From 49cd3fb5b0bde0e0caf85d09bef4afe52d96889b Mon Sep 17 00:00:00 2001
From: Eric Morino <emorino@evolix.fr>
Date: Mon, 3 Apr 2023 16:04:50 +0200
Subject: [PATCH] =?UTF-8?q?cr=C3=A9ation=20role=20etcd?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 etcd/README.md          |  3 +++
 etcd/defaults/main.yml  | 11 +++++++++++
 etcd/tasks/config.yml   | 10 ++++++++++
 etcd/tasks/packages.yml | 15 +++++++++++++++
 etcd/templates/etcd.j2  | 10 ++++++++++
 5 files changed, 49 insertions(+)
 create mode 100644 etcd/README.md
 create mode 100644 etcd/defaults/main.yml
 create mode 100644 etcd/tasks/config.yml
 create mode 100644 etcd/tasks/packages.yml
 create mode 100644 etcd/templates/etcd.j2

diff --git a/etcd/README.md b/etcd/README.md
new file mode 100644
index 00000000..7dacc49e
--- /dev/null
+++ b/etcd/README.md
@@ -0,0 +1,3 @@
+# Etcd
+
+Installation and basic configuration of etcd for integrate in a Patroni and PostgreSQL cluster.
diff --git a/etcd/defaults/main.yml b/etcd/defaults/main.yml
new file mode 100644
index 00000000..890012d1
--- /dev/null
+++ b/etcd/defaults/main.yml
@@ -0,0 +1,11 @@
+---
+
+# Define variable for etcd
+etcd_listen_ip: []
+etcd_cluster_ips: []
+etcd_client_port: "2379"
+etcd_peer_port: "2380"
+etcd_local_name : ""
+etcd_cluster_token : ""
+etcd_datadir : "/var/lib/etcd/{{ etcd_cluster_token }}"
+etcd_initial_cluster: ""
diff --git a/etcd/tasks/config.yml b/etcd/tasks/config.yml
new file mode 100644
index 00000000..9beec617
--- /dev/null
+++ b/etcd/tasks/config.yml
@@ -0,0 +1,10 @@
+---
+
+- name: Create etcd config file
+  ansible.builtin.template:
+    src: etcd.j2
+    dest: /etc/default/etcd
+    owner: root
+    group: root
+    mode: "0644"
+
diff --git a/etcd/tasks/packages.yml b/etcd/tasks/packages.yml
new file mode 100644
index 00000000..e6552ac9
--- /dev/null
+++ b/etcd/tasks/packages.yml
@@ -0,0 +1,15 @@
+---
+
+- name: Install etcd client / server package
+  ansible.builtin.apt:
+    name:
+      - etcd-client
+      - etcd-server
+    update_cache: yes
+
+- name: Install python dependencies for Patroni
+  ansible.builtin.apt:
+    name:
+      - python3-etcd
+      - python3-psycopg2
+  when: patroni_install_dependencies | bool
diff --git a/etcd/templates/etcd.j2 b/etcd/templates/etcd.j2
new file mode 100644
index 00000000..0e9ac1ba
--- /dev/null
+++ b/etcd/templates/etcd.j2
@@ -0,0 +1,10 @@
+ETCD_NAME="{{ etcd_local_name }}"
+ETCD_DATA_DIR="{{ etcd_datadir }}"
+ETCD_LOG_OUTPUTS="stdout"
+ETCD_LISTEN_PEER_URLS="http://{{ etcd_peer_hosts }}:{{ etcd_peer_port }}"
+ETCD_LISTEN_CLIENT_URLS="http://localhost:{{ etcd_client_port }},http://{{ etcd_listen_ip }}:{{ etcd_client_port }}"
+ETCD_INITIAL_ADVERTISE_PEER_URLS="http://{{ etcd_listen_ip }}:{{ etcd_peer_port }}"
+ETCD_INITIAL_CLUSTER="{{ etcd_local_name }}=http://{{ etcd_cluster_ips }}:{{ etcd_peer_port }},"
+ETCD_ADVERTISE_CLIENT_URLS="http://{{ etcd_listen_ip }}:{{ etcd_client_port }}"
+ETCD_INITIAL_CLUSTER_TOKEN="{{ etcd_cluster_token }}"
+ETCD_INITIAL_CLUSTER_STATE="new"