birbnetes/ultrabirb-cluster
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Improved ghetto-terraform

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This commit is contained in:
Pünkösd Marcell 2021-11-11 01:43:28 +01:00
parent 02b1abc371
commit f4bdf8809e
6 changed files with 428 additions and 89 deletions
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1
README.md Normal file
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@ -0,0 +1 @@
Download cloud images from: https://cloud-images.ubuntu.com/focal/current/

52
ansible/inventory.yaml
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@ -1,70 +1,70 @@
# ip addresses could be acquired from the vms after they're created
cloud-1:
vars:
magic_router_ip: 192.168.100.10
magic_router_ip: 192.168.110.10
magic_routes:
- 192.168.101.0/24
- 192.168.102.0/24
- 192.168.103.0/24
- 192.168.111.0/24
- 192.168.112.0/24
- 192.168.113.0/24
ansible_become: true
ansible_user: ubuntu
hosts:
cloud-cluster-1-master-1:
ansible_host: 192.168.100.131
ansible_host: 192.168.110.100
cloud-cluster-1-worker-1:
ansible_host: 192.168.100.239
ansible_host: 192.168.110.101
cloud-cluster-1-worker-2:
ansible_host: 192.168.100.247
ansible_host: 192.168.110.102
edge-1:
vars:
magic_router_ip: 192.168.101.10
magic_router_ip: 192.168.111.10
magic_routes:
- 192.168.100.0/24
- 192.168.102.0/24
- 192.168.103.0/24
- 192.168.110.0/24
- 192.168.112.0/24
- 192.168.113.0/24
ansible_become: true
ansible_user: ubuntu
hosts:
edge-cluster-1-master-1:
ansible_host: 192.168.101.254
ansible_host: 192.168.111.100
edge-cluster-1-worker-1:
ansible_host: 192.168.101.197
ansible_host: 192.168.111.101
edge-cluster-1-worker-2:
ansible_host: 192.168.101.234
ansible_host: 192.168.111.102
edge-2:
become: true
user: ubuntu
vars:
magic_router_ip: 192.168.102.10
magic_router_ip: 192.168.112.10
magic_routes:
- 192.168.100.0/24
- 192.168.101.0/24
- 192.168.103.0/24
- 192.168.110.0/24
- 192.168.111.0/24
- 192.168.113.0/24
ansible_become: true
ansible_user: ubuntu
hosts:
edge-cluster-2-master-1:
ansible_host: 192.168.102.226
ansible_host: 192.168.112.100
edge-cluster-2-worker-1:
ansible_host: 192.168.102.180
ansible_host: 192.168.112.101
edge-cluster-2-worker-2:
ansible_host: 192.168.102.238
ansible_host: 192.168.112.102
site-1:
vars:
magic_router_ip: 192.168.103.10
magic_router_ip: 192.168.113.10
magic_routes:
- 192.168.100.0/24
- 192.168.101.0/24
- 192.168.102.0/24
- 192.168.110.0/24
- 192.168.111.0/24
- 192.168.112.0/24
ansible_become: true
ansible_user: ubuntu
hosts:
site-emulator-1:
ansible_host: 192.168.103.169
ansible_host: 192.168.113.100
all:
children:

22
hosts Normal file
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@ -0,0 +1,22 @@
# [hostname] [ram] [network] [ipaddr]
# Tabs are not allowed, only a single space
# cloud cluster
cloud-cluster-1-master-1 2048 cloud 192.168.110.100
cloud-cluster-1-worker-1 4096 cloud 192.168.110.101
cloud-cluster-1-worker-2 4096 cloud 192.168.110.102
# edge-1
edge-cluster-1-master-1 2048 edge-1 192.168.111.100
edge-cluster-1-worker-1 4096 edge-1 192.168.111.101
edge-cluster-1-worker-2 4096 edge-1 192.168.111.102
# edge-2
edge-cluster-2-master-1 2048 edge-2 192.168.112.100
edge-cluster-2-worker-1 4096 edge-2 192.168.112.101
edge-cluster-2-worker-2 4096 edge-2 192.168.112.102
# site
site-emulator-1 2048 site 192.168.113.100
