2019-02-20

[limnh]

Issues/Questions:

Timebox to ~1 hour, start time ~8:30amPDT

1. List/find users in RabbitMQ

2. Create a user in RabbitMQ

• What version are we running?

• Does my command work for the version of rabbit we're running?

3. How do I make positive aspects of my apprentice engineering experience reproducible?

4. define all aspects of rabbitmqctl set_permissions -p / datadog "^aliveness-test$" "^amq\.default$" ".*"

5. set same permissions for atlas vhost that we did for the default vhost

Solutions:

1. Users: atlas [administrator] guest [administrator]

• looked up rabbitmqctl here, used the help command on -l and found list_users

• ssh'd into the rabbitmq node, followed the commands above and received the input for 1.

2. using the list from #1, I was also able to find the add_user command, which is formatted like sudo rabbitmqctl add_user <username> <password>

• Version 3.6.10 relevant stack overflow ticket

• We also have the ability to delete users, change passwords, add user tags, or authenticate users (I'm not sure how yet). Not sure any of this is necessary, but it's good to know it exists.

3. Started writing up the Apprentice Engineer Outline

4. Definitions:

   • set_permissions - sets user permissions
   • -p / - chosen default vhost
   • datadog - name of the user
   • "^aliveness-test$" is the conf. A regular expression matching resource names for which the user is granted configure permissions.
   • Will configure permissions on resources that include ^aliveness-test$
   • The conf operations create or destroy resources, or alter their behaviour.
   • Aliveness-Test - Declares a test queue, then publishes and consumes a message. Intended for use by monitoring tools. If everything is working correctly, will return HTTP status 200 with body: {"status":"ok"}
   • "^amq\.default$" The regular expression ^$, i.e. matching nothing but the empty string, covers all resources and effectively stops the user from performing any operation. Standard AMQP resource names are prefixed with amq.
   • amq\.default$' gives a user access to the default exchange.
   • In the write portion of the command.
   • .* - gives write and read permissions on all resources

5. ran the same commands for atlas vhost that we did in the previous step for the default vhost...and I think it's working??? 🤷🏻‍♀️

[limnh]

First thought of the day: it is an good day because I can google stuff and actually find relevant information 🎉