Como adicionar domínios no seu container

Pode-se utilizar servidores DNS ou o arquivo host para definir o IP e nome para acesso.

No Linux o arquivo pode ser localizado conforme abaixo:

$ cat /etc/hosts
# This file was automatically generated by WSL. To stop automatic generation of this file, add the following entry to /etc/wsl.conf:
# [network]
# generateHosts = false
127.0.0.1       localhost
127.0.1.1       Latitude5440.   Latitude5440

10.0.0.38       host.docker.internal
10.0.0.38       gateway.docker.internal
127.0.0.1       kubernetes.docker.internal

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

No Windows pode ser localizado em C:\Windows\System32\drivers\etc:

Isso também pode ser feito no container. Por exemplo, o container que está em execução:

$ docker container ls
CONTAINER ID   IMAGE     COMMAND                  CREATED          STATUS          PORTS     NAMES
10ec7dc1b4bc   nginx     "/docker-entrypoint.…"   26 minutes ago   Up 26 minutes             cool_benz

Recuperar o IP da máquina local:

$ ifconfig eth0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.43.217  netmask 255.255.240.0  broadcast 192.168.47.255
        inet6 fe80::215:5dff:fed1:2fc9  prefixlen 64  scopeid 0x20<link>
        ether 00:15:5d:d1:2f:c9  txqueuelen 1000  (Ethernet)
        RX packets 74947  bytes 84950185 (84.9 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 20155  bytes 1602099 (1.6 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

http://192.168.43.217/

Criação de um domínio qualquer, adição ao container docker para acesso:

$ docker container run -it --add-host barbieri.com.br:192.168.43.217 ubuntu /bin/bash
root@a6e53af355d0:/# cat /etc/hosts
127.0.0.1       localhost
::1     localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
192.168.43.217  barbieri.com.br
172.17.0.2      a6e53af355d0

Acesso ao container NGINX em execução:

root@a6e53af355d0:/# apt update && apt install curl --yes
root@a6e53af355d0:/# curl
curl: try 'curl --help' or 'curl --manual' for more information
root@a6e53af355d0:/# curl barbieri.com.br
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
html { color-scheme: light dark; }
body { width: 35em; margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif; }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>

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Last updated 1 year ago