# magic router
magic-router 1024 cloud,edge-1,edge-2,site -

13
vm_generator/hosts
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@ -1,13 +0,0 @@
edge-cluster-1-master-1 edge-1 2048
edge-cluster-1-worker-1 edge-1 4096
edge-cluster-1-worker-2 edge-1 4096
edge-cluster-2-master-1 edge-2 2048
edge-cluster-2-worker-1 edge-2 4096
edge-cluster-2-worker-2 edge-2 4096
cloud-cluster-1-master-1 cloud 2048
cloud-cluster-1-worker-1 cloud 4096
cloud-cluster-1-worker-2 cloud 4096
site-emulator-1 site 2048

122
vm_generator/generate.py → vm_generator_local/generate.py
View File

@ -32,6 +32,7 @@ chpasswd:
expire: False
packages:
- qemu-guest-agent
- python3
# written to /var/log/cloud-init-output.log
final_message: "The system is finally up, after $UPTIME seconds"
"""
@ -134,10 +135,7 @@ libvirt = """<domain type="kvm">
<controller type="virtio-serial" index="0">
<address type="pci" domain="0x0000" bus="0x04" slot="0x00" function="0x0"/>
</controller>
<interface type="network">
<source network="{virbr}"/>
<model type="virtio"/>
</interface>
{interfacecfg}
<serial type="pty">
<target type="isa-serial" port="0">
<model name="isa-serial"/>
@ -162,9 +160,6 @@ libvirt = """<domain type="kvm">
<graphics type="spice" autoport="yes">
<listen type="address"/>
</graphics>
<sound model="ich9">
<address type="pci" domain="0x0000" bus="0x00" slot="0x1b" function="0x0"/>
</sound>
<audio id="1" type="spice"/>
<video>
<model type="qxl" ram="65536" vram="65536" vgamem="16384" heads="1" primary="yes"/>
@ -187,32 +182,9 @@ libvirt = """<domain type="kvm">
</domain>
"""
def main():
if len(sys.argv) < 2:
print("Usage: generate.py [workdir] [image source]")
return
workdir = sys.argv[1]
img_src = sys.argv[2]
os.makedirs(os.path.join(workdir, 'xml'), exist_ok=True)
os.makedirs(os.path.join(workdir, 'img'), exist_ok=True)
os.makedirs(os.path.join(workdir, 'iso'), exist_ok=True)
with open(os.path.join(workdir, 'hosts'), 'rt') as f:
for line in f:
line = line.replace('\n','')
if not line:
# skip empty lines
continue
hostname, virbr, ram = line.split(' ')
ram=int(ram)
print("Working on",hostname)
def run_iso(outdir:str, hostname:str, ipaddr:str):
isoout = os.path.join(outdir, 'iso')
fhandle, fname = tempfile.mkstemp(suffix='.yaml')
with open(fhandle, "wt") as of:
@ -220,26 +192,86 @@ def main():
cloudinit.format(hostname=hostname)
)
os.system(f'cloud-localds -v {workdir}/iso/cloudinit-{hostname}.iso {fname}')
os.makedirs(isoout, exist_ok=True)
os.system(f'cloud-localds -v {isoout}/cloudinit-{hostname}.iso {fname}')
os.unlink(fname)
hostdrive = os.path.join(workdir, f"img/{hostname}.qcow2")
def run_img(outdir:str, hostname:str, img_src:str):
imgout = os.path.join(outdir, 'img')
os.makedirs(imgout, exist_ok=True)
with open(os.path.join(workdir, f"xml/{hostname}.xml"), "wt") as of:
of.write(
libvirt.format(
hostname=hostname,
ram=ram,
virbr=virbr,
cloudinitiso=os.path.join(workdir, f"iso/cloudinit-{hostname}.iso"),
hostdrive=hostdrive
)
)
hostdrive = os.path.join(imgout, f"{hostname}.qcow2")
shutil.copy(img_src, hostdrive)
os.system(f"qemu-img resize {hostdrive} +100G")
def run_xml(outdir:str, hostname:str, ram:int, net:str, ipaddr:str):
xmlout = os.path.join(outdir, 'xml')
isoout = os.path.join(outdir, 'iso')
cloudinitiso = os.path.join(isoout, f"cloudinit-{hostname}.iso")
imgout = os.path.join(outdir, 'img')
hostdrive = os.path.join(imgout, f"{hostname}.qcow2")
