zakame/Dockerfile

## app.pl
#/usr/bin/env perl
use Mojolicious::Lite -signatures;

# Template with browser-side code
get '/' => 'index';

# WebSocket echo service
websocket '/echo' => sub ($c) {

  # Opened
  $c->app->log->debug('WebSocket opened');

  # Increase inactivity timeout for connection a bit
  $c->inactivity_timeout(300);

  # Incoming message
  $c->on(message => sub ($c, $msg) {
    $c->send("echo: $msg");
  });

  # Closed
  $c->on(finish => sub ($c, $code, $reason = undef) {
    $c->app->log->debug("WebSocket closed with status $code");
  });
};

app->start;
__DATA__

@@ index.html.ep
<!DOCTYPE html>
<html>
  <head><title>Echo</title></head>
  <body>
    <script>
      var ws = new WebSocket('<%= url_for('echo')->to_abs %>');

      // Incoming messages
      ws.onmessage = function (event) {
        document.body.innerHTML += event.data + '<br/>';
      };

      // Outgoing messages
      ws.onopen = function (event) {
        window.setInterval(function () { ws.send('Hello Mojo!') }, 1000);
      };
    </script>
  </body>
</html>

## docker-compose.yml
version: "3"

services:
  mojo:
    build: .
    ports:
    - "3000"
    networks:
    - envoymesh
  envoy:
    image: envoyproxy/envoy-dev
    command: /usr/local/bin/envoy -c /envoy.yaml
    ports:
    - "10000:10000"
    - "18081:18081"
    networks:
    - envoymesh
    volumes:
    - "./envoy.yaml:/envoy.yaml:ro"

networks:
  envoymesh:

## Dockerfile
FROM perl:5.32-slim-buster

RUN cpanm -nq Mojolicious

COPY app.pl /

CMD ["/usr/local/bin/perl", "/app.pl", "daemon", "-l", "http://*:8080"]

## envoy.yaml
static_resources:
  listeners:
  - name: listener_0
    address:
      socket_address: { address: 0.0.0.0, port_value: 10000 }
    filter_chains:
    - filters:
      - name: envoy.filters.network.http_connection_manager
        typed_config:
          "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
          codec_type: auto
          stat_prefix: index_http
          route_config:
            name: local_route
            virtual_hosts:
            - name: service
              domains: ["*"]
              routes:
              - match:
                  prefix: "/"
                route:
                  cluster: local_service
          upgrade_configs:
          - upgrade_type: websocket
          http_filters:
          - name: envoy.filters.http.router
            typed_config:
  clusters:
  - name: local_service
    connect_timeout: 0.25s
    type: strict_dns
    lb_policy: round_robin
    load_assignment:
      cluster_name: local_service
      endpoints:
      - lb_endpoints:
        - endpoint:
            address:
              socket_address: { address: mojo, port_value: 8080 }
admin:
  access_log_path: "/dev/null"
  address:
    socket_address: { address: 0.0.0.0, port_value: 18081 }
	#/usr/bin/env perl
	use Mojolicious::Lite -signatures;

	# Template with browser-side code
	get '/' => 'index';

	# WebSocket echo service
	websocket '/echo' => sub ($c) {

	# Opened
	$c->app->log->debug('WebSocket opened');

	# Increase inactivity timeout for connection a bit
	$c->inactivity_timeout(300);

	# Incoming message
	$c->on(message => sub ($c, $msg) {
	$c->send("echo: $msg");
	});

	# Closed
	$c->on(finish => sub ($c, $code, $reason = undef) {
	$c->app->log->debug("WebSocket closed with status $code");
	});
	};

	app->start;
	__DATA__

	@@ index.html.ep
	<!DOCTYPE html>
	<html>
	<head><title>Echo</title></head>
	<body>
	<script>
	var ws = new WebSocket('<%= url_for('echo')->to_abs %>');

	// Incoming messages
	ws.onmessage = function (event) {
	document.body.innerHTML += event.data + '<br/>';
	};

	// Outgoing messages
	ws.onopen = function (event) {
	window.setInterval(function () { ws.send('Hello Mojo!') }, 1000);
	};
	</script>
	</body>
	</html>
	version: "3"

	services:
	mojo:
	build: .
	ports:
	- "3000"
	networks:
	- envoymesh
	envoy:
	image: envoyproxy/envoy-dev
	command: /usr/local/bin/envoy -c /envoy.yaml
	ports:
	- "10000:10000"
	- "18081:18081"
	networks:
	- envoymesh
	volumes:
	- "./envoy.yaml:/envoy.yaml:ro"

	networks:
	envoymesh:
	FROM perl:5.32-slim-buster

	RUN cpanm -nq Mojolicious

	COPY app.pl /

	CMD ["/usr/local/bin/perl", "/app.pl", "daemon", "-l", "http://*:8080"]
	static_resources:
	listeners:
	- name: listener_0
	address:
	socket_address: { address: 0.0.0.0, port_value: 10000 }
	filter_chains:
	- filters:
	- name: envoy.filters.network.http_connection_manager
	typed_config:
	"@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
	codec_type: auto
	stat_prefix: index_http
	route_config:
	name: local_route
	virtual_hosts:
	- name: service
	domains: ["*"]
	routes:
	- match:
	prefix: "/"
	route:
	cluster: local_service
	upgrade_configs:
	- upgrade_type: websocket
	http_filters:
	- name: envoy.filters.http.router
	typed_config:
	clusters:
	- name: local_service
	connect_timeout: 0.25s
	type: strict_dns
	lb_policy: round_robin
	load_assignment:
	cluster_name: local_service
	endpoints:
	- lb_endpoints:
	- endpoint:
	address:
	socket_address: { address: mojo, port_value: 8080 }
	admin:
	access_log_path: "/dev/null"
	address:
	socket_address: { address: 0.0.0.0, port_value: 18081 }