From 3014dfef24effa7f137aab1238dd4b0ef0b50f22 Mon Sep 17 00:00:00 2001
From: Smaine Kahlouch <smaine.kahlouch@arkena.com>
Date: Sun, 6 Dec 2015 20:39:03 +0100
Subject: [PATCH] Clustering etcd for ha masters
---
roles/etcd/templates/etcd2.j2 | 25 ++++++++++++-------------
1 file changed, 12 insertions(+), 13 deletions(-)
diff --git a/roles/etcd/templates/etcd2.j2 b/roles/etcd/templates/etcd2.j2
index 27143e458..cb3305287 100644
--- a/roles/etcd/templates/etcd2.j2
+++ b/roles/etcd/templates/etcd2.j2
@@ -1,17 +1,16 @@
# etcd2.0
+{% set etcd = {} %}
+{% for srv in groups['kube-master'] %}
+{% if inventory_hostname == srv %}
+{% set _dummy = etcd.update({'name':"master"+loop.index|string}) %}
+{% endif %}
+{% endfor %}
[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_ADVERTISE_CLIENT_URLS=http://{{ hostvars[inventory_hostname]['ip'] | default( ansible_default_ipv4.address) }}:2379"
+Environment="ETCD_INITIAL_ADVERTISE_PEER_URLS=http://{{ hostvars[inventory_hostname]['ip'] | default( ansible_default_ipv4.address) }}:2380"
+Environment="ETCD_INITIAL_CLUSTER={% for srv in groups['kube-master'] %}master{{ loop.index|string }}=http://{{ srv }}:2380{% if not loop.last %},{% endif %}{% endfor %}"
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 %}
+Environment="ETCD_LISTEN_CLIENT_URLS=http://{{ hostvars[inventory_hostname]['ip'] | default( ansible_default_ipv4.address) }}:2379,http://127.0.0.1:2379"
+Environment="ETCD_LISTEN_PEER_URLS=http://{{ hostvars[inventory_hostname]['ip'] | default( ansible_default_ipv4.address) }}:2380"
+Environment="ETCD_NAME={{ etcd.name }}"
--
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