To start off, I run an NGINX web server.
This could be running anywhere in the cloud.
docker run -it -p 80:80 nginx bash
# get my public IP for this server
curl ifconfig.co
# lets get out of the container
exit
Now that we have the public IP for our server, lets start it up again
This time, without bash
We should be able to access it in the browser
docker run -it -p 80:80 nginx
In the video, we create a DNS record and point it to the IP of our server
The docs
To build certbot, i simply change directory and build my certbot container
cd .\security\letsencrypt\introduction\
docker build . -t certbot
docker run -it --rm --name certbot `
-v ${PWD}:/letsencrypt `
-v ${PWD}/certs:/etc/letsencrypt `
certbot bash
We've customised our nginx.conf
as shown in the video
Run this NGINX, we mount the shared folder that certbot will use:
cd .\security\letsencrypt\introduction\
docker run -it --rm --name nginx `
-v ${PWD}/nginx.conf:/etc/nginx/nginx.conf `
-v ${PWD}:/letsencrypt `
-v ${PWD}/certs:/etc/letsencrypt `
-p 80:80 `
-p 443:443 `
nginx
In certbot, generate our cert:
certbot certonly --webroot
# webroot is the folder we mounted: /letsencrypt
# certificate outputs under etc/letsencrypt/live/**
# since we share this volume with our webserver, we dont need to copy
# certificates across.
IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/marcel.guru/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/marcel.guru/privkey.pem
Your cert will expire on 2020-12-03. To obtain a new or tweaked
version of this certificate in the future, simply run certbot
again. To non-interactively renew *all* of your certificates, run
"certbot renew"
- Your account credentials have been saved in your Certbot
configuration directory at /etc/letsencrypt. You should make a
secure backup of this folder now. This configuration directory will
also contain certificates and private keys obtained by Certbot so
making regular backups of this folder is ideal.
- If you like Certbot, please consider supporting our work by:
Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate
Donating to EFF: https://eff.org/donate-le
To do a dry run of cert renewal:
certbot renew --dry-run
Reload our NGINX web server if the certs change:
docker exec -it nginx sh -c "nginx -s reload"
Checkout the Certbot docs for more details