FastContainer: Nginx with Haconiwa

This is an example of FastContainer implementation by nginx, ngx_mruby and haconiwa.

Requirement

docker >= 18.06.0-ce
vagrant >= 2.1.1

Usage

To create an image to use in this implementation, run GNU make and vagrant to run the VM on the Virtualbox.

# Create nginx and container images to `./provision/dist`
$ make

# Create instance, and provision by `./provision/provisioner.sh`
$ vagrant up

When the VM starts up, let's start the container with the request trigger in the following way.

HTTP

HTTP container starts

$ curl http://127.0.0.1:8080/

# HTTP foo container responds
$ curl -H 'Host: foo.test' http://127.0.0.1:8080/

# HTTP bar container responds
$ curl -H 'Host: bar.test' http://127.0.0.1:8080/

SSH

SSH container starts

$ ssh root@127.0.0.1 -p 8022
# => password: screencast

SMTP

SMTP container starts

$ printf "%s\0%s\0%s" foo foo password | openssl base64 -e
Zm9vAGZvbwBwYXNzd29yZA==

$ telnet 127.0.0.1 8025
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 ubuntu-xenial ESMTP ready
HELO local
250 ubuntu-xenial
AUTH PLAIN Zm9vAGZvbwBwYXNzd29yZA==
235 2.0.0 OK
# SMTP foo container responds

$ printf "%s\0%s\0%s" bar bar password | openssl base64 -e
YmFyAGJhcgBwYXNzd29yZA==

$ telnet 127.0.0.1 8025
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 ubuntu-xenial ESMTP ready
HELO local
250 ubuntu-xenial
AUTH PLAIN YmFyAGJhcgBwYXNzd29yZA==
235 2.0.0 OK
# SMTP bar container responds

Multitenancy

HTTP determines the domain from the request host and SMTP determines the domain from SMTP AUTH. Then, upstream containers are dynamically selected from the discrimination.