我运行一个docker镜像busybox和docker-compose是dnmp，dnmp可以在github上找到。

#显示我当前运行容器，dnmp开头的容器是可以互相访问的，可以通过ip或者名字。
liusuwanqing@ken:~$ sudo docker container ps
CONTAINER ID        IMAGE                                 COMMAND                  CREATED              STATUS              PORTS                                      NAMES
7214f7c8f6a2        busybox                               "/bin/sh"                About a minute ago   Up About a minute                                              cranky_chebyshev
4a02568f420e        mysql:8.0                             "docker-entrypoint.s…"   43 minutes ago       Up 20 minutes       0.0.0.0:3306->3306/tcp, 33060/tcp          dnmp_mysql_1_f57b6a1eb2d0
91ab9566f2d8        redis:alpine                          "docker-entrypoint.s…"   2 hours ago          Up 20 minutes       0.0.0.0:6379->6379/tcp                     dnmp_redis_1_83817e8d6d2b
e248531ec66f        nginx:alpine                          "nginx -g 'daemon of…"   2 hours ago          Up 20 minutes       0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp   dnmp_nginx_1_9fc11fa7effa
c74f15f3f4a3        dnmp_php72                            "docker-php-entrypoi…"   2 hours ago          Up 20 minutes       9000/tcp                                   dnmp_php72_1_e4b3f6db9460
47e767870da3        dnmp_php56                            "docker-php-entrypoi…"   2 hours ago          Up 20 minutes       9000/tcp                                   dnmp_php56_1_18d27b9a2cc5
21f3e74270f5        erikdubbelboer/phpredisadmin:latest   "php -S 0.0.0.0:80"      2 hours ago          Up 20 minutes       0.0.0.0:8081->80/tcp                       dnmp_phpredisadmin_1_5e3bb136dc5b
10eb0fb59dc6        dnmp_php54                            "php-fpm"                2 hours ago          Up 20 minutes       9000/tcp                                   dnmp_php54_1_cbdddc1f3208
7552d764b3de        phpmyadmin/phpmyadmin:latest          "/run.sh supervisord…"   2 hours ago          Up 20 minutes       9000/tcp, 0.0.0.0:8080->80/tcp             dnmp_phpmyadmin_1_fd161800d20f

分别查看busybox和mysql容器有什么区别，使用容器id进行查看。留意他们的Networks，busybox的network是bridge，而mysql容器的network是dnmp_default。他们是两个不通网络空间！！！docker中两个不同网络默认是不允许通讯的，如果要通讯需要特殊的处理！！这样可以做到容器的互相隔离！！！他们网段也是不一样的，busybox和mysql分别是17网段和18网段。

