Are there things like Ephemeral Virtual Machines that can be used in CI system?

So I have prepared an Ubuntu-based VM via Packer + Ansible for our team at work. It all works smoothly, Here is the catch, the team wish to do some integration tests in the VM.

AFAIK packer in this case won't be suitable because on succesful runs, packer (with the qemu plugin) will try to generate the a new VM on the test server for me which is not what I want. I want something where I can spin up my VM, push the test dirs into it, trigger them and throw the VM out on successful testing.

The only solution I can think of at the moment is spinning the VM via a bash script with qemu-system-x64 commands and then achieve what I want.

Is there some tool that can integrate well with my GitLabCI system to achieve this ephemeral VM logic?

I thought about Vagrant but I doubt it might be a good solution since I see it more as a development tool.

https://redd.it/12v4gwe
@r_devops

Github actions conditional matrix

Hi all,

Trying to reign in the github actions runners and can't seem to figure out how to do it. Or even if it's possible
Here's a trimmed version of the workflow file

​

name: Build on Pull Request

on:
pull_request:
paths:
- 'path/test1/**'
- 'path/test2/**'
- '.github/workflows/this-file.yaml'

jobs:
build:
runs-on: ubuntu-latest

permissions:
id-token: write
contents: read
pull-requests: write

strategy:
matrix:
env:
- "dev"
- "prod"
dirs:
- dummy
exclude:
- env: ${{ github.base_ref == 'main' && 'dev' || github.base_ref == 'develop' && 'prod' }}



steps:

- name: Build
run: build something
working-directory: ${{ matrix.dirs }}
- name: Validate
run: validate something
working-directory: ${{ matrix.dirs }}

The problem is that if i want to make it more complex for other items I am having trouble understanding how to do it.
For example if i wanted to change the format to


env:
- account: "1234567890"
name: "dev"
- account: "0987654321"
name: "prod"




How can I go about getting the same behaviour. The documentation for [exclusions](https://docs.github.com/en/actions/using-jobs/using-a-matrix-for-your-jobs#excluding-matrix-configurations) is extremely lightweight and deals more with hardcoded values than conditional logic.


trying to add logic with fails with my attempts.

strategy:
matrix:
env:
- account: "1234567890"
name: "dev"
- account: "0987654321"
name: "prod"
dirs:
- dummy
exclude:
- env:
- account: "1234567890"
name: "dev"
if: github.base_ref == 'main'
- env:
- account: "0987654321"
name: "prod"
if: github.base_ref == 'develop'


Any help would be appreciated

https://redd.it/12v5bcm
@r_devops

Nomad agent dev - missing drivers (docker)

Hello,

I'm desperately trying to run ***any*** job with `nomad agent -dev`. I am using nomad `v1.5.3`.

Unfortunately I get something like:

```
2023-04-22T18:12:02+02:00: Task Group "redis-test-web" (failed to place 1 allocation):
* Constraint "missing drivers": 1 nodes excluded by filter
2023-04-22T18:12:02+02:00: Evaluation "949981aa" waiting for additional capacity to place remainder
```

The information I could get was to reboot and/or restart the `docker` service (did not work). I even uninstalled and reinstalled `nomad`, but didn't work either.

So in summary:
* Rebooting didn't work
* My user is in the `docker` group
* Reinstalling `nomad` didn't work/help either

Where can I get more information ? I tried the logs (terminal output) but it didn't really help me.

I am using `archlinux`.

Thank you very much in advance for any help

https://redd.it/12vb0x3
@r_devops

Do you know, or or is it worth knowing, any front-end languages?

I know languages like Python, Bash, etc are useful for DevOps, but what about front-end languages like basic HTML, CSS, Javascript?

https://redd.it/12vd3ni
@r_devops

Observability Getting metrics for an endpoint "when in" a trace of another endpoint

Hi there.

Given I have two apps, A and B, and the controller of one endpoint in A makes a call to an endpoint in B, how can I get a metric of the amount of time the endpoint in B contributes to the latency of the endpoint in A.

Say the controller in A calls 7 times (yes! :( ) the endpoint in B. This endpoint in B is called by other apps as well. How can I know the latency of calling B 7 times introduces into the latency of the controller in A?

https://redd.it/12vg0m4
@r_devops

Finding balance on Enterprise Priorities vs Team level Priorities for new SRE TEAM?

Hello all!

We are forming a new SRE team and looking for some guidance on managing various secondary initiatives I am learning about with this new team. We are a team of 8 with a wide variety of skill sets but new to SRE space outside a few people who have prior experience in this area.


We have the VP saying to increase tech quality, velocity, and reliability enterprise wide.


We are taking over some leftover tools, we can choose our own tooling and have the ability to set enterprise patterns for SRE. We are mostly an Elk shop with some prom and Grafana. We have some stuff that was done before but half baked.


We are meeting with other app development teams and understanding the lay of the land. We have various teams asking us for some one off work or other requests like that. We are still doing support requests for the tools assigned to us and we have a few people that know them but need to get other team members up to speed.


Implementing SRE principles and writing automation to resolve biggest pain points is priority number 1.

**BUT**

What I can't figure out is how to balance the secondary stuff I know is very important as well :

* Increasing user experience within tooling
* Coding standards for team
* Removal of tech debt from tooling we are responsible and inherited?
* Building out proper pipelines for our team and upgrades to the tooling (How far do I take this?)
* Development of documentation around current tooling?
* Moving by hand infra processes into IAC?
* Refactoring previous automation that needs a revamp?

