Add gentoo support to galera_server

Depends-On: https://review.openstack.org/633289
Change-Id: I1ba3630e3f673aab419ebaff966f88868560df3b

handlers/main.yml

@@ -16,7 +16,7 @@
 - name: Reload the systemd daemon
   systemd:
     daemon_reload: yes
-    name: mysql
+    name: "{{ mysql_service_name }}"
     enabled: "yes"
 
 - name: Check node status
@@ -70,7 +70,7 @@
 
 - name: Restart mysql (All)
   service:
-    name: mysql
+    name: "{{ mysql_service_name }}"
     state: "{{ (not hostvars[item]['galera_cluster_ready'] | bool) | ternary('started', 'restarted') }}"
   environment:
     MYSQLD_STARTUP_TIMEOUT: 180

tasks/galera_install_portage.yml

@@ -0,0 +1,39 @@
+---
+# Copyright 2019, Matthew Thode
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+- name: Install galera_server role packages
+  package:
+    name: "{{ galera_packages_list }}"
+    state: "{{ galera_server_package_state }}"
+    newuse: "{{ (ansible_pkg_mgr == 'portage') | ternary('yes', omit) }}"
+    changed_use: "{{ (ansible_pkg_mgr == 'portage') | ternary('yes', omit) }}"
+    noreplace: "{{ (ansible_pkg_mgr == 'portage') | ternary('yes', omit) }}"
+    jobs: "{{ (ansible_pkg_mgr == 'portage') | ternary('4', omit) }}"
+  register: install_remote_packages
+  until: install_remote_packages is success
+  retries: 5
+  delay: 2
+
+- name: Ensure mysql config directories exists
+  file:
+    src: "{{ item.src | default(omit) }}"
+    path: "{{ item.path }}"
+    state: "{{ item.state }}"
+    force: "{{ item.force | default(omit) }}"
+  with_items:
+    - path: "/etc/mysql"
+      state: "directory"
+    - path: "{{ galera_etc_include_dir }}"
+      state: "directory"

tasks/galera_post_install.yml

@@ -46,6 +46,7 @@
 #                  as all of these tasks will be run on Package install
 #                  and running them again will cause a conflict within
 #                  debian based deployments.
+# NOTE(prometheanfire): Ditto Gentoo ^
 - name: Create galera initial secure tool
   template:
     src: "galera_secure_node.j2"
@@ -53,6 +54,7 @@
     mode: "0750"
   when:
     - ansible_pkg_mgr != "apt"
+    - ansible_pkg_mgr != "portage"
     - not galera_upgrade
 
 - name: Run galera secure
@@ -62,6 +64,7 @@
     warn: no
   when:
     - ansible_pkg_mgr != "apt"
+    - ansible_pkg_mgr != "portage"
     - not galera_upgrade
   tags:
     - skip_ansible_lint
@@ -147,11 +150,20 @@
     - Manage LB
     - Restart all mysql
 
+# Safe to run multiple times, config has it's own checks
+- name: initialize database (gentoo)
+  command: "emerge --config dev-db/mariadb"
+  failed_when: false
+  when:
+    - ansible_pkg_mgr == 'portage'
+
 - name: Apply service defaults
   template:
     src: "mysql_defaults.j2"
     dest: "/etc/default/mariadb"
     mode: "0644"
+  when:
+    - ansible_pkg_mgr != 'portage'
   notify:
     - Manage LB
     - Restart all mysql
@@ -163,6 +175,8 @@
     dest: "/etc/default/mysql"
     state: "link"
     force: "yes"
+  when:
+    - ansible_pkg_mgr != 'portage'
 
 - name: remove default mysql_safe_syslog
   file:
@@ -170,8 +184,8 @@
     state: absent
 
