// PerformTLSBootstrap creates a RESTful client in order to execute certificate signing request.
func PerformTLSBootstrap(s *kubeadmapi.KubeadmConfig, apiEndpoint string, caCert []byte) (*clientcmdapi.Config, error) {
// TODO(phase1+) try all the api servers until we find one that works
bareClientConfig := kubeadmutil.CreateBasicClientConfig("kubernetes", apiEndpoint, caCert)
hostName, err := os.Hostname()
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to get node hostname [%v]", err)
}
// TODO: hostname == nodename doesn't hold on all clouds (AWS).
// But we don't have a cloudprovider, so we're stuck.
glog.Errorf("assuming that hostname is the same as NodeName")
nodeName := types.NodeName(hostName)
bootstrapClientConfig, err := clientcmd.NewDefaultClientConfig(
*kubeadmutil.MakeClientConfigWithToken(
bareClientConfig, "kubernetes", fmt.Sprintf("kubelet-%s", nodeName), s.Secrets.BearerToken,
),
&clientcmd.ConfigOverrides{},
).ClientConfig()
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to create API client configuration [%v]", err)
}
client, err := unversionedcertificates.NewForConfig(bootstrapClientConfig)
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to create API client [%v]", err)
}
csrClient := client.CertificateSigningRequests()
// TODO(phase1+) checkCertsAPI() has a side-effect of making first attempt of communicating with the API,
// we should _make it more explicit_ and have a user-settable _retry timeout_ to account for potential connectivity issues
// (for example user may be bringing up machines in parallel and for some reasons master is slow to boot)
if err := checkCertsAPI(bootstrapClientConfig); err != nil {
return nil, fmt.Errorf("<node/csr> failed to proceed due to API compatibility issue - %v", err)
}
fmt.Println("<node/csr> created API client to obtain unique certificate for this node, generating keys and certificate signing request")
key, err := certutil.MakeEllipticPrivateKeyPEM()
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to generating private key [%v]", err)
}
cert, err := csr.RequestNodeCertificate(csrClient, key, nodeName)
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to request signed certificate from the API server [%v]", err)
}
// TODO(phase1+) print some basic info about the cert
fmt.Println("<node/csr> received signed certificate from the API server, generating kubelet configuration")
finalConfig := kubeadmutil.MakeClientConfigWithCerts(
bareClientConfig, "kubernetes", fmt.Sprintf("kubelet-%s", nodeName),
key, cert,
)
return finalConfig, nil
}
// makes the client from the specified context and determines whether it is a cluster-admin.
func (o DiagnosticsOptions) makeClusterClients(rawConfig *clientcmdapi.Config, contextName string, context *clientcmdapi.Context) (*client.Client, *kclientset.Clientset, bool, string, error) {
overrides := &clientcmd.ConfigOverrides{Context: *context}
clientConfig := clientcmd.NewDefaultClientConfig(*rawConfig, overrides)
serverUrl := rawConfig.Clusters[context.Cluster].Server
factory := osclientcmd.NewFactory(clientConfig)
o.Logger.Debug("CED1005", fmt.Sprintf("Checking if context is cluster-admin: '%s'", contextName))
if osClient, _, kubeClient, err := factory.Clients(); err != nil {
o.Logger.Debug("CED1006", fmt.Sprintf("Error creating client for context '%s':\n%v", contextName, err))
return nil, nil, false, "", nil
} else {
subjectAccessReview := authorizationapi.SubjectAccessReview{Action: authorizationapi.Action{
// if you can do everything, you're the cluster admin.
Verb: "*",
Group: "*",
Resource: "*",
}}
if resp, err := osClient.SubjectAccessReviews().Create(&subjectAccessReview); err != nil {
if regexp.MustCompile(`User "[\w:]+" cannot create \w+ at the cluster scope`).MatchString(err.Error()) {
o.Logger.Debug("CED1007", fmt.Sprintf("Context '%s' does not have cluster-admin access:\n%v", contextName, err))
return nil, nil, false, "", nil
} else {
o.Logger.Error("CED1008", fmt.Sprintf("Unknown error testing cluster-admin access for context '%s':\n%v", contextName, err))
return nil, nil, false, "", err
}
} else if resp.Allowed {
o.Logger.Info("CED1009", fmt.Sprintf("Using context for cluster-admin access: '%s'", contextName))
return osClient, kubeClient, true, serverUrl, nil
}
}
o.Logger.Debug("CED1010", fmt.Sprintf("Context does not have cluster-admin access: '%s'", contextName))
return nil, nil, false, "", nil
}
func TestSetWithPathPrefixIntoExistingStruct(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
expectedConfig.Clusters["cow-cluster"].Server = "http://cow.org:8080/foo/baz"
test := configCommandTest{
args: []string{"set", "clusters.cow-cluster.server", "http://cow.org:8080/foo/baz"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
dc := clientcmd.NewDefaultClientConfig(expectedConfig, &clientcmd.ConfigOverrides{})
dcc, err := dc.ClientConfig()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
expectedHost := "http://cow.org:8080"
if expectedHost != dcc.Host {
t.Fatalf("expected client.Config.Host = %q instead of %q", expectedHost, dcc.Host)
}
expectedPrefix := "/foo/baz"
if expectedPrefix != dcc.Prefix {
t.Fatalf("expected client.Config.Prefix = %q instead of %q", expectedPrefix, dcc.Prefix)
}
}
func getKubeClient() (string, *kclient.Client, error) {
c, err := kclientcmd.LoadFromFile(*kubeConfig)
if err != nil {
return "", nil, fmt.Errorf("error loading kubeConfig: %v", err.Error())
}
if c.CurrentContext == "" || len(c.Clusters) == 0 {
return "", nil, fmt.Errorf("invalid kubeConfig: %+v", *c)
}
config, err := kclientcmd.NewDefaultClientConfig(
*c,
&kclientcmd.ConfigOverrides{
ClusterInfo: kclientcmdkapi.Cluster{
APIVersion: "v1",
},
}).ClientConfig()
if err != nil {
return "", nil, fmt.Errorf("error parsing kubeConfig: %v", err.Error())
}
kubeClient, err := kclient.New(config)
if err != nil {
return "", nil, fmt.Errorf("error creating client - %q", err)
}
return c.Clusters[c.CurrentContext].Server, kubeClient, nil
}
func loggedInUserFactory() (*clientcmd.Factory, error) {
cfg, err := kclientcmd.LoadFromFile(config.RecommendedHomeFile)
if err != nil {
return nil, err
}
defaultCfg := kclientcmd.NewDefaultClientConfig(*cfg, &kclientcmd.ConfigOverrides{})
return clientcmd.NewFactory(defaultCfg), nil
}
func loggedInUserFactory() (*clientcmd.Factory, error) {
cfg, err := config.NewOpenShiftClientConfigLoadingRules().Load()
if err != nil {
return nil, err
}
defaultCfg := kclientcmd.NewDefaultClientConfig(*cfg, &kclientcmd.ConfigOverrides{})
return clientcmd.NewFactory(defaultCfg), nil
}
func TestNewFactoryNoFlagBindings(t *testing.T) {
clientConfig := clientcmd.NewDefaultClientConfig(*clientcmdapi.NewConfig(), &clientcmd.ConfigOverrides{})
factory := NewFactory(clientConfig)
if factory.flags.HasFlags() {
t.Errorf("Expected zero flags, but got %v", factory.flags)
}
}
// PerformTLSBootstrap creates a RESTful client in order to execute certificate signing request.
