Add mariadb_clustercheck image

Add mariadb_clustercheck image with xinetd and clustercheck binary for haproxy
checking of galera status.
Reorganise existing mariadb images by creating mariadb-base and mariadb-server.

Existing mariadb image will be deprecated (in a separate change).

Change-Id: Ib601f64e1514521154beeaac40f0c058a7119408

docker/mariadb/mariadb-base/Dockerfile.j2

@@ -0,0 +1,28 @@
+FROM {{ namespace }}/{{ image_prefix }}base:{{ tag }}
+{% block labels %}
+LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build_date }}"
+{% endblock %}
+
+{% block mariadb_base_header %}{% endblock %}
+
+{% import "macros.j2" as macros with context %}
+
+{{ macros.configure_user(name='mysql') }}
+
+{{ macros.enable_extra_repos(['mariadb']) }}
+
+{% if base_package_type == 'rpm' %}
+    {% set mariadb_base_packages = [
+        'mariadb',
+    ] %}
+
+{% elif base_package_type == 'deb' %}
+    {% set mariadb_base_packages = [
+        'mariadb-client',
+    ] %}
+{% endif %}
+
+{{ macros.install_packages(mariadb_base_packages | customizable("packages")) }}
+
+{% block mariadb_base_footer %}{% endblock %}
+{% block footer %}{% endblock %}

docker/mariadb/mariadb-clustercheck/Dockerfile.j2

@@ -0,0 +1,28 @@
+FROM {{ namespace }}/{{ image_prefix }}mariadb-base:{{ tag }}
+LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build_date }}"
+
+{% block mariadb_clustercheck_header %}{% endblock %}
+
+{% import "macros.j2" as macros with context %}
+
+{% if base_package_type == 'rpm' %}
+    {% set mariadb_clustercheck_packages = [
+        'mariadb-server-galera',
+        'xinetd'
+    ] %}
+
+{% elif base_package_type == 'deb' %}
+    {% set mariadb_clustercheck_packages = [
+        'xinetd'
+    ] %}
+{% endif %}
+
+{{ macros.install_packages(mariadb_clustercheck_packages | customizable("packages")) }}
+
+{% if base_package_type == 'deb' %}
+RUN curl -sSL -o /usr/bin/clustercheck https://src.fedoraproject.org/rpms/mariadb/raw/10.3/f/clustercheck.sh \
+    && chmod 755 /usr/bin/clustercheck
+{% endif %}
+
+{% block mariadb_clustercheck_footer %}{% endblock %}
+{% block footer %}{% endblock %}

docker/mariadb/mariadb-server/Dockerfile.j2

@@ -0,0 +1,79 @@
+FROM {{ namespace }}/{{ image_prefix }}mariadb-base:{{ tag }}
+{% block labels %}
+LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build_date }}"
+{% endblock %}
+
+{% block mariadb_header %}{% endblock %}
+
+{% import "macros.j2" as macros with context %}
+
+{{ macros.configure_user(name='mysql') }}
+
+{# NOTE(mgoddard): EPEL required for pv package #}
+{{ macros.enable_extra_repos(['epel', 'mariadb']) }}
+
+{% if base_package_type == 'rpm' %}
+    {% set mariadb_packages = [
+        'expect',
+        'galera',
+        'hostname',
+        'mariadb-backup',
+        'mariadb-server-galera',
+        'mariadb-server-utils',
+        'pv',
+        'rsync',
+        'tar'
+    ] %}
+
+{% elif base_package_type == 'deb' %}
+    {% set mariadb_packages = [
+        'expect',
+        'mariadb-backup',
+        'mariadb-server'
+    ] %}
+{% endif %}
+
+{{ macros.install_packages(mariadb_packages | customizable("packages")) }}
+
+COPY mariadb_sudoers /etc/sudoers.d/kolla_mariadb_sudoers
+COPY extend_start.sh /usr/local/bin/kolla_extend_start
+COPY security_reset.expect /usr/local/bin/kolla_security_reset
+RUN chmod 755 /usr/local/bin/kolla_extend_start \
+    && chmod 755 /usr/local/bin/kolla_security_reset \
+    && chmod 750 /etc/sudoers.d \
+    && chmod 440 /etc/sudoers.d/kolla_mariadb_sudoers \
+    && rm -rf /var/lib/mysql/*
+
+{% if base_package_type == 'deb' %}
+RUN mkdir -p /var/run/mysqld && chown mysql /var/run/mysqld && chmod 755 /var/run/mysqld
+{% endif %}
+
+COPY backup.sh /usr/local/bin/kolla_mariadb_backup.sh
+RUN chmod 755 /usr/local/bin/kolla_mariadb_backup.sh
+
+{% if docker_healthchecks %}
+{% block healthcheck_installation %}
+
+COPY healthcheck_mariadb /usr/local/bin/healthcheck_mariadb
+RUN chmod 755 /usr/local/bin/healthcheck_mariadb
+
+{% endblock %}
+{% endif %}
+
+{% if use_dumb_init %}
+{% block mariadb_entrypoint %}
+# NOTE(mgoddard): Override the dumb-init arguments to avoid passing
+# --single-child. This does not play well with mysqld_safe, which ignores
+# SIGTERM, meaning Docker needs to forcibly kill the container to stop it.
+# Without --single-child, the TERM signal is sent to all subprocesses,
+# including mysqld.
+
+ENTRYPOINT ["dumb-init", "--"]
+CMD ["kolla_start"]
+{% endblock %}
+{% endif %}
+
+{% block mariadb_footer %}{% endblock %}
+{% block footer %}{% endblock %}
+
+USER mysql

