Refactor etcd roles

- introduce block and simplify when conditions
- introduce config.yml so the self-standing etcd role can be run (e.g. to test etcd cluster deployment)
- remove empty task files
- skip dependency on openshift_etcd_ca
- replace cert paths with their appropriate variables

2 files changed, 56 insertions, 62 deletions

diff --git a/roles/etcd/tasks/etcdctl.yml b/roles/etcd/tasks/etcdctl.yml
index 649ad23c1..6cb456677 100644
--- a/roles/etcd/tasks/etcdctl.yml
+++ b/roles/etcd/tasks/etcdctl.yml
@@ -4,9 +4,9 @@
   when: not openshift.common.is_atomic | bool
 
 - name: Configure etcd profile.d alises
-  copy:
-    src: etcdctl.sh
-    dest: /etc/profile.d/etcdctl.sh
+  template:
+    dest: "/etc/profile.d/etcdctl.sh"
+    src: etcdctl.sh.j2
     mode: 0755
     owner: root
     group: root
diff --git a/roles/etcd/tasks/main.yml b/roles/etcd/tasks/main.yml
index c09da3b61..8853740e5 100644
--- a/roles/etcd/tasks/main.yml
+++ b/roles/etcd/tasks/main.yml
@@ -10,51 +10,45 @@
   package: name=etcd{{ '-' + etcd_version if etcd_version is defined else '' }} state=present
   when: not etcd_is_containerized | bool
 
-- name: Pull etcd container
-  command: docker pull {{ openshift.etcd.etcd_image }}
-  register: pull_result
-  changed_when: "'Downloaded newer image' in pull_result.stdout"
+- block:
+  - name: Pull etcd container
+    command: docker pull {{ openshift.etcd.etcd_image }}
+    register: pull_result
+    changed_when: "'Downloaded newer image' in pull_result.stdout"
+
+  - name: Install etcd container service file
+    template:
+      dest: "/etc/systemd/system/etcd_container.service"
+      src: etcd.docker.service
   when:
   - etcd_is_containerized | bool
   - not openshift.common.is_etcd_system_container | bool
 
-- name: Install etcd container service file
-  template:
-    dest: "/etc/systemd/system/etcd_container.service"
-    src: etcd.docker.service
-  when:
-  - etcd_is_containerized | bool
-  - not openshift.common.is_etcd_system_container | bool
-
-
 # Start secondary etcd instance for third party integrations
 # TODO: Determine an alternative to using thirdparty variable
-
-- name: Create configuration directory
-  file:
-    path: "{{ etcd_conf_dir }}"
-    state: directory
-    mode: 0700
-  when: etcd_is_thirdparty | bool
+- block:
+  - name: Create configuration directory
+    file:
+      path: "{{ etcd_conf_dir }}"
+      state: directory
+      mode: 0700
 
   # TODO: retest with symlink to confirm it does or does not function
-- name: Copy service file for etcd instance
-  copy:
-    src: /usr/lib/systemd/system/etcd.service
-    dest: "/etc/systemd/system/{{ etcd_service }}.service"
-    remote_src: True
-  when: etcd_is_thirdparty | bool
-
-- name: Create third party etcd service.d directory exists
-  file:
-    path: "{{ etcd_systemd_dir }}"
-    state: directory
-  when: etcd_is_thirdparty | bool
-
-- name: Configure third part etcd service unit file
-  template:
-    dest: "{{ etcd_systemd_dir }}/custom.conf"
-    src: custom.conf.j2
+  - name: Copy service file for etcd instance
+    copy:
+      src: /usr/lib/systemd/system/etcd.service
+      dest: "/etc/systemd/system/{{ etcd_service }}.service"
+      remote_src: True
+
+  - name: Create third party etcd service.d directory exists
+    file:
+      path: "{{ etcd_systemd_dir }}"
+      state: directory
+
+  - name: Configure third part etcd service unit file
+    template:
+      dest: "{{ etcd_systemd_dir }}/custom.conf"
+      src: custom.conf.j2
   when: etcd_is_thirdparty
 
   # TODO: this task may not be needed with Validate permissions
@@ -80,28 +74,28 @@
   command: systemctl daemon-reload
   when: etcd_is_thirdparty | bool
 
-- name: Disable system etcd when containerized
-  systemd:
-    name: etcd
-    state: stopped
-    enabled: no
-    masked: yes
-    daemon_reload: yes
-  when:
-  - etcd_is_containerized | bool
-  - not openshift.common.is_etcd_system_container | bool
-  register: task_result
-  failed_when: "task_result|failed and 'could not' not in task_result.msg|lower"
-
-- name: Install etcd container service file
-  template:
-    dest: "/etc/systemd/system/etcd_container.service"
-    src: etcd.docker.service
-  when: etcd_is_containerized | bool and not openshift.common.is_etcd_system_container | bool
-
-- name: Install Etcd system container
-  include: system_container.yml
-  when: etcd_is_containerized | bool and openshift.common.is_etcd_system_container | bool
+- block:
+  - name: Disable system etcd when containerized
+    systemd:
+      name: etcd
+      state: stopped
+      enabled: no
+      masked: yes
+      daemon_reload: yes
+    when: not openshift.common.is_etcd_system_container | bool
+    register: task_result
+    failed_when: "task_result|failed and 'could not' not in task_result.msg|lower"
+
+  - name: Install etcd container service file
+    template:
+      dest: "/etc/systemd/system/etcd_container.service"
+      src: etcd.docker.service
+    when: not openshift.common.is_etcd_system_container | bool
+
+  - name: Install Etcd system container
+    include: system_container.yml
+    when: openshift.common.is_etcd_system_container | bool
+  when: etcd_is_containerized | bool
 
 - name: Validate permissions on the config dir
   file: