kubernetes
/
kops
mirror of https://github.com/kubernetes/kops.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #3679 from justinsb/support_api_aggregation 

Automatic merge from submit-queue.

Initial aggregation work

Create the keypairs, which are supposed to be signed by a different CA.
    
Set the `--requestheader-...` flags on apiserver.
    
Fix #3152
Fix #2691
This commit is contained in:
Kubernetes Submit Queue 2017-10-24 12:08:27 -07:00 committed by GitHub
parent f3feadb011 a879521ba3
commit 8df13bd468
19 changed files with 351 additions and 63 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
nodeup/pkg/model/context.go
View File

@ -116,7 +116,7 @@ func (c *NodeupModelContext) CNIConfDir() string {
// buildPKIKubeconfig generates a kubeconfig
func (c *NodeupModelContext) buildPKIKubeconfig(id string) (string, error) {
caCertificate, err := c.KeyStore.Cert(fi.CertificateId_CA, false)
caCertificate, err := c.KeyStore.FindCert(fi.CertificateId_CA)
if err != nil {
return "", fmt.Errorf("error fetching CA certificate from keystore: %v", err)
}

17
nodeup/pkg/model/kube_apiserver.go
View File

@ -184,12 +184,25 @@ func (b *KubeAPIServerBuilder) buildPod() (*v1.Pod, error) {
}
if b.IsKubernetesGTE("1.7") {
certPath := filepath.Join(b.PathSrvKubernetes(), "proxy-client.cert")
certPath := filepath.Join(b.PathSrvKubernetes(), "apiserver-aggregator.cert")
kubeAPIServer.ProxyClientCertFile = &certPath
keyPath := filepath.Join(b.PathSrvKubernetes(), "proxy-client.key")
keyPath := filepath.Join(b.PathSrvKubernetes(), "apiserver-aggregator.key")
kubeAPIServer.ProxyClientKeyFile = &keyPath
}
// APIServer aggregation options
if b.IsKubernetesGTE("1.7") {
cert, err := b.KeyStore.FindCert("apiserver-aggregator-ca")
if err != nil {
return nil, fmt.Errorf("apiserver aggregator CA cert lookup failed: %v", err.Error())
}
if cert != nil {
certPath := filepath.Join(b.PathSrvKubernetes(), "apiserver-aggregator-ca.cert")
kubeAPIServer.RequestheaderClientCAFile = certPath
}
}
// build the kube-apiserver flags for the service
flags, err := flagbuilder.BuildFlagsList(b.Cluster.Spec.KubeAPIServer)
if err != nil {

68
nodeup/pkg/model/secrets.go
View File

@ -21,6 +21,7 @@ import (
"path/filepath"
"strings"
"github.com/golang/glog"
"k8s.io/kops/upup/pkg/fi"
"k8s.io/kops/upup/pkg/fi/nodeup/nodetasks"
)
@ -117,7 +118,7 @@ func (b *SecretBuilder) Build(c *fi.ModelBuilderContext) error {
}
if b.IsKubernetesGTE("1.7") {
// TODO: Remove - we use the apiserver-aggregator keypair instead (which is signed by a different CA)
cert, err := b.KeyStore.Cert("apiserver-proxy-client", false)
if err != nil {
return fmt.Errorf("apiserver proxy client cert lookup failed: %v", err.Error())
@ -153,6 +154,22 @@ func (b *SecretBuilder) Build(c *fi.ModelBuilderContext) error {
c.AddTask(t)
}
if b.IsKubernetesGTE("1.7") {
if err := b.writeCertificate(c, "apiserver-aggregator"); err != nil {
return err
}
if err := b.writePrivateKey(c, "apiserver-aggregator"); err != nil {
return err
}
}
if b.IsKubernetesGTE("1.7") {
if err := b.writeCertificate(c, "apiserver-aggregator-ca"); err != nil {
return err
}
}
if b.SecretStore != nil {
key := "kube"
token, err := b.SecretStore.FindSecret(key)
@ -200,6 +217,55 @@ func (b *SecretBuilder) Build(c *fi.ModelBuilderContext) error {
return nil
}
// writeCertificate writes the specified certificate to the local filesystem, under PathSrvKubernetes()
func (b *SecretBuilder) writeCertificate(c *fi.ModelBuilderContext, id string) error {
cert, err := b.KeyStore.FindCert(id)
if err != nil {
return fmt.Errorf("cert lookup failed for %q: %v", id, err)
}
if cert != nil {
serialized, err := cert.AsString()
if err != nil {
return err
}
t := &nodetasks.File{
Path: filepath.Join(b.PathSrvKubernetes(), id+".cert"),
Contents: fi.NewStringResource(serialized),
Type: nodetasks.FileType_File,
}
c.AddTask(t)
} else {
// TODO: Make this an error?
glog.Warningf("certificate %q not found", id)
}
return nil
}
// writePrivateKey writes the specified private key to the local filesystem, under PathSrvKubernetes()
func (b *SecretBuilder) writePrivateKey(c *fi.ModelBuilderContext, id string) error {
key, err := b.KeyStore.FindPrivateKey(id)
if err != nil {
return fmt.Errorf("private key lookup failed for %q: %v", id, err)
}
serialized, err := key.AsString()
if err != nil {
return err
}
t := &nodetasks.File{
Path: filepath.Join(b.PathSrvKubernetes(), id+".key"),
Contents: fi.NewStringResource(serialized),
Type: nodetasks.FileType_File,
}
c.AddTask(t)
return nil
}
// allTokens returns a map of all tokens
func (b *SecretBuilder) allTokens() (map[string]string, error) {
tokens := make(map[string]string)