liusuwanqing@ken:~$ sudo docker inspect 7214f7c8f6a2
        "Id": "7214f7c8f6a2facfdcf53ab69814ccd9270171f1480be47d64ec9921898d3a60",
        "Created": "2018-11-21T08:42:16.140468492Z",
        "Path": "/bin/sh",
        "Args": [],
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 124859,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2018-11-21T08:42:18.371304141Z",
            "FinishedAt": "0001-01-01T00:00:00Z"
        "Image": "sha256:59788edf1f3e78cd0ebe6ce1446e9d10788225db3dedcfd1a59f764bad2b2690",
        "ResolvConfPath": "/var/lib/docker/containers/7214f7c8f6a2facfdcf53ab69814ccd9270171f1480be47d64ec9921898d3a60/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/7214f7c8f6a2facfdcf53ab69814ccd9270171f1480be47d64ec9921898d3a60/hostname",
        "HostsPath": "/var/lib/docker/containers/7214f7c8f6a2facfdcf53ab69814ccd9270171f1480be47d64ec9921898d3a60/hosts",
        "LogPath": "/var/lib/docker/containers/7214f7c8f6a2facfdcf53ab69814ccd9270171f1480be47d64ec9921898d3a60/7214f7c8f6a2facfdcf53ab69814ccd9270171f1480be47d64ec9921898d3a60-json.log",
        "Name": "/cranky_chebyshev",
        "RestartCount": 0,
        "Driver": "aufs",
        "Platform": "linux",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "docker-default",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": null,
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {}
            "NetworkMode": "default",
            "PortBindings": {},
            "RestartPolicy": {
                "Name": "no",
                "MaximumRetryCount": 0
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": null,
            "CapAdd": null,
            "CapDrop": null,
            "Dns": [],
            "DnsOptions": [],
            "DnsSearch": [],
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "shareable",
            "Cgroup": "",
            "Links": null,
            "OomScoreAdj": 0,
            "PidMode": "",
            "Privileged": false,
            "PublishAllPorts": false,
            "ReadonlyRootfs": false,
            "SecurityOpt": null,
            "UTSMode": "",
            "UsernsMode": "",
            "ShmSize": 67108864,
            "Runtime": "runc",
            "ConsoleSize": [
            "Isolation": "",
            "CpuShares": 0,
            "Memory": 0,
            "NanoCpus": 0,
            "CgroupParent": "",
            "BlkioWeight": 0,
            "BlkioWeightDevice": [],
            "BlkioDeviceReadBps": null,
            "BlkioDeviceWriteBps": null,
            "BlkioDeviceReadIOps": null,
            "BlkioDeviceWriteIOps": null,
            "CpuPeriod": 0,
            "CpuQuota": 0,
            "CpuRealtimePeriod": 0,
            "CpuRealtimeRuntime": 0,
            "CpusetCpus": "",
            "CpusetMems": "",
            "Devices": [],
            "DeviceCgroupRules": null,
            "DiskQuota": 0,
            "KernelMemory": 0,
            "MemoryReservation": 0,
            "MemorySwap": 0,
            "MemorySwappiness": null,
            "OomKillDisable": false,
            "PidsLimit": 0,
            "Ulimits": null,
            "CpuCount": 0,
            "CpuPercent": 0,
            "IOMaximumIOps": 0,
            "IOMaximumBandwidth": 0,
            "MaskedPaths": [
                "/proc/acpi",
                "/proc/kcore",
                "/proc/keys",
                "/proc/latency_stats",
                "/proc/timer_list",
                "/proc/timer_stats",
                "/proc/sched_debug",
                "/proc/scsi",
                "/sys/firmware"
            "ReadonlyPaths": [
                "/proc/asound",
                "/proc/bus",
                "/proc/fs",
                "/proc/irq",
                "/proc/sys",
                "/proc/sysrq-trigger"
        "GraphDriver": {
            "Data": null,
            "Name": "aufs"
        "Mounts": [],
        "Config": {
            "Hostname": "7214f7c8f6a2",
            "Domainname": "",
            "User": "",
            "AttachStdin": true,
            "AttachStdout": true,
            "AttachStderr": true,
            "Tty": true,
            "OpenStdin": true,
            "StdinOnce": true,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            "Cmd": [
                "/bin/sh"
            "Image": "busybox",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {}
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "efd3e86227038ae1c82c8662c091bf6d754726d83a654c429918313177b766db",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {},
            "SandboxKey": "/var/run/docker/netns/efd3e8622703",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "4d8f6671e34f5a46120862eb76edb6186ca22ba994a1eec4ef50b755b38f82a6",
            "Gateway": "172.17.0.1",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "172.17.0.2",
            "IPPrefixLen": 16,
            "IPv6Gateway": "",
            "MacAddress": "02:42:ac:11:00:02",
            "Networks": {
                "bridge": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": null,
                    "NetworkID": "146bacc8c450741db44a70a0a6482e4a7eb4622615c5c51b4c1cda02478ca1fe",
                    "EndpointID": "4d8f6671e34f5a46120862eb76edb6186ca22ba994a1eec4ef50b755b38f82a6",
                    "Gateway": "172.17.0.1",
                    "IPAddress": "172.17.0.2",
                    "IPPrefixLen": 16,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "02:42:ac:11:00:02",
                    "DriverOpts": null
liusuwanqing@ken:~$ sudo docker inspect 4a02568f420e
        "Id": "4a02568f420e1fcc56147cd5b45440f8ef4699e689e6890ec517a576da01cae3",
        "Created": "2018-11-21T08:00:26.724258311Z",
        "Path": "docker-entrypoint.sh",
        "Args": [
            "mysqld"
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 122997,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2018-11-21T08:23:42.882186953Z",
            "FinishedAt": "2018-11-21T08:23:01.261052399Z"
        "Image": "sha256:f991c20cb5087fdd01fa7a2181f0a123a54d697681cf3723370bf50566d2e7cf",
        "ResolvConfPath": "/var/lib/docker/containers/4a02568f420e1fcc56147cd5b45440f8ef4699e689e6890ec517a576da01cae3/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/4a02568f420e1fcc56147cd5b45440f8ef4699e689e6890ec517a576da01cae3/hostname",
