阻止外部访问Docker容器

我想阻止从外部直接访问docker容器。我使用haproxy,并且只希望访问端口80、443。

我在iptables中添加了以下规则。但是我仍然可以通过不同的端口访问Docker容器。

*filter

:INPUT DROP [0:0]

:FORWARD ACCEPT [0:0]

:OUTPUT ACCEPT [0:0]

-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

-A INPUT -p icmp -j ACCEPT

-A INPUT -i lo -j ACCEPT

-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT

-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT

-A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT

COMMIT

这可能是由于DOCKER链

# iptables -L

Chain INPUT (policy DROP)

target prot opt source destination

ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED

ACCEPT icmp -- anywhere anywhere

ACCEPT all -- anywhere anywhere

ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh

ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:http

ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:https

Chain FORWARD (policy ACCEPT)

target prot opt source destination

DOCKER-ISOLATION all -- anywhere anywhere

DOCKER all -- anywhere anywhere

ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED

ACCEPT all -- anywhere anywhere

ACCEPT all -- anywhere anywhere

DOCKER all -- anywhere anywhere

ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED

ACCEPT all -- anywhere anywhere

ACCEPT all -- anywhere anywhere

DOCKER all -- anywhere anywhere

ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED

ACCEPT all -- anywhere anywhere

ACCEPT all -- anywhere anywhere

DOCKER all -- anywhere anywhere

ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED

ACCEPT all -- anywhere anywhere

ACCEPT all -- anywhere anywhere

Chain OUTPUT (policy ACCEPT)

target prot opt source destination

Chain DOCKER (4 references)

target prot opt source destination

ACCEPT tcp -- anywhere 172.18.0.2 tcp dpt:http

Chain DOCKER-ISOLATION (1 references)

target prot opt source destination

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

DROP all -- anywhere anywhere

RETURN all -- anywhere anywhere

我需要创建什么规则来阻止直接访问?

回答:

您可以使用docker network create

NETWORK命令创建一个网络来连接应用程序和代理,而不必使用IP表来执行此操作。另外,请勿在任何端口上公开应用程序。您应该公开的唯一容器是代理。然后,您可以从代理内使用容器名称作为主机名路由通信。其他容器可以访问同一网络上的每个容器。

例如,如果

  • 我有一个名称为的容器A,my-service并且在端口3000上运行了服务,并且
  • 容器B是运行在端口80上的代理, 。我的代理可以将请求传递到http:// my-service:3000,它将流量路由到容器。
  • 如果我尝试转到http:// mydomain:3000,则该端口将无法工作,因为端口尚未公开,访问应用程序的唯一方法是通过端口80上的代理

我建议您阅读https://docs.docker.com/engine/userguide/networking/work-with-

networks/,因为这说明了如何开始使用网络。

希望这是有用的。

迪伦

回答:

由于不了解有关代理,网络限制等方面的设置细节,因此我对流程进行了概括。由于上面的链接比我更擅长于此,因此我也没有涉及特定的命令。

以上是 阻止外部访问Docker容器 的全部内容, 来源链接: utcz.com/qa/434024.html

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