chore: Remove minio addon

[HomayoonAlimohammadi]

Overview

This PR removes minio addon since it's entered maintenance mode.

[berkayoz]

We should turn the enable command into a no-op / deprecation(removal) warning and keep the disable script as is. We should let users disable the addon. We can drop testing for it as well.

[HomayoonAlimohammadi]

Great point, thanks for the review @berkayoz! I've added a deprecation note to the enable script and addon description as well.

[berkayoz]

LGTM, have you tested the disabling under deprecation?

[HomayoonAlimohammadi]

@berkayoz yes, here's the result:

# starting from a microk8s that still has the minio addon intact
$ root@microk8s:~# microk8s enable minio
Infer repository core for addon minio
Infer repository core for addon dns
Addon core/dns is already enabled
Infer repository core for addon helm3
Addon core/helm3 is already enabled
Infer repository core for addon hostpath-storage
Enabling default storage class.
WARNING: Hostpath storage is not suitable for production environments.
         A hostpath volume can grow beyond the size limit set in the volume claim manifest.

deployment.apps/hostpath-provisioner created
storageclass.storage.k8s.io/microk8s-hostpath created
serviceaccount/microk8s-hostpath created
clusterrole.rbac.authorization.k8s.io/microk8s-hostpath created
clusterrolebinding.rbac.authorization.k8s.io/microk8s-hostpath created
Storage will be available soon.
Installing minio operator
Release "minio-operator" does not exist. Installing it now.
NAME: minio-operator
LAST DEPLOYED: Wed Dec 17 08:54:34 2025
NAMESPACE: minio-operator
STATUS: deployed
REVISION: 1
TEST SUITE: None
Create default tenant with:

  Name: microk8s
  Capacity: 20Gi
  Servers: 1
  Volumes: 1
  Storage class: microk8s-hostpath
  TLS: no
  Prometheus: no

secret/microk8s-user-1 created
++ tr -dc A-Za-z0-9
++ head -c 20
++ tr -dc A-Za-z0-9
++ head -c 40
+ /snap/microk8s/x1/microk8s-helm3.wrapper upgrade --install microk8s tenant --repo https://operator.min.io --version v7.1.1 --namespace minio-operator --set tenant.name=microk8s --set 'tenant.users[0].name=microk8s-user-1' --set 'tenant.pools[0].name=microk8s' --set 'tenant.pools[0].storageClassName=microk8s-hostpath' --set 'tenant.pools[0].size=20Gi' --set 'tenant.pools[0].servers=1' --set 'tenant.pools[0].volumesPerServer=1' --set tenant.configuration.name=microk8s-env-configuration --set tenant.configSecret.name=microk8s-env-configuration --set tenant.configSecret.accessKey=g8vvgpH6tWvkqXG1HQ5H --set tenant.configSecret.secretKey=fjRsyayjb78zFTCMs8qrFnGgbgoILatNh9cCTpyk --set secrets= --set tenant.certificate.requestAutoCert=false
Release "microk8s" does not exist. Installing it now.
NAME: microk8s
LAST DEPLOYED: Wed Dec 17 08:54:35 2025
NAMESPACE: minio-operator
STATUS: deployed
REVISION: 1
TEST SUITE: None
+ set +x
================================
Enabled minio addon.

You can interact with minio through the minio client (https://min.io/docs/minio/linux/reference/minio-mc.html#minio-client).

$ root@microk8s:~# cd core-addons/

$ root@microk8s:~/core-addons# git status
On branch chore/remove-minio
nothing to commit, working tree clean


$ root@microk8s:~# microk8s addons repo remove core
Removing /var/snap/microk8s/common/addons/core

$ root@microk8s:~# cp -r core-addons/ /var/snap/microk8s/common/addons/core/

$ root@microk8s:~# microk8s enable minio
Infer repository core for addon minio
Addon core/minio is already enabled

$ root@microk8s:~# microk8s disable minio
Infer repository core for addon minio
+ echo 'Cleaning up MinIO tenants and operator'
Cleaning up MinIO tenants and operator
+ HELM=/snap/microk8s/x1/microk8s-helm3.wrapper
+ KUBECTL=/snap/microk8s/x1/microk8s-kubectl.wrapper
+ NAMESPACE=minio-operator
++ /snap/microk8s/x1/microk8s-helm3.wrapper list -n minio-operator --short
++ grep -v minio-operator
+ tenant_name=microk8s
+ /snap/microk8s/x1/microk8s-kubectl.wrapper delete -n minio-operator secret microk8s-user-1
secret "microk8s-user-1" deleted from minio-operator namespace
+ /snap/microk8s/x1/microk8s-helm3.wrapper list -n minio-operator --short
+ xargs /snap/microk8s/x1/microk8s-helm3.wrapper uninstall -n minio-operator
release "microk8s" uninstalled
release "minio-operator" uninstalled
+ echo 'Disabled minio addon.'
Disabled minio addon.

$ root@microk8s:~# microk8s enable minio
Infer repository core for addon minio
The Minio addon is deprecated and cannot be enabled. It will be completely removed in the upcoming versions.
You can run 'microk8s disable minio' to remove the minio-operator from your cluster.

$ root@microk8s:~# k get all -A |grep minio