Hey! Thanks for your interest in speaking at HashiCorp DFW. We're glad you're here!
This is a short document about what we're expecting from our speakers. If you have any feedback about this, feel free to leave a comment here or email me at dev@carlosnunez.me.
We're looking for talks that focus on using HashiCorp's tools in a given environment, namely:
| Viewing all configuration parameters for Puppet | |
| ------------------------------------------------ | |
| $> sudo puppet config print all | |
| Viewing all classes registered to a node | |
| ----------------------------------------- | |
| $> cat $(puppet config print vardir)/cache/classes.txt | |
| Doing a Puppet run of a specific module | |
| --------------------------------------- |
| # Env vars | |
| PUPPET_MASTER="YOUR_PUPPET_MASTER_HERE" | |
| GIT_REPOSITORY=https://github.com/carlosonunez/infrastructure_management | |
| PUPPET_CONFIG_BRANCH="puppet_data_config" | |
| # Add the Puppet Labs repository | |
| cd ~ && wget https://apt.puppetlabs.com/puppetlabs-release-pc1-trusty.deb | |
| sudo dpkg -i puppetlabs-release-pc1-trusty.deb | |
| # Install puppet-agent |
| References | |
| =========== | |
| 1. Why puppetmaster-passenger | |
| a. http://stackoverflow.com/questions/36625280/what-is-the-difference-between-puppetserver-1-1-3-vs-puppet-server-3-8-6-1 | |
| b. The long way: https://ubuntuforums.org/showthread.php?t=2085991 | |
| 2. Differences between puppet-master and Passenger/puppet-master: https://docs.puppet.com/puppetserver/latest/puppetserver_vs_passenger.html | |
| 3. Upstart vs SysVinit (yes, it's that old): | |
| a. http://askubuntu.com/questions/2075/whats-the-difference-between-service-and-etc-init-d | |
| b. http://askubuntu.com/questions/5039/what-is-the-difference-between-etc-init-and-etc-init-d | |
| 4. puppet.conf documentation: https://docs.puppet.com/puppet/latest/configuration.html |
| 1. Adding a `file` provisioner to a resource doesn't trigger a rebuild. The only issue I found related to this is here: https://github.com/hashicorp/terraform/issues/6065 | |
| 2. For the `connection` block, it's `private_key`, not `key_name`. Terraform didn't fight me on this... | |
| 3. `private_key` only takes the `file()` method and the path has to be absolute. Nothing else works... |
| 1. Create an etcd token; store it in Vault or some other secure location | |
| 2. Create file /etc/systemd/system/docker.service.d/custom.conf with contents: | |
| [Service] | |
| Environment="DOCKER_OPTS=-H=0.0.0.0:2376 -H unix:///var/run/docker.sock --cluster-advertise eth1:2376 --cluster-store etcd://127.0.0.1:2379" | |
| This needs to be done in cloud-init since CoreOS is super bare-bones and "doesn't" contain support for config mgmt out of the box. |
| (incomplete) | |
| This question comes up often here. As a Windows systems engineer that transitioned into a "DevOps" systems engineer (this is a very contentious title, but "systems engineer that IS DevOps" doesn't have the same ring to it) over about a year, I'd like to start a living FAQ/guide on how to get into this game. | |
| I'm also posting it on Gist [here](https://gist.github.com/carlosonunez/83312c12f884444620a495ef60882945). I presume that I'll update that one more frequently. | |
| # Materials Required | |
| * A healthy love for learning (DevOps is very young and is evolving almost daily) | |
| * Patience with being the "dumb guy in the room" |
| #!/bin/bash | |
| # NOTE: This assumes a few things: | |
| # * that you are running Ubuntu 14.10, | |
| # * that you are using EC2 for master and slaves, | |
| # * that you are using Github for source control, and | |
| # * that you want to use Google Apps for logging in. | |
| # 1. Set up S3FS | |
| # =============== |
| 1. sudo apt-get install software-properties-common | |
| 2. sudo add-apt-repository ppa:gluster/glusterfs-3.5 | |
| 3. sudo apt-get update | |
| 4. sudo apt-get install glusterfs-server | |
| 5. Create an EBS volume and mount it to each server | |
| 6. Probe for other glusterfs servers in the subnet that aren't itself using `gluster peer probe <ip>` | |
| 7. Create a new volume in the pool (from the example): ` gluster volume create testvol rep 2 transport tcp node01:/export/sdb1/brick node02:/export/sdb1/brick` |
| 1. Are you having trouble getting instances to connect to each other despite their inbound security grounds being configured properly? | |
| a. Have you tried disabling `iptables` or the Windows firewall? | |
| b. If they are in a VPC, are their egress rules configured correctly? |