, use the current version.
// otherwise we need to check for tools
value, ok := attrs["agent-version"]
if !ok {
attrs["agent-version"] = baseVersion.String()
return nil
}
versionStr, ok := value.(string)
if !ok {
return errors.Errorf("agent-version must be a string but has type '%T'", value)
}
versionNumber, err := version.Parse(versionStr)
if err != nil {
return errors.Trace(err)
}
n := versionNumber.Compare(baseVersion)
switch {
case n > 0:
return errors.Errorf(
"agent-version (%s) cannot be greater than the controller (%s)",
versionNumber, baseVersion,
)
case n == 0:
// If the version is the same as the base config,
// then assume tools are available.
return nil
case n < 0:
if c.FindTools == nil {
return errors.New(
"agent-version does not match base config, " +
"and no tools-finder is supplied",
)
}
}
// Look to see if we have tools available for that version.
list, err := c.FindTools(versionNumber)
if err != nil {
return errors.Trace(err)
}
if len(list) == 0 {
return errors.Errorf("no tools found for version %s", versionNumber)
}
logger.Tracef("found tools: %#v", list)
return nil
}
// bootstrapConfig returns a copy of the supplied configuration with the
// admin-secret and ca-private-key attributes removed. If the resulting
// config is not suitable for bootstrapping an environment, an error is
// returned.
// This function is copied from environs in here so we can avoid an import loop
func bootstrapConfig(cfg *config.Config) (*config.Config, error) {
m := cfg.AllAttrs()
// We never want to push admin-secret or the root CA private key to the cloud.
delete(m, "admin-secret")
delete(m, "ca-private-key")
cfg, err := config.New(config.NoDefaults, m)
if err != nil {
return nil, err
}
if _, ok := cfg.AgentVersion(); !ok {
return nil, fmt.Errorf("model configuration has no agent-version")
}
return cfg, nil
}
// checkModelConfig returns an error if the config is definitely invalid.
func checkModelConfig(cfg *config.Config) error {
allAttrs := cfg.AllAttrs()
for _, attr := range disallowedModelConfigAttrs {
if _, ok := allAttrs[attr]; ok {
return errors.Errorf(attr + " should never be written to the state")
}
}
if _, ok := cfg.AgentVersion(); !ok {
return errors.Errorf("agent-version must always be set in state")
}
for attr := range allAttrs {
if controller.ControllerOnlyAttribute(attr) {
return errors.Errorf("cannot set controller attribute %q on a model", attr)
}
}
return nil
}
// Open implements environs.EnvironProvider.Open.
func (environProvider) Open(cfg *config.Config) (environs.Environ, error) {
logger.Infof("opening environment %q", cfg.Name())
if _, ok := cfg.AgentVersion(); !ok {
newCfg, err := cfg.Apply(map[string]interface{}{
"agent-version": version.Current.Number.String(),
})
if err != nil {
return nil, err
}
cfg = newCfg
}
// Set the "namespace" attribute. We do this here, and not in Prepare,
// for backwards compatibility: older versions did not store the namespace
// in config.
if namespace, _ := cfg.UnknownAttrs()["namespace"].(string); namespace == "" {
username := os.Getenv("USER")
if username == "" {
u, err := userCurrent()
if err != nil {
return nil, fmt.Errorf("failed to determine username for namespace: %v", err)
}
username = u.Username
}
var err error
namespace = fmt.Sprintf("%s-%s", username, cfg.Name())
cfg, err = cfg.Apply(map[string]interface{}{"namespace": namespace})
if err != nil {
return nil, fmt.Errorf("failed to create namespace: %v", err)
}
}
// Do the initial validation on the config.
localConfig, err := providerInstance.newConfig(cfg)
if err != nil {
return nil, err
}
if err := VerifyPrerequisites(localConfig.container()); err != nil {
return nil, fmt.Errorf("failed verification of local provider prerequisites: %v", err)
}
environ := &localEnviron{name: cfg.Name()}
if err := environ.SetConfig(cfg); err != nil {
return nil, fmt.Errorf("failure setting config: %v", err)
}
return environ, nil
}
// initVersions collects state relevant to an upgrade decision. The returned
// agent and client versions, and the list of currently available tools, will
// always be accurate; the chosen version, and the flag indicating development
// mode, may remain blank until uploadTools or validate is called.
func (c *UpgradeJujuCommand) initVersions(client *api.Client, cfg *config.Config) (*upgradeContext, error) {
agent, ok := cfg.AgentVersion()
if !ok {
// Can't happen. In theory.
return nil, fmt.Errorf("incomplete environment configuration")
}
if c.Version == agent {
return nil, errUpToDate
}
clientVersion := version.Current.Number
findResult, err := client.FindTools(clientVersion.Major, -1, "", "")
var availableTools coretools.List
if params.IsCodeNotImplemented(err) {
availableTools, err = findTools1dot17(cfg)
} else {
availableTools = findResult.List
}
if err != nil {
return nil, err
}
err = findResult.Error
if findResult.Error != nil {
if !params.IsCodeNotFound(err) {
return nil, err
}
if !c.UploadTools {
// No tools found and we shouldn't upload any, so if we are not asking for a
// major upgrade, pretend there is no more recent version available.
