NATS-AB

Compliance tool to check 2 NATS users: NATS_USER - according GitOps approach this user not allowed to create JetStream Stream or Consumers

SLO:

• NATS_USER - according GitOps approach this user not allowed to create JetStream Stream or Consumers

• NATS_STREAM_USER - this user applicable for create JS as user in GitOps job

• NATS_USER - can send and read messages via JS

Install

download

https://github.com/d7561985/nats-ab/releases

golang

Go 1.16+

go install github.com/d7561985/nats-ab@latest

Go version < 1.16

go get -u github.com/d7561985/nats-ab@latest

Use-cases

mode

To check leaf: put mode = 1 in hub cluster and 2 in leaf.

Note	first create leaf subscriber

replica

Check performance with different replica value in cluster

threads

Examine number of threads (services) producers or consumer.

How to use

CLI support help command where you will find everything suitable:

NAME:
   <help name> - run compliance scenario tests

USAGE:
   <usage text>

DESCRIPTION:
   <description>

OPTIONS:
   --mode value                          Some scenarios required 2 or more applications launches (between leaf nodes), value: 0: send and receive, 1: only send, 2: only receive (default: 0) [$MODE]
   --count value                         messages to publish/receive (default: 1000000) [$MSG_NUM]
   --msgSize value                       messages to publish/receive (default: 128) [$MSG_SIZE]
   --threads value                       consent execution (default: 5) [$THREADS]
   --drainTime value                     wait before clean up after scenario (default: 30s) [$DRAIN_TIME]
   --addr value                          NATS URI list (default: "nats://127.0.0.1:4222") [$NATS_ADDR]
   --replicas value                      stream reapplication usage (default: 1) [$REPLICAS]
   --accUser value, -u value             none sys account user who will send or read messages (default: "client") [$ACC_USER]
   --accUserPassword value, -p value     password for accUser (default: ****) [$ACC_USER_PASSWORD]
   --accAdmin value, -a value            none sys account user admin with no restriction (default: "admin") [$ACC_ADMIN]
   --accAdminPassword value, --ap value  password for accAdmin (default: ****) [$ACC_ADMIN_PASSWORD]
   --sysUser value                       sys account user [$SYS_USER]
   --sysPassword value                   sysUser password (default: ****) [$SYS_USER_PASSWORD]
   --help, -h                            show help (default: false)

TEST

Scenario #1

Positive test.

1. NATS_STREAM_USER create stream and consumer with REPLICAS num.

2. NATS_USER send message PUSH_NUM times

3. NATS_USER tries to reed them.