Added role for mysql DB (mariadb) and init scripts (still TBT). Changes to conductor setup generalizing vars to JDBC. Also added cluster-replacement version.

ansible/roles/conductor/tasks/main.yaml

@@ -13,22 +13,22 @@
     dest: "{{ target_path }}/conductor-swarm.yaml"
 
 - name: Generate conductor config from dynomite seeds
-  when: not use_postgres
+  when: not use_jdbc
   vars:
     seeds: "{{ lookup('file', '{{ target_path}}/seeds.list').splitlines() }}"
   template:
     src: "templates/{{ conductor_config_template }}"
     dest: "{{ target_path }}/{{ conductor_config }}"
 
-- name: Generate conductor config for postgres DB
-  when: use_postgres
+- name: Generate conductor config for JDBC DB
+  when: use_jdbc
   template:
     src: "templates/{{ conductor_config_template }}"
     dest: "{{ target_path }}/{{ conductor_config }}"
 
-- name: Copy conductor SQL schema init for postgres DB
-  when: use_postgres and init_db
+- name: Copy conductor SQL schema init for JDBC DB
+  when: use_jdbc and init_db
   template:
-    src: "templates/conductor-db-init-postgres.sql"
+    src: "templates/conductor-db-init-{{ conductor_db }}.sql"
     dest: "{{ target_path }}/conductor-db-init.sql"
 