func PerformTLSBootstrap(s *kubeadmapi.NodeConfiguration, apiEndpoint string, caCert []byte) (*clientcmdapi.Config, error) {
// TODO(phase1+) try all the api servers until we find one that works
bareClientConfig := kubeadmutil.CreateBasicClientConfig("kubernetes", apiEndpoint, caCert)
hostName, err := os.Hostname()
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to get node hostname [%v]", err)
}
// TODO(phase1+) https://github.com/kubernetes/kubernetes/issues/33641
nodeName := types.NodeName(hostName)
bootstrapClientConfig, err := clientcmd.NewDefaultClientConfig(
*kubeadmutil.MakeClientConfigWithToken(
bareClientConfig, "kubernetes", fmt.Sprintf("kubelet-%s", nodeName), s.Secrets.BearerToken,
),
&clientcmd.ConfigOverrides{},
).ClientConfig()
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to create API client configuration [%v]", err)
}
client, err := unversionedcertificates.NewForConfig(bootstrapClientConfig)
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to create API client [%v]", err)
}
csrClient := client.CertificateSigningRequests()
// TODO(phase1+) https://github.com/kubernetes/kubernetes/issues/33643
if err := checkCertsAPI(bootstrapClientConfig); err != nil {
return nil, fmt.Errorf("<node/csr> failed to proceed due to API compatibility issue - %v", err)
}
fmt.Println("<node/csr> created API client to obtain unique certificate for this node, generating keys and certificate signing request")
key, err := certutil.MakeEllipticPrivateKeyPEM()
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to generating private key [%v]", err)
}
cert, err := csr.RequestNodeCertificate(csrClient, key, nodeName)
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to request signed certificate from the API server [%v]", err)
}
fmtCert, err := certutil.FormatBytesCert(cert)
if err != nil {
return nil, fmt.Errorf("<node/csr> failed to format certificate [%v]", err)
}
fmt.Printf("<node/csr> received signed certificate from the API server:\n%s\n", fmtCert)
fmt.Println("<node/csr> generating kubelet configuration")
finalConfig := kubeadmutil.MakeClientConfigWithCerts(
bareClientConfig, "kubernetes", fmt.Sprintf("kubelet-%s", nodeName),
key, cert,
)
return finalConfig, nil
}
// Factory returns a command factory that works with OpenShift server's admin credentials
func (c *ClientStartConfig) Factory() (*clientcmd.Factory, error) {
if c.factory == nil {
cfg, err := kclientcmd.LoadFromFile(filepath.Join(c.LocalConfigDir, "master", "admin.kubeconfig"))
if err != nil {
return nil, err
}
defaultCfg := kclientcmd.NewDefaultClientConfig(*cfg, &kclientcmd.ConfigOverrides{})
c.factory = clientcmd.NewFactory(defaultCfg)
}
return c.factory, nil
}
func (c *HollowNodeConfig) createClientConfigFromFile() (*restclient.Config, error) {
clientConfig, err := clientcmd.LoadFromFile(c.KubeconfigPath)
if err != nil {
return nil, fmt.Errorf("error while loading kubeconfig from file %v: %v", c.KubeconfigPath, err)
}
config, err := clientcmd.NewDefaultClientConfig(*clientConfig, &clientcmd.ConfigOverrides{}).ClientConfig()
if err != nil {
return nil, fmt.Errorf("error while creating kubeconfig: %v", err)
}
config.ContentType = c.ContentType
return config, nil
}
func createAPIClient(adminKubeconfig *clientcmdapi.Config) (*clientset.Clientset, error) {
adminClientConfig, err := clientcmd.NewDefaultClientConfig(
*adminKubeconfig,
&clientcmd.ConfigOverrides{},
).ClientConfig()
if err != nil {
return nil, fmt.Errorf("failed to create API client configuration [%v]", err)
}
client, err := clientset.NewForConfig(adminClientConfig)
if err != nil {
return nil, fmt.Errorf("failed to create API client [%v]", err)
}
return client, nil
}
// Factory returns a command factory that works with OpenShift server's admin credentials
func (c *ClientStartConfig) Factory() (*clientcmd.Factory, error) {
if c.factory == nil {
cfg, err := kclientcmd.LoadFromFile(filepath.Join(c.LocalConfigDir, "master", "admin.kubeconfig"))
if err != nil {
return nil, err
}
overrides := &kclientcmd.ConfigOverrides{}
if c.PortForwarding {
overrides.ClusterInfo.Server = fmt.Sprintf("https://%s:8443", c.ServerIP)
}
defaultCfg := kclientcmd.NewDefaultClientConfig(*cfg, overrides)
c.factory = clientcmd.NewFactory(defaultCfg)
}
return c.factory, nil
}
func LoadFederatedConfig(overrides *clientcmd.ConfigOverrides) (*restclient.Config, error) {
c, err := framework.RestclientConfig(framework.TestContext.FederatedKubeContext)
if err != nil {
return nil, fmt.Errorf("error creating federation client config: %v", err.Error())
}
cfg, err := clientcmd.NewDefaultClientConfig(*c, overrides).ClientConfig()
if cfg != nil {
//TODO(colhom): this is only here because https://github.com/kubernetes/kubernetes/issues/25422
cfg.NegotiatedSerializer = api.Codecs
}
if err != nil {
return cfg, fmt.Errorf("error creating federation default client config: %v", err.Error())
}
return cfg, nil
}
func createClientFromFile(path string) (*client.Client, error) {
c, err := clientcmd.LoadFromFile(path)
if err != nil {
return nil, fmt.Errorf("error while loading kubeconfig from file %v: %v", path, err)
}
config, err := clientcmd.NewDefaultClientConfig(*c, &clientcmd.ConfigOverrides{}).ClientConfig()
if err != nil {
return nil, fmt.Errorf("error while creating kubeconfig: %v", err)
}
client, err := client.New(config)
if err != nil {
return nil, fmt.Errorf("error while creating client: %v", err)
}
return client, nil
}
// creates a set of clients for this endpoint
func createClients(caCert []byte, endpoint, token string, nodeName types.NodeName) (*clientset.Clientset, error) {
bareClientConfig := kubeadmutil.CreateBasicClientConfig("kubernetes", endpoint, caCert)
bootstrapClientConfig, err := clientcmd.NewDefaultClientConfig(
*kubeadmutil.MakeClientConfigWithToken(
bareClientConfig, "kubernetes", fmt.Sprintf("kubelet-%s", nodeName), token,
),
&clientcmd.ConfigOverrides{},
).ClientConfig()
if err != nil {
return nil, fmt.Errorf("failed to create API client configuration [%v]", err)
}
clientSet, err := clientset.NewForConfig(bootstrapClientConfig)
if err != nil {
return nil, fmt.Errorf("failed to create clients for the API endpoint %s [%v]", endpoint, err)
}
return clientSet, nil
}
// PerformTLSBootstrap executes a node certificate signing request.
func PerformTLSBootstrap(cfg *clientcmdapi.Config) error {
hostName, err := os.Hostname()
if err != nil {
return err
}
name := types.NodeName(hostName)
rc, err := clientcmd.NewDefaultClientConfig(*cfg, &clientcmd.ConfigOverrides{}).ClientConfig()
if err != nil {
return err
}
c, err := clientset.NewForConfig(rc)
if err != nil {
return err
}
fmt.Println("[csr] Created API client to obtain unique certificate for this node, generating keys and certificate signing request")
key, err := certutil.MakeEllipticPrivateKeyPEM()
if err != nil {
return fmt.Errorf("failed to generate private key [%v]", err)
}
// Make sure there are no other nodes in the cluster with identical node name.
if err := checkForNodeNameDuplicates(c); err != nil {
return err
}
cert, err := csr.RequestNodeCertificate(c.Certificates().CertificateSigningRequests(), key, name)
if err != nil {
return fmt.Errorf("failed to request signed certificate from the API server [%v]", err)
}
fmt.Printf("[csr] Received signed certificate from the API server")
fmt.Println("[csr] Generating kubelet configuration")
cfg.AuthInfos["kubelet"] = &clientcmdapi.AuthInfo{
ClientKeyData: key,
ClientCertificateData: cert,
}
cfg.Contexts["kubelet"] = &clientcmdapi.Context{
AuthInfo: "kubelet",
Cluster: cfg.Contexts[cfg.CurrentContext].Cluster,
}
cfg.CurrentContext = "kubelet"
return nil
}
// PerformTLSBootstrap executes a certificate signing request with the
// provided connection details.
