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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,169 @@ | ||
| /* | ||
| Copyright 2023 The OpenYurt 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 certificate | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "github.com/openyurtio/openyurt/pkg/yurthub/util" | ||
| "net/url" | ||
| "strings" | ||
|
|
||
| "github.com/spf13/cobra" | ||
| flag "github.com/spf13/pflag" | ||
| "k8s.io/klog/v2" | ||
|
|
||
| "github.com/openyurtio/openyurt/pkg/projectinfo" | ||
| yurtconstants "github.com/openyurtio/openyurt/pkg/yurtadm/constants" | ||
| "github.com/openyurtio/openyurt/pkg/yurtadm/util/yurthub" | ||
| ) | ||
|
|
||
| type certificateOptions struct { | ||
| token string | ||
| caCertHashes []string | ||
| unsafeSkipCAVerification bool | ||
| serverAddr string | ||
| yurthubServer string | ||
| } | ||
|
|
||
| // newCertificateOptions returns a struct ready for being used for creating cmd renew flags. | ||
| func newCertificateOptions() *certificateOptions { | ||
| return &certificateOptions{ | ||
| caCertHashes: make([]string, 0), | ||
| unsafeSkipCAVerification: true, | ||
| yurthubServer: yurtconstants.DefaultYurtHubServerAddr, | ||
| } | ||
| } | ||
|
|
||
| // NewCmdCertificate returns "yurtadm renew certificate" command. | ||
| func NewCmdCertificate() *cobra.Command { | ||
| o := newCertificateOptions() | ||
|
|
||
| certificateCmd := &cobra.Command{ | ||
| Use: "certificate", | ||
| Short: "Create bootstrap file for yurthub to update certificate", | ||
| RunE: func(certificateCmd *cobra.Command, args []string) error { | ||
| if err := o.validate(); err != nil { | ||
| klog.Fatalf("validate options: %v", err) | ||
| } | ||
|
|
||
| if exist, err := util.FileExists(yurtconstants.YurthubCaPath); err != nil { | ||
| klog.Infof("couldn't stat ca.crt file") | ||
| } else if exist { | ||
| ok, err := yurthub.CheckYurthubCertValid(yurtconstants.YurthubCaPath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if ok { | ||
| klog.Info("The certificate has not expired, stop update.") | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| us, err := parseRemoteServers(o.serverAddr) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // 1.create a temporary bootstrap file and set to /var/lib/yurthub directory | ||
| if err := yurthub.SetHubBootstrapConfig(us[0].Host, o.token, o.caCertHashes); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // 2.Check if yurthub status is healthy | ||
| if err := yurthub.CheckYurthubHealthz(o.yurthubServer); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // 3.Delete temporary bootstrap file | ||
| if err := yurthub.CleanHubBootstrapConfig(); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| }, | ||
| } | ||
|
|
||
| addCertificateConfigFlags(certificateCmd.Flags(), o) | ||
| return certificateCmd | ||
| } | ||
|
|
||
| func (options *certificateOptions) validate() error { | ||
| if len(options.serverAddr) == 0 { | ||
| return fmt.Errorf("server-address is empty") | ||
| } | ||
|
|
||
| if len(options.token) == 0 { | ||
| return fmt.Errorf("bootstrap token is empty") | ||
| } | ||
|
|
||
| if len(options.caCertHashes) == 0 && !options.unsafeSkipCAVerification { | ||
| return fmt.Errorf("set --discovery-token-unsafe-skip-ca-verification flag as true or pass CACertHashes to continue") | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func parseRemoteServers(serverAddr string) ([]*url.URL, error) { | ||
| servers := strings.Split(serverAddr, ",") | ||
| us := make([]*url.URL, 0, len(servers)) | ||
| remoteServers := make([]string, 0, len(servers)) | ||
| for _, server := range servers { | ||
| u, err := url.Parse(server) | ||
| if err != nil { | ||
| klog.Errorf("failed to parse server address %s, %v", servers, err) | ||
| return us, err | ||
| } | ||
| if u.Scheme == "" { | ||
| u.Scheme = "https" | ||
| } else if u.Scheme != "https" { | ||
| return us, fmt.Errorf("only https scheme is supported for server address(%s)", serverAddr) | ||
| } | ||
| us = append(us, u) | ||
| remoteServers = append(remoteServers, u.String()) | ||
| } | ||
|
|
||
| if len(us) < 1 { | ||
| return us, fmt.Errorf("no server address is set, can not connect remote server") | ||
| } | ||
| klog.Infof("%s would connect remote servers: %s", projectinfo.GetHubName(), strings.Join(remoteServers, ",")) | ||
|
|
||
| return us, nil | ||
| } | ||
|
|
||
| // addCertificateConfigFlags adds certificate flags bound to the config to the specified flagset | ||
| func addCertificateConfigFlags(flagSet *flag.FlagSet, certificateOptions *certificateOptions) { | ||
| flagSet.StringVar( | ||
| &certificateOptions.token, yurtconstants.TokenStr, certificateOptions.token, | ||
| "Use this token for bootstrapping yurthub.", | ||
| ) | ||
| flagSet.StringSliceVar( | ||
| &certificateOptions.caCertHashes, yurtconstants.TokenDiscoveryCAHash, certificateOptions.caCertHashes, | ||
| "For token-based discovery, validate that the root CA public key matches this hash (format: \"<type>:<value>\").", | ||
| ) | ||
| flagSet.BoolVar( | ||
| &certificateOptions.unsafeSkipCAVerification, yurtconstants.TokenDiscoverySkipCAHash, certificateOptions.unsafeSkipCAVerification, | ||
| "For token-based discovery, allow joining without --discovery-token-ca-cert-hash pinning.", | ||
| ) | ||
| flagSet.StringVar( | ||
| &certificateOptions.serverAddr, yurtconstants.ServerAddr, certificateOptions.serverAddr, | ||
| "The address of Kubernetes kube-apiserver,the format is: \"server1,server2,...\"", | ||
| ) | ||
| flagSet.StringVar( | ||
| &certificateOptions.yurthubServer, yurtconstants.YurtHubServerAddr, certificateOptions.yurthubServer, | ||
| "Sets the address for yurthub server addr", | ||
| ) | ||
| } |
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