Chris Weaver - Servers

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Servers

devops server cloud

File Servers

Basic file server:

python3 -m http.server

Updog (Slightly better file server):

pip3 install updog
updog [-d DIRECTORY] [-p PORT] [--password PASSWORD] [--ssl]

updog -d . -p 8080 --ssl

Dev servers

Flask:

import flask

app = flask.Flask(__name__)

@app.route('/', methods=['GET'])
def index():
    return 'hello world'

app.run(host='0.0.0.0', port=8080)

Go & Gorilla Mux

package main

import (
	"net/http"

	"github.com/gorilla/mux"
)

func main() {
	r := mux.NewRouter()

	r.HandleFunc("/", func(rw http.ResponseWriter, r *http.Request) {
		rw.Write([]byte("Hello World"))
		rw.WriteHeader(200)
	})

	http.ListenAndServe("0.0.0.0:8080", r)
}

Docker

Nginx:

docker run -it --rm -p 8080:80 nginx
docker run -it --rm -p 8080:80 -v <path_to_local_config>:/etc/nginx/nginx.conf:ro -v <path_to_local_website_files>:/usr/share/nginx/html:ro nginx

Wildcard SSL With Certbot / LetsEncrypt

Install certbot & dns plugin

pip3 install certbot
pip3 install certbot-dns-ovh

add ~/.local/bin to path if its not already

OVH App

Create new app: https://eu.api.ovh.com/createApp/

Generate consumer key:

curl -XPOST -H"X-Ovh-Application: <application key>" -H "Content-type: application/json" https://eu.api.ovh.com/1.0/auth/credential -d '{"accessRules": [{"method": "POST","path": "/domain/zone/*"},{"method": "DELETE","path": "/domain/zone/*"},{"method": "GET","path": "/domain/zone/*"},{"method": "PUT","path": "/domain/zone/*"}]}'

It will return something like:

{"validationUrl":"https://eu.api.ovh.com/auth/?credentialToken=<a token>","state":"pendingValidation","consumerKey":"4lzKpYkPux91wLi434DVdkyj7WLHDyvp"}

Go to the validation URL and login

Add everything to a file with a template similar to below

# OVH API credentials used by Certbot
dns_ovh_endpoint = ovh-eu
dns_ovh_application_key = 
dns_ovh_application_secret = 
dns_ovh_consumer_key = 

Then chmod 600 <file>.

Generate SSL Certs

note: remove ‘staging’ from the server url for a production run

sudo certbot certonly -n --dns-ovh --dns-ovh-credentials <path-to-credentials> --server https://acme-staging-v02.api.letsencrypt.org/directory -d <domain>,<*.domain> --email <emai> --agree-tos

optional:

--work-dir <path-to-work-dir>
--logs-dir <path-to-logs-dir>
--config-dir <path-to-config-dir>

chris ~ $ ▂