背景
基础设施即代码的当红小生，大有把大哥terraform比下去的趋势。有评价说terraform是配置文件即代码，而pulumi才是真正的基础设施既代码。说白了就是terraform被人诟病的HCL语言过于“刻板”，甚至有点当年puppet那有一定入门门槛的语言一样。所以喜欢自由的devops们都对于pulumi的门下，甚至thoughtworks技术雷达里在2021年10月将等级从评估提到了实验级别。 所以借着研究基础设施既代码的机会，研究下这位当红小生吧。
结论
把结论放到这里各位可以各取所需，不太适合的就可以不看下面的详细过程了
- 小众Provider需要时间和经历尝试，如果只是像proxmox这样自己玩玩homelab的，平时创建个机器啥的。ansible和terraform都可以满足你的需要。不一定非要用pulumi。
- 尽量用python，调试资料啥的都好找一些。尝试了下golang，有点小放弃。主要是用的人不太多。而且编译成一个文件执行的机会可能也不大。大多数时候还是shell+bin。当然这个依据你的技术栈而定。
- 可以用用它的k8s模块，目前还没有尝试。不过k8s的yml确实跟terraform puppet这些前辈们有一拼。不知道这个效果如何。
- 最后总结下：如果terraform能满足你的需要，用着吧。如果有一些实在不能满足需要的，再来看看pulumi。或许有惊喜。
过程
阿里云
环境准备
export ALICLOUD_ACCESS_KEY=xxxxx
export ALICLOUD_SECRET_KEY=xxxxxx
mkdir quickstart && cd quickstart
pulumi new python --force
source venv/bin/activate
main.py
"""A Python Pulumi program"""
import pulumi
import pulumi_alicloud as alicloud
vpc = alicloud.vpc.Network("my-vpc",cidr_block="172.16.0.0/12")
az = "cn-beijing-c"
sg = alicloud.ecs.SecurityGroup("pulumi_sg",description="pulumi security_groups",vpc_id=vpc.id)
vswitch = alicloud.vpc.Switch("pulumi_vswitch",zone_id=az,cidr_block="172.16.0.0/21",vpc_id=vpc.id)
sg_ids= [sg.id]
sg_rule= alicloud.ecs.SecurityGroupRule("sg_rule",security_group_id=sg.id,ip_protocol = "tcp", type= "ingress",nic_type = "intranet",port_range="22/22",cidr_ip="0.0.0.0/0")
instance=alicloud.ecs.Instance("ecs-instance2",availability_zone=az,instance_type ="ecs.t5-lc2m1.nano" , security_groups =sg_ids,image_id="ubuntu_18_04_64_20G_alibase_20190624.vhd",instance_name ="ecsCreatedByPulumi2",vswitch_id=vswitch.id,internet_max_bandwidth_out = 10)
proxmox
环境准备
git clone https://github.com/ryan4yin/pulumi-proxmox.git
cd pulumi-proxmox
brew tap pulumi/tap
brew install pulumictl
make build_sdks
make install_python_sdk
pulumi plugin install resource proxmox v0.0.6
main.py
import os
from pathlib import Path
import pulumi
from pulumi_proxmox import Provider, ProviderVirtualEnvironmentArgs
from pulumi_proxmox.vm import *
# this provider cannot read configuration from Environment variables yet,
# You must manually pass parameters by instantiating a custom provider
proxmox_provider = Provider(
"proxmox-provider",
virtual_environment=ProviderVirtualEnvironmentArgs(
endpoint=os.getenv("PROXMOX_VE_ENDPOINT"),
insecure=os.getenv("PROXMOX_VE_INSECURE") == "true",
username=os.getenv("PROXMOX_VE_USERNAME"),
password=os.getenv("PROXMOX_VE_PASSWORD")
)
)
# create a virtual machine
VirtualMachine(
"ubuntu-vm-0",
name="ubuntu-vm-0",
description="a ubuntu vm for test",
node_name="homelab",
on_boot=True, # start the vm during system bootup
reboot=False, # reboot the vm after it was created successfully
started=True, # start the vm after it was created successfully
# clone from a vm template
clone=VirtualMachineCloneArgs(
vm_id=110, # template's vmId
full=False, # full clone, not linked clone
datastore_id="local-lvm", # template's datastore
node_name="homelab", # template's node name
),
# resource pool name
#pool_id="local",
cpu=VirtualMachineCpuArgs(
cores=2,
sockets=2,
type="kvm64", # set it to kvm64 for better vm migration
),
memory=VirtualMachineMemoryArgs(
dedicated="4096", # unit: MB
shared="4096"
),
operating_system=VirtualMachineOperatingSystemArgs(
type="l26" # l26: linux2.6-linux5.x
),
agent=VirtualMachineAgentArgs(
# please confirm you have qemu-guest-agent in your vm before enable this!
# otherwise this may cause the vm to fail to shutdown/reboot!
enabled=False,
timeout="60s", # timeout
),
disks=[
VirtualMachineDiskArgs(
interface="scsi0",
datastore_id="local-lvm",
size="30", # unit: GB
)
],
network_devices=[
VirtualMachineNetworkDeviceArgs(
enabled=True,
bridge="vmbr0",
model="virtio",
vlan_id=0,
)
],
# cloud init configuration
initialization=VirtualMachineInitializationArgs(
type="nocloud", # 'nocloud' for linux, 'configdrive2' for windows
#datastore_id="local-lvm",
dns=VirtualMachineInitializationDnsArgs(
# dns servers,
server="114.114.114.114,8.8.8.8",
),
ip_configs=[
VirtualMachineInitializationIpConfigArgs(
ipv4=VirtualMachineInitializationIpConfigIpv4Args(
address="192.168.1.111/24",
gateway="192.168.1.1"
)
)
],
user_account=VirtualMachineInitializationUserAccountArgs(
# set root's ssh key
keys=[
Path("ssh-common.pub").read_text()
],
password="chage_me", # needed when login from console
username="root",
)
),
# use custom provider
opts=pulumi.ResourceOptions(
provider=proxmox_provider
)
)