Switch to Kubernetes v1.16.0 (#5189)

* Switch to Kubernetes v1.16.0

Change-Id: I5d6a9528b2d443750fc5e031aff15ad3ffead158

* Fix download localhost cached file path

Change-Id: I65e79b70e3d1b37265ebc60f41b460cf4b0a0d47

* fix kubeadm etcd for v1.16

Change-Id: I6888a00fd48b530a38b0b31c4095492476af42d2

* disable tf packet jobs

Change-Id: I075c4666547fdea4c50ec04864f38e2cfaa79154

* Disable contiv packet jobs. Fix kube-router

Change-Id: I3170e8789e60711d4cee8faf65f2094480b79b8d

* bump sonobuoy version

Change-Id: Ib946905629c7c53ed88f08fb2f41c454457a0097

roles/kubernetes/master/tasks/kubeadm-secondary-experimental.yml

@@ -15,14 +15,7 @@
     {{ bin_dir }}/kubeadm init phase
     --config {{ kube_config_dir }}/kubeadm-config.yaml
     upload-certs
-    {% if kubeadm_version is version('v1.15.0', '<') %}
-    --experimental-upload-certs
-    {% else %}
     --upload-certs
-    {% endif %}
-    {% if kubeadm_certificate_key is defined and kubeadm_version is version('v1.15.0', '<') %}
-    --certificate-key={{ kubeadm_certificate_key }}
-    {% endif %}
   register: kubeadm_upload_cert
   when:
     - inventory_hostname == groups['kube-master']|first
@@ -60,9 +53,6 @@
     {{ bin_dir }}/kubeadm join
     --config {{ kube_config_dir }}/kubeadm-controlplane.yaml
     --ignore-preflight-errors=all
-    {% if kubeadm_certificate_key is defined and kubeadm_version is version('v1.15.0', '<') %}
-    --certificate-key={{ kubeadm_certificate_key }}
-    {% endif %}
   register: kubeadm_join_control_plane
   retries: 3
   until: kubeadm_join_control_plane is succeeded

roles/kubernetes/master/tasks/kubeadm-setup.yml

@@ -110,16 +110,7 @@
     --config={{ kube_config_dir }}/kubeadm-config.yaml
     --ignore-preflight-errors=all
     --skip-phases=addon/coredns
-    {% if kubeadm_version is version('v1.14.0', '>=') %}
-    {% if kubeadm_version is version('v1.15.0', '<') %}
-    --experimental-upload-certs
-    {% if kubeadm_certificate_key is defined and kubeadm_version is version('v1.15.0', '<') %}
-    --certificate-key={{ kubeadm_certificate_key }}
-    {% endif %}
-    {% else %}
     --upload-certs
-    {% endif %}
-    {% endif %}
   register: kubeadm_init
   # Retry is because upload config sometimes fails
   retries: 3
@@ -135,7 +126,6 @@
     kubeadm_certificate_key: "{{ item | regex_search('--certificate-key ([^ ]+)','\\1') | first }}"
   with_items: "{{ hostvars[groups['kube-master'][0]]['kubeadm_init'].stdout_lines | default([]) }}"
   when:
-    - kubeadm_version is version('v1.14.0', '>=')
     - kubeadm_certificate_key is not defined
     - item | trim | match('.*--certificate-key .*')
 

roles/kubernetes/master/tasks/kubeadm-version.yml

@@ -3,11 +3,6 @@
   command: "{{ bin_dir }}/kubeadm version -o short"
   register: kubeadm_output
 
-- name: sets kubeadm api version to v1beta1
-  set_fact:
-    kubeadmConfig_api_version: v1beta1
-  when: kubeadm_output.stdout is version('v1.13.0', '>=')
-
 - name: sets kubeadm api version to v1beta2
   set_fact:
     kubeadmConfig_api_version: v1beta2

roles/kubernetes/master/templates/kubeadm-config.v1beta1.yaml.j2

@@ -322,9 +322,7 @@ ipvs:
  minSyncPeriod: {{ kube_proxy_min_sync_period }}
  scheduler: {{ kube_proxy_scheduler }}
  syncPeriod: {{ kube_proxy_sync_period }}
-{% if kube_version is version('v1.14.2', '>=') %}
  strictARP: {{ kube_proxy_strict_arp }}
-{% endif %}
 metricsBindAddress: {{ kube_proxy_metrics_bind_address }}
 mode: {{ kube_proxy_mode }}
 nodePortAddresses: {{ kube_proxy_nodeport_addresses }}

roles/kubernetes/master/templates/kubeadm-config.v1beta2.yaml.j2

@@ -324,9 +324,7 @@ ipvs:
  minSyncPeriod: {{ kube_proxy_min_sync_period }}
  scheduler: {{ kube_proxy_scheduler }}
  syncPeriod: {{ kube_proxy_sync_period }}
-{% if kube_version is version('v1.14.2', '>=') %}
  strictARP: {{ kube_proxy_strict_arp }}
-{% endif %}
 metricsBindAddress: {{ kube_proxy_metrics_bind_address }}
 mode: {{ kube_proxy_mode }}
 nodePortAddresses: {{ kube_proxy_nodeport_addresses }}