Merge pull request #18 from jaspernbrouwer/debian-stretch-2

Improvements for MariaDB on Debian Stretch

defaults/main.yml

@@ -13,6 +13,9 @@ mysql_upstream_apt_src: false
 # Configuration
 # -------------------------------------
 
+# MySQL configuration template
+mysql_config_template: 'etc/mysql/my.cnf.j2'
+
 # MySQL connection settings.
 mysql_port: "3306"
 mysql_bind_address: '127.0.0.1'
@@ -40,12 +43,12 @@ mysql_query_cache_size: '16M'
 mysql_wait_timeout: 28800
 
 # Try number of CPU's * 2 for thread_concurrency.
-mysql_thread_concurrency: 2
+mysql_thread_concurrency: "{{ ansible_processor_cores * 2 }}"
 
 # InnoDB settings.
 mysql_innodb_file_per_table: '1'
 mysql_innodb_buffer_pool_size: "{{ (ansible_memtotal_mb * 0.2) | round | int }}M"
-mysql_innodb_log_file_size: '64M'
+mysql_innodb_log_file_size: "{% if ansible_distribution_release == 'jessie' and mysql_vendor == 'mysql' %}5M{% else %}64M{% endif %}" # If this setting changes on a running system, you will break it! http://dev.mysql.com/doc/refman/5.6/en/innodb-data-log-reconfiguration.html
 mysql_innodb_log_buffer_size: '8M'
 mysql_innodb_flush_log_at_trx_commit: '1'
 mysql_innodb_lock_wait_timeout: 50
@@ -124,8 +127,11 @@ mysql_users: []
 # MariaDB
 # -------------------------------------
 mysql_mariadb_version: '10.1'
-# See: http://mariadb.org/mariadb/repositories/
+mysql_mariadb_mirror_domain: "ftp.igh.cnrs.fr"
-mysql_mariadb_repository: "http://ftp.igh.cnrs.fr/pub/mariadb/repo/{{ mysql_mariadb_version }}/debian"
+# See: https://downloads.mariadb.org/mariadb/repositories
+mysql_mariadb_repository: "http://{{ mysql_mariadb_mirror_domain }}/pub/mariadb/repo/{{ mysql_mariadb_version }}/debian"
+mysql_mariadb_key_server: "keyserver.ubuntu.com"
+mysql_mariadb_key_ids: ['0xcbcb082a1bb943db', '0xf1656f24c74cd1d8']
 
 # -------------------------------------
 # Percona

tasks/install/mariadb/upstream.yml

@@ -1,13 +1,16 @@
 ---
 
-- name: APT | Install MariaDB key
+- name: APT_KEY | Install MariaDB key
-  apt_key: keyserver="keyserver.ubuntu.com" id={{ item }} state=present
+  apt_key: keyserver="{{ mysql_mariadb_key_server }}" id={{ item }} state=present
-  with_items: ['0xcbcb082a1bb943db', '0xf1656f24c74cd1d8']
+  with_items: "{{ mysql_mariadb_key_ids }}"
 
-- name: APT | Add MariaDB repository
+- name: TEMPLATE | Deploy APT pinning (prevent upgrades from Debian)
+  template: src=etc/apt/preferences.d/95-mariadb.j2 dest=/etc/apt/preferences.d/95-mariadb
+
+- name: APT_REPOSITORY | Add MariaDB repository
   apt_repository: repo='deb {{ mysql_mariadb_repository }} {{ ansible_distribution_release }} main' state=present
 
-- name: APT | Add MariaDB (src) repository
+- name: APT_REPOSITORY | Add MariaDB (src) repository
   apt_repository: repo='deb-src {{ mysql_mariadb_repository }} {{ ansible_distribution_release }} main' state=present
   when: mysql_upstream_apt_src
 

tasks/main.yml

@@ -12,7 +12,7 @@
   include: install/main.yml
 
 - name: TEMPLATE | Deploy configuration
-  template: src=etc/mysql/my.cnf.j2 dest=/etc/mysql/my.cnf
+  template: "src={{ mysql_config_template }} dest=/etc/mysql/my.cnf"
   register: config
 
 - name: TEMPLATE | Deploy extra configuration

templates/etc/apt/preferences.d/95-mariadb.j2

@@ -0,0 +1,6 @@
+# {{ ansible_managed }}
+
+Explanation: Prevent Debian upgrades on mariadb packages
+Package: *
+Pin: origin {{ mysql_mariadb_mirror_domain }}
+Pin-Priority: 1000

templates/etc/mysql/my.cnf.j2

@@ -12,28 +12,28 @@ bind-address = {{ mysql_bind_address }}
 datadir = {{ mysql_datadir }}
 socket = {{ mysql_socket }}
 
-# TODO: FIX later
+{# TODO: FIX later #}
 # Logging configuration.
-#{% if mysql_log_error == 'syslog' or mysql_log == 'syslog' %}
+{% if mysql_log_error == 'syslog' or mysql_log == 'syslog' %}
-#syslog
+syslog
-#syslog-tag = {{ mysql_syslog_tag }}
+syslog-tag = {{ mysql_syslog_tag }}
-#{% else %}
+{% else %}
-#{% if mysql_log %}
+{% if mysql_log %}
-#log = {{ mysql_log }}
+log = {{ mysql_log }}
-#{% endif %}
+{% endif %}
-#log-error = {{ mysql_log_error }}
+log-error = {{ mysql_log_error }}
-#{% endif %}
+{% endif %}
 
 {% if mysql_slow_query_log_enabled %}
 # Slow query log configuration.
+{% if mysql_vendor not in ['mariadb', 'mariadbgalera'] or mysql_mariadb_version | version_compare('10.0', '<') %}
 log_slow_queries = 1
+{% endif %}
 slow_query_log = 1
 slow_query_log_file = {{ mysql_slow_query_log_file }}
 long_query_time = {{ mysql_slow_query_time }}
 {% endif %}
 
-
-
 # Disabling symbolic-links is recommended to prevent assorted security risks
 symbolic-links = 0
 
@@ -63,11 +63,13 @@ thread_concurrency = {{ mysql_thread_concurrency }}
 # InnoDB settings.
 innodb_file_per_table = {{ mysql_innodb_file_per_table }}
 innodb_buffer_pool_size = {{ mysql_innodb_buffer_pool_size }}
-# It craches after install (mysql 5.5)... TODO FIX -> http://dev.mysql.com/doc/refman/5.6/en/innodb-data-log-reconfiguration.html
+innodb_log_buffer_size = {{ mysql_innodb_log_buffer_size }}
-#innodb_log_file_size = {{ mysql_innodb_log_file_size }}
-#innodb_log_buffer_size = {{ mysql_innodb_log_buffer_size }}
 innodb_flush_log_at_trx_commit = {{ mysql_innodb_flush_log_at_trx_commit }}
 innodb_lock_wait_timeout = {{ mysql_innodb_lock_wait_timeout }}
+{# If this setting changes on a running system, you will break it! #}
+{# See how tho change it here: http://dev.mysql.com/doc/refman/5.6/en/innodb-data-log-reconfiguration.html #}
+{# TODO FIX -> Maybe detect a change and fail, just to be safe? #}
+innodb_log_file_size = {{ mysql_innodb_log_file_size }}
 
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