Merge pull request #25 from stevekuznetsov/skuznets/scale-first

Add Kibana readiness probe, stop using `oc scale` for cluster start

roles/openshift_logging_curator/tasks/main.yaml

@@ -91,7 +91,7 @@
     es_port: "{{ openshift_logging_curator_es_port }}"
     curator_cpu_limit: "{{ openshift_logging_curator_cpu_limit }}"
     curator_memory_limit: "{{ openshift_logging_curator_memory_limit }}"
-    replicas: "{{ openshift_logging_curator_replicas | default (0)}}"
+    replicas: "{{ openshift_logging_curator_replicas | default (1) }}"
     curator_node_selector: "{{openshift_logging_curator_nodeselector | default({})}}"
   check_mode: no
   changed_when: no
@@ -106,15 +106,6 @@
     - "{{ tempdir }}/templates/curator-dc.yaml"
     delete_after: true
 
-# scale up
-- name: Start Curator
-  oc_scale:
-    kind: dc
-    name: "{{ curator_name }}"
-    namespace: "{{ openshift_logging_namespace }}"
-    replicas: "{{ openshift_logging_curator_replicas | default (1) }}"
-
-
 - name: Delete temp directory
   file:
     name: "{{ tempdir }}"

roles/openshift_logging_curator/templates/curator.j2

@@ -7,7 +7,7 @@ metadata:
     component: "{{component}}"
     logging-infra: "{{logging_component}}"
 spec:
-  replicas: {{replicas|default(0)}}
+  replicas: {{replicas|default(1)}}
   selector:
     provider: openshift
     component: "{{component}}"

roles/openshift_logging_elasticsearch/tasks/main.yaml

@@ -256,6 +256,7 @@
     es_memory_limit: "{{ openshift_logging_elasticsearch_memory_limit }}"
     es_node_selector: "{{ openshift_logging_elasticsearch_nodeselector | default({}) }}"
     deploy_type: "{{ openshift_logging_elasticsearch_deployment_type }}"
+    replicas: 1
 
 - name: Set ES dc
   oc_obj:
@@ -267,14 +268,6 @@
     - "{{ tempdir }}/templates/logging-es-dc.yml"
     delete_after: true
 
-# scale up
-- name: Start Elasticsearch
-  oc_scale:
-    kind: dc
-    name: "{{ es_deploy_name }}"
-    namespace: "{{ openshift_logging_elasticsearch_namespace }}"
-    replicas: 1
-
 ## Placeholder for migration when necessary ##
 
 - name: Delete temp directory

roles/openshift_logging_elasticsearch/templates/es.j2

@@ -8,7 +8,7 @@ metadata:
     deployment: "{{deploy_name}}"
     logging-infra: "{{logging_component}}"
 spec:
-  replicas: {{replicas|default(0)}}
+  replicas: {{replicas|default(1)}}
   selector:
     provider: openshift
     component: "{{component}}"

roles/openshift_logging_kibana/tasks/main.yaml

@@ -210,7 +210,7 @@
     kibana_memory_limit: "{{ openshift_logging_kibana_memory_limit }}"
     kibana_proxy_cpu_limit: "{{ openshift_logging_kibana_proxy_cpu_limit }}"
     kibana_proxy_memory_limit: "{{ openshift_logging_kibana_proxy_memory_limit }}"
-    replicas: "{{ openshift_logging_kibana_replicas | default (0) }}"
+    replicas: "{{ openshift_logging_kibana_replicas | default (1) }}"
     kibana_node_selector: "{{ openshift_logging_kibana_nodeselector | default({}) }}"
 
 - name: Set Kibana DC
@@ -223,14 +223,6 @@
     - "{{ tempdir }}/templates/kibana-dc.yaml"
     delete_after: true
 
-# Scale up Kibana -- is this really necessary?
-- name: Start Kibana
-  oc_scale:
-    kind: dc
-    name: "{{ kibana_name }}"
-    namespace: "{{ openshift_logging_namespace }}"
-    replicas: "{{ openshift_logging_kibana_replicas | default (1) }}"
-
 # update master configs?
 
 - name: Delete temp directory

roles/openshift_logging_kibana/templates/kibana.j2

@@ -7,7 +7,7 @@ metadata:
     component: "{{ component }}"
     logging-infra: "{{ logging_component }}"
 spec:
-  replicas: {{ replicas | default(0) }}
+  replicas: {{ replicas | default(1) }}
   selector:
     provider: openshift
     component: "{{ component }}"
@@ -63,6 +63,13 @@ spec:
             - name: kibana
               mountPath: /etc/kibana/keys
               readOnly: true
+          readinessProbe:
+            exec:
+              command:
+              - "/usr/share/kibana/probe/readiness.sh"
+            initialDelaySeconds: 5
+            timeoutSeconds: 4
+            periodSeconds: 5
         -
           name: "kibana-proxy"
           image: {{ proxy_image }}

roles/openshift_logging_mux/tasks/main.yaml

@@ -172,7 +172,7 @@
     ops_port: "{{ openshift_logging_mux_ops_port }}"
     mux_cpu_limit: "{{ openshift_logging_mux_cpu_limit }}"
     mux_memory_limit: "{{ openshift_logging_mux_memory_limit }}"
-    replicas: "{{ openshift_logging_mux_replicas | default(0) }}"
+    replicas: "{{ openshift_logging_mux_replicas | default(1) }}"
     mux_node_selector: "{{ openshift_logging_mux_nodeselector | default({}) }}"
   check_mode: no
   changed_when: no
@@ -187,14 +187,6 @@
     - "{{ tempdir }}/templates/logging-mux-dc.yaml"
     delete_after: true
 
-# Scale up Mux
-- name: Start Mux
-  oc_scale:
-    kind: dc
-    name: "logging-mux"
-    namespace: "{{ openshift_logging_mux_namespace }}"
-    replicas: "{{ openshift_logging_mux_replicas | default (1) }}"
-
 - name: Delete temp directory
   file:
     name: "{{ tempdir }}"

roles/openshift_logging_mux/templates/mux.j2

@@ -7,7 +7,7 @@ metadata:
     component: "{{component}}"
     logging-infra: "{{logging_component}}"
 spec:
-  replicas: {{replicas|default(0)}}
+  replicas: {{replicas|default(1)}}
   selector:
     provider: openshift
     component: "{{component}}"