proxmox-gestion-con-scrypt-python-proxmoxer

Proxmox: Gestión con scrypt Python Proxmoxer

Raul Unzue Pulido 9 mayo, 2020 Proxmox, Python, Virtualizacion Deja un comentario 3,200 Vistas

Proxmox: Gestión con scrypt Python Proxmoxer

Os explicamos como automatizar procesos en Proxmox a través de Python y del proyecto Proxmoxer.

Dejo el enlace del mismo: https://pypi.org/project/proxmoxer/#description

Reutilizaré la máquina de Terraform que me permite ejecutar en remoto comandos igualmente, y que hasta ahora lanzaba objetos sobre un clúster VMware vSphere. Como ya he comentado alguna vez dispongo adicionalmente de un clúster Proxmox de 3 nodos físicos. La idea es poder lanzar desde una máquina virtual del propio clúster automatizaciones de máquinas virtuales y LXC.

En este caso, lo haremos con Python, pero lo intentaremos con Terraform, Ansible, y otros proyectos viendo cual es el mejor para lo que queremos hacer.

Instalación Proxmoxer (PIP) en Centos 7

Comprobamos que no tenemos pip instalado (que será lo normal):
[root@TERRAFORM ~]# pi pidof pinentry-curses ping6 pivot_root pinentry ping pinky

Os muestro mi versión de mi LXC, en Centos 7:

[root@TERRAFORM ~]# cat /etc/redhat-release CentOS Linux release 7.7.1908 (Core)

Necesitamos instalar el repo EPEL, así que lo instalamos si no lo tenemos ya:

[root@TERRAFORM ~]# yum install epel-release Loaded plugins: fastestmirror Determining fastest mirrors epel/x86_64/metalink | 27 kB 00:00:03 * base: mirror.airenetworks.es * epel: mirror.uv.es * extras: mirror.gadix.com * updates: mirror.airenetworks.es base | 3.6 kB 00:00:00 epel | 4.7 kB 00:00:00 extras | 2.9 kB 00:00:00 updates | 2.9 kB 00:00:00 (1/7): base/7/x86_64/group_gz | 153 kB 00:00:00 (2/7): epel/x86_64/group_gz | 95 kB 00:00:00 (3/7): base/7/x86_64/primary_db | 6.1 MB 00:00:00 (4/7): epel/x86_64/updateinfo | 1.0 MB 00:00:01 (5/7): updates/7/x86_64/primary_db | 176 kB 00:00:00 (6/7): extras/7/x86_64/primary_db | 190 kB 00:00:00 (7/7): epel/x86_64/primary_db | 6.8 MB 00:00:02 Resolving Dependencies --> Running transaction check ---> Package epel-release.noarch 0:7-11 will be updated ---> Package epel-release.noarch 0:7-12 will be an update --> Finished Dependency Resolution ...

Lanzo la instalación de PIP para Centos 7:

[root@TERRAFORM ~]# yum -y install python-pip Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.airenetworks.es * epel: mirror.uv.es * extras: mirror.gadix.com * updates: mirror.airenetworks.es Resolving Dependencies --> Running transaction check ---> Package python2-pip.noarch 0:8.1.2-12.el7 will be installed --> Processing Dependency: python-setuptools for package: python2-pip-8.1.2-12.el7.noarch --> Running transaction check ---> Package python-setuptools.noarch 0:0.9.8-7.el7 will be installed --> Processing Dependency: python-backports-ssl_match_hostname for package: python-setuptools-0.9.8-7.el7.noarch --> Running transaction check ... Complete!

Intento instalar proxmoxer:

[root@TERRAFORM ~]# pip install proxmoxer Collecting proxmoxer Downloading https://files.pythonhosted.org/packages/fa/3e/1a0cc0fd8c676e0b3156d92f7e69420e6d1d25a01db5057899461e83bf88/proxmoxer-1.0.4.tar.gz Installing collected packages: proxmoxer Running setup.py install for proxmoxer ... done Successfully installed proxmoxer-1.0.4 You are using pip version 8.1.2, however version 20.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command.