ansible/roles/conductor/templates/conductor-db-init-mysql.sql

@@ -0,0 +1,242 @@
+-- V1__initial_schema.sql --
+-- --------------------------------------------------------------------------------------------------------------
+-- SCHEMA FOR METADATA DAO
+-- --------------------------------------------------------------------------------------------------------------
+
+CREATE TABLE meta_event_handler (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  name varchar(255) NOT NULL,
+  event varchar(255) NOT NULL,
+  active boolean NOT NULL,
+  json_data mediumtext NOT NULL,
+  PRIMARY KEY (id),
+  KEY event_handler_name_index (name),
+  KEY event_handler_event_index (event)
+);
+
+CREATE TABLE meta_task_def (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  name varchar(255) NOT NULL,
+  json_data mediumtext NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_task_def_name (name)
+);
+
+CREATE TABLE meta_workflow_def (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  name varchar(255) NOT NULL,
+  version int(11) NOT NULL,
+  latest_version int(11) NOT NULL DEFAULT 0,
+  json_data mediumtext NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_name_version (name,version),
+  KEY workflow_def_name_index (name)
+);
+
+-- --------------------------------------------------------------------------------------------------------------
+-- SCHEMA FOR EXECUTION DAO
+-- --------------------------------------------------------------------------------------------------------------
+
+CREATE TABLE event_execution (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  event_handler_name varchar(255) NOT NULL,
+  event_name varchar(255) NOT NULL,
+  message_id varchar(255) NOT NULL,
+  execution_id varchar(255) NOT NULL,
+  json_data mediumtext NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_event_execution (event_handler_name,event_name,message_id)
+);
+
+CREATE TABLE poll_data (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  queue_name varchar(255) NOT NULL,
+  domain varchar(255) NOT NULL,
+  json_data mediumtext NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_poll_data (queue_name,domain),
+  KEY (queue_name)
+);
+
+CREATE TABLE task_scheduled (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  workflow_id varchar(255) NOT NULL,
+  task_key varchar(255) NOT NULL,
+  task_id varchar(255) NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_workflow_id_task_key (workflow_id,task_key)
+);
+
+CREATE TABLE task_in_progress (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  task_def_name varchar(255) NOT NULL,
+  task_id varchar(255) NOT NULL,
+  workflow_id varchar(255) NOT NULL,
+  in_progress_status boolean NOT NULL DEFAULT false,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_task_def_task_id1 (task_def_name,task_id)
+);
+
+CREATE TABLE task (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  task_id varchar(255) NOT NULL,
+  json_data mediumtext NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_task_id (task_id)
+);
+
+CREATE TABLE workflow (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  workflow_id varchar(255) NOT NULL,
+  correlation_id varchar(255),
+  json_data mediumtext NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_workflow_id (workflow_id)
+);
+
+CREATE TABLE workflow_def_to_workflow (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  workflow_def varchar(255) NOT NULL,
+  date_str integer NOT NULL,
+  workflow_id varchar(255) NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_workflow_def_date_str (workflow_def,date_str,workflow_id)
+);
+
+CREATE TABLE workflow_pending (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  workflow_type varchar(255) NOT NULL,
+  workflow_id varchar(255) NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_workflow_type_workflow_id (workflow_type,workflow_id),
+  KEY workflow_type_index (workflow_type)
+);
+
+CREATE TABLE workflow_to_task (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  modified_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  workflow_id varchar(255) NOT NULL,
+  task_id varchar(255) NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_workflow_to_task_id (workflow_id,task_id),
+  KEY workflow_id_index (workflow_id)
+);
+
+-- --------------------------------------------------------------------------------------------------------------
+-- SCHEMA FOR QUEUE DAO
+-- --------------------------------------------------------------------------------------------------------------
+
+CREATE TABLE queue (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  queue_name varchar(255) NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_queue_name (queue_name)
+);
+
+CREATE TABLE queue_message (
+  id int(11) unsigned NOT NULL AUTO_INCREMENT,
+  created_on TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  deliver_on TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  queue_name varchar(255) NOT NULL,
+  message_id varchar(255) NOT NULL,
+  popped boolean DEFAULT false,
+  offset_time_seconds long,
+  payload mediumtext,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_queue_name_message_id (queue_name,message_id),
+  KEY combo_queue_message (queue_name,popped,deliver_on,created_on)
+);
+
+-- V2__queue_message_timestamps.sql --
+ALTER TABLE `queue_message` CHANGE `created_on` `created_on` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;
+ALTER TABLE `queue_message` CHANGE `deliver_on` `deliver_on` TIMESTAMP DEFAULT CURRENT_TIMESTAMP;
+
+-- V3__queue_add_priority.sql --
+SET @dbname = DATABASE();
+SET @tablename = "queue_message";
+SET @columnname = "priority";
+SET @preparedStatement = (SELECT IF(
+  (
+    SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
+    WHERE
+      (table_name = @tablename)
+      AND (table_schema = @dbname)
+      AND (column_name = @columnname)
+  ) > 0,
+  "SELECT 1",
+  CONCAT("ALTER TABLE ", @tablename, " ADD ", @columnname, " TINYINT DEFAULT 0 AFTER `message_id`")
+));
+PREPARE addColumnIfNotExist FROM @preparedStatement;
+EXECUTE addColumnIfNotExist;
+DEALLOCATE PREPARE addColumnIfNotExist;
+
+-- V4__1009_Fix_MySQLExecutionDAO_Index.sql --
+# Drop the 'unique_event_execution' index if it exists
+SET @exist := (SELECT COUNT(INDEX_NAME)
+               FROM information_schema.STATISTICS
+               WHERE `TABLE_NAME` = 'event_execution'
+                 AND `INDEX_NAME` = 'unique_event_execution'
+                 AND TABLE_SCHEMA = database());
+SET @sqlstmt := IF(@exist > 0, 'ALTER TABLE `event_execution` DROP INDEX `unique_event_execution`',
+                   'SELECT ''INFO: Index already exists.''');
+PREPARE stmt FROM @sqlstmt;
+EXECUTE stmt;
+
+# Create the 'unique_event_execution' index with execution_id column instead of 'message_id' so events can be executed multiple times.
+ALTER TABLE `event_execution`
+    ADD CONSTRAINT `unique_event_execution` UNIQUE (event_handler_name, event_name, execution_id);
+
+-- V5__correlation_id_index.sql --
+# Drop the 'workflow_corr_id_index' index if it exists
+SET @exist := (SELECT COUNT(INDEX_NAME)
+               FROM information_schema.STATISTICS
+               WHERE `TABLE_NAME` = 'workflow'
+                 AND `INDEX_NAME` = 'workflow_corr_id_index'
+                 AND TABLE_SCHEMA = database());
+SET @sqlstmt := IF(@exist > 0, 'ALTER TABLE `workflow` DROP INDEX `workflow_corr_id_index`',
+                   'SELECT ''INFO: Index already exists.''');
+PREPARE stmt FROM @sqlstmt;
+EXECUTE stmt;
+
+# Create the 'workflow_corr_id_index' index with correlation_id column because correlation_id queries are slow in large databases.
+CREATE INDEX workflow_corr_id_index ON workflow (correlation_id);
+
+-- V6__new_qm_index_with_priority.sql --
+# Drop the 'combo_queue_message' index if it exists
+SET @exist := (SELECT COUNT(INDEX_NAME)
+               FROM information_schema.STATISTICS
+               WHERE `TABLE_NAME` = 'queue_message'
+                 AND `INDEX_NAME` = 'combo_queue_message'
+                 AND TABLE_SCHEMA = database());
+SET @sqlstmt := IF(@exist > 0, 'ALTER TABLE `queue_message` DROP INDEX `combo_queue_message`',
+                   'SELECT ''INFO: Index already exists.''');
+PREPARE stmt FROM @sqlstmt;
+EXECUTE stmt;
+
+# Re-create the 'combo_queue_message' index to add priority column because queries that order by priority are slow in large databases.
+CREATE INDEX combo_queue_message ON queue_message (queue_name,priority,popped,deliver_on,created_on);
+