func PerformTLSBootstrap(cfg *clientcmdapi.Config) error {
hostName, err := os.Hostname()
if err != nil {
return err
}
name := types.NodeName(hostName)
rc, err := clientcmd.NewDefaultClientConfig(*cfg, nil).ClientConfig()
if err != nil {
return err
}
c, err := clientset.NewForConfig(rc)
if err != nil {
return err
}
fmt.Println("<node/csr> created API client to obtain unique certificate for this node, generating keys and certificate signing request")
key, err := certutil.MakeEllipticPrivateKeyPEM()
if err != nil {
return fmt.Errorf("<node/csr> failed to generating private key [%v]", err)
}
cert, err := csr.RequestNodeCertificate(c.Certificates().CertificateSigningRequests(), key, name)
if err != nil {
return fmt.Errorf("<node/csr> failed to request signed certificate from the API server [%v]", err)
}
fmtCert, err := certutil.FormatBytesCert(cert)
if err != nil {
return fmt.Errorf("<node/csr> failed to format certificate [%v]", err)
}
fmt.Printf("<node/csr> received signed certificate from the API server:\n%s\n", fmtCert)
fmt.Println("<node/csr> generating kubelet configuration")
cfg.AuthInfos["kubelet"] = &clientcmdapi.AuthInfo{
ClientKeyData: key,
ClientCertificateData: []byte(fmtCert),
}
cfg.Contexts["kubelet"] = &clientcmdapi.Context{
AuthInfo: "kubelet",
Cluster: cfg.Contexts[cfg.CurrentContext].Cluster,
}
cfg.CurrentContext = "kubelet"
return nil
}
// NewFactory builds a new openshift client factory from the given config
func NewFactory(config *kclient.Config) *clientcmd.Factory {
// keep only what we need to initialize a factory
clientConfig := kclientcmd.NewDefaultClientConfig(
*kclientcmdapi.NewConfig(),
&kclientcmd.ConfigOverrides{
ClusterInfo: kclientcmdapi.Cluster{
Server: config.Host,
APIVersion: config.Version,
InsecureSkipTLSVerify: config.Insecure,
},
AuthInfo: kclientcmdapi.AuthInfo{
Token: config.BearerToken,
},
Context: kclientcmdapi.Context{},
})
factory := clientcmd.NewFactory(clientConfig)
return factory
}
func clientFromConfig(path string) (*kclient.Config, string, error) {
if path == "-" {
cfg, err := kclient.InClusterConfig()
if err != nil {
return nil, "", fmt.Errorf("cluster config not available: %v", err)
}
return cfg, "", nil
}
rules := &kclientcmd.ClientConfigLoadingRules{ExplicitPath: path}
credentials, err := rules.Load()
if err != nil {
return nil, "", fmt.Errorf("the provided credentials %q could not be loaded: %v", path, err)
}
cfg := kclientcmd.NewDefaultClientConfig(*credentials, &kclientcmd.ConfigOverrides{})
config, err := cfg.ClientConfig()
if err != nil {
return nil, "", fmt.Errorf("the provided credentials %q could not be used: %v", path, err)
}
namespace, _, _ := cfg.Namespace()
return config, namespace, nil
}
func main() {
//kubeconfig = "/home/ubuntu/.kube/config"
// k8s.io/kubernetes/pkg/client/unversioned/clientcmd/loader.go
config, err := clientcmd.LoadFromFile(kubeconfig)
if err != nil {
log.Fatal(err)
}
// k8s.io/kubernetes/pkg/client/unversioned/clientcmd/client_config.go
clientConfig := clientcmd.NewDefaultClientConfig(*config, &clientcmd.ConfigOverrides{})
restConfig, err := clientConfig.ClientConfig()
if err != nil {
log.Fatal(err)
}
// k8s.io/kubernetes/pkg/client/unversioned/helper.go
kclient, err := unversioned.New(restConfig)
if err != nil {
log.Fatal(err)
}
// k8s.io/kubernetes/pkg/client/unversioned/client.go
// k8s.io/kubernetes/pkg/client/unversioned/pods.go
result, err := kclient.Pods("default").List(kapi.ListOptions{})
if err != nil {
log.Fatal(err)
}
// k8s.io/kubernetes/pkg/runtime/codec.go
// k8s.io/kubernetes/pkg/api/register.go
// k8s.io/kubernetes/pkg/runtime/serializer/codec_factory.go
b, err := runtime.Encode(kapi.Codecs.LegacyCodec(kapi.SchemeGroupVersion), result, kapi.SchemeGroupVersion)
if err != nil {
log.Fatal(err)
}
fmt.Printf("Output list:\n%s\n", b)
}
// Get kube client configuration from a file containing credentials for
// connecting to the master.
func getClientConfig(path string) (*restclient.Config, error) {
if 0 == len(path) {
return nil, fmt.Errorf("You must specify a .kubeconfig file path containing credentials for connecting to the master with --credentials")
}
rules := &kclientcmd.ClientConfigLoadingRules{ExplicitPath: path, Precedence: []string{}}
credentials, err := rules.Load()
if err != nil {
return nil, fmt.Errorf("Could not load credentials from %q: %v", path, err)
}
config, err := kclientcmd.NewDefaultClientConfig(*credentials, &kclientcmd.ConfigOverrides{}).ClientConfig()
if err != nil {
return nil, fmt.Errorf("Credentials %q error: %v", path, err)
}
if err = restclient.LoadTLSFiles(config); err != nil {
return nil, fmt.Errorf("Unable to load certificate info using credentials from %q: %v", path, err)
}
return config, nil
}
func DefaultClientConfig(flags *pflag.FlagSet) clientcmd.ClientConfig {
loadingRules := config.NewOpenShiftClientConfigLoadingRules()
flags.StringVar(&loadingRules.ExplicitPath, config.OpenShiftConfigFlagName, "", "Path to the config file to use for CLI requests.")
cobra.MarkFlagFilename(flags, config.OpenShiftConfigFlagName)
// set our explicit defaults
defaultOverrides := &clientcmd.ConfigOverrides{ClusterDefaults: clientcmdapi.Cluster{Server: os.Getenv("KUBERNETES_MASTER")}}
loadingRules.DefaultClientConfig = clientcmd.NewDefaultClientConfig(clientcmdapi.Config{}, defaultOverrides)
overrides := &clientcmd.ConfigOverrides{ClusterDefaults: defaultOverrides.ClusterDefaults}
overrideFlags := clientcmd.RecommendedConfigOverrideFlags("")
overrideFlags.ContextOverrideFlags.Namespace.ShortName = "n"
overrideFlags.AuthOverrideFlags.Username.LongName = ""
overrideFlags.AuthOverrideFlags.Password.LongName = ""
clientcmd.BindOverrideFlags(overrides, flags, overrideFlags)
cobra.MarkFlagFilename(flags, overrideFlags.AuthOverrideFlags.ClientCertificate.LongName)
cobra.MarkFlagFilename(flags, overrideFlags.AuthOverrideFlags.ClientKey.LongName)
cobra.MarkFlagFilename(flags, overrideFlags.ClusterOverrideFlags.CertificateAuthority.LongName)
clientConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, overrides)
return clientConfig
}
// creates a set of clients for this endpoint
func createClients(caCert []byte, endpoint, token string, nodeName types.NodeName) (*apiClient, error) {
clientConfig := kubeconfigphase.MakeClientConfigWithToken(
endpoint,
"kubernetes",
fmt.Sprintf("kubelet-%s", nodeName),
caCert,
token,
)
bootstrapClientConfig, err := clientcmd.NewDefaultClientConfig(*clientConfig, &clientcmd.ConfigOverrides{}).ClientConfig()
if err != nil {
return nil, fmt.Errorf("failed to create API client configuration [%v]", err)
}
clientSet, err := clientset.NewForConfig(bootstrapClientConfig)
if err != nil {
return nil, fmt.Errorf("failed to create clients for the API endpoint %q: [%v]", endpoint, err)
}
ac := &apiClient{
clientSet: clientSet,
clientConfig: clientConfig,
}
return ac, nil
}
// RunCmdRouter contains all the necessary functionality for the
// OpenShift CLI router command.
func RunCmdRouter(f *clientcmd.Factory, cmd *cobra.Command, out io.Writer, cfg *RouterConfig, args []string) error {
var name string
switch len(args) {
case 0:
name = "router"
case 1:
name = args[0]
default:
return cmdutil.UsageError(cmd, "You may pass zero or one arguments to provide a name for the router")
}
if len(cfg.StatsUsername) > 0 {
if strings.Contains(cfg.StatsUsername, ":") {
return cmdutil.UsageError(cmd, "username %s must not contain ':'", cfg.StatsUsername)
}
}
ports, err := app.ContainerPortsFromString(cfg.Ports)
if err != nil {
glog.Fatal(err)
}
// For the host networking case, ensure the ports match.
