Initial commit

roles/etcd/handlers/main.yml

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+---
+- name: restart daemons
+  command: /bin/true
+  notify:
+    - reload systemd
+    - restart etcd2
+
+- name: reload systemd
+  command: systemctl daemon-reload
+
+- name: restart etcd2
+  service: name=etcd2 state=restarted
+
+- name: Save iptables rules
+  command: service iptables save

roles/etcd/tasks/configure.yml

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+---
+- name: Disable ferm
+  service: name=ferm state=stopped enabled=no
+
+- name: Create etcd2 environment vars dir
+  file: path=/etc/systemd/system/etcd2.service.d state=directory
+
+- name: Write etcd2 config file
+  template: src=etcd2.j2 dest=/etc/systemd/system/etcd2.service.d/10-etcd2-cluster.conf
+  notify:
+    - reload systemd
+    - restart etcd2
+
+- name: Ensure etcd2 is running
+  service: name=etcd2 state=started enabled=yes

roles/etcd/tasks/install.yml

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+---
+- name: Create etcd user
+  user: name=etcd shell=/bin/nologin home=/var/lib/etcd2
+
+- name: Install etcd binaries
+  copy: 
+     src={{ local_release_dir }}/etcd/bin/{{ item }}
+     dest={{ bin_dir }}
+     owner=etcd
+     mode=u+x
+  with_items:
+    - etcdctl
+    - etcd
+  notify:
+    - restart daemons
+
+- name: Create etcd2 binary symlink
+  file: src=/usr/local/bin/etcd dest=/usr/local/bin/etcd2 state=link
+
+- name: Copy etcd2.service systemd file
+  template:
+    src: systemd-etcd2.service.j2
+    dest: /lib/systemd/system/etcd2.service
+  notify: restart daemons

roles/etcd/tasks/main.yml

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+---
+- include: install.yml
+- include: configure.yml

roles/etcd/templates/etcd2.j2

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+# etcd2.0
+[Service]
+{% if inventory_hostname in groups['kube-master'] %}
+Environment="ETCD_ADVERTISE_CLIENT_URLS=http://{{ ansible_default_ipv4.address }}:2379,http://{{ ansible_default_ipv4.address }}:4001"
+Environment="ETCD_INITIAL_ADVERTISE_PEER_URLS=http://{{ ansible_default_ipv4.address }}:2380"
+Environment="ETCD_INITIAL_CLUSTER=master=http://{{ ansible_default_ipv4.address }}:2380"
+Environment="ETCD_INITIAL_CLUSTER_STATE=new"
+Environment="ETCD_INITIAL_CLUSTER_TOKEN=k8s_etcd"
+Environment="ETCD_LISTEN_CLIENT_URLS=http://0.0.0.0:2379,http://0.0.0.0:4001"
+Environment="ETCD_LISTEN_PEER_URLS=http://:2380,http://{{ ansible_default_ipv4.address }}:7001"
+Environment="ETCD_NAME=master"
+{% else %}
+Environment="ETCD_ADVERTISE_CLIENT_URLS=http://0.0.0.0:2379,http://0.0.0.0:4001"
+Environment="ETCD_INITIAL_CLUSTER=master=http://{{ groups['kube-master'][0] }}:2380"
+Environment="ETCD_LISTEN_CLIENT_URLS=http://0.0.0.0:2379,http://0.0.0.0:4001"
+Environment="ETCD_PROXY=on"
+{% endif %}

roles/etcd/templates/systemd-etcd2.service.j2

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+[Unit]
+Description=etcd2
+Conflicts=etcd.service
+
+[Service]
+User=etcd
+Environment=ETCD_DATA_DIR=/var/lib/etcd2
+Environment=ETCD_NAME=%m
+ExecStart={{ bin_dir }}/etcd2
+Restart=always
+RestartSec=10s
+LimitNOFILE=40000
+
+[Install]
+WantedBy=multi-user.target