Me pide considerar hacer un upgrade de pip (y donde hay patrón…):

[root@TERRAFORM ~]# pip install --upgrade pip Collecting pip Downloading https://files.pythonhosted.org/packages/54/2e/df11ea7e23e7e761d484ed3740285a34e38548cf2bad2bed3dd5768ec8b9/pip-20.1-py2.py3-none-any.whl (1.5MB) 100% |################################| 1.5MB 1.0MB/s Installing collected packages: pip Found existing installation: pip 8.1.2 Uninstalling pip-8.1.2: Successfully uninstalled pip-8.1.2 Successfully installed pip-20.1

Hacemos un upgrade de paquetes:

[root@TERRAFORM ~]# yum -y update Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.airenetworks.es * epel: mirror.uv.es * extras: mirror.gadix.com * updates: mirror.airenetworks.es Resolving Dependencies --> Running transaction check ---> Package acl.x86_64 0:2.2.51-14.el7 will be updated .... Complete!

Intentamos instalar proxmoxer:

En mi caso, tengo que instalar antes wheel:

[root@TERRAFORM ~]# pip install wheel DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support Collecting wheel Downloading wheel-0.34.2-py2.py3-none-any.whl (26 kB) Installing collected packages: wheel Successfully installed wheel-0.34.2

Ya podemos instalar proxmoxer:

[root@TERRAFORM ~]# pip install proxmoxer DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support Requirement already satisfied: proxmoxer in /usr/lib/python2.7/site-packages (1.0.4) [root@TERRAFORM ~]# pip install requests DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support Collecting requests Downloading requests-2.23.0-py2.py3-none-any.whl (58 kB) |################################| 58 kB 2.5 MB/s Collecting certifi>=2017.4.17 Downloading certifi-2020.4.5.1-py2.py3-none-any.whl (157 kB) |################################| 157 kB 10.9 MB/s Collecting urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 Downloading urllib3-1.25.9-py2.py3-none-any.whl (126 kB) |################################| 126 kB 90.8 MB/s Collecting idna<3,>=2.5 Downloading idna-2.9-py2.py3-none-any.whl (58 kB) |################################| 58 kB 11.8 MB/s Collecting chardet<4,>=3.0.2 Downloading chardet-3.0.4-py2.py3-none-any.whl (133 kB) |################################| 133 kB 93.8 MB/s Installing collected packages: certifi, urllib3, idna, chardet, requests Successfully installed certifi-2020.4.5.1 chardet-3.0.4 idna-2.9 requests-2.23.0 urllib3-1.25.9

Instalamos paramiko:

[root@TERRAFORM ~]# pip install paramiko DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support Collecting paramiko Downloading paramiko-2.7.1-py2.py3-none-any.whl (206 kB) |################################| 206 kB 3.5 MB/s Collecting cryptography>=2.5 Downloading cryptography-2.9.2-cp27-cp27mu-manylinux2010_x86_64.whl (2.7 MB) |################################| 2.7 MB 11.2 MB/s Collecting pynacl>=1.0.1 Downloading PyNaCl-1.3.0-cp27-cp27mu-manylinux1_x86_64.whl (762 kB) |################################| 762 kB 38.2 MB/s Collecting bcrypt>=3.1.3 Downloading bcrypt-3.1.7-cp27-cp27mu-manylinux1_x86_64.whl (59 kB) |################################| 59 kB 14.1 MB/s Collecting six>=1.4.1 Downloading six-1.14.0-py2.py3-none-any.whl (10 kB) Collecting cffi!=1.11.3,>=1.8 Downloading cffi-1.14.0-cp27-cp27mu-manylinux1_x86_64.whl (387 kB) |################################| 387 kB 63.4 MB/s Requirement already satisfied: ipaddress; python_version < "3" in /usr/lib/python2.7/site-packages (from cryptography>=2.5->paramiko) (1.0.16) Collecting enum34; python_version < "3" Downloading enum34-1.1.10-py2-none-any.whl (11 kB) Collecting pycparser Downloading pycparser-2.20-py2.py3-none-any.whl (112 kB) |################################| 112 kB 46.0 MB/s Installing collected packages: six, pycparser, cffi, enum34, cryptography, pynacl, bcrypt, paramiko Successfully installed bcrypt-3.1.7 cffi-1.14.0 cryptography-2.9.2 enum34-1.1.10 paramiko-2.7.1 pycparser-2.20 pynacl-1.3.0 six-1.14.0