11
pkg/apis/kops/componentconfig.go
View File

@ -258,6 +258,17 @@ type KubeAPIServerConfig struct {
AuthorizationRBACSuperUser *string `json:"authorizationRbacSuperUser,omitempty" flag:"authorization-rbac-super-user"`
// ExperimentalEncryptionProviderConfig enables encryption at rest for secrets.
ExperimentalEncryptionProviderConfig *string `json:"experimentalEncryptionProviderConfig,omitempty" flag:"experimental-encryption-provider-config"`
// List of request headers to inspect for usernames. X-Remote-User is common.
RequestheaderUsernameHeaders []string `json:"requestheaderUsernameHeaders,omitempty" flag:"requestheader-username-headers"`
// List of request headers to inspect for groups. X-Remote-Group is suggested.
RequestheaderGroupHeaders []string `json:"requestheaderGroupHeaders,omitempty" flag:"requestheader-group-headers"`
// List of request header prefixes to inspect. X-Remote-Extra- is suggested.
RequestheaderExtraHeaderPrefixes []string `json:"requestheaderExtraHeaderPrefixes,omitempty" flag:"requestheader-extra-headers-prefix"`
//Root certificate bundle to use to verify client certificates on incoming requests before trusting usernames in headers specified by --requestheader-username-headers
RequestheaderClientCAFile string `json:"requestheaderClientCAFile,omitempty" flag:"requestheader-client-ca-file"`
// List of client certificate common names to allow to provide usernames in headers specified by --requestheader-username-headers. If empty, any client certificate validated by the authorities in --requestheader-client-ca-file is allowed.
RequestheaderAllowedNames []string `json:"requestheaderAllowedNames,omitempty" flag:"requestheader-allowed-names"`
}
// KubeControllerManagerConfig is the configuration for the controller

11
pkg/apis/kops/v1alpha1/componentconfig.go
View File

@ -258,6 +258,17 @@ type KubeAPIServerConfig struct {
AuthorizationRBACSuperUser *string `json:"authorizationRbacSuperUser,omitempty" flag:"authorization-rbac-super-user"`
// ExperimentalEncryptionProviderConfig enables encryption at rest for secrets.
ExperimentalEncryptionProviderConfig *string `json:"experimentalEncryptionProviderConfig,omitempty" flag:"experimental-encryption-provider-config"`
// List of request headers to inspect for usernames. X-Remote-User is common.
RequestheaderUsernameHeaders []string `json:"requestheaderUsernameHeaders,omitempty" flag:"requestheader-username-headers"`
// List of request headers to inspect for groups. X-Remote-Group is suggested.
RequestheaderGroupHeaders []string `json:"requestheaderGroupHeaders,omitempty" flag:"requestheader-group-headers"`
// List of request header prefixes to inspect. X-Remote-Extra- is suggested.
RequestheaderExtraHeaderPrefixes []string `json:"requestheaderExtraHeaderPrefixes,omitempty" flag:"requestheader-extra-headers-prefix"`
//Root certificate bundle to use to verify client certificates on incoming requests before trusting usernames in headers specified by --requestheader-username-headers
RequestheaderClientCAFile string `json:"requestheaderClientCAFile,omitempty" flag:"requestheader-client-ca-file"`
// List of client certificate common names to allow to provide usernames in headers specified by --requestheader-username-headers. If empty, any client certificate validated by the authorities in --requestheader-client-ca-file is allowed.
RequestheaderAllowedNames []string `json:"requestheaderAllowedNames,omitempty" flag:"requestheader-allowed-names"`
}
// KubeControllerManagerConfig is the configuration for the controller