os.makedirs(xmlout, exist_ok=True)
interfacecfg = ""
for n in net.split(','):
interfacecfg += f""" <interface type="network">
<source network="{n}"/>
<model type="virtio"/>
</interface>"""
with open(os.path.join(xmlout, f"{hostname}.xml"), "wt") as of:
of.write(
libvirt.format(
hostname=hostname,
ram=ram,
interfacecfg=interfacecfg,
cloudinitiso=cloudinitiso,
hostdrive=hostdrive
)
)
def main():
if len(sys.argv) < 3:
print("Usage: generate.py [stage] [hostsfile] [image source] [output]")
return
stage = sys.argv[1]
hostsfile = sys.argv[2]
img_src = sys.argv[3]
outdir = sys.argv[4]
if stage not in ['all', 'img', 'iso', 'xml']:
print("Stage should be: all, img, iso or xml")
return
with open(hostsfile, 'rt') as f:
for line in f:
line = line.replace('\n','').strip()
if not line or line.startswith('#'):
# skip empty and comment lines
continue
hostname, ram, net, ipaddr = line.split(' ')
ram=int(ram)
ipaddr = None if ipaddr == '-' else ipaddr
print(f"Working on {hostname}...")
if stage in ['iso', 'all']:
run_iso(outdir, hostname, ipaddr)
if stage in ['img', 'all']:
run_img(outdir,hostname, img_src)
if stage in ['xml', 'all']:
run_xml(outdir,hostname, ram, net, ipaddr)
if __name__ == "__main__":
main()

297
vm_generator_luna/generate.py Normal file
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import sys
import tempfile
import os
import os.path
# For some weird reason cloud-init won't work with files dumped by pyyaml, and I'm fucking tired of debugging this
cloudinit = """#cloud-config
hostname: {hostname}
fqdn: {hostname}.local
manage_etc_hosts: true
users:
- name: ubuntu
sudo: ALL=(ALL) NOPASSWD:ALL
groups: users, admin, sudo
home: /home/ubuntu
shell: /bin/bash
lock_passwd: false
ssh-authorized-keys:
- ssh-rsa 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
- ssh-rsa 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
- ssh-rsa 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
- ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQCno5mh0+xtkCXoeSt5CrXv8IR1/q+FgiZQeZ4rIqKB1Jko3pY0TiYaHv8hZZ3g/aFfuM8expMrhT5BDvSeEYZ15JkBzBcxo/Hyup6IloOYaw1p1v1GdNo6M0V5cC/B7dyGHKcVllzDRLN6kKsWKAyTgtSd8v06sz9FLJe4I9jOkqKcOTjgUfAvF98fCVIo0eOeWFfA/dDXaW2Tu9xaw3sHLnJFDd+kp1r99d7/Tgmf1hITQaVQ/+L6zNxpR4zWzfdLPvKphfVB34VE6Glkn+PnTGV7Q32+VbgcPizbGVcR7V2EHc53u0evB5BkLwfmDQZRKwd5pS5QHFEnPVwIecaJsYCNDFespj2BwJWiiWvL2cOlU15g0r4uj9+nbzsBPdYNJiXD3VZVEGMvTUb9SkmnMlQl10x0a7j00qaPhJ2WROtYemioC9y7MLnHheotjfdaaAmf46EN5N1c08ULbaqOt1AENLdM+PAUeVfqzI2hfQVuTFM+hPdKFWo8ik/SlztbCjL8a6Isrr4ZzWrJVoqg32PnucSvmIRtCGrj5Lt5WViYTAy9SjrQwQ0jdeOtUYyzkeIwpJSmbRLHILL5zLAJFtIKND+XgRclzIM7uD2UqtzEGtmuLE8qx05bukwa7nqjG6UwDpN3nVO3aXcjnzLyuHWnz2NJc0ye2oVwdqPzZQ==
- ssh-rsa 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
# only cert auth via ssh (console access can still login)
ssh_pwauth: false
disable_root: true
chpasswd:
list: |
ubuntu:ansibleme
expire: False
packages:
- qemu-guest-agent
- python3
# written to /var/log/cloud-init-output.log
final_message: "The system is finally up, after $UPTIME seconds"
"""
netplan = """version: 2
ethernets:
enp1s0:
dhcp4: false
dhcp6: false
addresses: [ {addr}/24 ]
gateway4: {gateway}
nameservers:
addresses: [ 8.8.8.8, 8.8.4.4 ]
search: [ local ]
"""
libvirt = """<domain type="kvm">
<name>{hostname}</name>
<metadata>
<libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">
