LXD Provision by Yaml - Revision history

Busk at 21:31, 4 November 2021

2021-11-04T21:31:55Z

Busk at 19:38, 4 November 2021

2021-11-04T19:38:52Z

Busk: Created page with "``` import yaml # pyyaml from yaml import load, dump from subprocess import Popen, PIPE import time try: from yaml import CLoader as Loader, CDumper as Dumper except Imp..."

2021-11-04T19:36:46Z

Created page with "``` import yaml # pyyaml from yaml import load, dump from subprocess import Popen, PIPE import time try: from yaml import CLoader as Loader, CDumper as Dumper except Imp..."

New page

```
import yaml # pyyaml
from yaml import load, dump
from subprocess import Popen, PIPE
import time

try:
from yaml import CLoader as Loader, CDumper as Dumper
except ImportError:
from yaml import Loader, Dumper

with open(r'config.yml') as f:
config = yaml.safe_load(f)

def create_container(c):
lxd_ipv4 = config['lxd']['ipv4']
lxd_bridge = config['lxd']['bridge']
authorized_keys = c['authorized_keys']
image = c['image']
name = c['name']
proxy = c['proxy']
ipv4 = c['ipv4']
process = Popen(['lxc', 'init', image, name], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
# if len(stdout.decode()) != 0:
# print(stdout.decode())

process = Popen(['lxc', 'network', 'attach', lxd_bridge, name, 'eth0', 'eth0'], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
if len(stdout.decode()) != 0:
print(stdout.decode())

process = Popen(['lxc', 'config', 'device', 'set', name, 'eth0', 'ipv4.address', ipv4], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
if len(stdout.decode()) != 0:
print(stdout.decode())

for p in proxy:
src_port = p.split(':')[0]
dst_port = p.split(':')[1]
process = Popen(['lxc', 'config', 'device', 'add', name, f'proxy4_tcp{dst_port}', 'proxy', 'nat=true', f'listen=tcp:{lxd_ipv4}:{src_port}', f'connect=tcp:0.0.0.0:{dst_port}'], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
if len(stdout.decode()) != 0:
print(stdout.decode())

process = Popen(['lxc', 'start', name], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
if len(stdout.decode()) != 0:
print(stdout.decode())
process = Popen(['lxc', 'exec', name, '--', 'bash', '-c', 'while [ ! -d /root ]; do sleep 2; done'], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
if "centos" in image.lower() or "rhel" in image.lower():
process = Popen(['lxc', 'exec', name, '--', 'bash', '-c', 'if [ ! -d /root/.ssh ]; then mkdir -p /root/.ssh; fi'], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
process = Popen(['lxc', 'exec', name, '--', 'bash', '-c', 'if [ ! -f /root/.ssh/authorized_keys ]; then touch /root/.ssh/authorized_keys; fi'], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()

process = Popen(['lxc', 'exec', name, '--', 'bash', '-c', 'while [ ! -f /root/.ssh/authorized_keys ]; do sleep 2; done'], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()

for authorized_key in authorized_keys:
process = Popen(['lxc', 'exec', name, '--', 'bash', '-c', f'grep \"{authorized_key}\" /root/.ssh/authorized_keys || echo {authorized_key} >> /root/.ssh/authorized_keys'], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
# print(stdout.decode(), stderr.decode())
# print(f"Successfully created container {name}.")

def list_containers():
process = Popen(['lxc', 'list'], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
print(stdout.decode())

def main():
for container_name in config['containers']:
container = config['containers'][container_name]
create_container(container)
list_containers()

if __name__ == "__main__":
main()
```

@@ Line 14: / Line 14: @@
      config = yaml.safe_load(f)
 def create_container(c):
@@ Line 53: / Line 65: @@
      stdout, stderr = process.communicate()
      if "centos" in image.lower() or "rhel" in image.lower():
-         process = Popen(['lxc', 'exec', name, '--', 'bash', '-c', 'if [ ! -d /root/.ssh ]; then mkdir -p /root/.ssh; fi'], stdout=PIPE, stderr=PIPE)
+         prep_rhel(name)
      process = Popen(['lxc', 'exec', name, '--', 'bash', '-c', 'while [ ! -f /root/.ssh/authorized_keys ]; do sleep 2; done'], stdout=PIPE, stderr=PIPE)

@@ Line 1: / Line 1: @@
 ```
 import yaml  # pyyaml
@@ Line 82: / Line 83: @@
 if __name__ == "__main__":
      main()
 ```