Posts Tagged ‘Ansible’

Offset cron jobs with Ansible

Sometimes I want to run the same cronjob on a few hosts but I might want to offset them slightly if I’m accessing any shared resources. Here’s an easy way to do that, for a small number of hosts, using Ansible… – name: Ensure cron exists cron: name: Test Job minute: “{{ play_hosts.index(inventory_hostname) }}-59/5” job: […]

Creating a Vagrant, Virtualbox & Ansible environment in the Windows Linux Subsystem

I’ve just been given a new Windows corporate laptop, with a huge amount of RAM (64GB), a large number of cores, and I wanted to start using this as my main development virtualisation platform. I do a lot of stuff with Vagrant, Ansible and VirtualBox and Windows hasn’t always been a welcome home for this […]

Ansible: Find files newer than another

I needed to figure out a way of identifying files newer than another one in Ansible. Here’s an outline of the solution I came up with. First we need to create a bunch of directories and folder, with modified mtime values, that we can work with. mkdir dir1; mkdir dir2; # Set the time on […]

Setting up a Ansible Module Test Environment

I’ve begun developing some Ansible modules and have created a Vagrant environment to help with testing. You can check it over over on my github. The environment has been created to test some MongoDB modules but can easily be repurposed to another use. It’s quite simple to get started; git clone https://github.com/rhysmeister/AnsibleTest.git cd AnsibleTest vagrant up […]

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] […]