Basic Usage¶

Proxmoxer is easy to use. After importing the library and creating an instance, interacting with the Proxmox service is simple and follows the API documentation.

Importing and Creating an Instance¶

To use Proxmoxer, the library must be imported and a ProxmoxerAPI instance created. This instance takes care of all the authentication, abstraction, and de-serialization of the API calls.

from proxmoxer import ProxmoxAPI

proxmox = ProxmoxAPI('<host_ip_or_domain>', user='<username>@<realm>', password='<password>', verify_ssl=False)

Switching Services or Backends¶

This will default to connecting to a 'PVE' service using the https backend. To change these defaults, specify a service or backend parameter of a supported service and/or a supported backend.

e.g. proxmox = ProxmoxAPI('<host_ip_or_domain>', user='<username>', backend='openssh', service='pmg')

Changing Ports¶

Proxmoxer (when using the https backend) will use the default port for the selected service to connect to the service. If you need to connect on a different port, adding either the port=<port_number> parameter or adding :<port> to the host can be used. A port in the host will override the port parameter.

Making API Calls¶

There are two ways to build API requests: dotted notation and string notation. The format and benefits of each are presented below.

Dotted Notation¶

Dotted notation can be thought of as treating the API call as a collection of dicts. This means that you can specify the API endpoint in a pythonic manner and let proxmoxer take care of converting to what the Proxmox service requires.

Lets say you want to see what users are available and what containers are on the "example-node" node and that prox is a correctly initialized ProxmoxerAPI object (for a PVE service in these examples).

>>> # this is equivalent to https://pve.proxmox.com/pve-docs/api-viewer/index.html#/access/users
>>> prox.access.users.get()
[{'expire': 0, 'realm-type': 'pam', 'enable': 1, 'email': 'admin@example.com', 'userid': 'root@pam'}, {'expire': 0, 'realm-type': 'pve', 'enable': 1, 'userid': 'testing@pve'}]

To add variable values like the names of users or nodes, simply add parentheses to the section before the variable and pass in the string to use (as demonstrated below).

>>> # this is equivalent to https://pve.proxmox.com/pve-docs/api-viewer/index.html#/nodes/{node}/lxc
>>> prox.nodes("example-node").lxc.get()
[{'cpu': 0, 'netin': 2122469071629, 'maxmem': 4294967296, 'diskread': 0, 'name': 'container-a', 'maxdisk': 4831838208, 'pid': 1098784, 'mem': 241815552, 'type': 'lxc', 'diskwrite': 0, 'netout': 573718142259, 'status': 'running', 'disk': 3100377088, 'swap': 0, 'maxswap': 536870912, 'vmid': '100', 'uptime': 7457751, 'cpus': 4},{'cpu': 0, 'netin': 1234, 'maxmem': 1234, 'diskread': 0, 'name': 'container-b', 'maxdisk': 1234, 'pid': 1234, 'mem': 1234, 'type': 'lxc', 'diskwrite': 0, 'netout': 1234, 'status': 'running', 'disk': 1234, 'swap': 0, 'maxswap': 1234, 'vmid': '101', 'uptime': 1234, 'cpus': 4}]

To get all the containers running on all the nodes in a cluster, you can iterate through all the nodes and get the containers running on each.

>>> # get the list of all the nodes available from the connected node
>>> print(proxmox.nodes.get())
[{'type': 'node', 'node': 'example-node', 'ssl_fingerprint': '63:80:22:...:0D:12', 'id': 'node/example-node', 'status': 'unknown'}]
>>> # use the list of nodes to iterate through each and print the containers and their status
>>> for pve_node in proxmox.nodes.get():
...     print("{0}:".format(pve_node['node']))
...     for container in proxmox.nodes(pve_node['node']).lxc.get():
...         print("\t{0}. {1} => {2}".format(container['vmid'], container['name'], container['status']))
... 
example-node:
        100. container-a => running
        101. container-b => running
        105. container-c => running

String Notation¶

String notation allows the developer to specify the exact URL path to be used for the API call. This puts more responsibility on the developer to correctly format the path but gives ultimate configurability. The dotted notation examples are displayed below converted into string notation.

