After Deployment changes, reconciliation is not happening.

[laxmikantbpandhare]

Bug Report

What did you do?

Followed below steps

1. I set size in 5 in CR
   --> deployment size is 5
   --> 5 pods
2. I manually change deployment size to 2 (memcached) <-- started at around 40 sec
   --> now changed to 2 pods
   --> CR still with size in 5
3. I expect: the deployment of the memachecd should become 5 by the Operator due to the CR is 5
   --> but still stuck in 2

Expected - After deployment changes, it should reconcile and match it with CR

What did you expect to see?

It must reconcile and match Deployment state to CR - User defined state.

What did you see instead? Under which circumstances?

Nothing happened and Cluster contains updated Deployment state.

Environment

Kubernetes cluster type:

Minikube

$ operator-sdk version

openjdk version "16.0.2" 2021-07-20
OpenJDK Runtime Environment (build 16.0.2+7-67)
OpenJDK 64-Bit Server VM (build 16.0.2+7-67, mixed mode, sharing)
laxmikantbhaskarpandhare@lpandhar-mac memcached-quarkus-operator % operator-sdk version
operator-sdk version: "v1.14.0-11-g3d61d762-dirty", commit: "3d61d762ea0ac9926afc0b30042e35f257becad2", kubernetes version: "v1.21", go version: "go1.17.2", GOOS: "darwin", GOARCH: "amd64"

$ java -version (if language is Java)

openjdk version "16.0.2" 2021-07-20
OpenJDK Runtime Environment (build 16.0.2+7-67)
OpenJDK 64-Bit Server VM (build 16.0.2+7-67, mixed mode, sharing)

$ kubectl version

Client Version: version.Info{Major:"1", Minor:"22", GitVersion:"v1.22.2", GitCommit:"8b5a19147530eaac9476b0ab82980b4088bbc1b2", GitTreeState:"clean", BuildDate:"2021-09-15T21:38:50Z", GoVersion:"go1.16.8", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"20", GitVersion:"v1.20.2", GitCommit:"faecb196815e248d3ecfb03c680a4507229c2a56", GitTreeState:"clean", BuildDate:"2021-01-13T13:20:00Z", GoVersion:"go1.15.5", Compiler:"gc", Platform:"linux/amd64"}
WARNING: version difference between client (1.22) and server (1.20) exceeds the supported minor version skew of +/-1

Possible Solution

Keep Watch for Deployment events and reconcile if there is any changes in Deployment.

[laxmikantbpandhare]

Started working on it and will raise PR in few days.