10
pkg/apis/kops/v1alpha1/zz_generated.conversion.go
View File

@ -1816,6 +1816,11 @@ func autoConvert_v1alpha1_KubeAPIServerConfig_To_kops_KubeAPIServerConfig(in *Ku
out.AuthorizationMode = in.AuthorizationMode
out.AuthorizationRBACSuperUser = in.AuthorizationRBACSuperUser
out.ExperimentalEncryptionProviderConfig = in.ExperimentalEncryptionProviderConfig
out.RequestheaderUsernameHeaders = in.RequestheaderUsernameHeaders
out.RequestheaderGroupHeaders = in.RequestheaderGroupHeaders
out.RequestheaderExtraHeaderPrefixes = in.RequestheaderExtraHeaderPrefixes
out.RequestheaderClientCAFile = in.RequestheaderClientCAFile
out.RequestheaderAllowedNames = in.RequestheaderAllowedNames
return nil
}
@ -1868,6 +1873,11 @@ func autoConvert_kops_KubeAPIServerConfig_To_v1alpha1_KubeAPIServerConfig(in *ko
out.AuthorizationMode = in.AuthorizationMode
out.AuthorizationRBACSuperUser = in.AuthorizationRBACSuperUser
out.ExperimentalEncryptionProviderConfig = in.ExperimentalEncryptionProviderConfig
out.RequestheaderUsernameHeaders = in.RequestheaderUsernameHeaders
out.RequestheaderGroupHeaders = in.RequestheaderGroupHeaders
out.RequestheaderExtraHeaderPrefixes = in.RequestheaderExtraHeaderPrefixes
out.RequestheaderClientCAFile = in.RequestheaderClientCAFile
out.RequestheaderAllowedNames = in.RequestheaderAllowedNames
return nil
}

20
pkg/apis/kops/v1alpha1/zz_generated.deepcopy.go
View File

@ -2035,6 +2035,26 @@ func (in *KubeAPIServerConfig) DeepCopyInto(out *KubeAPIServerConfig) {
**out = **in
}
}
if in.RequestheaderUsernameHeaders != nil {
in, out := &in.RequestheaderUsernameHeaders, &out.RequestheaderUsernameHeaders
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.RequestheaderGroupHeaders != nil {
in, out := &in.RequestheaderGroupHeaders, &out.RequestheaderGroupHeaders
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.RequestheaderExtraHeaderPrefixes != nil {
in, out := &in.RequestheaderExtraHeaderPrefixes, &out.RequestheaderExtraHeaderPrefixes
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.RequestheaderAllowedNames != nil {
in, out := &in.RequestheaderAllowedNames, &out.RequestheaderAllowedNames
*out = make([]string, len(*in))
copy(*out, *in)
}
return
}

11
pkg/apis/kops/v1alpha2/componentconfig.go
View File

@ -258,6 +258,17 @@ type KubeAPIServerConfig struct {
AuthorizationRBACSuperUser *string `json:"authorizationRbacSuperUser,omitempty" flag:"authorization-rbac-super-user"`
// ExperimentalEncryptionProviderConfig enables encryption at rest for secrets.
ExperimentalEncryptionProviderConfig *string `json:"experimentalEncryptionProviderConfig,omitempty" flag:"experimental-encryption-provider-config"`
// List of request headers to inspect for usernames. X-Remote-User is common.
RequestheaderUsernameHeaders []string `json:"requestheaderUsernameHeaders,omitempty" flag:"requestheader-username-headers"`
// List of request headers to inspect for groups. X-Remote-Group is suggested.
RequestheaderGroupHeaders []string `json:"requestheaderGroupHeaders,omitempty" flag:"requestheader-group-headers"`
// List of request header prefixes to inspect. X-Remote-Extra- is suggested.
RequestheaderExtraHeaderPrefixes []string `json:"requestheaderExtraHeaderPrefixes,omitempty" flag:"requestheader-extra-headers-prefix"`
//Root certificate bundle to use to verify client certificates on incoming requests before trusting usernames in headers specified by --requestheader-username-headers
RequestheaderClientCAFile string `json:"requestheaderClientCAFile,omitempty" flag:"requestheader-client-ca-file"`
// List of client certificate common names to allow to provide usernames in headers specified by --requestheader-username-headers. If empty, any client certificate validated by the authorities in --requestheader-client-ca-file is allowed.
RequestheaderAllowedNames []string `json:"requestheaderAllowedNames,omitempty" flag:"requestheader-allowed-names"`
}
// KubeControllerManagerConfig is the configuration for the controller

10
pkg/apis/kops/v1alpha2/zz_generated.conversion.go
View File

@ -2078,6 +2078,11 @@ func autoConvert_v1alpha2_KubeAPIServerConfig_To_kops_KubeAPIServerConfig(in *Ku
out.AuthorizationMode = in.AuthorizationMode
out.AuthorizationRBACSuperUser = in.AuthorizationRBACSuperUser
out.ExperimentalEncryptionProviderConfig = in.ExperimentalEncryptionProviderConfig
out.RequestheaderUsernameHeaders = in.RequestheaderUsernameHeaders
out.RequestheaderGroupHeaders = in.RequestheaderGroupHeaders
out.RequestheaderExtraHeaderPrefixes = in.RequestheaderExtraHeaderPrefixes
out.RequestheaderClientCAFile = in.RequestheaderClientCAFile
out.RequestheaderAllowedNames = in.RequestheaderAllowedNames
return nil
}
@ -2130,6 +2135,11 @@ func autoConvert_kops_KubeAPIServerConfig_To_v1alpha2_KubeAPIServerConfig(in *ko
out.AuthorizationMode = in.AuthorizationMode
out.AuthorizationRBACSuperUser = in.AuthorizationRBACSuperUser
out.ExperimentalEncryptionProviderConfig = in.ExperimentalEncryptionProviderConfig
out.RequestheaderUsernameHeaders = in.RequestheaderUsernameHeaders
out.RequestheaderGroupHeaders = in.RequestheaderGroupHeaders
out.RequestheaderExtraHeaderPrefixes = in.RequestheaderExtraHeaderPrefixes
out.RequestheaderClientCAFile = in.RequestheaderClientCAFile
out.RequestheaderAllowedNames = in.RequestheaderAllowedNames
return nil
}

