Add event-ttl duration (#6310)

* Add event-ttl duration

* Fix wrong location

inventory/sample/group_vars/k8s-cluster/k8s-cluster.yml

@@ -309,3 +309,6 @@ persistent_volumes_enabled: false
 #   - TLS_RSA_WITH_AES_256_CBC_SHA
 #   - TLS_RSA_WITH_AES_256_GCM_SHA384
 #   - TLS_RSA_WITH_RC4_128_SHA
+
+## Amount of time to retain events. (default 1h0m0s)
+event_ttl_duration: "1h0m0s"

roles/kubernetes/master/defaults/main/main.yml

@@ -194,3 +194,6 @@ secrets_encryption_query: "resources[*].providers[0].{{kube_encryption_algorithm
 #   - TLS_RSA_WITH_AES_256_CBC_SHA
 #   - TLS_RSA_WITH_AES_256_GCM_SHA384
 #   - TLS_RSA_WITH_RC4_128_SHA
+
+## Amount of time to retain events. (default 1h0m0s)
+event_ttl_duration: "1h0m0s"

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

@@ -186,6 +186,9 @@ apiServer:
     tls-cipher-suites: {% for tls in tls_cipher_suites %}{{ tls }}{{ "," if not loop.last else "" }}{% endfor %}
 
 {% endif %}
+{% if event_ttl_duration is defined %}
+    event-ttl: {{ event_ttl_duration }}
+{%endif%}
 {% if kubernetes_audit or kube_basic_auth|default(true) or kube_token_auth|default(true) or kube_webhook_token_auth|default(false) or ( cloud_provider is defined and cloud_provider in ["openstack", "azure", "vsphere", "aws"] ) or apiserver_extra_volumes or ssl_ca_dirs|length %}
   extraVolumes:
 {% if cloud_provider is defined and cloud_provider in ["openstack", "azure", "vsphere", "aws"] %}