if c.Version == version.Zero && agent.Major == clientVersion.Major {
return nil, errUpToDate
}
return nil, err
}
}
return &upgradeContext{
agent: agent,
client: clientVersion,
chosen: c.Version,
tools: availableTools,
apiClient: client,
config: cfg,
}, nil
}
func checkToolsAvailability(cfg *config.Config, finder toolsFinder) (version.Number, error) {
currentVersion, ok := cfg.AgentVersion()
if !ok || currentVersion == version.Zero {
return version.Zero, nil
}
env, err := newEnvirons(cfg)
if err != nil {
return version.Zero, errors.Annotatef(err, "cannot make environ")
}
// finder receives major and minor as parameters as it uses them to filter versions and
// only return patches for the passed major.minor (from major.minor.patch).
vers, err := finder(env, currentVersion.Major, currentVersion.Minor, tools.ReleasedStream, coretools.Filter{})
if err != nil {
return version.Zero, errors.Annotatef(err, "canot find available tools")
}
// Newest also returns a list of the items in this list matching with the
// newest version.
newest, _ := vers.Newest()
return newest, nil
}
// PrepareForCreateEnvironment is specified in the EnvironProvider interface.
func (p environProvider) PrepareForCreateEnvironment(cfg *config.Config) (*config.Config, error) {
attrs := map[string]interface{}{
// We must not proxy SSH through the API server in a
// local provider environment. Besides not being useful,
// it may not work; there is no requirement for sshd to
// be available on machine-0.
"proxy-ssh": false,
}
if _, ok := cfg.AgentVersion(); !ok {
attrs["agent-version"] = version.Current.Number.String()
}
if namespace, _ := cfg.UnknownAttrs()["namespace"].(string); namespace == "" {
username := os.Getenv("USER")
if username == "" {
u, err := userCurrent()
if err != nil {
return nil, errors.Annotate(err, "failed to determine username for namespace")
}
username = u.Username
}
attrs["namespace"] = fmt.Sprintf("%s-%s", username, cfg.Name())
}
setIfNotBlank := func(key, value string) {
if value != "" {
attrs[key] = value
}
}
// If the user has specified no values for any of the four normal
// proxies, then look in the environment and set them.
logger.Tracef("Look for proxies?")
if cfg.HttpProxy() == "" &&
cfg.HttpsProxy() == "" &&
cfg.FtpProxy() == "" &&
cfg.NoProxy() == "" {
proxySettings := proxy.DetectProxies()
logger.Tracef("Proxies detected %#v", proxySettings)
setIfNotBlank(config.HttpProxyKey, proxySettings.Http)
setIfNotBlank(config.HttpsProxyKey, proxySettings.Https)
setIfNotBlank(config.FtpProxyKey, proxySettings.Ftp)
setIfNotBlank(config.NoProxyKey, proxySettings.NoProxy)
}
if version.Current.OS == version.Ubuntu {
if cfg.AptHttpProxy() == "" &&
cfg.AptHttpsProxy() == "" &&
cfg.AptFtpProxy() == "" {
proxySettings, err := detectPackageProxies()
if err != nil {
return nil, errors.Trace(err)
}
setIfNotBlank(config.AptHttpProxyKey, proxySettings.Http)
setIfNotBlank(config.AptHttpsProxyKey, proxySettings.Https)
setIfNotBlank(config.AptFtpProxyKey, proxySettings.Ftp)
}
}
cfg, err := cfg.Apply(attrs)
if err != nil {
return nil, errors.Trace(err)
}
// Make sure everything is valid.
cfg, err = p.Validate(cfg, nil)
if err != nil {
return nil, errors.Trace(err)
}
return cfg, nil
}
// PrepareForBootstrap implements environs.EnvironProvider.PrepareForBootstrap.
func (p environProvider) PrepareForBootstrap(ctx environs.BootstrapContext, cfg *config.Config) (environs.Environ, error) {
attrs := map[string]interface{}{
// We must not proxy SSH through the API server in a
// local provider environment. Besides not being useful,
// it may not work; there is no requirement for sshd to
// be available on machine-0.
