Toots for slamp@hachyderm.io account

Written by slamp on 2025-02-01 at 22:31

The #infrastructure of #Hachyderm was discussed at #FOSDEM in a Birds Of a Feather. We talked about the different components and why they are structured as they are now, explaining both their history and the financial aspect.

In the photo below @hazelweakly and @esk ; @e_nomem and myself were also there.

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Written by slamp on 2025-02-01 at 10:10

The GO @godevroom before and after at #FOSDEM @maartje #golang

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Written by slamp on 2025-01-31 at 09:48

[#]Brussels #grandplace

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Written by slamp on 2025-01-26 at 14:37

Fort Carré d'#Antibes #france #photography #silentsunday

https://en.wikipedia.org/wiki/Fort_Carr%C3%A9

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Written by slamp on 2025-01-19 at 15:20

I took the opportunity to install a #mongodb #exporter to monitor the database with #Prometheus and #Grafana

https://github.com/percona/mongodb_exporter

6/6

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Written by slamp on 2025-01-19 at 15:20

I love #dopamine !

I continued the upgrades:

upgrade Network Application controller to 8.1.113

upgrade MongoDB to 5.0, 6.0, 7.0

upgrade Network Application to 8.6.9

upgrade MongoDB to 8.0

upgrade Network Application to 9.0.108

And voila!

5/n

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Written by slamp on 2025-01-19 at 15:20

Indeed, #MongoDb 4.4.29 needs #ARM v8.2-A and #Raspberry #PI 4 is ARM v8.0-A. I had to stop at 4.4.18.

Plan B:

Move MongoDB to a #Synology NAS that has a #Ryzen CPU

I installed MongoDB 4.4.18, exposed the port, set a user/password with ACL.

To restore the database I used

mongorestore --uri="mongodb://user:pass@nas:27017/?authSource=admin" --archive=unifi.archive --db=unifi
mongorestore --uri="mongodb://user:pass@nas:27017/?authSource=admin" --archive=unifi_stat.archive --db=unifi_stat

I updated the Unifi network application container to use the new URI and user/pass and it worked !!!

The #dopamine rush was real !!!*

4/n

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Written by slamp on 2025-01-19 at 15:20

For each version, I did the following:

Stop Unifi network application
Backup the database
 mongodump --archive=unifi.archive --db=unifi
 mongodump --archive=unifi_stat.archive --db=unifi_stat
Stop MongoDB
Upgrade the Docker image version to n
Start MongoDB container
Start Unifi network application
Tests
Connect to Mongodb and set the feature compatibility version to n

https://www.mongodb.com/docs/manual/release-notes/8.0-upgrade-standalone/

This went fine until I tried to upgrade to 4.4.29. The MongoDb container was not starting.

Earlier, I had a warning but for an upper version "WARNING: MongoDB 5.0+ requires a CPU with #AVX support, and your current system does not appear to have that!"

3/n

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Written by slamp on 2025-01-19 at 15:20

Here is the plan:

upgrade MongoDB to 4.4

upgrade Network Application controller to 8.1.113

upgrade MongoDB to 5.0, 6.0, 7.0

upgrade Network Application to 8.6.9

upgrade MongoDB to 8.0

upgrade Network Application to 9.0.108

Well that was the plan but, I can't upgrade directly from MongoDB 3.6 to 4.4, I had to go through 4.0, 4.2, 4.4. Also, I read that there were some issues with upgrade from 3.6 to 4.0.0 and the advice was to start with 4.0.1

So my plan was the following: 3.6.23 -> 4.0.1 -> 4.0.28 -> 4.2.1 -> 4.2.24 -> 4.4.1 -> 4.4.29

(second version of each major version followed by the last version of each major version)

2/n

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Written by slamp on 2025-01-19 at 15:20

A little story about my journey to upgrade the #MongoDB version and my #Unifi Network Application #controller.

When reading the release note of #Ubiquiti Unifi Network Application (The controller), I noticed that the MongoDB version supported was increased.

UniFi Network Application 7.5 and newer requires MongoDB 3.6 and Java 17.
Version 7.5 till 8.0 supports up to MongoDB 4.4.
Version 8.1 and newer supports up to MongoDB 7.0.
Version 9.0 and newer supports up to MongoDB 8.0 and Java 17/21.

I'm running MongoDB 3.6 on my #Raspberry #PI 4, and I can upgrade it !

The last security update for MongoDB 3.6 was in April 2021, almost 4 years ago.

Unifi controller was 7.5.176 when I started this journey. (I'm using https://hub.docker.com/r/jacobalberty/unifi )

1/n

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Written by slamp on 2025-01-18 at 22:33

Context: upgrading to #ubiquiti #unifi network application 9.0.108

The #mongodb is 8.0.4

I noticed that there is one error when starting unifi controller:

logs | [2025-01-18T22:30:54,245+01:00] ERROR mongo - Could not determine Mongo journaling state

logs | com.mongodb.MongoCommandException: Command failed with error 13 (Unauthorized): 'not authorized on admin to execute command { serverStatus: 1, $db: "admin", lsid: { id: UUID("c34cea8c-9a04-4f18-947e-1aacb2da94c9") } }' on server 127.0.0.1:27017.

This is due to the missing role 'clusterMonitor' on db 'admin' for user 'unifi'

To add the role, I connected as root user on mongodb and then grant the role to unifi user on unifi db:

use unifi

db.grantRolesToUser("unifi", [{ role: "clusterMonitor", db: "admin" }]);

This role provides read-only access to monitoring tools

https://www.mongodb.com/docs/manual/reference/built-in-roles/#mongodb-authrole-clusterMonitor

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Written by slamp on 2025-01-16 at 07:12

[#]Pyxel permet de créer en #Python des jeux rendant hommage aux vieilles consoles, comme la Game Boy Color : de gros pixels, une palette de couleur réduite, un son minimaliste

https://blog.garambrogne.net/pyxel-initiation.html

[#]retrogaming

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Written by slamp on 2025-01-16 at 07:09

[#]Pyxel allows you to create games in Python that pay homage to old consoles, such as the Game Boy Color: big pixels, a reduced color palette, minimalist sound

It's a nice way to learn #Python for your kids. The backend is in #Rust #rustlang_gamedev #rustlang

https://github.com/kitao/pyxel/tree/main

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Written by slamp on 2025-01-14 at 08:23

I'm building a list of account to follow on Mastodon for #HomeAutomation with a focus on #HomeAssistant.

I started with those:

@homeassistant@fosstodon.org

@balloob

@frenck

@sairon

@homeassistant@a.gup.pe

What are your suggestions? who else should i add?

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Written by slamp on 2025-01-13 at 20:10

IP Address Planning in #Kubernetes 🥲

IP address planning can pose significant challenges. Opting for a subnet that's too small risks running out of IPs, while a subnet that's too large may lead to allocation issues across environments 🤯 #devopsish

https://isovalent.com/blog/post/overcoming-kubernetes-ip-address-exhaustion-with-cilium/

/cc @breakawaybilly

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Written by slamp on 2025-01-12 at 14:23

[#]rustlang

A #trait defines the functionality a particular type has and can share with other types. We can use traits to define shared behavior in an abstract way. [...]

Traits are similar to a feature often called interfaces in other languages [...]

Below a Summary trait that consists of the behavior provided by a summarize method:

pub trait Summary {