        "HostsPath": "/var/lib/docker/containers/4a02568f420e1fcc56147cd5b45440f8ef4699e689e6890ec517a576da01cae3/hosts",
        "LogPath": "/var/lib/docker/containers/4a02568f420e1fcc56147cd5b45440f8ef4699e689e6890ec517a576da01cae3/4a02568f420e1fcc56147cd5b45440f8ef4699e689e6890ec517a576da01cae3-json.log",
        "Name": "/dnmp_mysql_1_f57b6a1eb2d0",
        "RestartCount": 0,
        "Driver": "aufs",
        "Platform": "linux",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "docker-default",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": [
                "/home/liusuwanqing/dnmp/mysql:/var/lib/mysql:rw"
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {}
            "NetworkMode": "dnmp_default",
            "PortBindings": {
                "3306/tcp": [
                        "HostIp": "",
                        "HostPort": "3306"
            "RestartPolicy": {
                "Name": "always",
                "MaximumRetryCount": 0
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": [],
            "CapAdd": null,
            "CapDrop": null,
            "Dns": null,
            "DnsOptions": null,
            "DnsSearch": null,
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "shareable",
            "Cgroup": "",
            "Links": null,
            "OomScoreAdj": 0,
            "PidMode": "",
            "Privileged": false,
            "PublishAllPorts": false,
            "ReadonlyRootfs": false,
            "SecurityOpt": null,
            "UTSMode": "",
            "UsernsMode": "",
            "ShmSize": 67108864,
            "Runtime": "runc",
            "ConsoleSize": [
            "Isolation": "",
            "CpuShares": 0,
            "Memory": 0,
            "NanoCpus": 0,
            "CgroupParent": "",
            "BlkioWeight": 0,
            "BlkioWeightDevice": null,
            "BlkioDeviceReadBps": null,
            "BlkioDeviceWriteBps": null,
            "BlkioDeviceReadIOps": null,
            "BlkioDeviceWriteIOps": null,
            "CpuPeriod": 0,
            "CpuQuota": 0,
            "CpuRealtimePeriod": 0,
            "CpuRealtimeRuntime": 0,
            "CpusetCpus": "",
            "CpusetMems": "",
            "Devices": null,
            "DeviceCgroupRules": null,
            "DiskQuota": 0,
            "KernelMemory": 0,
            "MemoryReservation": 0,
            "MemorySwap": 0,
            "MemorySwappiness": null,
            "OomKillDisable": false,
            "PidsLimit": 0,
            "Ulimits": null,
            "CpuCount": 0,
            "CpuPercent": 0,
            "IOMaximumIOps": 0,
            "IOMaximumBandwidth": 0,
            "MaskedPaths": [
                "/proc/acpi",
                "/proc/kcore",
                "/proc/keys",
                "/proc/latency_stats",
                "/proc/timer_list",
                "/proc/timer_stats",
                "/proc/sched_debug",
                "/proc/scsi",
                "/sys/firmware"
            "ReadonlyPaths": [
                "/proc/asound",
                "/proc/bus",
                "/proc/fs",
                "/proc/irq",
                "/proc/sys",
                "/proc/sysrq-trigger"
        "GraphDriver": {
            "Data": null,
            "Name": "aufs"
        "Mounts": [
                "Type": "bind",
                "Source": "/home/liusuwanqing/dnmp/mysql",
                "Destination": "/var/lib/mysql",
                "Mode": "rw",
                "RW": true,
                "Propagation": "rprivate"
        "Config": {
            "Hostname": "4a02568f420e",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "ExposedPorts": {
                "3306/tcp": {},
                "33060/tcp": {}
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": [
                "MYSQL_ROOT_PASSWORD=123456",
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
                "GOSU_VERSION=1.7",
                "MYSQL_MAJOR=8.0",
                "MYSQL_VERSION=8.0.13-1debian9"
            "Cmd": [
                "mysqld"
            "ArgsEscaped": true,
            "Image": "mysql:8.0",
            "Volumes": {
                "/var/lib/mysql": {}
            "WorkingDir": "",
            "Entrypoint": [
                "docker-entrypoint.sh"
            "OnBuild": null,
            "Labels": {
                "com.docker.compose.config-hash": "027056cf672015aaee8e57268caf830ab86ca53b7f77703e816f6d136bcb2231",
                "com.docker.compose.container-number": "1",
                "com.docker.compose.oneoff": "False",
                "com.docker.compose.project": "dnmp",
                "com.docker.compose.service": "mysql",
                "com.docker.compose.slug": "f57b6a1eb2d07eac7bae3b25a7285d68cf21326b5df6032d99fd3a26642b240",
                "com.docker.compose.version": "1.23.1"
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "3affc5b2aafc2b065d3bfb1af105a33b92243d0e598402572f032d41d1fca0a0",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {
                "3306/tcp": [
                        "HostIp": "0.0.0.0",
                        "HostPort": "3306"
                "33060/tcp": null
            "SandboxKey": "/var/run/docker/netns/3affc5b2aafc",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "",
            "Gateway": "",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "",
            "IPPrefixLen": 0,
            "IPv6Gateway": "",
            "MacAddress": "",
            "Networks": {
                "dnmp_default": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": [
                        "4a02568f420e",
                        "mysql"
                    "NetworkID": "d81d6a629af7e1a948edc4372b64c98abf62b13326e43e1b759ff15b22d3a24b",
                    "EndpointID": "7f4a0f468ab632042f54e9718d320ba7b009d92879e7f79940460084278651c3",
                    "Gateway": "172.18.0.1",
                    "IPAddress": "172.18.0.7",
                    "IPPrefixLen": 16,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "02:42:ac:12:00:07",
                    "DriverOpts": null
 