<libosinfo:os id="http://ubuntu.com/ubuntu/20.04"/>
</libosinfo:libosinfo>
</metadata>
<memory unit="MiB">{ram}</memory>
<currentMemory unit="MiB">{ram}</currentMemory>
<vcpu placement="static">2</vcpu>
<os>
<type arch="x86_64" machine="pc-q35-6.1">hvm</type>
<boot dev="hd"/>
</os>
<features>
<acpi/>
<apic/>
<vmport state="off"/>
</features>
<cpu mode="host-model" check="partial"/>
<clock offset="utc">
<timer name="rtc" tickpolicy="catchup"/>
<timer name="pit" tickpolicy="delay"/>
<timer name="hpet" present="no"/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<pm>
<suspend-to-mem enabled="no"/>
<suspend-to-disk enabled="no"/>
</pm>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<disk type="file" device="cdrom">
<driver name="qemu" type="raw"/>
<source file="{cloudinitiso}"/>
<target dev="sda" bus="sata"/>
<readonly/>
</disk>
<disk type="file" device="disk">
<driver name="qemu" type="qcow2"/>
<source file="{hostdrive}"/>
<target dev="vda" bus="virtio"/>
</disk>
<controller type="usb" index="0" model="qemu-xhci" ports="15">
<address type="pci" domain="0x0000" bus="0x02" slot="0x00" function="0x0"/>
</controller>
<controller type="scsi" index="0" model="virtio-scsi">
<address type="pci" domain="0x0000" bus="0x03" slot="0x00" function="0x0"/>
</controller>
<controller type="sata" index="0">
<address type="pci" domain="0x0000" bus="0x00" slot="0x1f" function="0x2"/>
</controller>
<controller type="pci" index="0" model="pcie-root"/>
<controller type="pci" index="1" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="1" port="0x10"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x0" multifunction="on"/>
</controller>
<controller type="pci" index="2" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="2" port="0x11"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x1"/>
</controller>
<controller type="pci" index="3" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="3" port="0x12"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x2"/>
</controller>
<controller type="pci" index="4" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="4" port="0x13"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x3"/>
</controller>
<controller type="pci" index="5" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="5" port="0x14"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x4"/>
</controller>
<controller type="pci" index="6" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="6" port="0x15"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x5"/>
</controller>
<controller type="pci" index="7" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="7" port="0x16"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x6"/>
</controller>
<controller type="pci" index="8" model="pcie-root-port">
<model name="pcie-root-port"/>
<target chassis="8" port="0x17"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x7"/>
</controller>
<controller type="virtio-serial" index="0">
<address type="pci" domain="0x0000" bus="0x04" slot="0x00" function="0x0"/>
</controller>
{interfacecfg}
<serial type="pty">
<target type="isa-serial" port="0">
<model name="isa-serial"/>
</target>
</serial>
<console type="pty">
<target type="serial" port="0"/>
</console>
<channel type="unix">
<target type="virtio" name="org.qemu.guest_agent.0"/>
<address type="virtio-serial" controller="0" bus="0" port="1"/>
</channel>
