DevOps

Ansible

Ansible is used for infrastructure deployment. More information about Noisebridge's use of Ansible can be found at Ansible and a quick overview of Ansible at Ansible/Quickstart.

https://github.com/noisebridge/ansible

Caddy

https://caddyserver.com/

Caddy is a webserver with https on BY DEFAULT and it is VERY PROUD of this fact.

Playbook Documentation

(e.g. how to deploy caddy with ansible, not how to use caddy)

The ansible playbook for caddy

Caddy Configuration

Tutorial/Primer

Caddy configuration file documentation

cli interface, flags and stuff

Noisebridge configuration

The majority of entries in caddy.yml handle redirects from other noisebridte-ish domains like noisebridge.com to noisebridge.net.

apps like mailman, pipermail with http[s] endpoints are also configured.

Directives

A list of directives seen in noisebridge caddy ansible playbook and their definitions.

prometheus

a metric reporting system.

gzip

serve sites from zipped archives

log

logging configuration

tls

override https default intentionally

redir

sends the client an HTTP redirect status code if the URL matches the specified pattern. It is also possible to make a redirect conditional.

root

specifies the root of the site. This is very useful, in fact required, if the root (/) directory of the website is not the same as where Caddy is being executed from.

index

sets the list of file names that are used as "index" files. When a directory path is requested instead of a specific file, the directory is checked for existing index files. The first matching file name is served.

header

manipulate response headers.

fastcgi

proxies requests to a FastCGI server.

rewrite

request one resource but actually be served another without an HTTP redirect. Rewrites are invisible to the client.

Plugins

cgi

generate dynamic content on your website by means of command line scripts

molecule

"Molecule aids in the development and testing of Ansible roles."

https://github.com/ansible/molecule

why are there two instances, default and alternate?

coredns

https://coredns.io/

Ansible houses files which contain Noisebridge's dns configuration.

Prometheus

System monitoring and time series database.

https://prometheus.io/

Playbook configuration

playbook configuration for prometheus

Noisebridge

Prometheus is configured to log metrics for various groups of services. As different groups are involved, there is prometheus config in different group_vars files.

node, caddy, and coredns, smartpi

Q: Why is the web_listen_address "127.0.0.1:9090" instead of "localhost:9090" as lower in the file?

mysql (percona)

Percona is a distribution of MySQL which includes features from MySQL Enterprise edition like availability, availability, security, etc.

Ansible

As Percona is a mysql distribution, it makes use of the ansible role.

Percona

the database name is noisebridge_mediawiki

Noisebridge

Percona is used to serve noisebridge's mediawiki instance.

Grafana

Grafana is a " tool for beautiful monitoring and metric analytics & dashboards for Graphite, InfluxDB & Prometheus & More" github

playbook

The config in grafana.yml is specific to directories, hosts, databases, credentials and various authentications.

node exporter

A basic metrics exporter for prometheus

playbook

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