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Generating and applying intent-based Network configuration from Hedera

Project description

perseus

Network Device Configuration from Hedera Hashgraph Intent

Setting up guestshell

Enable guestshell

switch# guestshell enable

Wait until the guestshell becomes active

Resize guestshell diskspace

switch# conf t
switch(config)# guestshell resize rootfs 2000
switch(config)# guestshell resize memory 2688
switch(config)# guesthshell reboot

Update DNS

[cisco@guestshell ~] $ sudo vi /etc/resolv.conf
nameserver <dns server IP address>
domain <domain that matches NX-OS configured domain>

Install Python 3.8

[cisco@guestshell ~] $ sudo yum -y install epel-release
[cisco@guestshell ~] $ sudo yum -y update
[cisco@guestshell ~] $ sudo yum -y groupinstall "Development Tools"
[cisco@guestshell ~] $ sudo yum -y install openssl-devel bzip2-devel libffi-devel xz-devel

Confirm GCC

[cisco@guestshell ~] $ gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)

Install Python 3.8.12

[cisco@guestshell ~] $ sudo yum -y install wget
[cisco@guestshell ~] $ wget https://www.python.org/ftp/python/3.8.12/Python-3.8.12.tgz
[cisco@guestshell ~] $ tar xvf Python-3.8.12.tgz
[cisco@guestshell ~] $ cd Python-3.8*/
[cisco@guestshell ~] $ ./configure --enable-optimizations
[cisco@guestshell ~] $ sudo make altinstall

Confirm install

[cisco@guestshell ~]$ python3.8 --version
Python 3.8.12
[cisco@guestshell ~] $ rm -rf Python-3.8*/
[cisco@guestshell ~] $ rm Python-3.8.12.tgz

Add Python to the Path

Cleanup

[cisco@guestshell ~] $ rm -rf Python-3.8.12
[cisco@guestshell ~] $ rm Python-3.8.12.tgz

Upgrade pip

[cisco@guestshell ~] $ /usr/bin/python -m pip install --upgrade pip

Install Java JDK

[cisco@guestshell ~] $ curl https://download.oracle.com/java/18/latest/jdk-18_linux-x64_bin.rpm --output jdk-18_linux-x64_bin.rpm
[cisco@guestshell ~] $ sudo rpm -Uvh jdk-18_linux-x64_bin.rpm
[cisco@guestshell ~] $ cat <<EOF | sudo tee /etc/profile.d/jdk18.sh
export JAVA_HOME=/usr/java/default
export PATH=\$PATH:\$JAVA_HOME/bin
EOF
[cisco@guestshell ~] $ source /etc/profile.d/jdk18.sh
[cisco@guestshell ~] $ rm jdk-18_linux-x64_bin.rpm

Verify Java

[cisco@guestshell ~] $ java -version
java version "18.0.1.1" 2022-04-22
Java(TM) SE Runtime Environment (build 18.0.1.1+2-6)
Java HotSpot(TM) 64-Bit Server VM (build 18.0.1.1+2-6, mixed mode, sharing)

Setup Network3 Perseus

Install Network3_Perseus

pip install the package

[cisco@guestshell ~] $ python3.8 -m pip install network3_perseus

setup call_clid.py

[cisco@guestshell ~] $ sudo vi call_clid.py
import sys
from cli import *

if sys.argv[1] == "show running-config":
  output = cli(sys.argv[1])
else:
  output = clid(sys.argv[1])
print(output)
:wq

setup cli_configure.py

[cisco@guestshell ~] $ sudo vi cli_configure.py
import sys
from cli import *
cli(sys.argv[1])
:wq

Configure Network3 Medusa

Configure Java

[cisco@guestshell ~] $ OPERATOR_ID={ Hedera account id }
[cisco@guestshell ~] $ OPERATOR_PRIVATE_KEY={ Hedera private key }

(Optional)

Export your Webex Room and Webex token to send alerts to Webex when Network3 Medusa writes data to Hedera export WEBEX_ROOM="Webex room id" export WEBEX_TOKEN="Webex token id"

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