if cfg.HostNetwork {
for i := 0; i < len(ports); i++ {
if ports[i].ContainerPort != ports[i].HostPort {
return cmdutil.UsageError(cmd, "For host networking mode, please ensure that the container [%v] and host [%v] ports match", ports[i].ContainerPort, ports[i].HostPort)
}
}
}
if cfg.StatsPort > 0 {
ports = append(ports, kapi.ContainerPort{
Name: "stats",
HostPort: cfg.StatsPort,
ContainerPort: cfg.StatsPort,
Protocol: kapi.ProtocolTCP,
})
}
label := map[string]string{"router": name}
if cfg.Labels != defaultLabel {
valid, remove, err := app.LabelsFromSpec(strings.Split(cfg.Labels, ","))
if err != nil {
glog.Fatal(err)
}
if len(remove) > 0 {
return cmdutil.UsageError(cmd, "You may not pass negative labels in %q", cfg.Labels)
}
label = valid
}
nodeSelector := map[string]string{}
if len(cfg.Selector) > 0 {
valid, remove, err := app.LabelsFromSpec(strings.Split(cfg.Selector, ","))
if err != nil {
glog.Fatal(err)
}
if len(remove) > 0 {
return cmdutil.UsageError(cmd, "You may not pass negative labels in selector %q", cfg.Selector)
}
nodeSelector = valid
}
image := cfg.ImageTemplate.ExpandOrDie(cfg.Type)
namespace, _, err := f.OpenShiftClientConfig.Namespace()
if err != nil {
return fmt.Errorf("error getting client: %v", err)
}
_, kClient, err := f.Clients()
if err != nil {
return fmt.Errorf("error getting client: %v", err)
}
_, output, err := cmdutil.PrinterForCommand(cmd)
if err != nil {
return fmt.Errorf("unable to configure printer: %v", err)
}
generate := output
if !generate {
_, err = kClient.Services(namespace).Get(name)
if err != nil {
if !errors.IsNotFound(err) {
return fmt.Errorf("can't check for existing router %q: %v", name, err)
}
generate = true
}
}
if generate {
if cfg.DryRun && !output {
return fmt.Errorf("router %q does not exist (no service)", name)
}
if len(cfg.ServiceAccount) == 0 {
return fmt.Errorf("router could not be created; you must specify a service account with --service-account")
}
err := validateServiceAccount(kClient, namespace, cfg.ServiceAccount)
if err != nil {
return fmt.Errorf("router could not be created; %v", err)
}
// create new router
if len(cfg.Credentials) == 0 {
return fmt.Errorf("router could not be created; you must specify a .kubeconfig file path containing credentials for connecting the router to the master with --credentials")
}
clientConfigLoadingRules := &kclientcmd.ClientConfigLoadingRules{ExplicitPath: cfg.Credentials, Precedence: []string{}}
credentials, err := clientConfigLoadingRules.Load()
if err != nil {
return fmt.Errorf("router could not be created; the provided credentials %q could not be loaded: %v", cfg.Credentials, err)
}
config, err := kclientcmd.NewDefaultClientConfig(*credentials, &kclientcmd.ConfigOverrides{}).ClientConfig()
if err != nil {
return fmt.Errorf("router could not be created; the provided credentials %q could not be used: %v", cfg.Credentials, err)
}
if err := kclient.LoadTLSFiles(config); err != nil {
return fmt.Errorf("router could not be created; the provided credentials %q could not load certificate info: %v", cfg.Credentials, err)
}
insecure := "false"
if config.Insecure {
insecure = "true"
}
defaultCert, err := loadCert(cfg.DefaultCertificate)
if err != nil {
return fmt.Errorf("router could not be created; error reading default certificate file: %v", err)
}
if len(cfg.StatsPassword) == 0 {
cfg.StatsPassword = generateStatsPassword()
fmt.Fprintf(out, "password for stats user %s has been set to %s\n", cfg.StatsUsername, cfg.StatsPassword)
}
env := app.Environment{
"OPENSHIFT_MASTER": config.Host,
"OPENSHIFT_CA_DATA": string(config.CAData),
"OPENSHIFT_KEY_DATA": string(config.KeyData),
"OPENSHIFT_CERT_DATA": string(config.CertData),
"OPENSHIFT_INSECURE": insecure,
"DEFAULT_CERTIFICATE": defaultCert,
"ROUTER_SERVICE_NAME": name,
"ROUTER_SERVICE_NAMESPACE": namespace,
"ROUTER_EXTERNAL_HOST_HOSTNAME": cfg.ExternalHost,
"ROUTER_EXTERNAL_HOST_USERNAME": cfg.ExternalHostUsername,
"ROUTER_EXTERNAL_HOST_PASSWORD": cfg.ExternalHostPassword,
"ROUTER_EXTERNAL_HOST_HTTP_VSERVER": cfg.ExternalHostHttpVserver,
"ROUTER_EXTERNAL_HOST_HTTPS_VSERVER": cfg.ExternalHostHttpsVserver,
"ROUTER_EXTERNAL_HOST_INSECURE": strconv.FormatBool(cfg.ExternalHostInsecure),
"ROUTER_EXTERNAL_HOST_PARTITION_PATH": cfg.ExternalHostPartitionPath,
"ROUTER_EXTERNAL_HOST_PRIVKEY": privkeyPath,
"STATS_PORT": strconv.Itoa(cfg.StatsPort),
"STATS_USERNAME": cfg.StatsUsername,
"STATS_PASSWORD": cfg.StatsPassword,
}
updatePercent := int(-25)
secrets, volumes, mounts, err := generateSecretsConfig(cfg, kClient,
namespace)
if err != nil {
return fmt.Errorf("router could not be created: %v", err)
}
livenessProbe := generateLivenessProbeConfig(cfg, ports)
containers := []kapi.Container{
{
Name: "router",
Image: image,
Ports: ports,
Env: env.List(),
LivenessProbe: livenessProbe,
ImagePullPolicy: kapi.PullIfNotPresent,
VolumeMounts: mounts,
},
}
if cfg.StatsPort > 0 && cfg.ExposeMetrics {
pc := generateMetricsExporterContainer(cfg, env)
if pc != nil {
containers = append(containers, *pc)
}
}
objects := []runtime.Object{
&dapi.DeploymentConfig{
ObjectMeta: kapi.ObjectMeta{
Name: name,
Labels: label,
},
Triggers: []dapi.DeploymentTriggerPolicy{
{Type: dapi.DeploymentTriggerOnConfigChange},
},
Template: dapi.DeploymentTemplate{
Strategy: dapi.DeploymentStrategy{
Type: dapi.DeploymentStrategyTypeRolling,
RollingParams: &dapi.RollingDeploymentStrategyParams{UpdatePercent: &updatePercent},
},
ControllerTemplate: kapi.ReplicationControllerSpec{
Replicas: cfg.Replicas,
Selector: label,
Template: &kapi.PodTemplateSpec{
ObjectMeta: kapi.ObjectMeta{Labels: label},
Spec: kapi.PodSpec{
SecurityContext: &kapi.PodSecurityContext{
HostNetwork: cfg.HostNetwork,
},
ServiceAccountName: cfg.ServiceAccount,
NodeSelector: nodeSelector,
Containers: containers,
Volumes: volumes,
},
},
},
},
},
}
if len(secrets) != 0 {
serviceAccount, err := kClient.ServiceAccounts(namespace).Get(cfg.ServiceAccount)
if err != nil {
return fmt.Errorf("error looking up service account %s: %v",
cfg.ServiceAccount, err)
}
for _, secret := range secrets {
objects = append(objects, secret)
serviceAccount.Secrets = append(serviceAccount.Secrets,
kapi.ObjectReference{Name: secret.Name})
}
_, err = kClient.ServiceAccounts(namespace).Update(serviceAccount)
if err != nil {
return fmt.Errorf("error adding secret key to service account %s: %v",
cfg.ServiceAccount, err)
}
}
objects = app.AddServices(objects, true)
// TODO: label all created objects with the same label - router=<name>
list := &kapi.List{Items: objects}
if output {
if err := f.PrintObject(cmd, list, out); err != nil {
return fmt.Errorf("Unable to print object: %v", err)
}
return nil
}
mapper, typer := f.Factory.Object()
bulk := configcmd.Bulk{
Mapper: mapper,
Typer: typer,
RESTClientFactory: f.Factory.RESTClient,
After: configcmd.NewPrintNameOrErrorAfter(mapper, cmdutil.GetFlagString(cmd, "output") == "name", "created", out, cmd.Out()),
}
if errs := bulk.Create(list, namespace); len(errs) != 0 {
return errExit
}
return nil
}
fmt.Fprintf(out, "Router %q service exists\n", name)
return nil
}
func main() {
flag.Parse()
glog.Infof("Starting serve_hostnames soak test with queries=%d and podsPerNode=%d upTo=%d",
*queriesAverage, *podsPerNode, *upTo)
var spec string
if *gke != "" {
spec = filepath.Join(os.Getenv("HOME"), ".config", "gcloud", "kubernetes", "kubeconfig")
} else {
spec = filepath.Join(os.Getenv("HOME"), ".kube", "config")
}
settings, err := clientcmd.LoadFromFile(spec)
if err != nil {
glog.Fatalf("Error loading configuration: %v", err.Error())
}
if *gke != "" {
settings.CurrentContext = *gke
}
config, err := clientcmd.NewDefaultClientConfig(*settings, &clientcmd.ConfigOverrides{}).ClientConfig()
if err != nil {
glog.Fatalf("Failed to construct config: %v", err)
}
c, err := client.New(config)
if err != nil {
glog.Fatalf("Failed to make client: %v", err)
}
var nodes *api.NodeList
for start := time.Now(); time.Since(start) < nodeListTimeout; time.Sleep(2 * time.Second) {
nodes, err = c.Nodes().List(api.ListOptions{})
if err == nil {
break
}
glog.Warningf("Failed to list nodes: %v", err)
}
if err != nil {
glog.Fatalf("Giving up trying to list nodes: %v", err)
}
if len(nodes.Items) == 0 {
glog.Fatalf("Failed to find any nodes.")
