update the etcd version (use API v3)

Author: vitabaks

roles/confd/templates/confd.toml.j2

@@ -1,4 +1,4 @@
-backend = "etcd"
+backend = "etcdv3"
 interval = 10
 watch = true
 nodes = [

roles/etcd/tasks/main.yml

@@ -116,21 +116,19 @@
 
 - block:
     - name: Wait until the etcd cluster is healthy
-      command: /usr/local/bin/etcdctl cluster-health
-      environment:
-        ETCDCTL_API: 2
+      command: >
+        /usr/local/bin/etcdctl endpoint health
+        --endpoints=http://{{ inventory_hostname }}:2379
       register: etcd_health_result
-      run_once: true
-      changed_when: false
-      until: "'cluster is healthy' in etcd_health_result.stdout"
+      until: "'is healthy' in etcd_health_result.stdout"
       retries: 10
       delay: 10
+      changed_when: false
       ignore_errors: false
 
     - name: cluster health
-      run_once: true
       debug:
-        var: etcd_health_result.stdout_lines
+        msg: "{{ etcd_health_result.stdout }}"
   tags: etcd, etcd_start, etcd_status
 
 ...

roles/etcd/templates/etcd.conf.j2

@@ -10,4 +10,3 @@ ETCD_DATA_DIR="{{ etcd_data_dir }}"
 ETCD_ELECTION_TIMEOUT="5000"
 ETCD_HEARTBEAT_INTERVAL="1000"
 ETCD_INITIAL_ELECTION_TICK_ADVANCE="false"
-ETCD_ENABLE_V2="true"

roles/patroni/templates/patroni.yml.j2

@@ -30,11 +30,11 @@ restapi:
 #    password: password
 
 {% if not dcs_exists|bool and dcs_type == 'etcd' %}
-etcd:
+etcd3:
   hosts: {% for host in groups['etcd_cluster'] %}{{ hostvars[host]['inventory_hostname'] }}:2379{% if not loop.last %},{% endif %}{% endfor %}
 {% endif %}
 {% if dcs_exists|bool and dcs_type == 'etcd' %}
-etcd:
+etcd3:
   hosts: {% for etcd_hosts in patroni_etcd_hosts %}{{etcd_hosts.host}}:{{etcd_hosts.port}}{% if not loop.last %},{% endif %}{% endfor %}
 {% endif %}
 

vars/Debian.yml

@@ -58,7 +58,7 @@ postgresql_packages:
 #  - postgresql-{{ postgresql_version }}-repack"
 
 # Extra packages
-etcd_package_repo: "https://github.com/etcd-io/etcd/releases/download/{{ etcd_ver }}/etcd-{{ etcd_ver }}-linux-amd64.tar.gz"
+etcd_package_repo: "https://github.com/etcd-io/etcd/releases/download/v{{ etcd_ver }}/etcd-v{{ etcd_ver }}-linux-amd64.tar.gz"
 vip_manager_package_repo: "https://github.com/cybertec-postgresql/vip-manager/releases/download/v{{ vip_manager_version }}/vip-manager_{{ vip_manager_version }}-1_amd64.deb"
 # (if with_haproxy_load_balancing: true)
 haproxy_installation_method: "deb"  # (default)"deb" or "src"

vars/RedHat.yml

@@ -79,7 +79,7 @@ postgresql_packages:
 #  - pg_repack{{ postgresql_version_terse }}
 
 # Extra packages
-etcd_package_repo: "https://github.com/etcd-io/etcd/releases/download/{{ etcd_ver }}/etcd-{{ etcd_ver }}-linux-amd64.tar.gz"
+etcd_package_repo: "https://github.com/etcd-io/etcd/releases/download/v{{ etcd_ver }}/etcd-v{{ etcd_ver }}-linux-amd64.tar.gz"
 vip_manager_package_repo: "https://github.com/cybertec-postgresql/vip-manager/releases/download/v{{ vip_manager_version }}/vip-manager-{{ vip_manager_version }}-1.x86_64.rpm"
 # (if with_haproxy_load_balancing: true)
 haproxy_installation_method: "rpm"  # (default)"rpm" or "src"

vars/main.yml

@@ -52,7 +52,7 @@ dcs_exists: false  # or 'true' if you don't want to deploy a new etcd cluster
 dcs_type: "etcd"  # or 'consul'
 
 # if dcs_type: "etcd" and dcs_exists: false
-etcd_ver: "v3.3.27"  # version for deploy etcd cluster
+etcd_ver: "3.5.7"  # version for deploy etcd cluster
 etcd_data_dir: "/var/lib/etcd"
 etcd_cluster_name: "etcd-{{ patroni_cluster_name }}"  # ETCD_INITIAL_CLUSTER_TOKEN