"proxy-ssh": false,
}
if _, ok := cfg.AgentVersion(); !ok {
attrs["agent-version"] = version.Current.String()
}
if namespace, _ := cfg.UnknownAttrs()["namespace"].(string); namespace == "" {
username := os.Getenv("USER")
if username == "" {
u, err := userCurrent()
if err != nil {
return nil, errors.Annotate(err, "failed to determine username for namespace")
}
username = u.Username
}
attrs["namespace"] = fmt.Sprintf("%s-%s", username, cfg.Name())
}
setIfNotBlank := func(key, value string) {
if value != "" {
attrs[key] = value
}
}
// If the user has specified no values for any of the four normal
// proxies, then look in the environment and set them.
logger.Tracef("Look for proxies?")
if cfg.HttpProxy() == "" &&
cfg.HttpsProxy() == "" &&
cfg.FtpProxy() == "" &&
cfg.NoProxy() == "" {
proxySettings := proxy.DetectProxies()
logger.Tracef("Proxies detected %#v", proxySettings)
setIfNotBlank(config.HttpProxyKey, proxySettings.Http)
setIfNotBlank(config.HttpsProxyKey, proxySettings.Https)
setIfNotBlank(config.FtpProxyKey, proxySettings.Ftp)
setIfNotBlank(config.NoProxyKey, proxySettings.NoProxy)
}
if jujuos.HostOS() == jujuos.Ubuntu {
if cfg.AptHttpProxy() == "" &&
cfg.AptHttpsProxy() == "" &&
cfg.AptFtpProxy() == "" {
proxySettings, err := detectPackageProxies()
if err != nil {
return nil, errors.Trace(err)
}
setIfNotBlank(config.AptHttpProxyKey, proxySettings.Http)
setIfNotBlank(config.AptHttpsProxyKey, proxySettings.Https)
setIfNotBlank(config.AptFtpProxyKey, proxySettings.Ftp)
}
}
cfg, err := cfg.Apply(attrs)
if err != nil {
return nil, errors.Trace(err)
}
// Make sure everything is valid.
cfg, err = p.Validate(cfg, nil)
if err != nil {
return nil, errors.Trace(err)
}
// The user must not set bootstrap-ip; this is determined by the provider,
// and its presence used to determine whether the environment has yet been
// bootstrapped.
if _, ok := cfg.UnknownAttrs()["bootstrap-ip"]; ok {
return nil, errors.Errorf("bootstrap-ip must not be specified")
}
err = checkLocalPort(cfg.StatePort(), "state port")
if err != nil {
return nil, errors.Trace(err)
}
err = checkLocalPort(cfg.APIPort(), "API port")
if err != nil {
return nil, errors.Trace(err)
}
return p.Open(cfg)
}
func finalizeInstanceBootstrapConfig(
ctx environs.BootstrapContext,
icfg *instancecfg.InstanceConfig,
args BootstrapParams,
cfg *config.Config,
customImageMetadata []*imagemetadata.ImageMetadata,
) error {
if icfg.APIInfo != nil || icfg.Controller.MongoInfo != nil {
return errors.New("machine configuration already has api/state info")
}
controllerCfg := icfg.Controller.Config
caCert, hasCACert := controllerCfg.CACert()
if !hasCACert {
return errors.New("controller configuration has no ca-cert")
}
icfg.APIInfo = &api.Info{
Password: args.AdminSecret,
CACert: caCert,
ModelTag: names.NewModelTag(cfg.UUID()),
}
icfg.Controller.MongoInfo = &mongo.MongoInfo{
Password: args.AdminSecret,
Info: mongo.Info{CACert: caCert},
}
// These really are directly relevant to running a controller.
// Initially, generate a controller certificate with no host IP
// addresses in the SAN field. Once the controller is up and the
// NIC addresses become known, the certificate can be regenerated.
cert, key, err := controller.GenerateControllerCertAndKey(caCert, args.CAPrivateKey, nil)
if err != nil {
return errors.Annotate(err, "cannot generate controller certificate")
}
icfg.Bootstrap.StateServingInfo = params.StateServingInfo{
StatePort: controllerCfg.StatePort(),
APIPort: controllerCfg.APIPort(),
Cert: string(cert),
PrivateKey: string(key),
CAPrivateKey: args.CAPrivateKey,
}
if _, ok := cfg.AgentVersion(); !ok {
return errors.New("controller model configuration has no agent-version")
}
icfg.Bootstrap.ControllerModelConfig = cfg
icfg.Bootstrap.CustomImageMetadata = customImageMetadata
icfg.Bootstrap.ControllerCloudName = args.CloudName
icfg.Bootstrap.ControllerCloud = args.Cloud
icfg.Bootstrap.ControllerCloudRegion = args.CloudRegion
icfg.Bootstrap.ControllerCloudCredential = args.CloudCredential
icfg.Bootstrap.ControllerCloudCredentialName = args.CloudCredentialName
icfg.Bootstrap.ControllerConfig = args.ControllerConfig
icfg.Bootstrap.ControllerInheritedConfig = args.ControllerInheritedConfig
icfg.Bootstrap.RegionInheritedConfig = args.Cloud.RegionConfig
icfg.Bootstrap.HostedModelConfig = args.HostedModelConfig
icfg.Bootstrap.Timeout = args.DialOpts.Timeout
icfg.Bootstrap.GUI = guiArchive(args.GUIDataSourceBaseURL, func(msg string) {
ctx.Infof(msg)
})
return nil
}