}
glog.Infof("Found %d nodes on this cluster:", len(nodes.Items))
for i, node := range nodes.Items {
glog.Infof("%d: %s", i, node.Name)
}
queries := *queriesAverage * len(nodes.Items) * *podsPerNode
// Create the namespace
got, err := c.Namespaces().Create(&api.Namespace{ObjectMeta: api.ObjectMeta{GenerateName: "serve-hostnames-"}})
if err != nil {
glog.Fatalf("Failed to create namespace: %v", err)
}
ns := got.Name
defer func(ns string) {
if err := c.Namespaces().Delete(ns); err != nil {
glog.Warningf("Failed to delete namespace ns: %e", ns, err)
} else {
// wait until the namespace disappears
for i := 0; i < int(namespaceDeleteTimeout/time.Second); i++ {
if _, err := c.Namespaces().Get(ns); err != nil {
if errors.IsNotFound(err) {
return
}
}
time.Sleep(time.Second)
}
}
}(ns)
glog.Infof("Created namespace %s", ns)
// Create a service for these pods.
glog.Infof("Creating service %s/serve-hostnames", ns)
// Make several attempts to create a service.
var svc *api.Service
for start := time.Now(); time.Since(start) < serviceCreateTimeout; time.Sleep(2 * time.Second) {
t := time.Now()
svc, err = c.Services(ns).Create(&api.Service{
ObjectMeta: api.ObjectMeta{
Name: "serve-hostnames",
Labels: map[string]string{
"name": "serve-hostname",
},
},
Spec: api.ServiceSpec{
Ports: []api.ServicePort{{
Protocol: "TCP",
Port: 9376,
TargetPort: intstr.FromInt(9376),
}},
Selector: map[string]string{
"name": "serve-hostname",
},
},
})
glog.V(4).Infof("Service create %s/server-hostnames took %v", ns, time.Since(t))
if err == nil {
break
}
glog.Warningf("After %v failed to create service %s/serve-hostnames: %v", time.Since(start), ns, err)
}
if err != nil {
glog.Warningf("Unable to create service %s/%s: %v", ns, svc.Name, err)
return
}
// Clean up service
defer func() {
glog.Infof("Cleaning up service %s/serve-hostnames", ns)
// Make several attempts to delete the service.
for start := time.Now(); time.Since(start) < deleteTimeout; time.Sleep(1 * time.Second) {
if err := c.Services(ns).Delete(svc.Name); err == nil {
return
}
glog.Warningf("After %v unable to delete service %s/%s: %v", time.Since(start), ns, svc.Name, err)
}
}()
// Put serve-hostname pods on each node.
podNames := []string{}
for i, node := range nodes.Items {
for j := 0; j < *podsPerNode; j++ {
podName := fmt.Sprintf("serve-hostname-%d-%d", i, j)
podNames = append(podNames, podName)
// Make several attempts
for start := time.Now(); time.Since(start) < podCreateTimeout; time.Sleep(2 * time.Second) {
glog.Infof("Creating pod %s/%s on node %s", ns, podName, node.Name)
t := time.Now()
_, err = c.Pods(ns).Create(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: podName,
Labels: map[string]string{
"name": "serve-hostname",
},
},
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: "serve-hostname",
Image: "gcr.io/google_containers/serve_hostname:1.1",
Ports: []api.ContainerPort{{ContainerPort: 9376}},
},
},
NodeName: node.Name,
},
})
glog.V(4).Infof("Pod create %s/%s request took %v", ns, podName, time.Since(t))
if err == nil {
break
}
glog.Warningf("After %s failed to create pod %s/%s: %v", time.Since(start), ns, podName, err)
}
if err != nil {
glog.Warningf("Failed to create pod %s/%s: %v", ns, podName, err)
return
}
}
}
// Clean up the pods
defer func() {
glog.Info("Cleaning up pods")
// Make several attempts to delete the pods.
for _, podName := range podNames {
for start := time.Now(); time.Since(start) < deleteTimeout; time.Sleep(1 * time.Second) {
if err = c.Pods(ns).Delete(podName, nil); err == nil {
break
}
glog.Warningf("After %v failed to delete pod %s/%s: %v", time.Since(start), ns, podName, err)
}
}
}()
glog.Info("Waiting for the serve-hostname pods to be ready")
for _, podName := range podNames {
var pod *api.Pod
for start := time.Now(); time.Since(start) < podStartTimeout; time.Sleep(5 * time.Second) {
pod, err = c.Pods(ns).Get(podName)
if err != nil {
glog.Warningf("Get pod %s/%s failed, ignoring for %v: %v", ns, podName, err, podStartTimeout)
continue
}
if pod.Status.Phase == api.PodRunning {
break
}
}
if pod.Status.Phase != api.PodRunning {
glog.Warningf("Gave up waiting on pod %s/%s to be running (saw %v)", ns, podName, pod.Status.Phase)
} else {
glog.Infof("%s/%s is running", ns, podName)
}
}
// Wait for the endpoints to propagate.
for start := time.Now(); time.Since(start) < endpointTimeout; time.Sleep(10 * time.Second) {
hostname, err := c.Get().
Namespace(ns).
Prefix("proxy").
Resource("services").
Name("serve-hostnames").
DoRaw()
if err != nil {
glog.Infof("After %v while making a proxy call got error %v", time.Since(start), err)
continue
}
var r unversioned.Status
if err := runtime.DecodeInto(api.Codecs.UniversalDecoder(), hostname, &r); err != nil {
break
}
if r.Status == unversioned.StatusFailure {
glog.Infof("After %v got status %v", time.Since(start), string(hostname))
continue
}
break
}
// Repeatedly make requests.
for iteration := 0; iteration != *upTo; iteration++ {
responseChan := make(chan string, queries)
// Use a channel of size *maxPar to throttle the number
// of in-flight requests to avoid overloading the service.
inFlight := make(chan struct{}, *maxPar)
start := time.Now()
for q := 0; q < queries; q++ {
go func(i int, query int) {
inFlight <- struct{}{}
t := time.Now()
hostname, err := c.Get().
Namespace(ns).
Prefix("proxy").
Resource("services").
Name("serve-hostnames").