Podéis comprobar los módulos cargados:

[root@TERRAFORM ~]# pip freeze DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support backports.ssl-match-hostname==3.5.0.1 bcrypt==3.1.7 certifi==2020.4.5.1 cffi==1.14.0 chardet==3.0.4 cryptography==2.9.2 enum34==1.1.10 idna==2.9 iniparse==0.4 ipaddress==1.0.16 paramiko==2.7.1 proxmoxer==1.0.4 pycparser==2.20 pycurl==7.19.0 pygpgme==0.3 pyliblzma==0.5.3 PyNaCl==1.3.0 pyxattr==0.5.1 requests==2.23.0 six==1.14.0 urlgrabber==3.10 urllib3==1.25.9 yum-metadata-parser==1.1.4

Obtener máquinas virtuales por script en Proxmox

Si queremos usar nuestros usuarios linux:

[root@TERRAFORM ~]# nano proxmoxer-getnodes.py

from proxmoxer import ProxmoxAPI

proxmox = ProxmoxAPI('192.168.2.51', user='root@pam',

                     password='CONTRASEÑA', verify_ssl=False)

for vm in proxmox.cluster.resources.get(type='vm'):

    print("{0}. {1} =&gt; {2}" .format(vm['vmid'], vm['name'], vm['status']))

from proxmoxer import ProxmoxAPI

proxmox = ProxmoxAPI('192.168.2.51', user='root@pam',

password='CONTRASEÑA', verify_ssl=False)

for vm in proxmox.cluster.resources.get(type='vm'):

print("{0}. {1} => {2}" .format(vm['vmid'], vm['name'], vm['status']))

O podemos usar este contenido para usuarios PVE:

from proxmoxer import ProxmoxAPI

1	from proxmoxer import ProxmoxAPI

proxmox = ProxmoxAPI('192.168.2.51', user='raulunzue@pve',

                     password='CONTRASEÑA', verify_ssl=False)

for vm in proxmox.cluster.resources.get(type='vm'):

    print("{0}. {1} =&gt; {2}" .format(vm['vmid'], vm['name'], vm['status']))

proxmox = ProxmoxAPI('192.168.2.51', user='raulunzue@pve',

password='CONTRASEÑA', verify_ssl=False)

for vm in proxmox.cluster.resources.get(type='vm'):

print("{0}. {1} => {2}" .format(vm['vmid'], vm['name'], vm['status']))

Para poder lanzarlo tenemos que darle permisos de ejecución al fichero:

[root@TERRAFORM ~]# chmod +x proxmoxer-getnodes.py

Y para lanzarlo ejecutamos:

[root@TERRAFORM ~]# python proxmoxer-getnodes.py

117. ESX702 => stopped

102. CITRIXDC01 => running

116. ESX703 => stopped

103. KUBERNETES00 => stopped

100. CITRIXVDA01 => running

114. ESX701 => stopped

101. BROKER => stopped

112. SOPHOS01 => stopped

107. RDS => stopped

106. NEGUAD01 => running

110. KUBERNETES01 => running

109. KBMASTER => running

113. KBMASTER02 => stopped

108. RDS02 => stopped

105. GUACAMOLE => running

104. TERRAFORM => running

111. KUBERNETES02 => running