From c0037f946c24eb5066da698f77ba8507a6cefb67 Mon Sep 17 00:00:00 2001
From: Vlad R <vlad.raducanu@dnaclab.net>
Date: Sat, 17 Dec 2022 00:17:36 +0000
Subject: [PATCH] POC prefix list loader tool. Reads from CSV and loads into
 IOSXE + assigns to route-map

---
 ios_devices/prefix_list.csv        |  7 ++++
 ios_devices/prefix_list.yml        | 12 -------
 ios_devices/prefix_list_update.yml | 51 +++++++++++++++++++-----------
 3 files changed, 39 insertions(+), 31 deletions(-)
 create mode 100644 ios_devices/prefix_list.csv
 delete mode 100644 ios_devices/prefix_list.yml

diff --git a/ios_devices/prefix_list.csv b/ios_devices/prefix_list.csv
new file mode 100644
index 0000000..bcdcee2
--- /dev/null
+++ b/ios_devices/prefix_list.csv
@@ -0,0 +1,7 @@
+Site,Description,SequenceNo,Prefix
+site1,desc1,10,1.1.1.1/32
+site2,desc2,20,2.2.2.2/32
+site3,desc3,30,3.3.3.3/32
+site5,Some text here,40,5.5.5.5/32
+new_site1,aaaaaa,50,6.6.6.6/32
+oooo_site,zzzzzz,60,7.7.7.7/32
\ No newline at end of file
diff --git a/ios_devices/prefix_list.yml b/ios_devices/prefix_list.yml
deleted file mode 100644
index 5f228da..0000000
--- a/ios_devices/prefix_list.yml
+++ /dev/null
@@ -1,12 +0,0 @@
----
-prefixes:
-  - prefix: 1.1.1.1/32
-    sequence: 5
-    site_name: site_1
-    site_desc: some_desc
-  - prefix: 1.1.1.2/32
-    sequence: 10
-  - prefix: 1.1.1.4/32
-    sequence: 15
-  - prefix: 1.2.3.4/32
-    sequence: 20
diff --git a/ios_devices/prefix_list_update.yml b/ios_devices/prefix_list_update.yml
index 5773062..29cb1de 100644
--- a/ios_devices/prefix_list_update.yml
+++ b/ios_devices/prefix_list_update.yml
@@ -5,37 +5,50 @@
   connection: network_cli
   roles:
   - common
-  vars_files:
-    - ./prefix_list.yml
   tasks:
 
-    - name: Collect current prefix list
-      cisco.ios.ios_prefix_lists:
-        config:
-        state: gathered
-      register: result
+    # Read the CSV file and return a list of dicts with column names as keys
+    - name: Read CSV file with prefixes information
+      read_csv:
+        path: prefixes_list.csv
+      register: prefix_list
+      delegate_to: localhost
 
-    - name: Print current prefix list information
+    - name: Get current prefix lists config
+      cisco.ios.ios_command:
+        commands: show run | i ip prefix-list
+      register: config_before
+
+    - name: Print current prefix lists config
       debug:
-        var: result.gathered
+        msg: "{{ config_before.stdout_lines }}"
 
-    - name: Validate new prefix list
+    - name: Apply new prefix lists
       cisco.ios.ios_prefix_lists:
         config:
           - afi: ipv4
             prefix_lists:
-              - name: MIGRATED_SITE_SUBNETS-DUBLIN
-                description: SOME_DESCRIPTION-DUBLIN
+              - name: "{{ item.Site }}"
+                description: "{{ item.Description }}"
                 entries:
                   - action: permit
-                    prefix: "{{ item.prefix }}"
-                    sequence: "{{ item.sequence | int }}"
+                    prefix: "{{ item.Prefix }}"
+                    sequence: 10
         state: merged
-      loop: "{{ prefixes }}"
-      register: new_prefix_list
+      loop: "{{ prefix_list.list }}"
 
-    - name: Display new prefix list
+    - name: Get updated prefix lists config
+      cisco.ios.ios_command:
+        commands: show run | i ip prefix-list
+      register: config_after
+
+    - name: Print updated prefix lists config
       debug:
-        var: "{{item.rendered}}"
-      loop: "{{ new_prefix_list.results }}"
+        msg: "{{ config_after.stdout_lines }}"
 
+    - name: Update target route map
+      cisco.ios.ios_config:
+        lines:
+          - "route-map TEST_MAP permit {{ item.SequenceNo }}"
+          - " match ip next-hop prefix-list {{ item.Site }}"
+      loop: "{{ prefix_list.list }}"