My network deploys. How about yours? EOS APIs. Andrei Dvornic

Transcription

1 My network deploys itself How about yours? EOS APIs Andrei Dvornic 1

2 EOS fundamentals Standard Linux kernel Unique multi-process state sharing architecture that separates networking state from the processing itself ExtensibleOS Linux Kernel Data Plane 2

3 My switch is a Linux server! Arista#bash Arista Networks EOS shell [admin@localhost ~]$ uname -rpo Ar EOS4102 x86_64 GNU/Linux 3

4 EOS built-in extensibility /mnt/flash/rc.eos executed during the first phase of EOS boot process CLI Scheduler (config)# # schedule myscript interval 60 max- log- files 3 command / mnt/flash/myscript Event Manager (config)# event-handler mydaemon (config-event-handler)# action bash /usr/bin/immortalize -- daemonize /mnt/flash/mydaemon (config-event-handler)# trigger onboot Process manager (config)# daemon MYDAEMON (config-daemon-mydaemon)# command /mnt/flash/mydaemon 4

5 XMPP veos-l2#xmpp send veos-l1 command show version message from user: Arista veos Hardware version: Serial number: System MAC address: f5.b860 Software image version: F.1 (engineering build) Architecture: i386 Internal build version: F.1 Internal build ID: 607a8116-2de1-4def-8ab9-9cccbc9da7e9 Uptime: Total memory: Free memory: 4 hours and 16 minutes kb kb 5

6 Command API HTTP request JSON HTTP response Nginx EOS 6

7 Command API localhost(config)# management api http- commands localhost(config- mgmt- api- http- cmds)# no shutdown localhost# show management api http- commands Enabled: Yes HTTPS server: running, set to use port 443 HTTP server: shutdown, set to use port Python example (more on GitHub/EOS Central) from jsonrpclib import Server switch = Server( api ) response = switch.runcmds( 1, [ show version ] ) print The system MAC addess is %s % \ response[ 0 ][ systemmacaddress ] print Switch has %d bytes of memory free! % \ response[ 0 ][ memfree ] 7

8 pyeapi eapish Ansible pyeapi eapi import pyeapi pyeapi.connect_to('veos01') vlans = node.api('vlans') 10, 'trunk_groups': []}} vlans.create(100) vlans.getall() {'1': {'state': 'active', 'name': 'default', 'vlan_id': 1, 'trunk_groups': []}, '10': {'state': 'active', 'name': 'VLAN0010', 'vlan_id': vlans.set_name(100, 'foo') 8

9 eapish eapi from bash eapish Ansible pyeapi eapi $ eapish show version --hosts veos01 $ eapish show version, show hostname --hosts veos01 $ eapish show version --hosts veos01,veos02,veos03 $ eapish vlan 100, name TEST_VLAN --hosts veos01,veos02,veos03 --config 9

10 Arista role for Ansible eapish Ansible pyeapi eapi $ ansible-playbook add_vlan.yml PLAY [example] **************************************************************** TASK: [Configure EOS VLAN resources] ****************************************** ok: [s7152] => (item={'name': 'TEST_VLAN_100', 'vlanid': 100}) PLAY RECAP ******************************************************************** s7152 : ok=1 changed=0 unreachable=0 failed=0 10

11 What else? eapish Ansible Puppet Splunk Log insight pyeapi rbeapi telemetry eapi 11

12 Reactive eapi EOS stream data Google Protocol Buffers VM react via eapi Nginx 12

13 Reactive eapi EOS stream data Google Protocol Buffers VM react via eapi Nginx 13

14 Sim API HTTP request JSON HTTP response Nginx SimAPI EOS { "cmds" : { "show my version": { "result" : { "version" : 1 } delay : 3 }, "show port-channel detail": { "plugin" : "show_port_channel_detail", 14

15 EOS SDK - Unleash the full power of EOS Linux Kernel Data Plane 15

16 Automating deployment Zero Touch Provisioning - Switch is plugged in and connected - Because it doesn t have a startup-config yet, will enter ZTP mode: 1. DHCP query is sent on all interfaces with a link 2. the server returns an IP address (to-be-configured on the receiving interface), along with the address of the config/ bootstrap script (DHCP - option 66,67) 3. switch configures IP address and retrieves config/bootstrap script 4. switch applies config/runs bootstrap script 5. switch reboots ZTP Server APIs enables extensible node provisioning 16

17 QUESTIONS? 17