DoRaw()
glog.V(4).Infof("Proxy call in namespace %s took %v", ns, time.Since(t))
if err != nil {
glog.Warningf("Call failed during iteration %d query %d : %v", i, query, err)
// If the query failed return a string which starts with a character
// that can't be part of a hostname.
responseChan <- fmt.Sprintf("!failed in iteration %d to issue query %d: %v", i, query, err)
} else {
responseChan <- string(hostname)
}
<-inFlight
}(iteration, q)
}
responses := make(map[string]int, *podsPerNode*len(nodes.Items))
missing := 0
for q := 0; q < queries; q++ {
r := <-responseChan
glog.V(4).Infof("Got response from %s", r)
responses[r]++
// If the returned hostname starts with '!' then it indicates
// an error response.
if len(r) > 0 && r[0] == '!' {
glog.V(3).Infof("Got response %s", r)
missing++
}
}
if missing > 0 {
glog.Warningf("Missing %d responses out of %d", missing, queries)
}
// Report any nodes that did not respond.
for n, node := range nodes.Items {
for i := 0; i < *podsPerNode; i++ {
name := fmt.Sprintf("serve-hostname-%d-%d", n, i)
if _, ok := responses[name]; !ok {
glog.Warningf("No response from pod %s on node %s at iteration %d", name, node.Name, iteration)
}
}
}
glog.Infof("Iteration %d took %v for %d queries (%.2f QPS) with %d missing",
iteration, time.Since(start), queries-missing, float64(queries-missing)/time.Since(start).Seconds(), missing)
}
}
func CreateClientAndWaitForAPI(adminConfig *clientcmdapi.Config) (*clientset.Clientset, error) {
adminClientConfig, err := clientcmd.NewDefaultClientConfig(
*adminConfig,
&clientcmd.ConfigOverrides{},
).ClientConfig()
if err != nil {
return nil, fmt.Errorf("<master/apiclient> failed to create API client configuration [%v]", err)
}
fmt.Println("<master/apiclient> created API client configuration")
client, err := clientset.NewForConfig(adminClientConfig)
if err != nil {
return nil, fmt.Errorf("<master/apiclient> failed to create API client [%v]", err)
}
fmt.Println("<master/apiclient> created API client, waiting for the control plane to become ready")
start := time.Now()
wait.PollInfinite(apiCallRetryInterval, func() (bool, error) {
cs, err := client.ComponentStatuses().List(api.ListOptions{})
if err != nil {
return false, nil
}
// TODO(phase2) must revisit this when we implement HA
if len(cs.Items) < 3 {
fmt.Println("<master/apiclient> not all control plane components are ready yet")
return false, nil
}
for _, item := range cs.Items {
for _, condition := range item.Conditions {
if condition.Type != api.ComponentHealthy {
fmt.Printf("<master/apiclient> control plane component %q is still unhealthy: %#v\n", item.ObjectMeta.Name, item.Conditions)
return false, nil
}
}
}
fmt.Printf("<master/apiclient> all control plane components are healthy after %f seconds\n", time.Since(start).Seconds())
return true, nil
})
fmt.Println("<master/apiclient> waiting for at least one node to register and become ready")
start = time.Now()
wait.PollInfinite(apiCallRetryInterval, func() (bool, error) {
nodeList, err := client.Nodes().List(api.ListOptions{})
if err != nil {
fmt.Println("<master/apiclient> temporarily unable to list nodes (will retry)")
return false, nil
}
if len(nodeList.Items) < 1 {
return false, nil
}
n := &nodeList.Items[0]
if !api.IsNodeReady(n) {
fmt.Println("<master/apiclient> first node has registered, but is not ready yet")
return false, nil
}
fmt.Printf("<master/apiclient> first node is ready after %f seconds\n", time.Since(start).Seconds())
return true, nil
})
return client, nil
}
// Negotiate a bearer token with the auth server, or try to reuse one based on the
// information already present. In case of any missing information, ask for user input
// (usually username and password, interactive depending on the Reader).
func (o *LoginOptions) gatherAuthInfo() error {
directClientConfig, err := o.getClientConfig()
if err != nil {
return err
}
// make a copy and use it to avoid mutating the original
t := *directClientConfig
clientConfig := &t
// if a token were explicitly provided, try to use it
if o.tokenProvided() {
clientConfig.BearerToken = o.Token
if osClient, err := client.New(clientConfig); err == nil {
me, err := whoAmI(osClient)
if err == nil {
o.Username = me.Name
o.Config = clientConfig
fmt.Fprintf(o.Out, "Logged into %q as %q using the token provided.\n\n", o.Config.Host, o.Username)
return nil
}
if !kerrors.IsUnauthorized(err) {
return err
}
fmt.Fprint(o.Out, "The token provided is invalid (probably expired).\n\n")
}
}
// if a username was provided try to make use of it
if o.usernameProvided() {
// search all valid contexts with matching server stanzas to see if we have a matching user stanza
kubeconfig := *o.StartingKubeConfig
matchingClusters := getMatchingClusters(*clientConfig, kubeconfig)
for key, context := range o.StartingKubeConfig.Contexts {
if matchingClusters.Has(context.Cluster) {
clientcmdConfig := kclientcmd.NewDefaultClientConfig(kubeconfig, &kclientcmd.ConfigOverrides{CurrentContext: key})
if kubeconfigClientConfig, err := clientcmdConfig.ClientConfig(); err == nil {
if osClient, err := client.New(kubeconfigClientConfig); err == nil {
if me, err := whoAmI(osClient); err == nil && (o.Username == me.Name) {
clientConfig.BearerToken = kubeconfigClientConfig.BearerToken
clientConfig.CertFile = kubeconfigClientConfig.CertFile
clientConfig.CertData = kubeconfigClientConfig.CertData
clientConfig.KeyFile = kubeconfigClientConfig.KeyFile
clientConfig.KeyData = kubeconfigClientConfig.KeyData
o.Config = clientConfig
if key == o.StartingKubeConfig.CurrentContext {
fmt.Fprintf(o.Out, "Logged into %q as %q using existing credentials.\n\n", o.Config.Host, o.Username)
}
return nil
}
}
}
}
}
}
// if kubeconfig doesn't already have a matching user stanza...
clientConfig.BearerToken = ""
clientConfig.CertData = []byte{}
clientConfig.KeyData = []byte{}
clientConfig.CertFile = o.CertFile
clientConfig.KeyFile = o.KeyFile
token, err := tokencmd.RequestToken(o.Config, o.Reader, o.Username, o.Password)
if err != nil {
return err
}
clientConfig.BearerToken = token
osClient, err := client.New(clientConfig)
if err != nil {
return err
}
me, err := whoAmI(osClient)
if err != nil {
return err
}
o.Username = me.Name
o.Config = clientConfig
fmt.Fprint(o.Out, "Login successful.\n\n")
return nil
}
// Check is part of the Diagnostic interface; it runs the actual diagnostic logic
func (d ConfigContext) Check() types.DiagnosticResult {
r := types.NewDiagnosticResult(ConfigContextsName)
isDefaultContext := d.RawConfig.CurrentContext == d.ContextName
// prepare bad news message
errorKey := "DCli0001"
unusableLine := fmt.Sprintf("The client config context '%s' is unusable", d.ContextName)
if isDefaultContext {
errorKey = "DCli0002"
unusableLine = fmt.Sprintf("The current client config context '%s' is unusable", d.ContextName)
}
// check that the context and its constituents are defined in the kubeconfig
context, exists := d.RawConfig.Contexts[d.ContextName]
if !exists {
r.Error(errorKey, nil, fmt.Sprintf("%s:\n Client config context '%s' is not defined.", unusableLine, d.ContextName))
return r
}
clusterName := context.Cluster
cluster, exists := d.RawConfig.Clusters[clusterName]
if !exists {
r.Error(errorKey, nil, fmt.Sprintf("%s:\n Client config context '%s' has a cluster '%s' which is not defined.", unusableLine, d.ContextName, clusterName))
return r
}
authName := context.AuthInfo
if _, exists := d.RawConfig.AuthInfos[authName]; !exists {
r.Error(errorKey, nil, fmt.Sprintf("%s:\n Client config context '%s' has a user '%s' which is not defined.", unusableLine, d.ContextName, authName))
return r
}
// we found a fully-defined context
project := context.Namespace
if project == "" {
project = kapi.NamespaceDefault // k8s fills this in anyway if missing from the context
}
msgText := contextDesc
if isDefaultContext {
msgText = currContextDesc
}
msgText = fmt.Sprintf(msgText, d.ContextName, cluster.Server, authName, project)
// Actually send a request to see if context has connectivity.
