Shikugawa

generate large json

import random
import string
import json

def get_random_string():
    r = random.randint(1,100)
    letters = string.ascii_lowercase
    result_str = ''.join(random.choice(letters) for i in range(r))

Shikugawa

int net0
  ipv6 nd ra-interval 3
  no ipv6 nd suppress-ra
!

int net1
  ipv6 nd ra-interval 3
  no ipv6 nd suppress-ra
!

Shikugawa

package main

import (
	"flag"
	"fmt"
	"math/rand"
	"net"
	"net/http"
	"net/rpc"
	"strings"

Shikugawa

FROM ubuntu:18.04

ARG DEBIAN_FRONTEND=noninteractive
ENV APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=DontWarn
# Update Ubuntu Software repository
RUN apt update && \
    apt-get install -y \
      git autoconf automake libtool make libreadline-dev texinfo \
      pkg-config libpam0g-dev libjson-c-dev bison flex python3-pip \
      libc-ares-dev python3-dev python3-sphinx \

Shikugawa

nodes:
- name: R1
  image: frr-centos8:latest
  docker_run_extra_args: --entrypoint bash
  sysctls:
  - sysctl: net.vrf.strict_mode=1
  - sysctl: net.ipv4.ip_forward=1
  - sysctl: net.ipv4.conf.all.rp_filter=0
  - sysctl: net.ipv4.conf.default.rp_filter=0
  - sysctl: net.ipv6.conf.all.forwarding=1

Shikugawa

preinit:
- cmds:
  - cmd: modprobe vrf

nodes:
- name: R1
  image: nicolaka/netshoot
  docker_run_extra_args: --entrypoint bash
  sysctls:
  - sysctl: net.vrf.strict_mode=1

Shikugawa

nodes:
  - name: R1
    image: slankdev/frr
    interfaces:
      - { name: net0, type: direct, args: C1#net0 }
      - { name: net1, type: direct, args: R2#net1 }
      - { name: net2, type: direct, args: R3#net2 }
  - name: R2
    image: slankdev/frr
    interfaces:

Shikugawa

nodes:
- name: C1
  image: alpine:latest
  interfaces:
  - { name: net1, type: direct, args: CE#net1 }

- name: CE
  image: frrouting/frr:v8.1.0
  docker_run_extra_args: --entrypoint bash
  interfaces:

Shikugawa

make docker-build
kind load docker-image ayamaruyama/markdownviewcontroller:latest

# if we have change of CRD
make install

# deploy controller related resources
make deploy

# restart controller

Shikugawa

# https://gyazo.com/43893dd9d7321e8dc0ddcdda878ea6cd

nodes:
- name: C1
  image: itsthenetwork/alpine-tcpdump:latest
  interfaces:
  - { name: net1, type: direct, args: C2#net1 }

- name: C2
  image: itsthenetwork/alpine-tcpdump:latest