20
pkg/apis/kops/v1alpha2/zz_generated.deepcopy.go
View File

@ -2161,6 +2161,26 @@ func (in *KubeAPIServerConfig) DeepCopyInto(out *KubeAPIServerConfig) {
**out = **in
}
}
if in.RequestheaderUsernameHeaders != nil {
in, out := &in.RequestheaderUsernameHeaders, &out.RequestheaderUsernameHeaders
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.RequestheaderGroupHeaders != nil {
in, out := &in.RequestheaderGroupHeaders, &out.RequestheaderGroupHeaders
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.RequestheaderExtraHeaderPrefixes != nil {
in, out := &in.RequestheaderExtraHeaderPrefixes, &out.RequestheaderExtraHeaderPrefixes
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.RequestheaderAllowedNames != nil {
in, out := &in.RequestheaderAllowedNames, &out.RequestheaderAllowedNames
*out = make([]string, len(*in))
copy(*out, *in)
}
return
}

20
pkg/apis/kops/zz_generated.deepcopy.go
View File

@ -2380,6 +2380,26 @@ func (in *KubeAPIServerConfig) DeepCopyInto(out *KubeAPIServerConfig) {
**out = **in
}
}
if in.RequestheaderUsernameHeaders != nil {
in, out := &in.RequestheaderUsernameHeaders, &out.RequestheaderUsernameHeaders
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.RequestheaderGroupHeaders != nil {
in, out := &in.RequestheaderGroupHeaders, &out.RequestheaderGroupHeaders
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.RequestheaderExtraHeaderPrefixes != nil {
in, out := &in.RequestheaderExtraHeaderPrefixes, &out.RequestheaderExtraHeaderPrefixes
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.RequestheaderAllowedNames != nil {
in, out := &in.RequestheaderAllowedNames, &out.RequestheaderAllowedNames
*out = make([]string, len(*in))
copy(*out, *in)
}
return
}

16
pkg/model/components/apiserver.go
View File

@ -94,6 +94,10 @@ func (b *KubeAPIServerOptionsBuilder) BuildOptions(o interface{}) error {
clusterSpec.KubeAPIServer.AuthorizationMode = fi.String("RBAC")
}
if err := b.configureAggregation(clusterSpec); err != nil {
return nil
}
image, err := Image("kube-apiserver", clusterSpec, b.AssetBuilder)
if err != nil {
return err
@ -247,3 +251,15 @@ func (b *KubeAPIServerOptionsBuilder) buildAPIServerCount(clusterSpec *kops.Clus
return count
}
// configureAggregation sets up the aggregation options
func (b *KubeAPIServerOptionsBuilder) configureAggregation(clusterSpec *kops.ClusterSpec) error {
if b.IsKubernetesGTE("1.7") {
clusterSpec.KubeAPIServer.RequestheaderAllowedNames = []string{"aggregator"}
clusterSpec.KubeAPIServer.RequestheaderExtraHeaderPrefixes = []string{"X-Remote-Extra-"}
clusterSpec.KubeAPIServer.RequestheaderGroupHeaders = []string{"X-Remote-Group"}
clusterSpec.KubeAPIServer.RequestheaderUsernameHeaders = []string{"X-Remote-User"}
}
return nil
}

