New recipe: Nextcloud with MariaDB.

.recipes/nextcloud_mariadb/storage/volumes/mysql/.gitignore

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+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/nextcloud_mariadb/storage/volumes/mysql_conf_d/mariadb.cnf.optional

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+# MariaDB 11.x settings according to the Nextcloud stack (optional).
+# See also:
+# https://gist.github.com/fevangelou/fb72f36bbe333e059b66
+# https://github.com/major/MySQLTuner-perl
+
+[mysqld]
+
+# https://gist.github.com/fevangelou/fb72f36bbe333e059b66
+# consider https://github.com/major/MySQLTuner-perl
+innodb_buffer_pool_size         = 2G	# 70-80% of memory available for MySQL/MariaDB
+innodb_buffer_pool_instances    = 2	# Use 1 instance per 1GB of InnoDB pool size
+innodb_file_per_table           = 1
+innodb_flush_log_at_trx_commit  = 0
+innodb_flush_method             = O_DIRECT
+innodb_log_buffer_size		= 64M
+innodb_log_file_size		= 256M	# should be 25% of innodb_buffer_pool_size / 2
+innodb_stats_on_metadata	= 0
+# https://mariadb.com/kb/en/configuring-mariadb-for-optimal-performance/
+# we practically don't use the MyISAM engine
+key_buffer_size	= 10M
+# https://mariadb.com/kb/en/mariadb-memory-allocation/#query-cache
+query_cache_type	= 0
+query_cache_size	= 0
+#query_cache_type	= ON
+#query_cache_size	= 10M
+#query_cache_limit	= 1M
+
+# Buffer Settings
+#sort_buffer_size	= 1M
+#join_buffer_size	= 1M

.recipes/nextcloud_mariadb/storage/volumes/mysql_init_d/.gitignore

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+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/nextcloud_mariadb/storage/volumes/nextcloud_data/.gitignore

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+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/nextcloud_mariadb/storage/volumes/nextcloud_html/.gitignore

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+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/nextcloud_mariadb/storage/volumes/nextcloud_init.d/.gitignore

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+# Ignore everything in this directory except this file.
+*
+!.gitignore