ansible/roles/conductor/templates/conductor-swarm-config.properties.j2

@@ -8,11 +8,11 @@ conductor.grpc.server.enabled=false
 # memory : The data is stored in memory and lost when the server dies.  Useful for testing or demo
 # redis : non-Dynomite based redis instance
 # dynomite : Dynomite cluster.  Use this for HA configuration.
-{% if use_postgres is defined and use_postgres %}
-db=postgres
-jdbc.url=jdbc:postgresql://{{ postgres_service_name }}:5432/{{ postgres_db }}
-jdbc.username={{ postgres_user }}
-jdbc.password={{ postgres_pass }}
+{% if use_jdbc is defined and use_jdbc %}
+db={{ conductor_db }}
+jdbc.url={{ jdbc_url }}
+jdbc.username={{ jdbc_user }}
+jdbc.password={{ jdbc_pass }}
 conductor.postgres.connection.pool.size.max=10
 conductor.postgres.connection.pool.idle.min=2
 flyway.enabled=false

ansible/roles/mysql/defaults/main.yml

@@ -0,0 +1,10 @@
+---
+use_jdbc: True
+mysql_image_name: 'mariadb'
+mysql_service_name: 'mysqldb'
+mysql_replicas: 1
+conductor_db: mysql
+jdbc_user: conductor
+jdbc_pass: password
+jdbc_db: conductor
+jdbc_url: jdbc:mysql://{{ mysql_service_name }}:3306/{{ jdbc_db }}

ansible/roles/mysql/tasks/main.yaml

@@ -0,0 +1,5 @@
+---
+- name: "Generate mysql swarm, image used: {{ mysql_image_name }}"
+  template:
+    src: templates/mysql-swarm.yaml.j2
+    dest: "{{ target_path }}/mysql-swarm.yaml"

ansible/roles/mysql/templates/mysql-swarm.yaml.j2

@@ -0,0 +1,31 @@
+version: '3.6'
+
+services:
+
+  {{ mysql_service_name }}:
+    image: {{ mysql_image_name }}
+    ports:
+    - "3306:3306"
+    environment:
+      MYSQL_USER: "{{ jdbc_user }}"
+      MYSQL_PASSWORD: "{{ jdbc_pass }}"
+      MYSQL_DB: "{{ jdbc_db }}"
+{% if init_db %}
+    configs:
+      - source: db-init
+        target: "/docker-entrypoint-initdb.d/db-init.sql"
+{% endif %}
+    networks:
+      - {{ conductor_network }}
+    deploy:
+      replicas: {{ mysql_replicas }}
+      placement:
+        constraints: [node.role == worker]
+
+networks:
+   {{ conductor_network }}:
+{% if init_db %}
+configs:
+  db-init:
+    file: {{ target_path }}/conductor-db-init.sql
+{% endif %}