// Note: we cannot reuse factories as they cache the clients, so build new factory for each context.
osClient, _, _, err := osclientcmd.NewFactory(kclientcmd.NewDefaultClientConfig(*d.RawConfig, &kclientcmd.ConfigOverrides{Context: *context})).Clients()
// client create now *fails* if cannot connect to server; so, address connectivity errors below
if err == nil {
if projects, projerr := osClient.Projects().List(kapi.ListOptions{}); projerr != nil {
err = projerr
} else { // success!
list := []string{}
for i, project := range projects.Items {
if i > 9 {
list = append(list, "...")
break
}
list = append(list, project.Name)
}
if len(list) == 0 {
r.Info("DCli0003", msgText+"Successfully requested project list, but it is empty, so user has no access to anything.")
} else {
r.Info("DCli0004", msgText+fmt.Sprintf("Successfully requested project list; has access to project(s):\n %v", list))
}
return r
}
}
// something went wrong; couldn't create client or get project list.
// interpret the terse error messages with helpful info.
errMsg := err.Error()
errFull := fmt.Sprintf("(%T) %[1]v\n", err)
var reason, errId string
switch {
case regexp.MustCompile("dial tcp: lookup (\\S+): no such host").MatchString(errMsg):
errId, reason = "DCli0005", clientNoResolve
case strings.Contains(errMsg, "x509: certificate signed by unknown authority"):
errId, reason = "DCli0006", clientUnknownCa
case strings.Contains(errMsg, "specifying a root certificates file with the insecure flag is not allowed"):
errId, reason = "DCli0007", clientUnneededCa
case invalidCertNameRx.MatchString(errMsg):
match := invalidCertNameRx.FindStringSubmatch(errMsg)
serverHost := match[len(match)-1]
errId, reason = "DCli0008", fmt.Sprintf(clientInvCertName, serverHost)
case regexp.MustCompile("dial tcp (\\S+): connection refused").MatchString(errMsg):
errId, reason = "DCli0009", clientConnRefused
case regexp.MustCompile("dial tcp (\\S+): (?:connection timed out|i/o timeout|no route to host)").MatchString(errMsg):
errId, reason = "DCli0010", clientConnTimeout
case strings.Contains(errMsg, "malformed HTTP response"):
errId, reason = "DCli0011", clientMalformedHTTP
case strings.Contains(errMsg, "tls: oversized record received with length"):
errId, reason = "DCli0012", clientMalformedTLS
case strings.Contains(errMsg, `User "system:anonymous" cannot`):
errId, reason = "DCli0013", clientUnauthn
case strings.Contains(errMsg, "provide credentials"):
errId, reason = "DCli0014", clientUnauthz
default:
errId, reason = "DCli0015", `Diagnostics does not have an explanation for what this means. Please report this error so one can be added.`
}
r.Error(errId, err, msgText+errFull+reason)
return r
}
// RunCmdRegistry contains all the necessary functionality for the OpenShift cli registry command
func RunCmdRegistry(f *clientcmd.Factory, cmd *cobra.Command, out io.Writer, cfg *RegistryConfig, args []string) error {
var name string
switch len(args) {
case 0:
name = "docker-registry"
default:
return cmdutil.UsageError(cmd, "No arguments are allowed to this command")
}
ports, err := app.ContainerPortsFromString(cfg.Ports)
if err != nil {
return err
}
label := map[string]string{
"docker-registry": "default",
}
if cfg.Labels != defaultLabel {
valid, remove, err := app.LabelsFromSpec(strings.Split(cfg.Labels, ","))
if err != nil {
return err
}
if len(remove) > 0 {
return cmdutil.UsageError(cmd, "You may not pass negative labels in %q", cfg.Labels)
}
label = valid
}
nodeSelector := map[string]string{}
if len(cfg.Selector) > 0 {
valid, remove, err := app.LabelsFromSpec(strings.Split(cfg.Selector, ","))
if err != nil {
return err
}
if len(remove) > 0 {
return cmdutil.UsageError(cmd, "You may not pass negative labels in selector %q", cfg.Selector)
}
nodeSelector = valid
}
image := cfg.ImageTemplate.ExpandOrDie(cfg.Type)
namespace, _, err := f.OpenShiftClientConfig.Namespace()
if err != nil {
return fmt.Errorf("error getting client: %v", err)
}
_, kClient, err := f.Clients()
if err != nil {
return fmt.Errorf("error getting client: %v", err)
}
_, output, err := cmdutil.PrinterForCommand(cmd)
if err != nil {
return fmt.Errorf("unable to configure printer: %v", err)
}
generate := output
if !generate {
_, err = kClient.Services(namespace).Get(name)
if err != nil {
if !errors.IsNotFound(err) {
return fmt.Errorf("can't check for existing docker-registry %q: %v", name, err)
}
generate = true
}
}
if generate {
if cfg.DryRun && !output {
return fmt.Errorf("docker-registry %q does not exist (no service).", name)
}
// create new registry
if len(cfg.Credentials) == 0 {
return fmt.Errorf("registry does not exist; you must specify a .kubeconfig file path containing credentials for connecting the registry to the master with --credentials")
}
clientConfigLoadingRules := &kclientcmd.ClientConfigLoadingRules{ExplicitPath: cfg.Credentials}
credentials, err := clientConfigLoadingRules.Load()
if err != nil {
return fmt.Errorf("registry does not exist; the provided credentials %q could not be loaded: %v", cfg.Credentials, err)
}
config, err := kclientcmd.NewDefaultClientConfig(*credentials, &kclientcmd.ConfigOverrides{}).ClientConfig()
if err != nil {
return fmt.Errorf("registry does not exist; the provided credentials %q could not be used: %v", cfg.Credentials, err)
}
if err := kclient.LoadTLSFiles(config); err != nil {
return fmt.Errorf("registry does not exist; the provided credentials %q could not load certificate info: %v", cfg.Credentials, err)
}
insecure := "false"
if config.Insecure {
insecure = "true"
} else {
if len(config.KeyData) == 0 || len(config.CertData) == 0 {
return fmt.Errorf("registry does not exist; the provided credentials %q are missing the client certificate and/or key", cfg.Credentials)
}
}
env := app.Environment{
"OPENSHIFT_MASTER": config.Host,
"OPENSHIFT_CA_DATA": string(config.CAData),
"OPENSHIFT_KEY_DATA": string(config.KeyData),
"OPENSHIFT_CERT_DATA": string(config.CertData),
"OPENSHIFT_INSECURE": insecure,
}
healthzPort := defaultPort
if len(ports) > 0 {
healthzPort = ports[0].ContainerPort
env["REGISTRY_HTTP_ADDR"] = fmt.Sprintf(":%d", healthzPort)
env["REGISTRY_HTTP_NET"] = "tcp"
}
livenessProbe := generateLivenessProbeConfig(healthzPort)
readinessProbe := generateReadinessProbeConfig(healthzPort)
secretBytes := make([]byte, randomSecretSize)
if _, err := cryptorand.Read(secretBytes); err != nil {
return fmt.Errorf("registry does not exist; could not generate random bytes for HTTP secret: %v", err)
}
env["REGISTRY_HTTP_SECRET"] = base64.StdEncoding.EncodeToString(secretBytes)
mountHost := len(cfg.HostMount) > 0
podTemplate := &kapi.PodTemplateSpec{
ObjectMeta: kapi.ObjectMeta{Labels: label},
Spec: kapi.PodSpec{
ServiceAccountName: cfg.ServiceAccount,
NodeSelector: nodeSelector,
Containers: []kapi.Container{
{
Name: "registry",
Image: image,
Ports: ports,
Env: env.List(),
VolumeMounts: []kapi.VolumeMount{
{
Name: "registry-storage",
MountPath: cfg.Volume,
},
},
SecurityContext: &kapi.SecurityContext{
Privileged: &mountHost,
},
LivenessProbe: livenessProbe,
ReadinessProbe: readinessProbe,
},
},
Volumes: []kapi.Volume{
{
Name: "registry-storage",
VolumeSource: kapi.VolumeSource{},
},
},
},
}
if mountHost {
podTemplate.Spec.Volumes[0].HostPath = &kapi.HostPathVolumeSource{Path: cfg.HostMount}
} else {
podTemplate.Spec.Volumes[0].EmptyDir = &kapi.EmptyDirVolumeSource{}
}
objects := []runtime.Object{
&dapi.DeploymentConfig{
ObjectMeta: kapi.ObjectMeta{
Name: name,
Labels: label,
},
Spec: dapi.DeploymentConfigSpec{
Replicas: cfg.Replicas,
Selector: label,
Triggers: []dapi.DeploymentTriggerPolicy{
{Type: dapi.DeploymentTriggerOnConfigChange},
},
Template: podTemplate,
},
},
}
objects = app.AddServices(objects, true)
// Set registry service's sessionAffinity to ClientIP to prevent push
// failures due to a use of poorly consistent storage shared by
// multiple replicas.
