Set default etcd deployment to docker

Improved docker reload command to wait for etcd to be
up before proceeding. Switched reload to run restart
because it can't reload if it is not guaranteed to be
in running state.

roles/etcd/defaults/main.yml

@@ -3,7 +3,7 @@ etcd_version: v3.0.1
 etcd_bin_dir: "{{ local_release_dir }}/etcd/etcd-{{ etcd_version }}-linux-amd64/"
 
 # Possible values: host, docker
-etcd_deployment_type: "host"
+etcd_deployment_type: "docker"
 
 
 etcd_image_repo: "quay.io/coreos/etcd"

roles/etcd/handlers/main.yml

@@ -3,42 +3,35 @@
   command: /bin/true
   notify:
     - reload systemd
-    - start etcd
     - reload etcd
+    - wait for etcd up
 
 - name: restart etcd-proxy
   command: /bin/true
   notify:
     - reload systemd
-    - start etcd-proxy
     - reload etcd-proxy
+    - wait for etcd up
 
 - name: reload systemd
   command: systemctl daemon-reload
   when: ansible_service_mgr == "systemd"
 
-- name: start etcd
-  service:
-    name: etcd
-    enabled: yes
-    state: started
-  when: is_etcd_master
-
-- name: start etcd-proxy
-  service:
-    name: etcd-proxy
-    enabled: yes
-    state: started
-  when: is_etcd_proxy
+- name: wait for etcd up
+  uri: url=http://localhost:2379/health
+  register: result
+  until: result.status == 200
+  retries: 10
+  delay: 5
 
 - name: reload etcd
   service:
     name: etcd
-    state: "{{ 'restarted' if etcd_deployment_type == 'host' else 'reloaded' }}"
+    state: restarted
   when: is_etcd_master
 
 - name: reload etcd-proxy
   service:
     name: etcd-proxy
-    state: "{{ 'restarted' if etcd_deployment_type == 'host' else 'reloaded' }}"
+    state: restarted
   when: is_etcd_proxy

roles/etcd/tasks/main.yml

@@ -5,19 +5,6 @@
 - include: configure.yml
 - include: refresh_config.yml
 
-- name: Restart etcd if binary changed
-  command: /bin/true
-  notify: restart etcd
-  when: etcd_deployment_type == "host" and etcd_copy.stdout_lines and is_etcd_master
-
-- name: Restart etcd-proxy if binary changed
-  command: /bin/true
-  notify: restart etcd-proxy
-  when: etcd_deployment_type == "host" and etcd_copy.stdout_lines and is_etcd_proxy
-
-# Reload systemd before starting service
-- meta: flush_handlers
-
 - name: Ensure etcd is running
   service:
     name: etcd
@@ -32,6 +19,19 @@
     enabled: yes
   when: is_etcd_proxy
 
+- name: Restart etcd if binary changed
+  command: /bin/true
+  notify: restart etcd
+  when: etcd_deployment_type == "host" and etcd_copy.stdout_lines and is_etcd_master
+
+- name: Restart etcd-proxy if binary changed
+  command: /bin/true
+  notify: restart etcd-proxy
+  when: etcd_deployment_type == "host" and etcd_copy.stdout_lines and is_etcd_proxy
+
+# Reload systemd before starting service
+- meta: flush_handlers
+
 # After etcd cluster is assembled, make sure that
 # initial state of the cluster is in `existing`
 # state insted of `new`.

roles/etcd/templates/etcd-docker.service.j2

@@ -22,7 +22,7 @@ ExecStartPre=-{{ docker_bin_dir | default("/usr/bin") }}/docker rm -f {{ etcd_me
 ExecReload={{ docker_bin_dir | default("/usr/bin") }}/docker restart {{ etcd_member_name | default("etcd-proxy") }}
 ExecStop={{ docker_bin_dir | default("/usr/bin") }}/docker stop {{ etcd_member_name | default("etcd-proxy") }}
 Restart=always
-RestartSec=10s
+RestartSec=15s
 
 [Install]
 WantedBy=multi-user.target

roles/etcd/templates/etcd-proxy-docker.service.j2

@@ -22,7 +22,7 @@ ExecStartPre=-{{ docker_bin_dir | default("/usr/bin") }}/docker rm -f {{ etcd_pr
 ExecReload={{ docker_bin_dir | default("/usr/bin") }}/docker restart {{ etcd_proxy_member_name | default("etcd-proxy") }}
 ExecStop={{ docker_bin_dir | default("/usr/bin") }}/docker stop {{ etcd_proxy_member_name | default("etcd-proxy") }}
 Restart=always
-RestartSec=10s
+RestartSec=15s
 
 [Install]
 WantedBy=multi-user.target

roles/network_plugin/calico/tasks/main.yml

@@ -38,8 +38,11 @@
   changed_when: false
 
 - name: Calico | wait for etcd
-  wait_for:
-    port: 2379
+  uri: url=http://localhost:2379/health
+  register: result
+  until: result.status == 200
+  retries: 10
+  delay: 5
   when: inventory_hostname in groups['kube-master']
 
 - name: Calico | Check if calico network pool has already been configured