43
pkg/model/pki.go
View File

@ -35,13 +35,25 @@ var _ fi.ModelBuilder = &PKIModelBuilder{}
// Build is responsible for generating the various pki assets
func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
// TODO: Only create the CA via this task
defaultCA := &fitasks.Keypair{
Name: fi.String(fi.CertificateId_CA),
Lifecycle: b.Lifecycle,
Subject: "cn=kubernetes",
Type: "ca",
}
c.AddTask(defaultCA)
{
t := &fitasks.Keypair{
Name: fi.String("kubelet"),
Lifecycle: b.Lifecycle,
Subject: "o=" + user.NodesGroup + ",cn=kubelet",
Type: "client",
Signer: defaultCA,
}
c.AddTask(t)
}
@ -54,6 +66,7 @@ func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
Lifecycle: b.Lifecycle,
Subject: "cn=kubelet-api",
Type: "client",
Signer: defaultCA,
})
}
{
@ -62,6 +75,7 @@ func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
Lifecycle: b.Lifecycle,
Subject: "cn=" + user.KubeScheduler,
Type: "client",
Signer: defaultCA,
}
c.AddTask(t)
}
@ -72,6 +86,7 @@ func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
Lifecycle: b.Lifecycle,
Subject: "cn=" + user.KubeProxy,
Type: "client",
Signer: defaultCA,
}
c.AddTask(t)
}
@ -82,6 +97,7 @@ func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
Lifecycle: b.Lifecycle,
Subject: "cn=" + user.KubeControllerManager,
Type: "client",
Signer: defaultCA,
}
c.AddTask(t)
}
@ -101,6 +117,7 @@ func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
Name: fi.String("etcd"),
Subject: "cn=etcd",
Type: "server",
Signer: defaultCA,
})
}
{
@ -109,6 +126,7 @@ func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
Lifecycle: b.Lifecycle,
Subject: "cn=etcd-client",
Type: "client",
Signer: defaultCA,
})
}
}
@ -118,6 +136,7 @@ func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
Name: fi.String("kube-router"),
Subject: "cn=" + "system:kube-router",
Type: "client",
Signer: defaultCA,
}
c.AddTask(t)
}
@ -128,6 +147,7 @@ func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
Lifecycle: b.Lifecycle,
Subject: "o=" + user.SystemPrivilegedGroup + ",cn=kubecfg",
Type: "client",
Signer: defaultCA,
}
c.AddTask(t)
}
@ -138,16 +158,38 @@ func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
Lifecycle: b.Lifecycle,
Subject: "cn=apiserver-proxy-client",
Type: "client",
Signer: defaultCA,
}
c.AddTask(t)
}
{
aggregatorCA := &fitasks.Keypair{
Name: fi.String("apiserver-aggregator-ca"),
Lifecycle: b.Lifecycle,
Subject: "cn=apiserver-aggregator-ca",
Type: "ca",
}
c.AddTask(aggregatorCA)
aggregator := &fitasks.Keypair{
Name: fi.String("apiserver-aggregator"),
Lifecycle: b.Lifecycle,
// Must match RequestheaderAllowedNames
Subject: "cn=aggregator",
Type: "client",
Signer: aggregatorCA,
}
c.AddTask(aggregator)
}
{
t := &fitasks.Keypair{
Name: fi.String("kops"),
Lifecycle: b.Lifecycle,
Subject: "o=" + user.SystemPrivilegedGroup + ",cn=kops",
Type: "client",
Signer: defaultCA,
}
c.AddTask(t)
}
@ -183,6 +225,7 @@ func (b *PKIModelBuilder) Build(c *fi.ModelBuilderContext) error {
Subject: "cn=kubernetes-master",
Type: "server",
AlternateNames: alternateNames,
Signer: defaultCA,
}
c.AddTask(t)
}

2
pkg/pki/csr.go
View File

@ -85,7 +85,7 @@ func SignNewCertificate(privateKey *PrivateKey, template *x509.Certificate, sign
template.KeyUsage = x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment
}
if template.ExtKeyUsage == nil {
if template.ExtKeyUsage == nil && !template.IsCA {
template.ExtKeyUsage = []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth}
}
//c.SignatureAlgorithm = do we want to overrride?

4
upup/pkg/fi/ca.go
View File

@ -49,7 +49,7 @@ type Keystore interface {
// (if the certificate is found but not keypair, that is not an error: only the cert will be returned)
FindKeypair(name string) (*pki.Certificate, *pki.PrivateKey, error)
CreateKeypair(name string, template *x509.Certificate, privateKey *pki.PrivateKey) (*pki.Certificate, error)
CreateKeypair(signer string, name string, template *x509.Certificate, privateKey *pki.PrivateKey) (*pki.Certificate, error)
// StoreKeypair writes the keypair to the store
StoreKeypair(id string, cert *pki.Certificate, privateKey *pki.PrivateKey) error
@ -67,11 +67,13 @@ type CAStore interface {
Keystore
// Cert returns the primary specified certificate
// For createIfMissing=false, using FindCert is preferred
Cert(name string, createIfMissing bool) (*pki.Certificate, error)
// CertificatePool returns all active certificates with the specified id
CertificatePool(name string, createIfMissing bool) (*CertificatePool, error)
PrivateKey(name string, createIfMissing bool) (*pki.PrivateKey, error)
// FindCert returns the specified certificate, if it exists, or nil if not found
FindCert(name string) (*pki.Certificate, error)
FindPrivateKey(name string) (*pki.PrivateKey, error)

