network_cli – Use network_cli to run command on network appliances

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< Connection PluginsAnsible/docs/2.9/plugins/connection/network cli


network_cli – Use network_cli to run command on network appliances

Synopsis

  • This connection plugin provides a connection to remote devices over the SSH and implements a CLI shell. This connection plugin is typically used by network devices for sending and receiving CLi commands to network devices.

Parameters

Parameter Choices/Defaults Configuration Comments

become

boolean

Default:

"no"

ini entries: [privilege_escalation]become = no


env:ANSIBLE_BECOME

var: ansible_become

The become option will instruct the CLI session to attempt privilege escalation on platforms that support it. Normally this means transitioning from user mode to enable mode in the CLI session. If become is set to True and the remote device does not support privilege escalation or the privilege has already been elevated, then this option is silently ignored.

Can be configured from the CLI via the --become or -b options.

become_method

-

Default:

"sudo"

ini entries: [privilege_escalation]become_method = sudo


env:ANSIBLE_BECOME_METHOD

var: ansible_become_method

This option allows the become method to be specified in for handling privilege escalation. Typically the become_method value is set to enable but could be defined as other values.

host

-

Default:

"inventory_hostname"

var: ansible_host

Specifies the remote device FQDN or IP address to establish the SSH connection to.

host_key_auto_add

boolean

Default:

"no"

ini entries: [paramiko_connection]host_key_auto_add = no


env:ANSIBLE_HOST_KEY_AUTO_ADD

By default, Ansible will prompt the user before adding SSH keys to the known hosts file. Since persistent connections such as network_cli run in background processes, the user will never be prompted. By enabling this option, unknown host keys will automatically be added to the known hosts file.

Be sure to fully understand the security implications of enabling this option on production systems as it could create a security vulnerability.

network_cli_retries

integer

added in 2.9

Default:

3

ini entries: [persistent_connection]network_cli_retries = 3


env:ANSIBLE_NETWORK_CLI_RETRIES

var: ansible_network_cli_retries

Number of attempts to connect to remote host. The delay time between the retires increases after every attempt by power of 2 in seconds till either the maximum attempts are exhausted or any of the persistent_command_timeout or persistent_connect_timeout timers are triggered.

network_os

-

var: ansible_network_os

Configures the device platform network operating system. This value is used to load the correct terminal and cliconf plugins to communicate with the remote device.

password

-

var: ansible_password

var: ansible_ssh_pass

var: ansible_ssh_password

Configures the user password used to authenticate to the remote device when first establishing the SSH connection.

persistent_buffer_read_timeout

float

Default:

0.1

ini entries: [persistent_connection]buffer_read_timeout = 0.1


env:ANSIBLE_PERSISTENT_BUFFER_READ_TIMEOUT

var: ansible_buffer_read_timeout

Configures, in seconds, the amount of time to wait for the data to be read from Paramiko channel after the command prompt is matched. This timeout value ensures that command prompt matched is correct and there is no more data left to be received from remote host.

persistent_command_timeout

integer

Default:

30

ini entries: [persistent_connection]command_timeout = 30


env:ANSIBLE_PERSISTENT_COMMAND_TIMEOUT

var: ansible_command_timeout

Configures, in seconds, the amount of time to wait for a command to return from the remote device. If this timer is exceeded before the command returns, the connection plugin will raise an exception and close.

persistent_connect_timeout

integer

Default:

30

ini entries: [persistent_connection]connect_timeout = 30


env:ANSIBLE_PERSISTENT_CONNECT_TIMEOUT

var: ansible_connect_timeout

Configures, in seconds, the amount of time to wait when trying to initially establish a persistent connection. If this value expires before the connection to the remote device is completed, the connection will fail.

persistent_log_messages

boolean

Default:

"no"

ini entries: [persistent_connection]log_messages = no


env:ANSIBLE_PERSISTENT_LOG_MESSAGES

var: ansible_persistent_log_messages

This flag will enable logging the command executed and response received from target device in the ansible log file. For this option to work 'log_path' ansible configuration option is required to be set to a file path with write access.

Be sure to fully understand the security implications of enabling this option as it could create a security vulnerability by logging sensitive information in log file.

port

integer

Default:

22

ini entries: [defaults]remote_port = 22


env:ANSIBLE_REMOTE_PORT

var: ansible_port

Specifies the port on the remote device that listens for connections when establishing the SSH connection.

private_key_file

-

ini entries: [defaults]private_key_file = VALUE


env:ANSIBLE_PRIVATE_KEY_FILE

var: ansible_private_key_file

The private SSH key or certificate file used to authenticate to the remote device when first establishing the SSH connection.

remote_user

-

ini entries: [defaults]remote_user = VALUE


env:ANSIBLE_REMOTE_USER

var: ansible_user

The username used to authenticate to the remote device when the SSH connection is first established. If the remote_user is not specified, the connection will use the username of the logged in user.

Can be configured from the CLI via the --user or -u options.

terminal_inital_prompt_newline

boolean

added in 2.9

Default:

"yes"

var: ansible_terminal_initial_prompt_newline

This boolean flag, that when set to True will send newline in the response if any of values in terminal_initial_prompt is matched.

terminal_initial_answer

list

added in 2.9

var: ansible_terminal_initial_answer

The answer to reply with if the terminal_initial_prompt is matched. The value can be a single answer or a list of answers for multiple terminal_initial_prompt. In case the login menu has multiple prompts the sequence of the prompt and excepted answer should be in same order and the value of terminal_prompt_checkall should be set to True if all the values in terminal_initial_prompt are expected to be matched and set to False if any one login prompt is to be matched.

terminal_initial_prompt

list

added in 2.9

var: ansible_terminal_initial_prompt

A single regex pattern or a sequence of patterns to evaluate the expected prompt at the time of initial login to the remote host.

terminal_initial_prompt_checkall

boolean

added in 2.9

Default:

"no"

var: ansible_terminal_initial_prompt_checkall

By default the value is set to False and any one of the prompts mentioned in terminal_initial_prompt option is matched it won't check for other prompts. When set to True it will check for all the prompts mentioned in terminal_initial_prompt option in the given order and all the prompts should be received from remote host if not it will result in timeout.

terminal_stderr_re

list / elements=dictionary

added in 2.9

var: ansible_terminal_stderr_re

This option provides the regex pattern and optional flags to match the error string from the received response chunk. This option accepts pattern and flags keys. The value of pattern is a python regex pattern to match the response and the value of flags is the value accepted by flags argument of re.compile python method to control the way regex is matched with the response, for example re.I.

terminal_stdout_re

list / elements=dictionary

added in 2.9

var: ansible_terminal_stdout_re

A single regex pattern or a sequence of patterns along with optional flags to match the command prompt from the received response chunk. This option accepts pattern and flags keys. The value of pattern is a python regex pattern to match the response and the value of flags is the value accepted by flags argument of re.compile python method to control the way regex is matched with the response, for example re.I.

timeout

integer

Default:

120

Sets the connection time, in seconds, for communicating with the remote device. This timeout is used as the default timeout value for commands when issuing a command to the network CLI. If the command does not return in timeout seconds, an error is generated.



Status

Authors

  • Ansible Networking Team

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Hint

Configuration entries for each entry type have a low to high priority order. For example, a variable that is lower in the list will override a variable that is higher up.


© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.9/plugins/connection/network_cli.html


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