Migrate platform reference to Upbound official providers

[ytsarev]

Signed-off-by: Yury Tsarev yury@upbound.io

Description of your changes

• Migration of AKS, Network, and Postgres Compositions to official providers
• Extending Postgresql XRD to be able to reference custom password secret
• Remove outdated UI annotations

Concerns

• https://doc.crds.dev/github.com/crossplane/crossplane/meta.pkg.crossplane.io/Configuration/v1@v1.9.0 does not support packagePullSecret meanwhile it is a must for OP installation
• README was updated with the fix of outdated links and obvious error but needs additional OP-focused revamp

I have:

• Read and followed Upbound's contribution process.
• Run make reviewable to ensure this PR is ready for review.
• Added backport release-x.y labels to auto-backport this PR, as appropriate.

How has this code been tested

kubectl apply -f examples/cluster-claim.yaml
kubectl apply -f examples/postgres-claim.yaml

k get managed
NAME                                                   READY   SYNCED   EXTERNAL-NAME           AGE
resourcegroup.azure.upbound.io/platform-ref-azure-rg   True    True     platform-ref-azure-rg   53m

NAME                                                       CHART        VERSION   SYNCED   READY   STATE      REVISION   DESCRIPTION        AGE
release.helm.crossplane.io/platform-ref-azure-prometheus   prometheus   15.0.1    True     True    deployed   1          Install complete   53m

NAME                                                                         READY   SYNCED   EXTERNAL-NAME            AGE
kubernetescluster.containerservice.azure.upbound.io/platform-ref-azure-aks   True    True     platform-ref-azure-aks   53m

NAME                                                                             READY   SYNCED   EXTERNAL-NAME                AGE
virtualnetworkrule.dbforpostgresql.azure.upbound.io/platform-ref-azure-sn-rule   True    True     platform-ref-azure-sn-rule   41m

NAME                                                                    READY   SYNCED   EXTERNAL-NAME                   AGE
server.dbforpostgresql.azure.upbound.io/platform-ref-azure-postgresql   True    True     platform-ref-azure-postgresql   41m

NAME                                                              READY   SYNCED   EXTERNAL-NAME             AGE
virtualnetwork.network.azure.upbound.io/platform-ref-azure-vnet   True    True     platform-ref-azure-vnet   53m

NAME                                                    READY   SYNCED   EXTERNAL-NAME           AGE
subnet.network.azure.upbound.io/platform-ref-azure-sn   True    True     platform-ref-azure-sn   53m

[stevendborrelli]

Sorry, this is on the wrong PR

[stevendborrelli]

README updates (I can't select these lines in the GitHub UI)

• Should the README include information about image pull secrets?
• In the README Quick start, update the PLATFORM_VERSION environment variable

Testing of resources was successful:

kubectl get claim
kubectl get managedNAME                                                      READY   CONNECTION-SECRET               AGE
cluster.azure.platformref.upbound.io/platform-ref-azure   True    platform-ref-azure-kubeconfig   12m

NAME                                                                    READY   CONNECTION-SECRET            AGE
postgresqlinstance.azure.platformref.upbound.io/platform-ref-azure-db   True    platform-ref-azure-db-conn   11m
 ✗ kubectl get managed
NAME                                                   READY   SYNCED   EXTERNAL-NAME           AGE
resourcegroup.azure.upbound.io/platform-ref-azure-rg   True    True     platform-ref-azure-rg   12m

NAME                                                       CHART        VERSION   SYNCED   READY   STATE      REVISION   DESCRIPTION        AGE
release.helm.crossplane.io/platform-ref-azure-prometheus   prometheus   15.0.1    True     True    deployed   1          Install complete   2m21s

NAME                                                                         READY   SYNCED   EXTERNAL-NAME            AGE
kubernetescluster.containerservice.azure.upbound.io/platform-ref-azure-aks   True    True     platform-ref-azure-aks   12m

NAME                                                                             READY   SYNCED   EXTERNAL-NAME                AGE
virtualnetworkrule.dbforpostgresql.azure.upbound.io/platform-ref-azure-sn-rule   True    True     platform-ref-azure-sn-rule   11m

NAME                                                                    READY   SYNCED   EXTERNAL-NAME                   AGE
server.dbforpostgresql.azure.upbound.io/platform-ref-azure-postgresql   True    True     platform-ref-azure-postgresql   11m

NAME                                                              READY   SYNCED   EXTERNAL-NAME             AGE
virtualnetwork.network.azure.upbound.io/platform-ref-azure-vnet   True    True     platform-ref-azure-vnet   12m

NAME                                                    READY   SYNCED   EXTERNAL-NAME           AGE
subnet.network.azure.upbound.io/platform-ref-azure-sn   True    True     platform-ref-azure-sn   12m

[ytsarev]

@stevendborrelli thanks a ton for the thorough testing. I've made some updated to the README, could you take a look if they make sense?

[ytsarev]

@luebken crossplane.yaml annotations updated in 8855df5

[jbw976]

thanks for getting this reference platform updated @ytsarev, great work!! 💪

in our testing, we were able to also deploy an app to the AKS cluster that could connect to and consume the postgres database?

[jbw976]

it's awesome that examples get included in the packages now!

[jbw976]

is this a version that has all the server side CRD perf fixes?

[ytsarev]

Great question, from what I can tell yes, https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.24.md#changelog-since-v1243
The changelog contains kubernetes/kubernetes#111648
Also, it is the highest available AKS version at the moment

az aks get-versions --location westus2 --output table
KubernetesVersion    Upgrades
-------------------  -----------------------
1.24.3               None available
1.24.0               1.24.3
1.23.8               1.24.0, 1.24.3
1.23.5               1.23.8, 1.24.0, 1.24.3
1.22.11              1.23.5, 1.23.8
1.22.6               1.22.11, 1.23.5, 1.23.8

[ytsarev]

@jbw976 thanks a lot for the review! The e2e application deployment is not part of this PR as we decided to not expand the scope and focus on the official provider migration only. The platform-ref functionality can be definitely expanded with the next possible incremental iterations.