Fix kube-proxy post deployment removal (#5554)

* Fix kube-proxy removal

* Fix unwanted skipped task for kube-proxy
* Fix kube_proxy_remove default

Signed-off-by: Arthur Outhenin-Chalandre <arthur@cri.epita.fr>

* Add test for kube-router svc proxy

Signed-off-by: Arthur Outhenin-Chalandre <arthur@cri.epita.fr>

.gitlab-ci/packet.yml

@@ -63,6 +63,11 @@ packet_ubuntu16-kube-router-sep:
   extends: .packet
   when: manual
 
+packet_ubuntu16-kube-router-svc-proxy:
+  stage: deploy-part2
+  extends: .packet
+  when: manual
+
 packet_debian10-containerd:
   stage: deploy-part2
   extends: .packet

roles/kubernetes/kubeadm/defaults/main.yml

@@ -4,9 +4,6 @@
 discovery_timeout: 60s
 kubeadm_join_timeout: 120s
 
-# Optionally remove kube_proxy installed by kubeadm
-kube_proxy_remove: false
-
 # If non-empty, will use this string as identification instead of the actual hostname
 kube_override_hostname: >-
   {%- if cloud_provider is defined and cloud_provider in [ 'aws' ] -%}

roles/kubernetes/kubeadm/tasks/main.yml

@@ -163,7 +163,6 @@
   delegate_to: "{{ groups['kube-master']|first }}"
   when:
     - kube_proxy_remove
-    - kubeadm_discovery_address != kube_apiserver_endpoint | replace("https://", "")
   # When scaling/adding nodes in the existing k8s cluster, kube-proxy wouldn't be created, as `kubeadm init` wouldn't run.
   ignore_errors: true
   tags:

roles/kubernetes/node/defaults/main.yml

@@ -22,9 +22,6 @@ kubelet_kubelet_cgroups: "/systemd/system.slice"
 ### fail with swap on (default true)
 kubelet_fail_swap_on: true
 
-# Optionally remove kube_proxy installed by kubeadm
-kube_proxy_remove: false
-
 # Reserve this space for kube resources
 kube_memory_reserved: 256M
 kube_cpu_reserved: 100m

roles/win_nodes/kubernetes_patch/defaults/main.yml

@@ -1,7 +1,5 @@
 ---
 
 kubernetes_user_manifests_path: "{{ ansible_env.HOME }}/kube-manifests"
-# Optionally remove kube_proxy installed by kubeadm
-kube_proxy_remove: false
 # nodeselector for kube-proxy ds is beta until 1.18
 kube_proxy_nodeselector: "{{ 'kubernetes.io/os' if kube_version is version('v1.18.0', '>=') else 'beta.kubernetes.io/os' }}"

tests/files/packet_ubuntu16-kube-router-svc-proxy.yml

@@ -0,0 +1,12 @@
+---
+# Instance settings
+cloud_image: ubuntu-1604
+mode: separate
+
+# Kubespray settings
+bootstrap_os: ubuntu
+kube_network_plugin: kube-router
+deploy_netchecker: true
+dns_min_replicas: 1
+
+kube_router_run_service_proxy: true