https://github.com/zeroc0d3/docker-postgresql-replication

Replication Master-Slave PostgreSQL with Docker
https://github.com/zeroc0d3/docker-postgresql-replication

docker master-slave postgresql replication

Last synced: 8 months ago
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Replication Master-Slave PostgreSQL with Docker

• Host: GitHub
• URL: https://github.com/zeroc0d3/docker-postgresql-replication
• Owner: zeroc0d3
• License: mit
• Created: 2017-02-28T09:12:04.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2017-03-23T10:59:46.000Z (almost 9 years ago)
• Last Synced: 2025-03-31T00:24:51.009Z (9 months ago)
• Topics: docker, master-slave, postgresql, replication
• Size: 5.86 KB
• Stars: 8
• Watchers: 5
• Forks: 12
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# ZeroC0D3 Docker PostgreSQL Replication

Docker PostgreSQL Master-Slave Replication, run:

```

docker-compose build && docker-compose up

```

## Requirements:

   * [Docker for Linux](https://docs.docker.com/engine/installation/linux/ubuntu)

   * [Docker Toolbox for Windows & Mac](https://www.docker.com/products/docker-toolbox)

   * [Docker Compose](https://docs.docker.com/compose/install/) 

   * [Kitematic](https://kitematic.com/) 

## Configuration:

   * Environment

     - DB_USER=zeroc0d3_user

     - DB_PASS=zeroc0d3_password

     - DB_NAME=zeroc0d3_dbname

   * Using pgAdmin

     - Show running container docker

       ```

       docker ps

       ```

     - Show the IP Address container

       ```

       docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' [container_name_or_id]

       ```

       * Read [this](http://stackoverflow.com/questions/17157721/getting-a-docker-containers-ip-address-from-the-host)

     - Open browser: 

       ```

       http://172.21.0.x:5050

       ```

       * x = IP Address of docker pgadmin

     - Create server (Master/Slave)

     - Connection

       * Hostname: 172.21.0.x

       * Port: 5432

       * Username: zeroc0d3_user

       * Password: zeroc0d3_password

## Multi Slave Replication:

   * Change the [docker-compose-multislave.yml](https://github.com/zeroc0d3/docker-postgresql-replication/blob/master/docker-compose-multislave.yml) to [docker-compose.yml](https://github.com/zeroc0d3/docker-postgresql-replication/blob/master/docker-compose.yml)

   * Rerun the docker compose

     ```

     docker-compose build && docker-compose up --force-recreate

     ```

  

## Optional:

   * Run kitematic & select the docker master/slave container, click on "EXEC" button, or using:

     ```docker exec -it [container_id] bash```

   * Change owner database  

     - Login as postgres:

         ```

         sudo -i -u postgres

         ```

     - Enter psql:

         ```

         psql

         ```

     - Alter database owner:

	 ```

	 ALTER DATABASE zeroc0d3_dbname OWNER TO zeroc0d3_user;

	 ```

   * Change roles user 

	 - Alter for SUPERUSER:

	     ```

	     ALTER ROLE zeroc0d3_user SUPERUSER;

	     ```

	 - Alter for REPLICATION:

	     ```

	     ALTER ROLE zeroc0d3_user REPLICATION;

	     ```

## Check Replication Status:

   * After entering psql (master container):

     ```

     SELECT * FROM pg_stat_replication;

     ```

     - You can read all [here](https://www.enterprisedb.com/blog/monitoring-approach-streaming-replication-hot-standby-postgresql-93)

     

## Common PostgreSQL Command:

   * List of database: ```\l```

   * Connect to database (use database): ```\c [database_name]```

   * View table database (after use): ```\dt```

   * List of user roles: ```\du```

   * Expand display: ```\x```

   * Quit: ```\q```

## License

[MIT License](https://github.com/zeroc0d3/docker-postgresql-replication/blob/master/LICENSE) (MIT)