<channel type="spicevmc">
<target type="virtio" name="com.redhat.spice.0"/>
<address type="virtio-serial" controller="0" bus="0" port="2"/>
</channel>
<input type="tablet" bus="usb">
<address type="usb" bus="0" port="1"/>
</input>
<input type="mouse" bus="ps2"/>
<input type="keyboard" bus="ps2"/>
<graphics type="spice" autoport="yes">
<listen type="address"/>
</graphics>
<audio id="1" type="spice"/>
<video>
<model type="qxl" ram="65536" vram="65536" vgamem="16384" heads="1" primary="yes"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x0"/>
</video>
<redirdev bus="usb" type="spicevmc">
<address type="usb" bus="0" port="2"/>
</redirdev>
<redirdev bus="usb" type="spicevmc">
<address type="usb" bus="0" port="3"/>
</redirdev>
<memballoon model="virtio">
<address type="pci" domain="0x0000" bus="0x06" slot="0x00" function="0x0"/>
</memballoon>
<rng model="virtio">
<backend model="random">/dev/urandom</backend>
<address type="pci" domain="0x0000" bus="0x07" slot="0x00" function="0x0"/>
</rng>
</devices>
</domain>
"""
def run_iso(hostname:str, ipaddr:str):
isoout = "/var/lib/libvirt/images/cloudiso"
gateway = '192.168.' + ipaddr.split('.')[3] + '.1' # Ezen Kristóf jót nevetett
cloudinit_fhandle, cloudinit_fname = tempfile.mkstemp(suffix='.yaml')
with open(cloudinit_fhandle, "wt") as f:
f.write(
cloudinit.format(hostname=hostname)
)
netplan_fhandle, netplan_fname = tempfile.mkstemp(suffix='.yaml')
with open(netplan_fhandle, "wt") as f:
f.write(
netplan.format(
addr=ipaddr,
gateway=gateway,
)
)
os.makedirs(isoout, exist_ok=True)
os.system(f'cloud-localds -v {isoout}/cloudinit-{hostname}.iso --network-config={netplan_fname} {cloudinit_fname}')
os.unlink(cloudinit_fname)
os.unlink(netplan_fname)
def run_img(hostname:str, img_src:str):
lv_name = hostname.replace('-', '_')
hostdrive = f"/dev/vmdatastore/{lv_name}"
os.system(f'dd if={img_src} of={hostdrive} bs=4M')
def run_xml(outdir:str, hostname:str, ram:int, net:str):
xmlout = os.path.join(outdir, 'xml')
isoout = "/var/lib/libvirt/images/cloudiso"
cloudinitiso = os.path.join(isoout, f"cloudinit-{hostname}.iso")
lv_name = hostname.replace('-', '_')
hostdrive = f"/dev/vmdatastore/{lv_name}"
os.makedirs(xmlout, exist_ok=True)
interfacecfg = ""
for n in net.split(','):
interfacecfg += f""" <interface type="network">
<source network="{n}"/>
<model type="virtio"/>
</interface>"""
with open(os.path.join(xmlout, f"{hostname}.xml"), "wt") as of:
of.write(
libvirt.format(
hostname=hostname,
ram=ram,
interfacecfg=interfacecfg,
cloudinitiso=cloudinitiso,
hostdrive=hostdrive
)
)
def main():
if len(sys.argv) < 3:
print("Usage: generate.py [stage] [hostsfile] [image source] [output]")
return
stage = sys.argv[1]
hostsfile = sys.argv[2]
img_src = sys.argv[3]
outdir = sys.argv[4]
if stage not in ['all', 'img', 'iso', 'xml']:
print("Stage should be: all, img, iso or xml")
return
with open(hostsfile, 'rt') as f:
for line in f:
line = line.replace('\n','').strip()
if not line or line.startswith('#'):
# skip empty and comment lines
continue
hostname, ram, net, ipaddr = line.split(' ')
ram=int(ram)
ipaddr = None if ipaddr == '-' else ipaddr
print(f"Working on {hostname}...")
if stage in ['iso', 'all']:
run_iso(hostname, ipaddr)
if stage in ['img', 'all']:
run_img(hostname, img_src)
if stage in ['xml', 'all']:
run_xml(outdir,hostname, ram, net)
if __name__ == "__main__":
main()