dellemc.os9/roles/os9_prefix_list

Prefix-list role

This role facilitates the configuration of a prefix-list. It supports the configuration of an IP prefix-list, and assigns the prefix-list to line terminals. This role is abstracted for Dell EMC PowerSwitch platforms running Dell EMC OS9.

The prefix-list role requires an SSH connection for connectivity to a Dell EMC OS9 device. You can use any of the built-in OS connection variables.

Role variables

• Role is abstracted using the ansible_network_os variable that can take dellemc.os9.os9 as the value
• If os9_cfg_generate set to true, the variable generates the role configuration commands in a file
• Any role variable with a corresponding state variable set to absent negates the configuration of that variable
• Setting an empty value for any variable negates the corresponding configuration
• Variables and values are case-sensitive

os9_prefix_list keys

Key	Type	Description	Support
type	string (required): ipv4,ipv6	Configures an L3 (IPv4/IPv6) prefix-list	os9
name	string (required)	Configures the prefix-list name	os9
description	string	Configures the prefix-list description	os9
entries	list	Configures rules in the prefix-list (see seqlist.*)	os9
entries.number	int (required)	Specifies the sequence number of the prefix-list rule	os9
entries.permit	boolean (required): true,false	Specifies the rule to permit packets if set to true, and specifies to reject packets if set to false	os9
entries.net_num	string (required)	Specifies the network number	os9
entries.mask	string (required)	Specifies the mask	os9
entries.condition_list	list	Configures conditions to filter packets (see condition_list.*)	os9
condition_list.condition	list	Specifies the condition to filter packets from the source address	os9
condition_list.prelen	string (required)	Specifies the allowed prefix length	os9
entries.state	string: absent,present*	Deletes the rule from the prefix-list if set to absent	os9
state	string: absent,present*	Deletes the prefix-list if set to absent	os9

NOTE: Asterisk (*) denotes the default value if none is specified.

Connection variables

Ansible Dell EMC network roles require connection information to establish communication with the nodes in your inventory. This information can exist in the Ansible group_vars or host_vars directories, or inventory or in the playbook itself.

Key	Required	Choices	Description
ansible_host	yes		Specifies the hostname or address for connecting to the remote device over the specified transport
ansible_port	no		Specifies the port used to build the connection to the remote device; if value is unspecified, the ANSIBLE_REMOTE_PORT option is used; it defaults to 22
ansible_ssh_user	no		Specifies the username that authenticates the CLI login for the connection to the remote device; if value is unspecified, the ANSIBLE_REMOTE_USER environment variable value is used
ansible_ssh_pass	no		Specifies the password that authenticates the connection to the remote device
ansible_become	no	yes, no*	Instructs the module to enter privileged mode on the remote device before sending any commands; if value is unspecified, the ANSIBLE_BECOME environment variable value is used, and the device attempts to execute all commands in non-privileged mode
ansible_become_method	no	enable, sudo*	Instructs the module to allow the become method to be specified for handling privilege escalation; if value is unspecified, the ANSIBLE_BECOME_METHOD environment variable value is used
ansible_become_pass	no		Specifies the password to use if required to enter privileged mode on the remote device; if ansible_become is set to no this key is not applicable
ansible_network_os	yes	os9, null*	Loads the correct terminal and cliconf plugins to communicate with the remote device

NOTE: Asterisk (*) denotes the default value if none is specified.

Example playbook

This example uses the os9_prefix_list role to configure prefix_list for both IPv4 and IPv6. It creates a hosts file with the switch details and corresponding variables. The hosts file should define the ansible_network_os variable with corresponding Dell EMC OS9 name.

When os9_cfg_generate is set to true, the variable generates the configuration commands as a .part file in build_dir path. By default, the variable is set to false. It writes a simple playbook that only references the os9_prefix_list role.

Sample hosts file

leaf1 ansible_host= <ip_address> 

Sample host_vars/leaf1

hostname: leaf1
ansible_become: yes
ansible_become_method: xxxxx
ansible_become_pass: xxxxx
ansible_ssh_user: xxxxx
ansible_ssh_pass: xxxxx
ansible_network_os: dellemc.os9.os9
build_dir: ../temp/os9
os9_prefix_list:
  - type: ipv4
    name: spine-leaf
    description: Redistribute loopback and leaf networks 
    entries:
      - number: 5
        permit: true
        net_num: 10.0.0.0
        mask: 23
        condition_list:
          - condition: ge
            prelen: 32
      - number: 19
        permit: true
        net_num: 20.0.0.0
        mask: 16
        condition_list:
          - condition: ge
            prelen: 17
          - condition: le
            prelen: 18
        state: present
     state: present

Simple playbook to setup system — leaf.yaml

- hosts: leaf1
  roles:
     - dellemc.os9.os9_prefix_list

Run

ansible-playbook -i hosts leaf.yaml

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