docker/mariadb/mariadb/backup.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+
+set -eu
+set -o pipefail
+
+# Execute a full backup
+backup_full() {
+    echo "Taking a full backup"
+    mariabackup \
+        --defaults-file=/etc/mysql/my.cnf \
+        --backup \
+        --stream=xbstream \
+        --history=$(date +%d-%m-%Y) | gzip > \
+        $BACKUP_DIR/mysqlbackup-$(date +%d-%m-%Y-%s).qp.xbc.xbs.gz
+}
+
+# Execute an incremental backup
+backup_incremental() {
+    echo "Taking an incremental backup"
+    mariabackup \
+        --defaults-file=/etc/mysql/my.cnf \
+        --backup \
+        --stream=xbstream \
+        --incremental-history-name=$(date +%d-%m-%Y) \
+        --history=$(date +%d-%m-%Y) | gzip > \
+        $BACKUP_DIR/incremental-$(date +%H)-mysqlbackup-$(date +%d-%m-%Y-%s).qp.xbc.xbs.gz
+}
+
+BACKUP_DIR=/backup/
+cd $BACKUP_DIR
+
+if [ -n $BACKUP_TYPE ]; then
+    case $BACKUP_TYPE in
+        "full")
+        backup_full
+        ;;
+        "incremental")
+        backup_incremental
+        ;;
+        *)
+        echo "Only full or incremental options are supported."
+        exit 1
+        ;;
+    esac
+else
+    echo "You need to specify either full or incremental backup options."
+    exit 1
+fi

docker/mariadb/mariadb/extend_start.sh

@@ -0,0 +1,58 @@
+#!/bin/bash
+
+: ${MARIADB_LOG_DIR:=/var/log/kolla/mariadb}
+
+function bootstrap_db {
+    mysqld_safe --wsrep-new-cluster --skip-networking --wsrep-on=OFF --pid-file=/var/lib/mysql/mariadb.pid &
+    # Wait for the mariadb server to be "Ready" before starting the security reset with a max timeout
+    # NOTE(huikang): the location of mysql's socket file varies depending on the OS distributions.
+    # Querying the cluster status has to be executed after the existence of mysql.sock and mariadb.pid.
+    TIMEOUT=${DB_MAX_TIMEOUT:-60}
+    while [[ ! -S /var/lib/mysql/mysql.sock ]] && \
+          [[ ! -S /var/run/mysqld/mysqld.sock ]] || \
+          [[ ! -f /var/lib/mysql/mariadb.pid ]]; do
+        if [[ ${TIMEOUT} -gt 0 ]]; then
+            let TIMEOUT-=1
+            sleep 1
+        else
+            exit 1
+        fi
+    done
+
+    sudo -E kolla_security_reset
+    mysql -u root --password="${DB_ROOT_PASSWORD}" -e "GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY '${DB_ROOT_PASSWORD}' WITH GRANT OPTION;"
+    mysql -u root --password="${DB_ROOT_PASSWORD}" -e "GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '${DB_ROOT_PASSWORD}' WITH GRANT OPTION;"
+    mysqladmin -uroot -p"${DB_ROOT_PASSWORD}" shutdown
+}
+
+# Create log directory, with appropriate permissions
+if [[ ! -d "${MARIADB_LOG_DIR}" ]]; then
+    mkdir -p ${MARIADB_LOG_DIR}
+fi
+if [[ $(stat -c %a ${MARIADB_LOG_DIR}) != "755" ]]; then
+    chmod 755 ${MARIADB_LOG_DIR}
+fi
+
+# This catches all cases of the BOOTSTRAP variable being set, including empty
+if [[ "${!KOLLA_BOOTSTRAP[@]}" ]]; then
+    mysql_install_db
+    bootstrap_db
+    exit 0
+fi
+
+# This catches all cases of the KOLLA_UPGRADE variable being set, including empty
+if [[ "${!KOLLA_UPGRADE[@]}" ]]; then
+    # The mysql_upgrade command treats any directories under /var/lib/mysql as
+    # databases. Somehow we can end up with a .pki directory, which causes the
+    # command to fail with this error:
+    # Incorrect database name '#mysql50#.pki' when selecting the database
+    # There doesn't seem to be anything in the directory, so remove it.
+    rm -rf /var/lib/mysql/.pki
+
+    mysql_upgrade --host=${DB_HOST} --port=${DB_PORT} --user=root --password="${DB_ROOT_PASSWORD}"
+    exit 0
+fi
+
+if [[ "${!BOOTSTRAP_ARGS[@]}" ]]; then
+    ARGS="${BOOTSTRAP_ARGS}"
+fi

