sigs.k8s.io/cluster-api/bootstrap/kubeadm@v0.0.0-20191016155141-23a891785b60/cloudinit/controlplane_init.go (about)

     1  /*
     2  Copyright 2019 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package cloudinit
    18  
    19  import (
    20  	"sigs.k8s.io/cluster-api/bootstrap/kubeadm/internal/cluster"
    21  )
    22  
    23  const (
    24  	controlPlaneCloudInit = `{{.Header}}
    25  {{template "files" .WriteFiles}}
    26  -   path: /tmp/kubeadm.yaml
    27      owner: root:root
    28      permissions: '0640'
    29      content: |
    30        ---
    31  {{.ClusterConfiguration | Indent 6}}
    32        ---
    33  {{.InitConfiguration | Indent 6}}
    34  runcmd:
    35  {{- template "commands" .PreKubeadmCommands }}
    36    - 'kubeadm init --config /tmp/kubeadm.yaml'
    37  {{- template "commands" .PostKubeadmCommands }}
    38  {{- template "ntp" .NTP }}
    39  {{- template "users" .Users }}
    40  `
    41  )
    42  
    43  // ControlPlaneInput defines the context to generate a controlplane instance user data.
    44  type ControlPlaneInput struct {
    45  	BaseUserData
    46  	cluster.Certificates
    47  
    48  	ClusterConfiguration string
    49  	InitConfiguration    string
    50  }
    51  
    52  // NewInitControlPlane returns the user data string to be used on a controlplane instance.
    53  func NewInitControlPlane(input *ControlPlaneInput) ([]byte, error) {
    54  	input.Header = cloudConfigHeader
    55  	input.WriteFiles = input.Certificates.AsFiles()
    56  	input.WriteFiles = append(input.WriteFiles, input.AdditionalFiles...)
    57  	userData, err := generate("InitControlplane", controlPlaneCloudInit, input)
    58  	if err != nil {
    59  		return nil, err
    60  	}
    61  
    62  	return userData, nil
    63  }