Docker 可透過 localhost:8080 和 127.0.0.1:8080 訪問,但不能透過 IP 存取

Docker 可透過 localhost:8080 和 127.0.0.1:8080 訪問,但不能透過 IP 存取

我有以下場景 - 3x Vagrant VM 從下面的 Vagrantfile 啟動並運行(在 Oracle VirtualBox 中可見)。

我登入docker1,網路類型為“NAT”,使用連接埠轉送(Guest:8080,Host:8080)。

我可以從 localhost:8080 和 127.0.0.1:8080 和 127.0.1.1:8080 訪問該頁面。但是,我無法透過 IP 進行存取(192.168.99.101:8080 是「回應時間太長」並且無法存取)。

Vagrant.configure("2") do |config|

    config.vm.define "docker1" do |docker1|
        docker1.vm.box="xxx/centos-stream-8"
        docker1.vm.hostname = "docker1.do1.lab"
        docker1.vm.network "private_network", ip: "192.168.99.101"
        docker1.vm.provision "shell", path: "docker-setup.sh"
        docker1.vm.provision "shell", path: "other-steps.sh"
        docker1.vm.provider :virtualbox do |vb|
            vb.customize ["modifyvm", :id, "--memory", "1536"]
        end
    end
    
    config.vm.define "docker2" do |docker2|
        docker2.vm.box="xxx/centos-stream-8"
        docker2.vm.hostname = "docker2.do1.lab"
        docker2.vm.network "private_network", ip: "192.168.99.102"
        docker2.vm.provision "shell", path: "docker-setup.sh"
        docker2.vm.provision "shell", path: "other-steps.sh"
        docker2.vm.provider :virtualbox do |vb|
            vb.customize ["modifyvm", :id, "--memory", "1536"]
        end
    end
    
    config.vm.define "docker3" do |docker3|
        docker3.vm.box="xxx/centos-stream-8"
        docker3.vm.hostname = "docker3.do1.lab"
        docker3.vm.network "private_network", ip: "192.168.99.103"
        docker3.vm.provision "shell", path: "docker-setup.sh"
        docker3.vm.provision "shell", path: "other-steps.sh"
        docker3.vm.provider :virtualbox do |vb|
            vb.customize ["modifyvm", :id, "--memory", "1536"]
        end
    end
end

docker-setup.sh 檔案如下:

#!/bin/bash

echo "* Add Docker repository ..."
dnf config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

echo "* Install Docker ..."
dnf install -y docker-ce docker-ce-cli containerd.io

echo "* Enable and start Docker ..."
systemctl enable docker
systemctl start docker

echo "* Add vagrant user to docker group ..."
usermod -aG docker vagrant

other-steps.sh 檔案如下:

#!/bin/bash

echo "* Add hosts ..."
echo "192.168.99.101 docker1.do1.lab docker1" >> /etc/hosts
echo "192.168.99.102 docker2.do1.lab docker2" >> /etc/hosts
echo "192.168.99.103 docker3.do1.lab docker3" >> /etc/hosts

echo "* Install Additional Packages ..."
dnf install -y jq tree git nano

echo "* Firewall - swarm - open ports ..."
firewall-cmd --add-port=2377/tcp --permanent
firewall-cmd --add-port=4789/udp --permanent
firewall-cmd --add-port=7946/tcp --permanent
firewall-cmd --add-port=7946/udp --permanent

echo "* Firewall - app - open port 8080 ..."
firewall-cmd --add-port=8080/tcp --permanent
firewall-cmd --reload

網路如下:

[vagrant@docker1 etc]$ docker network ls
NETWORK ID     NAME              DRIVER    SCOPE
f2351cd29061   bridge            bridge    local
f91a21d83931   docker_gwbridge   bridge    local
c5fc9aedf330   host              host      local
oc2i4c2czira   ingress           overlay   swarm
50fe2b72573c   none              null      local

etc/hosts 內容在這裡:

[vagrant@docker1 etc]$ cat hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
127.0.1.1 docker1.do1.lab docker1
192.168.99.101 docker1.do1.lab docker1
192.168.99.102 docker2.do1.lab docker2
192.168.99.103 docker3.do1.lab docker3

用於啟動容器的命令如下:

docker container run -d --name web -p 8080:80 -e APP_MODE='test' swarm-app

我研究了大量具有相同問題的文章,但仍然找不到解決方案。我想這可能與相關 IP 位址的 DNS 解析有關?

更新:我透過curl在CMD中打開以下地址(端口轉發主機:8080,訪客:80),如果需要提供任何信息,請告訴我: `[vagrant@docker1 ~]$curl http://localhost:8080-> 無法在瀏覽器中開啟

你好 Docker Swarm!

在測試模式下運作。

服務者:be93b0268b1d

[vagrant@docker1 ~]$ 捲曲http://172.17.0.2:80 -> 這是容器IP - 不透過瀏覽器打開

你好 Docker Swarm!

在測試模式下運作。

服務者:be93b0268b1d

[vagrant@docker1 ~]$ 捲曲http://192.168.99.101:8080 -> 這是應該透過瀏覽器開啟的 Docker 主機 IP - 也沒有成功

你好 Docker Swarm!

在測試模式下運作。

服務者:be93b0268b1d`

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