28
upup/pkg/fi/clientset_castore.go
View File

@ -43,7 +43,7 @@ type ClientsetCAStore struct {
clientset kopsinternalversion.KopsInterface
mutex sync.Mutex
cacheCaKeyset *keyset
cachedCaKeysets map[string]*keyset
}
var _ CAStore = &ClientsetCAStore{}
@ -53,40 +53,42 @@ func NewClientsetCAStore(clientset kopsinternalversion.KopsInterface, namespace
c := &ClientsetCAStore{
clientset: clientset,
namespace: namespace,
cachedCaKeysets: make(map[string]*keyset),
}
return c
}
// readCAKeypairs retrieves the CA keypair, generating a new keypair if not found
func (c *ClientsetCAStore) readCAKeypairs() (*keyset, error) {
func (c *ClientsetCAStore) readCAKeypairs(id string) (*keyset, error) {
c.mutex.Lock()
defer c.mutex.Unlock()
if c.cacheCaKeyset != nil {
return c.cacheCaKeyset, nil
cached := c.cachedCaKeysets[id]
if cached != nil {
return cached, nil
}
keyset, err := c.loadKeyset(CertificateId_CA)
keyset, err := c.loadKeyset(id)
if err != nil {
return nil, err
}
if keyset == nil {
keyset, err = c.generateCACertificate()
keyset, err = c.generateCACertificate(id)
if err != nil {
return nil, err
}
}
c.cacheCaKeyset = keyset
c.cachedCaKeysets[id] = keyset
return keyset, nil
}
// generateCACertificate creates and stores a CA keypair
// Should be called with the mutex held, to prevent concurrent creation of different keys
func (c *ClientsetCAStore) generateCACertificate() (*keyset, error) {
func (c *ClientsetCAStore) generateCACertificate(id string) (*keyset, error) {
template := BuildCAX509Template()
caRsaKey, err := rsa.GenerateKey(crypto_rand.Reader, 2048)
@ -104,7 +106,7 @@ func (c *ClientsetCAStore) generateCACertificate() (*keyset, error) {
return nil, err
}
return c.storeAndVerifyKeypair(CertificateId_CA, caCertificate, caPrivateKey)
return c.storeAndVerifyKeypair(id, caCertificate, caPrivateKey)
}
// keyset is a parsed Keyset
@ -310,12 +312,12 @@ func (c *ClientsetCAStore) List() ([]*KeystoreItem, error) {
}
// IssueCert implements CAStore::IssueCert
func (c *ClientsetCAStore) IssueCert(name string, serial *big.Int, privateKey *pki.PrivateKey, template *x509.Certificate) (*pki.Certificate, error) {
func (c *ClientsetCAStore) IssueCert(signer string, name string, serial *big.Int, privateKey *pki.PrivateKey, template *x509.Certificate) (*pki.Certificate, error) {
glog.Infof("Issuing new certificate: %q", name)
template.SerialNumber = serial
caKeyset, err := c.readCAKeypairs()
caKeyset, err := c.readCAKeypairs(signer)
if err != nil {
return nil, err
}
@ -416,10 +418,10 @@ func (c *ClientsetCAStore) PrivateKey(name string, createIfMissing bool) (*pki.P
}
// CreateKeypair implements CAStore::CreateKeypair
func (c *ClientsetCAStore) CreateKeypair(id string, template *x509.Certificate, privateKey *pki.PrivateKey) (*pki.Certificate, error) {
func (c *ClientsetCAStore) CreateKeypair(signer string, id string, template *x509.Certificate, privateKey *pki.PrivateKey) (*pki.Certificate, error) {
serial := c.buildSerial()
cert, err := c.IssueCert(id, serial, privateKey, template)
cert, err := c.IssueCert(signer, id, serial, privateKey, template)
if err != nil {
return nil, err
}

24
upup/pkg/fi/fitasks/keypair.go
View File

@ -31,6 +31,7 @@ import (
var wellKnownCertificateTypes = map[string]string{
"client": "ExtKeyUsageClientAuth,KeyUsageDigitalSignature",
"server": "ExtKeyUsageServerAuth,KeyUsageDigitalSignature,KeyUsageKeyEncipherment",
"ca": "CA,KeyUsageCRLSign,KeyUsageCertSign",
}
//go:generate fitask -type=Keypair
@ -41,6 +42,9 @@ type Keypair struct {
Type string `json:"type"`
AlternateNames []string `json:"alternateNames"`
AlternateNameTasks []fi.Task `json:"alternateNameTasks"`
// Signer is the keypair to use to sign, for when we want to use an alternative CA
Signer *Keypair
}
var _ fi.HasCheckExisting = &Keypair{}
@ -51,6 +55,12 @@ func (e *Keypair) CheckExisting(c *fi.Context) bool {
return true
}
var _ fi.CompareWithID = &Keypair{}
func (e *Keypair) CompareWithID() *string {
return &e.Subject
}
func (e *Keypair) Find(c *fi.Context) (*Keypair, error) {
name := fi.StringValue(e.Name)
if name == "" {
@ -84,6 +94,8 @@ func (e *Keypair) Find(c *fi.Context) (*Keypair, error) {
Type: buildTypeDescription(cert.Certificate),
}
actual.Signer = &Keypair{Subject: pkixNameToString(&cert.Certificate.Issuer)}
// Avoid spurious changes
actual.Lifecycle = e.Lifecycle
@ -133,7 +145,7 @@ func (e *Keypair) normalize(c *fi.Context) error {
return nil
}
func (s *Keypair) CheckChanges(a, e, changes *Keypair) error {
func (_ *Keypair) CheckChanges(a, e, changes *Keypair) error {
if a != nil {
if changes.Name != nil {
return fi.CannotChangeField("Name")
@ -184,7 +196,11 @@ func (_ *Keypair) Render(c *fi.Context, a, e, changes *Keypair) error {
}
}
cert, err = c.Keystore.CreateKeypair(name, template, privateKey)
signer := fi.CertificateId_CA
if e.Signer != nil {
signer = fi.StringValue(e.Signer.Name)
}
cert, err = c.Keystore.CreateKeypair(signer, name, template, privateKey)
if err != nil {
return err
}
@ -256,8 +272,10 @@ func buildCertificateTemplateForType(certificateType string) (*x509.Certificate,
return nil, fmt.Errorf("unrecognized certificate option: %v", t)
}
template.ExtKeyUsage = append(template.ExtKeyUsage, ku)
} else if t == "CA" {
template.IsCA = true
} else {
return nil, fmt.Errorf("unrecognized certificate option: %v", t)
return nil, fmt.Errorf("unrecognized certificate option: %q", t)
}
}

