bfe345dd86
Adds kubeadm subcommands to create, list, and delete bootstrap tokens. Tokens can be created with a TTL duration, or 0 for tokens that will not expire. The create command can also be used to specify your own token (for use when bootstrapping masters and nodes in parallel), or update an existing token's secret or ttl. Marked "ex" for experimental for now as the boostrap controllers are not yet hooked up in core.
60 lines
2.0 KiB
Go
60 lines
2.0 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package master
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import (
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"bytes"
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"fmt"
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"os"
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"path"
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"strconv"
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kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
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kubeadmapiext "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1alpha1"
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kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
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cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
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netutil "k8s.io/kubernetes/pkg/util/net"
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"k8s.io/kubernetes/pkg/util/uuid"
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)
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func PrepareTokenDiscovery(d *kubeadmapi.TokenDiscovery) error {
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if len(d.Addresses) == 0 {
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ip, err := netutil.ChooseHostInterface()
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if err != nil {
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return err
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}
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d.Addresses = []string{ip.String() + ":" + strconv.Itoa(kubeadmapiext.DefaultDiscoveryBindPort)}
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}
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if err := kubeadmutil.GenerateTokenIfNeeded(d); err != nil {
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return fmt.Errorf("failed to generate token(s) [%v]", err)
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}
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return nil
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}
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func CreateTokenAuthFile(bt string) error {
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tokenAuthFilePath := path.Join(kubeadmapi.GlobalEnvParams.HostPKIPath, "tokens.csv")
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if err := os.MkdirAll(kubeadmapi.GlobalEnvParams.HostPKIPath, 0700); err != nil {
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return fmt.Errorf("failed to create directory %q [%v]", kubeadmapi.GlobalEnvParams.HostPKIPath, err)
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}
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serialized := []byte(fmt.Sprintf("%s,kubeadm-node-csr,%s,system:kubelet-bootstrap\n", bt, uuid.NewUUID()))
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// DumpReaderToFile create a file with mode 0600
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if err := cmdutil.DumpReaderToFile(bytes.NewReader(serialized), tokenAuthFilePath); err != nil {
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return fmt.Errorf("failed to save token auth file (%q) [%v]", tokenAuthFilePath, err)
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}
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return nil
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}
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