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certs.go
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certs.go
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/*
Copyright 2022 The KubeSphere Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package registry
import (
"crypto/x509"
"fmt"
"net"
"path/filepath"
"strings"
"github.com/pkg/errors"
"k8s.io/client-go/util/cert"
certutil "k8s.io/client-go/util/cert"
netutils "k8s.io/utils/net"
"github.com/kubesphere/kubekey/v3/cmd/kk/pkg/common"
"github.com/kubesphere/kubekey/v3/cmd/kk/pkg/core/connector"
"github.com/kubesphere/kubekey/v3/cmd/kk/pkg/utils/certs"
)
const (
RegistryCertificateBaseName = "dockerhub.kubekey.local"
LocalCertsDir = "localCertsDir"
CertsFileList = "certsFileList"
)
// KubekeyCertRegistryCA is the definition of the root CA used by the hosted etcd server.
func KubekeyCertRegistryCA() *certs.KubekeyCert {
return &certs.KubekeyCert{
Name: "registry-ca",
LongName: "self-signed CA to provision identities for registry",
BaseName: "ca",
Config: certs.CertConfig{
Config: certutil.Config{
CommonName: "registry-ca",
},
},
}
}
// KubekeyCertRegistryServer is the definition of the cert for etcd admin.
func KubekeyCertRegistryServer(baseName string, altNames *certutil.AltNames) *certs.KubekeyCert {
return &certs.KubekeyCert{
Name: "registry-server",
LongName: "certificate for registry server",
BaseName: baseName,
CAName: "registry-ca",
Config: certs.CertConfig{
Config: certutil.Config{
Usages: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth, x509.ExtKeyUsageClientAuth},
AltNames: *altNames,
CommonName: baseName,
},
},
}
}
type FetchCerts struct {
common.KubeAction
}
func (f *FetchCerts) Execute(runtime connector.Runtime) error {
src := "/etc/ssl/registry/ssl"
dst := fmt.Sprintf("%s/pki/registry", runtime.GetWorkDir())
certs, err := runtime.GetRunner().SudoCmd("ls /etc/ssl/registry/ssl/ | grep .pem", false)
if err != nil {
return nil
}
certsList := strings.Split(certs, "\r\n")
if len(certsList) > 0 {
for _, cert := range certsList {
if err := runtime.GetRunner().Fetch(filepath.Join(dst, cert), filepath.Join(src, cert)); err != nil {
return errors.Wrap(err, fmt.Sprintf("Fetch %s failed", filepath.Join(src, cert)))
}
}
}
return nil
}
type GenerateCerts struct {
common.KubeAction
}
func (g *GenerateCerts) Execute(runtime connector.Runtime) error {
pkiPath := fmt.Sprintf("%s/pki/registry", runtime.GetWorkDir())
var altName cert.AltNames
dnsList := []string{"localhost", g.KubeConf.Cluster.Registry.GetHost()}
ipList := []net.IP{net.IPv4(127, 0, 0, 1), net.IPv6loopback}
for _, h := range runtime.GetHostsByRole(common.Registry) {
dnsList = append(dnsList, h.GetName())
ipList = append(ipList, netutils.ParseIPSloppy(h.GetInternalIPv4Address()))
}
altName.DNSNames = dnsList
altName.IPs = ipList
files := []string{"ca.pem", "ca-key.pem", fmt.Sprintf("%s.pem", g.KubeConf.Cluster.Registry.GetHost()), fmt.Sprintf("%s-key.pem", g.KubeConf.Cluster.Registry.GetHost())}
// CA
certsList := []*certs.KubekeyCert{KubekeyCertRegistryCA()}
// Certs
certsList = append(certsList, KubekeyCertRegistryServer(g.KubeConf.Cluster.Registry.GetHost(), &altName))
var lastCACert *certs.KubekeyCert
for _, c := range certsList {
if c.CAName == "" {
err := certs.GenerateCA(c, pkiPath, g.KubeConf)
if err != nil {
return err
}
lastCACert = c
} else {
err := certs.GenerateCerts(c, lastCACert, pkiPath, g.KubeConf)
if err != nil {
return err
}
}
}
g.ModuleCache.Set(LocalCertsDir, pkiPath)
g.ModuleCache.Set(CertsFileList, files)
return nil
}