8
upup/pkg/fi/k8sapi/k8s_keystore.go
View File

@ -51,12 +51,12 @@ func NewKubernetesKeystore(client kubernetes.Interface, namespace string) fi.Key
return c
}
func (c *KubernetesKeystore) issueCert(id string, serial *big.Int, privateKey *pki.PrivateKey, template *x509.Certificate) (*pki.Certificate, error) {
func (c *KubernetesKeystore) issueCert(signer string, id string, serial *big.Int, privateKey *pki.PrivateKey, template *x509.Certificate) (*pki.Certificate, error) {
glog.Infof("Issuing new certificate: %q", id)
template.SerialNumber = serial
caCert, caKey, err := c.FindKeypair(fi.CertificateId_CA)
caCert, caKey, err := c.FindKeypair(signer)
if err != nil {
return nil, err
}
@ -107,11 +107,11 @@ func (c *KubernetesKeystore) FindKeypair(id string) (*pki.Certificate, *pki.Priv
return keypair.Certificate, keypair.PrivateKey, nil
}
func (c *KubernetesKeystore) CreateKeypair(id string, template *x509.Certificate, privateKey *pki.PrivateKey) (*pki.Certificate, error) {
func (c *KubernetesKeystore) CreateKeypair(signer string, id string, template *x509.Certificate, privateKey *pki.PrivateKey) (*pki.Certificate, error) {
t := time.Now().UnixNano()
serial := pki.BuildPKISerial(t)
cert, err := c.issueCert(id, serial, privateKey, template)
cert, err := c.issueCert(signer, id, serial, privateKey, template)
if err != nil {
return nil, err
}

