caius/Caddyfile

## _output.md

      
    Raw
  

              _output.md
            
          
    Output

Running on host machine

Running with RUNTIME_SECRET unset in the shell.
$ caddy run

$ http localhost:8080
HTTP/1.1 200 OK
Content-Length: 178
Content-Type: text/html; charset=utf-8
Date: Wed, 13 Jul 2022 11:01:11 GMT
Server: Caddy

<!DOCTYPE html>
<html>
  <head>
    <title>Caddy Template</title>
  </head>
  <body>

    <h1>Hello World.</h1>

    <p>
      The current secret is 
    </p>

  </body>
</html>

Running with RUNTIME_SECRET set to a value in the shell before running Caddy
$ RUNTIME_SECRET=zomgwtfbbqsekrit caddy run

$ http localhost:8080
HTTP/1.1 200 OK
Content-Length: 194
Content-Type: text/html; charset=utf-8
Date: Wed, 13 Jul 2022 11:02:26 GMT
Server: Caddy

<!DOCTYPE html>
<html>
  <head>
    <title>Caddy Template</title>
  </head>
  <body>

    <h1>Hello World.</h1>

    <p>
      The current secret is zomgwtfbbqsekrit
    </p>

  </body>
</html>

Running inside Docker

Build the docker image first, reuse it for both examples
$ docker build -t caddy-template:dev .

Without anything set for RUNTIME_SECRET
$ docker run -it --rm -p 8080:8080 caddy-template:dev

$ http localhost:8080
HTTP/1.1 200 OK
Content-Length: 178
Content-Type: text/html; charset=utf-8
Date: Wed, 13 Jul 2022 11:07:04 GMT
Server: Caddy

<!DOCTYPE html>
<html>
  <head>
    <title>Caddy Template</title>
  </head>
  <body>

    <h1>Hello World.</h1>

    <p>
      The current secret is 
    </p>

  </body>
</html>

Setting the secret value to something in the docker container env
$ docker build -t caddy-template:dev .
$ docker run -it --rm -p 8080:8080 -e RUNTIME_SECRET=zomgwtfbbqsekrit caddy-template:dev

$ http localhost:8080
HTTP/1.1 200 OK
Content-Length: 194
Content-Type: text/html; charset=utf-8
Date: Wed, 13 Jul 2022 11:08:55 GMT
Server: Caddy

<!DOCTYPE html>
<html>
  <head>
    <title>Caddy Template</title>
  </head>
  <body>

    <h1>Hello World.</h1>

    <p>
      The current secret is zomgwtfbbqsekrit
    </p>

  </body>
</html>


## Caddyfile
{
  auto_https off
}

:8080 {
  root * .
  file_server
  templates
}

## Caddyfile.docker
{
  auto_https off
}

:8080 {
  root * /var/www/html
  file_server
  templates
}

## Dockerfile
FROM caddy:2.5.2 AS main

COPY Caddyfile.docker /etc/caddy/Caddyfile
COPY index.html /var/www/html/

## index.html
<!DOCTYPE html>
<html>
  <head>
    <title>Caddy Template</title>
  </head>
  <body>

    <h1>Hello World.</h1>

    <p>
      The current secret is {{ env "RUNTIME_SECRET" }}
    </p>

  </body>
</html>
	{
	auto_https off
	}

	:8080 {
	root * /var/www/html
	file_server
	templates
	}
	FROM caddy:2.5.2 AS main

	COPY Caddyfile.docker /etc/caddy/Caddyfile
	COPY index.html /var/www/html/
	<!DOCTYPE html>
	<html>
	<head>
	<title>Caddy Template</title>
	</head>
	<body>

	<h1>Hello World.</h1>

	<p>
	The current secret is {{ env "RUNTIME_SECRET" }}
	</p>

	</body>
	</html>