ansible/roles/postgres/defaults/main.yml

@@ -1,7 +1,9 @@
 ---
-use_postgres: True
+use_jdbc: True
 postgres_service_name: 'postgresdb'
 postgres_replicas: 1
-postgres_user: conductor
-postgres_pass: password
-postgres_db: conductor
+conductor_db: postgres
+jdbc_user: conductor
+jdbc_pass: password
+jdbc_db: conductor
+jdbc_url: jdbc:postgresql://{{ postgres_service_name }}:5432/{{ jdbc_db }}

ansible/roles/postgres/templates/postgres-swarm.yaml.j2

@@ -7,9 +7,9 @@ services:
     ports:
     - "5432:5432"
     environment:
-      POSTGRES_USER: "{{ postgres_user }}"
-      POSTGRES_PASSWORD: "{{ postgres_pass }}"
-      POSTGRES_DB: "{{ postgres_db }}"
+      POSTGRES_USER: "{{ jdbc_user }}"
+      POSTGRES_PASSWORD: "{{ jdbc_pass }}"
+      POSTGRES_DB: "{{ jdbc_db }}"
 {% if init_db %}
     configs:
       - source: db-init

ansible/site-with-mysql-cluster-replacement.yaml

@@ -0,0 +1,34 @@
+---
+- hosts: localhost
+  roles:
+    - common
+    - cluster-replacement
+    - mysql
+    - elasticsearch
+    - conductor
+  tasks:
+    - name: Start mysql and es
+      docker_stack:
+        name: conductor
+        state: present
+        compose:
+          - "{{ target_path }}/mysql-swarm.yaml"
+          - "{{ target_path }}/elasticsearch-swarm.yaml"
+    - name: Waiting for mysql and es DBs
+      pause:
+        seconds: 10
+
+    - name: Start conductor
+      docker_stack:
+        name: conductor
+        state: present
+        compose:
+          - "{{ target_path }}/conductor-swarm.yaml"
+    
+    - name: Start haproxy
+      docker_stack:
+        name: haproxy
+        state: present
+        compose:
+          - "{{ target_path }}/haproxy-swarm.yaml"
+

ansible/site-with-mysql.yaml

@@ -0,0 +1,25 @@
+---
+- hosts: localhost
+  roles:
+    - common
+    - mysql
+    - elasticsearch
+    - conductor
+  tasks:
+    - name: Start {{ mysql_image }} and es
+      docker_stack:
+        name: conductor
+        state: present
+        compose:
+          - "{{ target_path }}/mysql-swarm.yaml"
+          - "{{ target_path }}/elasticsearch-swarm.yaml"
+    - name: Waiting for {{ mysql_image }} and es DBs
+      pause:
+        seconds: 10
+
+    - name: Start conductor
+      docker_stack:
+        name: conductor
+        state: present
+        compose:
+          - "{{ target_path }}/conductor-swarm.yaml"

ansible/site-with-postgres-cluster-replacement.yaml

@@ -14,7 +14,7 @@
         compose:
           - "{{ target_path }}/postgres-swarm.yaml"
           - "{{ target_path }}/elasticsearch-swarm.yaml"
-    - name: Waiting for postgres and ES DBs
+    - name: Waiting for postgres and es DBs
       pause:
         seconds: 10
 

ansible/site-with-postgres.yaml

@@ -13,7 +13,7 @@
         compose:
           - "{{ target_path }}/postgres-swarm.yaml"
           - "{{ target_path }}/elasticsearch-swarm.yaml"
-    - name: Waiting for postgres and ES DBs
+    - name: Waiting for postgres and es DBs
       pause:
         seconds: 10