原因が複数ある。
2018-12-01 10:01:12,135 - stages.py[INFO]: Applying network configuration from fallback bringup=False: {'version': 1, 'config': [{'subnets': [{'type': 'dhcp'}], 'type': 'physical', 'name': 'eth0', 'mac_address': '0a:c7:55:d8:a0:cc'}]} 2018-12-01 10:01:12,138 - util.py[DEBUG]: Writing to /etc/sysconfig/network-scripts/ifcfg-eth0 - wb: [420] 159 bytes
manage_resolv_conf: false
network: config: disabled
PEERDNS=no
sudo vim /etc/cloud/cloud.cfg ---- preserve_hostname: true cloud_init_modules: # - update_hostname ----
sudo rm -rf /var/lib/cloud/*
#cloud-config repo_upgrade: none preserve_hostname: true manage_resolv_conf: false network: config: disabled mount_default_fields: [~, ~, 'auto', 'defaults,nofail', '0', '2'] mounts: - [ swap, none, swap, sw, 0, 0 ] - [ ephemeral0, null ] - [ ephemeral1, null ] - [ ephemeral2, null ] - [ ephemeral3, null ] cloud_init_modules: # - update_hostname