Linux系统源码安装cloud-init

参考：https://cloud.tencent.com/document/product/213/12587
使用以下命令下载 cloud-init 源码包

官网下载地址：https://launchpad.net/cloud-init/+download

wget https://launchpad.net/cloud-init/trunk/17.1/+download/cloud-init-17.1.tar.gz

安装 cloud-init 依赖包

setuptools
jinja2
prettytable
oauthlib
configobj
pyyaml
requests
jsonpatch
jsonschema
six

yum install python-pip -y
pip install setuptools jinja2 prettytable oauthlib pyyaml requests jsonpatch jsonschema six --upgrade

安装

tar -zxvf cloud-init-17.1.tar.gz
cd ./cloud-init-17.1
python setup.py build
python setup.py install --init-system systemd

其中，--init-system 的可选参数有：(systemd，sysvinit，sysvinit_deb，sysvinit_freebsd，sysvinit_openrc，sysvinit_suse，upstart)；[default: None]，需要根据当前操作系统使用的自启动服务管理方式是什么进行选择，如果选择出错则 cloud-init 服务无法开机自启动，本例以 systemd 自启动服务管理为例。

centos/redhat 6用的是sysvinit, 7系列用的是systemd, ubuntu用的是是upstart

添加 syslog 用户

useradd syslog

设置 cloud-init 服务开机自启动

systemctl enable cloud-init-local.service
systemctl start cloud-init-local.service
systemctl enable cloud-init.service
systemctl start cloud-init.service
systemctl enable cloud-config.service
systemctl start cloud-config.service
systemctl enable cloud-final.service
systemctl start cloud-final.service
systemctl status cloud-init-local.service
systemctl status cloud-init.service
systemctl status cloud-config.service
systemctl status cloud-final.service

CentOS 和 Red Hat 操作系统特殊执行：将/lib/systemd/system/cloud-init-local.service文件内容替换为如下：

[Unit]
Description=Initial cloud-init job (pre-networking)
Wants=network-pre.target
After=systemd-remount-fs.service
Before=NetworkManager.service
Before=network-pre.target
Before=shutdown.target
Conflicts=shutdown.target
RequiresMountsFor=/var/lib/cloud

[Service]
Type=oneshot
ExecStart=/usr/bin/cloud-init init --local
ExecStart=/bin/touch /run/cloud-init/network-config-ready
RemainAfterExit=yes
TimeoutSec=0

# Output needs to appear in instance console output
StandardOutput=journal+console

[Install]
WantedBy=cloud-init.target

将/lib/systemd/system/cloud-init.service文件内容替换为如下：

[Unit]
Description=Initial cloud-init job (metadata service crawler)
Wants=cloud-init-local.service
Wants=sshd-keygen.service
Wants=sshd.service
After=cloud-init-local.service
After=systemd-networkd-wait-online.service
After=networking.service
After=systemd-hostnamed.service
Before=network-online.target
Before=sshd-keygen.service
Before=sshd.service
Before=systemd-user-sessions.service
Conflicts=shutdown.target

[Service]
Type=oneshot
ExecStart=/usr/bin/cloud-init init
RemainAfterExit=yes
TimeoutSec=0

# Output needs to appear in instance console output
StandardOutput=journal+console

[Install]
WantedBy=cloud-init.target