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Slack-NSO

published

Small PoC to control NSO via Slack.

slack-nso

Example

Slack

slack

Router

RP/0/RP0/CPU0:mrstn-5501-1.cisco.com# sh run router static 
  
Wed Jan  3 19:47:48.431 UTC
router static
 address-family ipv4 unicast
  192.16.0.0/16 10.0.0.1
 !
 address-family ipv6 unicast
  ::/0 2001:420:2cff:1204::1
  2001:db8::/32 2001:cafe:f00::1
 !
!

Compiling protocol buffers

cd proto
protoc --go_out=plugins=grpc:. comm.proto

Generating SSL Certificates

  • Local testing
openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 -nodes -subj '/CN=localhost'
  • Online testing

CN needs to be replaced with your gRPC Server.

openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 -nodes -subj '/CN=grpc.nleiva.com'

Generating binaries for Client and Server

  • gRPC client: go build -o cli client/main.go
  • gRPC server: go build -o serv server/main.go

Enviroment variables required

  • SLACK_TOKEN
  • NSO_SERVER
  • NSO_DEVICE
  • NSO_USER
  • NSO_PASSWORD

Running in Docker Containers

Setup your enviroment variables in env.client and env.server.

  • Client
docker build -t client -f ./server/Dockerfile .
docker run -t --rm --name my-client --env-file ./env.client client
  • Server
docker build -t server -f ./server/Dockerfile .
docker run -t --rm --name my-server --env-file ./env.server server

Just in case...

docker build

--tag , -t    Name and optionally a tag in the ‘name:tag’ format
--file , -f   Name of the Dockerfile (Default is ‘PATH/Dockerfile’)

docker run

--tty , -t    Allocate a pseudo-TTY
--rm          Automatically remove the container when it exits
--name        Assign a name to the container
--env-file    Read in a file of environment variables

Example

The Server is a 28.9MB Container.

$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
a16c6080fc73        server              "/serv"             4 minutes ago       Up 4 minutes        50051/tcp           my-server
$ docker images
REPOSITORY               TAG                 IMAGE ID            CREATED             SIZE
server                   latest              8149f0b8ed06        17 minutes ago      28.9MB
...