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CoreOS用のcloud-config.ymlを晒しておく

CoreOS

Last updated at 2015-06-25Posted at 2014-10-21

etcd/fleet/dockerの自動起動、 TimeZoneのJST化、固定IP化、ユーザ作成(ssh鍵2つ入り)ができるcloud-config.ymlを晒します

cloud-config.yml

#cloud-config

hostname: coreos01

coreos:
  update:
    reboot-strategy: best-effort
  etcd:
    discovery: https://discovery.etcd.io/{HASH}
    addr: 10.200.0.66:4001
    peer-addr: 10.200.0.66:7001
    bind-addr: 0.0.0.0
  fleet:
    public_ip: 10.200.0.66
  units:
    - name: etcd.service
      command: start
    - name: fleet.service
      command: start
    - name: docker.service
      command: start
    - name: timezone.service
      command: start
      content: |
        [Unit]
        Description=timezone
        [Service]
        Type=oneshot
        RemainAfterExit=yes
        ExecStart=/usr/bin/ln -sf ../usr/share/zoneinfo/Japan /etc/localtime
    - name: 10-static.network
      runtime: no
      content: |
        [Match]
        Name=eth0

        [Network]
        Address=10.200.0.66/24
        Gateway=10.200.0.1
        DNS=10.200.0.2
        DNS=10.200.0.3

users:
  - name: coreuser1
    passwd: `openssl passwd -1`
    groups:
      - sudo
      - docker
    ssh-authorized-keys:
      - ssh-rsa AAAA...68= user1@example.jp
      - ssh-rsa AAAA...3h1= user2@example.jp

※10/22: コメントでのアドバイスを基に変更

users.passwdは、openssl passwd -1の結果を貼り付けてください。それ以外にもmkpasswdやperl/pythonを使う方法があるようです

{HASH}は https://coreos.com/docs/cluster-management/setup/cluster-discovery/ を見て得るか、自前でetcdサーバを立てた時のものを使ってください

cloud-config.ymlのデバッグ方法

coreos-cloudinitコマンドが利用できます

$ sudo coreos-cloudinit -from-file=./cloud-config.yml

現在のOS設定がcloud-config.ymlの内容に書き換わっちゃうので要注意

参考資料

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