Lets say you want to see what users are available and what containers are on the "example-node" node and that prox is a correctly initialized ProxmoxerAPI object (for a PVE service in these examples).

>>> # this is equivalent to https://pve.proxmox.com/pve-docs/api-viewer/index.html#/access/users
>>> prox("access/users").get()
[{'expire': 0, 'realm-type': 'pam', 'enable': 1, 'email': 'admin@example.com', 'userid': 'root@pam'}, {'expire': 0, 'realm-type': 'pve', 'enable': 1, 'userid': 'testing@pve'}]

To add variable values like the names of users or nodes, simply add parentheses to the section before the variable and pass in the string to use (as demonstrated below).

>>> # this is equivalent to https://pve.proxmox.com/pve-docs/api-viewer/index.html#/nodes/{node}/lxc
>>> prox("nodes/example-node/lxc").get()
[{'cpu': 0, 'netin': 2122469071629, 'maxmem': 4294967296, 'diskread': 0, 'name': 'container-a', 'maxdisk': 4831838208, 'pid': 1098784, 'mem': 241815552, 'type': 'lxc', 'diskwrite': 0, 'netout': 573718142259, 'status': 'running', 'disk': 3100377088, 'swap': 0, 'maxswap': 536870912, 'vmid': '100', 'uptime': 7457751, 'cpus': 4},{'cpu': 0, 'netin': 1234, 'maxmem': 1234, 'diskread': 0, 'name': 'container-b', 'maxdisk': 1234, 'pid': 1234, 'mem': 1234, 'type': 'lxc', 'diskwrite': 0, 'netout': 1234, 'status': 'running', 'disk': 1234, 'swap': 0, 'maxswap': 1234, 'vmid': '101', 'uptime': 1234, 'cpus': 4}]

To get all the containers running on all the nodes in a cluster, you can iterate through all the nodes and get the containers running on each.

>>> # get the list of all the nodes available from the connected node
>>> print(proxmox("nodes").get())
[{'type': 'node', 'node': 'example-node', 'ssl_fingerprint': '63:80:22:...:0D:12', 'id': 'node/example-node', 'status': 'unknown'}]
>>> # use the list of nodes to iterate through each and print the containers and their status
>>> for pve_node in proxmox.nodes.get():
...     print("{0}:".format(pve_node['node']))
...     for container in proxmox("nodes/{0}/lxc".format(pve_node['node'])).get():
...         print("\t{0}. {1} => {2}".format(container['vmid'], container['name'], container['status']))
... 
example-node:
        100. container-a => running
        101. container-b => running
        105. container-c => running

Combining Dotted and String Notation¶

There are a few situations where combining the notations is required or more effective.

Variable Data¶

As mentioned in the Dotted Notation section, there are times when string notation is needed in combination with dotted notation.

Invalid Names In Python¶

Some endpoints in the Proxmox APIs include a hyphen ("-"). When using dotted notation, python interprets this as subtraction rather than a hyphen in the name. In this case, string notation can be used for that section of the path and using dotted notation for the rest of the path.

For example, if you want to check the status of a command running in a VM, you would need to do the following

>>> # using https://pve.proxmox.com/pve-docs/api-viewer/index.html#/nodes/{node}/qemu/{vmid}/agent/exec-status
>>> prox.nodes("example-node").qemu("103").agent("exec").post(command="echo hello")
{'pid': 5413}
>>> prox.nodes("example-node").qemu("103").agent("exec-status").get(pid=5413)
{'out-data': 'hello\n', 'exited': 1, 'exitcode': 0}

Examples¶

The following are all different ways of calling the same API path and will return the same result.

prox.nodes(<node_name>).lxc.get()
prox.nodes(<node_name>).get('lxc')
prox.get('nodes/%s/lxc' % <node_name>)
prox.get('nodes', <node_name>, 'lxc')
prox('nodes')(<node_name>).lxc.get()
prox(['nodes', <node_name>]).lxc.get()
prox(['nodes', <node_name>]).get('lxc')
prox('nodes')(<node_name>)('lxc').get()