Install kubernetes cluster multi master
Again, we follow the official guidance based on the MySQL Docker image.Įdit the Dockerfile, and add the following lines: RUN sed -i '/\/a server-id=1\nlog-bin' /etc/mysql//mysqld.cnfĮdit docker-entrypoint.sh file to create a user and password for replication: echo "CREATE USER IDENTIFIED BY '$MYSQL_REPLICATION_PASSWORD' " | "GRANT REPLICATION SLAVE ON *.* TO IDENTIFIED BY '$MYSQL_REPLICATION_PASSWORD' " | 'FLUSH PRIVILEGES ' | use environment variables MYSQL_REPLICATION_USER and MYSQL_REPLICATION_PASSWORD for user and password configuration. Having setup the replication cluster, we’ll modify the Docker file and build a Docker image with MySQL. ➜ vagrant git:(master) ✗ kubectl get nodesġ72.17.4.101 Ready,SchedulingDisabled 23mĮ1 is etcd node, c1 is controller node, and w1, w2, w3 are worker nodes. The VMs are all listedĪbove with their current state. This environment represents multiple VMs. In this instance, we are using Vagrant (the Vagrantfile is provided by the CoreOS setup guide), to set up the environment, making use of a single controller node and a set of three worker (slave) nodes.Īfter setting up Vagrant, check the state of the environment by running these commands… ➜ vagrant git:(master) ✗ vagrant status With a variety of ways to configure and setup your Kubernetes cluster, your existing system may vary. You will also need a virtualization tool, for example Oracle’s Virtual Box or VMware Fusion. To follow this guide, please install Vagrant on your host machine.
Install kubernetes cluster multi master mac os x#
In this example, we are using Vagrant as a configuration manager on Mac OS X to create the Kubernetes environment. For the official line on MySQL and more information plus technical details around replication, check out the MySQL documentation. We will use a traditional slave/master set up with asynchronous replication, configurable replication, depending on user configuration, and no requirement for a constant connection.
Install kubernetes cluster multi master how to#
Follow this guide to learn how to setup your MySQL replication cluster. MySQL replication is a valuable feature and asset in Kubernetes (K8S), allowing for redundancy, increased availability and potential performance improvements.