 - name: Create new cluster tool
-  copy:
+  template:
-    src: "galera_new_cluster"
+    src: "galera_new_cluster.j2"
     dest: "/usr/local/bin/galera_new_cluster"
     mode: "0750"
 

tasks/galera_setup.yml

@@ -56,7 +56,7 @@
   no_log: True
 
 - name: Run MySQL Upgrade
-  command: "/usr/bin/mysql_upgrade"
+  command: "/usr/bin/mysql_upgrade -h 127.0.0.1"
   register: galera_mysql_upgrade
   changed_when:
     - not galera_mysql_upgrade.stdout | search("already upgraded")

templates/galera_new_cluster.j2

@@ -47,16 +47,16 @@ EOF
 trap cleanup EXIT INT TERM
 
 EXIT_CODE=0
-if ! systemctl status mysql > /dev/null; then
+if ! systemctl status {{ mysql_service_name }}> /dev/null; then
   systemctl set-environment _WSREP_NEW_CLUSTER='--wsrep-new-cluster'
   if grep -rniq -e suse -e opensuse /etc/os-release; then
     bootstrap_opts
   fi
-  if systemctl start mysql; then
+  if systemctl start {{ mysql_service_name }}; then
     EXIT_CODE=3
   else
     echo "Cluster bootstrap failed."
-    systemctl status mysql
+    systemctl status {{ mysql_service_name }}
     exit 99
   fi
 fi

templates/galera_secure_node.j2

@@ -17,12 +17,12 @@ set -ev
 
 STOP_MYSQL=false
 
-if ! systemctl status mysql; then
+if ! systemctl status {{ mysql_service_name }}; then
   STOP_MYSQL=true
   systemctl set-environment MYSQLD_OPTS="--bind-address=127.0.0.1"
-  systemctl start mysql
+  systemctl start {{ mysql_service_name }}
   sleep 10
-  systemctl status mysql
+  systemctl status {{ mysql_service_name }}
 fi
 
 if mysqladmin --no-defaults --port=3306 --socket=/var/run/mysqld/mysqld.sock --host=127.0.0.1 --user=root password "{{ galera_root_password }}"; then
@@ -38,7 +38,7 @@ if mysqladmin --no-defaults --port=3306 --socket=/var/run/mysqld/mysqld.sock --h
 fi
 
 if [ "${STOP_MYSQL}" = true ]; then
-  systemctl stop mysql
+  systemctl stop {{ mysql_service_name }}
 fi
 
 # Create a marker file to ensure this script is not run again

templates/my.cnf.j2

@@ -29,6 +29,7 @@ collation-server = utf8_general_ci
 init-connect = 'SET NAMES utf8'
 character-set-server = utf8
 datadir = /var/lib/mysql
+tmpdir = /var/lib/mysql
 bind-address = ::
 {% if galera_server_id is defined %}
 server-id = {{ galera_server_id }}

vars/gentoo.yml

@@ -0,0 +1,58 @@
+---
+# Copyright 2019, Matthew Thode
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+## APT Cache Options
+cache_timeout: 600
+
+# Default private device setting
+_galera_disable_privatedevices: yes
+
+galera_server_required_distro_packages:
+  - sys-apps/xinetd
+
+galera_etc_conf_file: "/etc/mysql/my.cnf"
+galera_etc_include_dir: "/etc/mysql/conf.d"
+galera_var_run_socket: "/var/run/mysqld/mysqld.sock"
+
+# The package name for mariaDB is set as a variable
+# so that it can be used in debconf later in the
+# "galera_common" role.
+_galera_mariadb_server_package: "dev-db/mariadb"
+
+# NB This is specifically galera_server_mariadb_distro_packages as these
+# packages only get installed during the galera play - this is because of
+# the preseed task and the service startup control used when installing
+# mariadb-galera-server and galera.
+galera_server_mariadb_distro_packages:
+  - "{{ galera_mariadb_server_package }}"
+  - sys-cluster/galera
+  - net-misc/rsync
+  - net-misc/socat
+  - dev-python/mysql-python
+
+# The packages to uninstall during an upgrade from a previous version
+galera_server_upgrade_packages_remove:
+
+galera_mariadb_service_name: "mariadb"
+
+galera_server_percona_distro_packages:
+  - dev-db/percona-toolkit
+  - dev-db/percona-xtrabackup-bin
+  - "{{ (galera_xtrabackup_compression | bool) | ternary('app-arch/qpress', '') }}"
+
+galera_wsrep_provider: "/usr/lib64/galera/libgalera_smm.so"
+
+_use_percona_upstream: no
+mysql_service_name: mariadb

vars/main.yml

@@ -0,0 +1 @@
+mysql_service_name: mysql