docker/mariadb/mariadb/healthcheck_mariadb

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+MYSQL_USERNAME="${MYSQL_USERNAME:=-haproxy}"
+MYSQL_TIMEOUT=10
+
+MYSQL_CMDLINE="mysql -nNE --connect-timeout=${MYSQL_TIMEOUT} -u ${MYSQL_USERNAME}"
+
+WSREP_STATUS=$($MYSQL_CMDLINE -e "SHOW STATUS LIKE 'wsrep_local_state_comment';")
+
+if [[ "${WSREP_STATUS}" == "Synced" ]]
+then
+    echo "MariaDB Galera Cluster Node is synced."
+    exit 0
+else
+    echo "MariaDB Galera Cluster Node is NOT synced"
+    exit 0
+fi

docker/mariadb/mariadb/mariadb_sudoers

@@ -0,0 +1 @@
+%kolla ALL=(root) NOPASSWD: /usr/local/bin/kolla_security_reset

docker/mariadb/mariadb/security_reset.expect

@@ -0,0 +1,58 @@
+#!/usr/bin/expect -f
+
+if [catch {set timeout $env(DB_MAX_TIMEOUT)}] {set timeout 10}
+spawn mysql_secure_installation
+expect {
+  timeout { send_user "\nFailed to get 'Enter current password for root (enter for none):' prompt\n"; exit 1 }
+  eof { send_user "\nFailed to get 'Enter current password for root (enter for none):' prompt\n"; exit 1 }
+  "Enter current password for root (enter for none):"
+}
+send "\r"
+expect {
+  timeout { send_user "\nFailed to get 'Set root password?' prompt\n"; exit 1 }
+  eof { send_user "\nFailed to get 'Set root password?' prompt\n"; exit 1 }
+  "Set root password?"
+}
+send "y\r"
+expect {
+  timeout { send_user "\nFailed to get 'New password:' prompt\n"; exit 1 }
+  eof { send_user "\nFailed to get 'New password:' prompt\n"; exit 1 }
+  "New password:"
+}
+send "$env(DB_ROOT_PASSWORD)\r"
+
+expect {
+  timeout { send_user "\nFailed to get 'Re-enter new password:' prompt\n"; exit 1 }
+  eof { send_user "\nFailed to get 'Re-enter new password:' prompt\n"; exit 1 }
+  "Re-enter new password:"
+}
+send "$env(DB_ROOT_PASSWORD)\r"
+
+expect {
+  timeout { send_user "\nFailed to get 'Remove anonymous users?' prompt\n"; exit 1 }
+  eof { send_user "\nFailed to get 'Remove anonymous users?' prompt\n"; exit 1 }
+  "Remove anonymous users?"
+}
+send "y\r"
+
+expect {
+  timeout { send_user "\nFailed to get 'Disallow root login remotely?' prompt\n"; exit 1 }
+  eof { send_user "\nFailed to get 'Disallow root login remotely?' prompt\n"; exit 1 }
+  "Disallow root login remotely?"
+}
+send "n\r"
+
+expect {
+  timeout { send_user "\nFailed to get 'Remove test database and access to it?' prompt\n"; exit 1 }
+  eof { send_user "\nFailed to get 'Remove test database and access to it?' prompt\n"; exit 1 }
+  "Remove test database and access to it?"
+}
+send "y\r"
+
+expect {
+  timeout { send_user "\nFailed to get 'Reload privilege tables now?' prompt\n"; exit 1 }
+  eof { send_user "\nFailed to get 'Reload privilege tables now?' prompt\n"; exit 1 }
+  "Reload privilege tables now?"
+}
+send "y\r"
+expect eof