logging: introducing event router

- eventrouter has its own role 'openshift_logging_eventrouter' written as
  a template
- 'openshift_logging_install_eventrouter' controls whether it gets included
  in the playbook or not
- deployed by default to 'default' namespace

3 files changed, 105 insertions, 0 deletions

diff --git a/roles/openshift_logging_eventrouter/tasks/delete_eventrouter.yaml b/roles/openshift_logging_eventrouter/tasks/delete_eventrouter.yaml
new file mode 100644
index 000000000..cf0abbde9
--- /dev/null
+++ b/roles/openshift_logging_eventrouter/tasks/delete_eventrouter.yaml
@@ -0,0 +1,40 @@
+---
+# delete eventrouter
+- name: Delete EventRouter service account
+  oc_serviceaccount:
+    state: absent
+    name: "aggregated-logging-eventrouter"
+    namespace: "{{ openshift_logging_eventrouter_namespace }}"
+
+- name: Delete event-reader cluster role
+  oc_clusterrole:
+    state: absent
+    name: event-reader
+
+- name: Unset privileged permissions for EventRouter
+  oc_adm_policy_user:
+    namespace: "{{ openshift_logging_eventrouter_namespace }}"
+    resource_kind: cluster-role
+    resource_name: event-reader
+    state: absent
+    user: "system:serviceaccount:{{ openshift_logging_eventrouter_namespace }}:aggregated-logging-eventrouter"
+
+- name: Delete EventRouter configmap
+  oc_configmap:
+    state: absent
+    name: logging-eventrouter
+    namespace: "{{ openshift_logging_eventrouter_namespace }}"
+
+- name: Delete EventRouter DC
+  oc_obj:
+    state: absent
+    name: logging-eventrouter
+    namespace: "{{ openshift_logging_eventrouter_namespace }}"
+    kind: dc
+
+- name: Delete EventRouter Template
+  oc_obj:
+    state: absent
+    name: eventrouter-template
+    namespace: "{{ openshift_logging_eventrouter_namespace }}"
+    kind: template
diff --git a/roles/openshift_logging_eventrouter/tasks/install_eventrouter.yaml b/roles/openshift_logging_eventrouter/tasks/install_eventrouter.yaml
new file mode 100644
index 000000000..8df7435e2
--- /dev/null
+++ b/roles/openshift_logging_eventrouter/tasks/install_eventrouter.yaml
@@ -0,0 +1,59 @@
+---
+# initial checks
+- assert:
+    msg: Invalid sink type "{{openshift_logging_eventrouter_sink}}", only one of "{{__eventrouter_sinks}}" allowed
+    that: openshift_logging_eventrouter_sink in __eventrouter_sinks
+
+# allow passing in a tempdir
+- name: Create temp directory for doing work in
+  command: mktemp -d /tmp/openshift-logging-ansible-XXXXXX
+  register: mktemp
+  changed_when: False
+
+- set_fact:
+    tempdir: "{{ mktemp.stdout }}"
+
+- name: Create templates subdirectory
+  file:
+    state: directory
+    path: "{{ tempdir }}/templates"
+    mode: 0755
+  changed_when: False
+
+# create EventRouter deployment config
+- name: Generate EventRouter template
+  template:
+    src: eventrouter-template.j2
+    dest: "{{ tempdir }}/templates/eventrouter-template.yaml"
+  vars:
+    node_selector: "{{ openshift_logging_eventrouter_nodeselector | default({}) }}"
+
+- name: Create EventRouter template
+  oc_obj:
+    namespace: "{{ openshift_logging_eventrouter_namespace }}"
+    kind: template
+    name: eventrouter-template
+    state: present
+    files:
+    - "{{ tempdir }}/templates/eventrouter-template.yaml"
+
+- name: Process EventRouter template
+  oc_process:
+    state: present
+    template_name: eventrouter-template
+    namespace: "{{ openshift_logging_eventrouter_namespace }}"
+    params:
+      IMAGE: "{{openshift_logging_eventrouter_image_prefix}}logging-eventrouter:{{openshift_logging_eventrouter_image_version}}"
+      REPLICAS: "{{ openshift_logging_eventrouter_replicas }}"
+      CPU: "{{ openshift_logging_eventrouter_cpu_limit }}"
+      MEMORY: "{{ openshift_logging_eventrouter_memory_limit }}"
+      NAMESPACE: "{{ openshift_logging_eventrouter_namespace }}"
+      SINK: "{{ openshift_logging_eventrouter_sink }}"
+
+## Placeholder for migration when necessary ##
+
+- name: Delete temp directory
+  file:
+    name: "{{ tempdir }}"
+    state: absent
+  changed_when: False
diff --git a/roles/openshift_logging_eventrouter/tasks/main.yaml b/roles/openshift_logging_eventrouter/tasks/main.yaml
new file mode 100644
index 000000000..58e5a559f
--- /dev/null
+++ b/roles/openshift_logging_eventrouter/tasks/main.yaml
@@ -0,0 +1,6 @@
+---
+- include: "{{ role_path }}/tasks/install_eventrouter.yaml"
+  when: openshift_logging_install_eventrouter | default(false) | bool
+
+- include: "{{ role_path }}/tasks/delete_eventrouter.yaml"
+  when: not openshift_logging_install_eventrouter | default(false) | bool