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Showing posts from June, 2015

Automatically launching and configuring an EC2 instance with ansible

Ansible makes it easy to configure an EC2 instance from soup to nuts when it comes to launching the instance and configuring it.  Here's a complete playbook I use for this purpose:

$ cat ec2-launch-instance-api.yml---- name: Create a new api EC2 instance hosts: localhost gather_facts: False vars: keypair: api instance_type: t2.small security_group: api-core image: ami-5189a661 region: us-west-2 vpc_subnet: subnet-xxxxxxx name_tag: api01 tasks: - name: Launch instance ec2: key_name: "{{ keypair }}" group: "{{ security_group }}" instance_type: "{{ instance_type }}" image: "{{ image }}" wait: true region: "{{ region }}" vpc_subnet_id: "{{ vpc_subnet }}" assign_public_ip: yes instance_tags: Name: "{{ name_tag }}" register: ec2 - name: Add Route53 DNS record for this inst…

Deploying monitoring tools with ansible

At my previous job, I used Chef for configuration management. New job, new tools, so I decided to use ansible, which I had played with before. Part of that was that I got sick of tools based on Ruby. Managing all the gems dependencies and migrating from one Ruby version to another was a nightmare that I didn't want to go through again. That's one reason why at my new job we settled on Go as the main language we use for our backend API layer.

Back to ansible. Since it's written in Python, it's already got good marks in my book. Plus it doesn't need a server and it's fairly easy to wrap your head around. I've been very happy with it so far.

For external monitoring, we use Pingdom because it works and it's cheap. We also use New Relic for application performance monitoring, but it's very expensive, so I've been looking at ways to supplement it with Open Source tools.

An announcement about telegraf drew my attention the other day: here was a metrics…