for _, obj := range objects {
switch t := obj.(type) {
case *kapi.Service:
t.Spec.SessionAffinity = kapi.ServiceAffinityClientIP
}
}
// TODO: label all created objects with the same label
list := &kapi.List{Items: objects}
if output {
if err := f.PrintObject(cmd, list, out); err != nil {
return fmt.Errorf("unable to print object: %v", err)
}
return nil
}
mapper, typer := f.Factory.Object()
bulk := configcmd.Bulk{
Mapper: mapper,
Typer: typer,
RESTClientFactory: f.Factory.RESTClient,
After: configcmd.NewPrintNameOrErrorAfter(mapper, cmdutil.GetFlagString(cmd, "output") == "name", "created", out, cmd.Out()),
}
if errs := bulk.Create(list, namespace); len(errs) != 0 {
return errExit
}
return nil
}
fmt.Fprintf(out, "Docker registry %q service exists\n", name)
return nil
}
// RunCmdRegistry contains all the necessary functionality for the OpenShift cli registry command
func RunCmdRegistry(f *clientcmd.Factory, cmd *cobra.Command, out io.Writer, cfg *RegistryConfig, args []string) error {
var name string
switch len(args) {
case 0:
name = "docker-registry"
default:
return cmdutil.UsageError(cmd, "No arguments are allowed to this command")
}
ports, err := app.ContainerPortsFromString(cfg.Ports)
if err != nil {
return err
}
label := map[string]string{
"docker-registry": "default",
}
if cfg.Labels != defaultLabel {
valid, remove, err := app.LabelsFromSpec(strings.Split(cfg.Labels, ","))
if err != nil {
return err
}
if len(remove) > 0 {
return cmdutil.UsageError(cmd, "You may not pass negative labels in %q", cfg.Labels)
}
label = valid
}
nodeSelector := map[string]string{}
if len(cfg.Selector) > 0 {
valid, remove, err := app.LabelsFromSpec(strings.Split(cfg.Selector, ","))
if err != nil {
return err
}
if len(remove) > 0 {
return cmdutil.UsageError(cmd, "You may not pass negative labels in selector %q", cfg.Selector)
}
nodeSelector = valid
}
image := cfg.ImageTemplate.ExpandOrDie(cfg.Type)
namespace, _, err := f.OpenShiftClientConfig.Namespace()
if err != nil {
return fmt.Errorf("error getting client: %v", err)
}
_, kClient, err := f.Clients()
if err != nil {
return fmt.Errorf("error getting client: %v", err)
}
_, output, err := cmdutil.PrinterForCommand(cmd)
if err != nil {
return fmt.Errorf("unable to configure printer: %v", err)
}
generate := output
if !generate {
_, err = kClient.Services(namespace).Get(name)
if err != nil {
if !errors.IsNotFound(err) {
return fmt.Errorf("can't check for existing docker-registry %q: %v", name, err)
}
generate = true
}
}
if generate {
if cfg.DryRun && !output {
return fmt.Errorf("docker-registry %q does not exist (no service).", name)
}
// create new registry
if len(cfg.Credentials) == 0 {
return fmt.Errorf("registry does not exist; you must specify a .kubeconfig file path containing credentials for connecting the registry to the master with --credentials")
}
clientConfigLoadingRules := &kclientcmd.ClientConfigLoadingRules{ExplicitPath: cfg.Credentials}
credentials, err := clientConfigLoadingRules.Load()
if err != nil {
return fmt.Errorf("registry does not exist; the provided credentials %q could not be loaded: %v", cfg.Credentials, err)
}
config, err := kclientcmd.NewDefaultClientConfig(*credentials, &kclientcmd.ConfigOverrides{}).ClientConfig()
if err != nil {
return fmt.Errorf("registry does not exist; the provided credentials %q could not be used: %v", cfg.Credentials, err)
}
if err := kclient.LoadTLSFiles(config); err != nil {
return fmt.Errorf("registry does not exist; the provided credentials %q could not load certificate info: %v", cfg.Credentials, err)
}
insecure := "false"
if config.Insecure {
insecure = "true"
} else {
if len(config.KeyData) == 0 || len(config.CertData) == 0 {
return fmt.Errorf("registry does not exist; the provided credentials %q are missing the client certificate and/or key", cfg.Credentials)
}
}
env := app.Environment{
"OPENSHIFT_MASTER": config.Host,
"OPENSHIFT_CA_DATA": string(config.CAData),
"OPENSHIFT_KEY_DATA": string(config.KeyData),
"OPENSHIFT_CERT_DATA": string(config.CertData),
"OPENSHIFT_INSECURE": insecure,
}
mountHost := len(cfg.HostMount) > 0
podTemplate := &kapi.PodTemplateSpec{
ObjectMeta: kapi.ObjectMeta{Labels: label},
Spec: kapi.PodSpec{
ServiceAccountName: cfg.ServiceAccount,
NodeSelector: nodeSelector,
Containers: []kapi.Container{
{
Name: "registry",
Image: image,
Ports: ports,
Env: env.List(),
VolumeMounts: []kapi.VolumeMount{
{
Name: "registry-storage",
MountPath: cfg.Volume,
},
},
SecurityContext: &kapi.SecurityContext{
Privileged: &mountHost,
},
// TODO reenable the liveness probe when we no longer support the v1 registry.
/*
LivenessProbe: &kapi.Probe{
InitialDelaySeconds: 3,
TimeoutSeconds: 5,
Handler: kapi.Handler{
HTTPGet: &kapi.HTTPGetAction{
Path: "/healthz",
Port: util.NewIntOrStringFromInt(5000),
},
},
},
*/
},
},
Volumes: []kapi.Volume{
{
Name: "registry-storage",
VolumeSource: kapi.VolumeSource{},
},
},
},
}
if mountHost {
podTemplate.Spec.Volumes[0].HostPath = &kapi.HostPathVolumeSource{Path: cfg.HostMount}
} else {
podTemplate.Spec.Volumes[0].EmptyDir = &kapi.EmptyDirVolumeSource{}
}
objects := []runtime.Object{
&dapi.DeploymentConfig{
ObjectMeta: kapi.ObjectMeta{
Name: name,
Labels: label,
},
Triggers: []dapi.DeploymentTriggerPolicy{
{Type: dapi.DeploymentTriggerOnConfigChange},
},
Template: dapi.DeploymentTemplate{
ControllerTemplate: kapi.ReplicationControllerSpec{
Replicas: cfg.Replicas,
Selector: label,
Template: podTemplate,
},
},
},
}
objects = app.AddServices(objects, true)
// TODO: label all created objects with the same label
list := &kapi.List{Items: objects}
if output {
if err := f.PrintObject(cmd, list, out); err != nil {
return fmt.Errorf("unable to print object: %v", err)
}
return nil
}
mapper, typer := f.Factory.Object()
bulk := configcmd.Bulk{
Mapper: mapper,
Typer: typer,
RESTClientFactory: f.Factory.RESTClient,
After: configcmd.NewPrintNameOrErrorAfter(out, os.Stderr),
}
if errs := bulk.Create(list, namespace); len(errs) != 0 {
return errExit
}
return nil
}
fmt.Fprintf(out, "Docker registry %q service exists\n", name)
return nil
}