63
upup/pkg/fi/vfs_castore.go
View File

@ -41,8 +41,12 @@ type VFSCAStore struct {
basedir vfs.Path
mutex sync.Mutex
cacheCaCertificates *certificates
cacheCaPrivateKeys *privateKeys
cachedCAs map[string]*cachedEntry
}
type cachedEntry struct {
certificates *certificates
privateKeys *privateKeys
}
var _ CAStore = &VFSCAStore{}
@ -50,6 +54,7 @@ var _ CAStore = &VFSCAStore{}
func NewVFSCAStore(basedir vfs.Path) CAStore {
c := &VFSCAStore{
basedir: basedir,
cachedCAs: make(map[string]*cachedEntry),
}
return c
@ -60,15 +65,16 @@ func (s *VFSCAStore) VFSPath() vfs.Path {
}
// Retrieves the CA keypair, generating a new keypair if not found
func (s *VFSCAStore) readCAKeypairs() (*certificates, *privateKeys, error) {
func (s *VFSCAStore) readCAKeypairs(id string) (*certificates, *privateKeys, error) {
s.mutex.Lock()
defer s.mutex.Unlock()
if s.cacheCaPrivateKeys != nil {
return s.cacheCaCertificates, s.cacheCaPrivateKeys, nil
cached := s.cachedCAs[id]
if cached != nil {
return cached.certificates, cached.privateKeys, nil
}
caCertificates, err := s.loadCertificates(s.buildCertificatePoolPath(CertificateId_CA))
caCertificates, err := s.loadCertificates(s.buildCertificatePoolPath(id))
if err != nil {
return nil, nil, err
}
@ -76,7 +82,7 @@ func (s *VFSCAStore) readCAKeypairs() (*certificates, *privateKeys, error) {
var caPrivateKeys *privateKeys
if caCertificates != nil {
caPrivateKeys, err = s.loadPrivateKeys(s.buildPrivateKeyPoolPath(CertificateId_CA))
caPrivateKeys, err = s.loadPrivateKeys(s.buildPrivateKeyPoolPath(id))
if err != nil {
return nil, nil, err
}
@ -88,16 +94,16 @@ func (s *VFSCAStore) readCAKeypairs() (*certificates, *privateKeys, error) {
}
if caPrivateKeys == nil {
caCertificates, caPrivateKeys, err = s.generateCACertificate()
caCertificates, caPrivateKeys, err = s.generateCACertificate(id)
if err != nil {
return nil, nil, err
}
}
s.cacheCaCertificates = caCertificates
s.cacheCaPrivateKeys = caPrivateKeys
cached = &cachedEntry{certificates: caCertificates, privateKeys: caPrivateKeys}
s.cachedCAs[id] = cached
return s.cacheCaCertificates, s.cacheCaPrivateKeys, nil
return cached.certificates, cached.privateKeys, nil
}
func BuildCAX509Template() *x509.Certificate {
@ -117,7 +123,7 @@ func BuildCAX509Template() *x509.Certificate {
// Creates and stores CA keypair
// Should be called with the mutex held, to prevent concurrent creation of different keys
func (c *VFSCAStore) generateCACertificate() (*certificates, *privateKeys, error) {
func (c *VFSCAStore) generateCACertificate(id string) (*certificates, *privateKeys, error) {
template := BuildCAX509Template()
caRsaKey, err := rsa.GenerateKey(crypto_rand.Reader, 2048)
@ -135,14 +141,14 @@ func (c *VFSCAStore) generateCACertificate() (*certificates, *privateKeys, error
t := time.Now().UnixNano()
serial := pki.BuildPKISerial(t)
keyPath := c.buildPrivateKeyPath(CertificateId_CA, serial)
keyPath := c.buildPrivateKeyPath(id, serial)
err = c.storePrivateKey(caPrivateKey, keyPath)
if err != nil {
return nil, nil, err
}
// Make double-sure it round-trips
privateKeys, err := c.loadPrivateKeys(c.buildPrivateKeyPoolPath(CertificateId_CA))
privateKeys, err := c.loadPrivateKeys(c.buildPrivateKeyPoolPath(id))
if err != nil {
return nil, nil, err
}
@ -150,14 +156,14 @@ func (c *VFSCAStore) generateCACertificate() (*certificates, *privateKeys, error
return nil, nil, fmt.Errorf("failed to round-trip CA private key")
}
certPath := c.buildCertificatePath(CertificateId_CA, serial)
certPath := c.buildCertificatePath(id, serial)
err = c.storeCertificate(caCertificate, certPath)
if err != nil {
return nil, nil, err
}
// Make double-sure it round-trips
certificates, err := c.loadCertificates(c.buildCertificatePoolPath(CertificateId_CA))
certificates, err := c.loadCertificates(c.buildCertificatePoolPath(id))
if err != nil {
return nil, nil, err
}
@ -414,25 +420,34 @@ func (c *VFSCAStore) MirrorTo(basedir vfs.Path) error {
return vfs.CopyTree(c.basedir, basedir)
}
func (c *VFSCAStore) IssueCert(id string, serial *big.Int, privateKey *pki.PrivateKey, template *x509.Certificate) (*pki.Certificate, error) {
func (c *VFSCAStore) IssueCert(signer string, id string, serial *big.Int, privateKey *pki.PrivateKey, template *x509.Certificate) (*pki.Certificate, error) {
glog.Infof("Issuing new certificate: %q", id)
template.SerialNumber = serial
caCertificates, caPrivateKeys, err := c.readCAKeypairs()
var cert *pki.Certificate
if template.IsCA {
var err error
cert, err = pki.SignNewCertificate(privateKey, template, nil, nil)
if err != nil {
return nil, err
}
} else {
caCertificates, caPrivateKeys, err := c.readCAKeypairs(signer)
if err != nil {
return nil, err
}
if caPrivateKeys == nil || caPrivateKeys.Primary() == nil {
return nil, fmt.Errorf("ca.key was not found; cannot issue certificates")
return nil, fmt.Errorf("ca key for %q was not found; cannot issue certificates", signer)
}
cert, err := pki.SignNewCertificate(privateKey, template, caCertificates.Primary().Certificate, caPrivateKeys.Primary())
cert, err = pki.SignNewCertificate(privateKey, template, caCertificates.Primary().Certificate, caPrivateKeys.Primary())
if err != nil {
return nil, err
}
}
err = c.StoreKeypair(id, cert, privateKey)
err := c.StoreKeypair(id, cert, privateKey)
if err != nil {
return nil, err
}
@ -557,7 +572,7 @@ func (c *VFSCAStore) loadOnePrivateKey(p vfs.Path) (*pki.PrivateKey, error) {
func (c *VFSCAStore) FindPrivateKey(id string) (*pki.PrivateKey, error) {
var keys *privateKeys
if id == CertificateId_CA {
_, caPrivateKeys, err := c.readCAKeypairs()
_, caPrivateKeys, err := c.readCAKeypairs(id)
if err != nil {
return nil, err
}
@ -592,10 +607,10 @@ func (c *VFSCAStore) PrivateKey(id string, createIfMissing bool) (*pki.PrivateKe
}
func (c *VFSCAStore) CreateKeypair(id string, template *x509.Certificate, privateKey *pki.PrivateKey) (*pki.Certificate, error) {
func (c *VFSCAStore) CreateKeypair(signer string, id string, template *x509.Certificate, privateKey *pki.PrivateKey) (*pki.Certificate, error) {
serial := c.buildSerial()
cert, err := c.IssueCert(id, serial, privateKey, template)
cert, err := c.IssueCert(signer, id, serial, privateKey, template)
if err != nil {
return nil, err
}