How would you all prioritize this stuff?

https://redd.it/12vi36j
@r_devops

Gitlab Project Automatically Creating Basic TF Project

In order to make a basic TF Template, we have a gitlab repo that has a .sh script that will automatically create a TF project for us and a gitlab pipeline for that project. This gitlab project that creates the projects and pipelines also has its own pipeline

My question is where/how do I run this script? I feel like this is very basic, but I am confused on how exactly to proceed. Do I run it through its own pipeline?

https://redd.it/12vjuew
@r_devops

If im making mistakes every week, should i quit devops ?

Im into this new job 5 months. Before that i have 3 YoE in devops but much less hands on work(especially coding).

This new job (top tier and much bigger system), ive been making very rookie mistakes pretty much everyweek. By mistakes i mean small things like reverting PRs, deployments getting stuck to big things like production outage.
Root cause is because im not fully aware of what im doing or i cant think ahead. (E.g. tested properly on dev but things that would break in prod). Part of it is that i am new, but there are many other new folks who dont have these issue.
Also i am much much slower at writing/reading code. Anyways in easy words, quality of work i deliver is pretty junior.

Worst part is i put a lot of effort in work. Im not kidding i work till midnight quite often and rarely finish work before 8pm. But i still see no improvement. To be really honest, i feel like i dont have the brain for cs or some thing is fundamentally different from other engineers. The feeling of getting no output from putting extensive amount of effort.. feels like i might need to consider switching careers at this point. Also this is happening every single week only to me on the team. Doesnt this mean that i have a problem? Its hard to justify at this point lol. Is this a valid reason to switch careers? Or is this normal

https://redd.it/12vkhi2
@r_devops

Can someone tell me how to fix this issue?

https://stackoverflow.com/questions/62414739/mongodb-authentication-failing-on-accessing-database-while-using-docker

​

Not sure why it doesn't work as intended and I need to create an user manually. This is really mind boggling.

​

What's the easiest way to go about this and what docker-compose and docker configs do you use to set it up? I keep getting Authentication Failed on node.js.

https://redd.it/12vjq9n
@r_devops

error no. 2002 can't connect to mysql server on localhost 10061

My primary OS is windows 10. Inside it, I use a virtual machine, namely vmware workstation pro. And I am using centos 7 minimal on it.

I've successfully installed mysql in centos 7. Now, my goal is to connect my mysql server to "sqlyog" client.

When I try to do it, I get the following error:

error no. 2002 can't connect to mysql server on localhost 10061

I've seen an exact similar issue here(https://faq.webyog.com/content/23/59/en/i-get-error-no-2002-can_t-connect-to-local-mysql-server-through-socket-.html). I edited the /etc/my.cnf file with this:

[mysqld]socket=/var/lib/mysql/mysql.socket[client]socket=/var/lib/mysql/mysql.socket

But still the same issue continues.

https://redd.it/12w57a1
@r_devops

Ping Connection Pool failed for banksmart. Class name is wrong or classpath is not set for : com.mysql.cj.jdbc.MysqlXADataSource Please check the server.log for more details.

The error:

>Ping Connection Pool failed for banksmart. Class name is wrong or classpath is not set for : com.mysql.cj.jdbc.MysqlXADataSource Please check the server.log for more details.

Here's the JDBC Resources settings:

https://imgur.com/a/St7UY1V

Here's the JDBC connection pools settings:

https://imgur.com/a/wQLZLe2

Here's the server.log logfile.


https://pastebin.com/Ju3GQtCd

https://redd.it/12w6h00
@r_devops

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https://redd.it/12w63l8
@r_devops

How did you become a decent developer?

I need your help, so basically I started working as a devops Consultant, one year and a half ago. But I am a bad developer, also I was lazy I did not put much effort into what I was doing but I am working on changing that. So basically, I was a brilliant student, I could get good grades with a decent effort, but I am not really a good developer (it hearts me to say that but it is the case). Compared with my ex-student friends, most of them succeeded in work but not me. I also think one of the causes, is that during the university, I was more focused on my studies, so I was only studying theoretical courses. I have never developed something important, so when I started working, I can say I started from 0.

​

I am really motivated to change that, and my goal is to be able to reach seniority, I know it will take years, I am not delusional, but I want to ask you what is the best approach that made you a capable engineer, I need to hear your stories and what are the important aspects that an engineer must have to become a great engineer, that may help me to enable me as a DevOps.

​

Thanks

https://redd.it/12w6e89
@r_devops

Nigerian report needs better internet

I hired a recently graduated front end developer from Nigeria and she’s fantastic. I’d say she’s my best and most reliable report with the exception of her internet connection reliability. She often can’t participate in standup because our video calling suite is pretty heavy for her connection. We also have grown frustrated with the fact that she can’t screenshare on calls for the same reason.

I’m trying to purchase this for her but my company card keeps declining. I tried my personal cc; same issue. Then I tried another link from a Nigeria vendor (Jumia) and same issue.

Any recommendations?

https://redd.it/12w9sil
@r_devops

Deploying a monolith in 2023

Hi all.

Context:

I'm a BE and FE software developer and have some (basic imo) knowledge on deployment and observability.

I have a business idea, I'd like to try building (only me for now, but another person might join later). In order to prove that the idea is worth investing more time and effort, I'll start with it's most basic version, which is essentially a CRUD web service and a web UI with some extra stuff on top. My plan is for more complex features to be implemented after initial release.

In all the companies I've been working on, we've either started projects in k8s or migrating a monolith to microservices in k8s, or (around 7-8 years ago) working on a monolith deployed to a fleet of VMs.

I consider microservices an overkill for what I'm trying to build. They add many logical complications like handling distributed DB transactions for example, but they're pretty much all I know how to deploy and monitor.

Questions:

Is there a "proper" way of deploying a monolith in the current k8s-and-microservices-oriented world?Can you give me some advice or point me to an article I can read, or a set of tools I can try?

https://redd.it/12wfb91
@r_devops