Posts Tagged ‘Ansible’

Staged service restart with Ansible

I’ve been working on a small project to create a Cassandra Cluster for Development purposes. I’m using Vagrant and Ansible to deploy a 5-node Cassandra Cluster and node #5 would always fail to join the cluster. I checked /var/log/cassandra/cassandra.log and this is what I found; INFO [InternalResponseStage:1] 2017-09-09 18:49:07,673 ColumnFamilyStore.java:406 – Initializing system_auth.roles INFO [main] […]

MySQL 5.7: root password is not in mysqld.log

I came across this issue today when working on an ansible playbook with MySQL 5.7. Old habits die hard and I was still trying to use mysql_install_db to initialise my instance. It seems a few others have been doing the same. The effect of using mysql_install_db in more recent version of MySQL is that we end […]

A Cassandra Cluster using Vagrant and Ansible

I’ve started a new project to create a Cassandra Cluster for development purposes. It’s available on my github and uses Vagrant, Ansible, and VirtualBox. Assuming everything is installed it’s quite easy to get started; ?View Code BASHgit clone https://github.com/rhysmeister/CassandraCluster.git cd CassandraCluster vagrant up Check the status of the machines; ?View Code BASHvagrant status; Current machine […]

Check MariaDB replication status inside Ansible

I needed a method to check replication status inside Ansible. The method I came up with uses the shell module… ?View Code YAML— – hosts: mariadb vars_prompt: – name: "mariadb_user" prompt: "Enter MariaDB user" – name: "mariadb_password" prompt: "Enter MariaDB user password"   tasks: – name: "Check MariaDB replication state" shell: "test 2 -eq $(mysql […]