再查看是否存在这个两个网络空间,的确是存在的，docker的网络是重点，这篇主要自己对比一下，做做笔记。
 
 
liusuwanqing@ken:~$ sudo docker network ls 
[sudo] password for liusuwanqing: 
NETWORK ID          NAME                DRIVER              SCOPE
146bacc8c450        bridge              bridge              local
d81d6a629af7        dnmp_default        bridge              local
aed22d019943        host                host                local
d59dc471b94b        none                null                local
 
                    我运行一个docker镜像busybox和docker-compose是dnmp，dnmp可以在github上找到。#显示我当前运行容器，dnmp开头的容器是可以互相访问的，可以通过ip或者名字。liusuwanqing@ken:~$ sudo docker container psCONTAINER ID        IMAGE                              ...
2、link容器别名访问（ps: 官方文档中已经不推荐使用）
3、同一自定义网络下可通过容器名访问
4.docker compose部署可通过service服务名访问（单机）
5.docker swarm 可通过service服务名访问（多主机集群 跨主机通讯）
去翻了下docker-entrypoint发现是ping db命令ping不通。
docker有着内部的dns，db这个域名会被解析成如172.18.0.4这样的内部地址，ping db不通那显然是ip不通的原因。
可问题是，我ctfd的ip是172.18.0.4/24，显然和db的ip在同一网段，但却不通，这是什么原因呢？
看了下这篇文章：
https://maximorlov.com/4-reasons-w
Docker version 1.13.1, build 7d71120/1.13.1
容器间通讯
由于是分布式环境，各个服务之间是需要进行通讯的，所以这里需要配置docker的网络，保证各个容器之间网络互通，确保服务正常地调用。
Dokcer在安装的时候，会默认创建一个内部的桥接网络d
				
一、docker中运行的不同容器之间是允许网络互通的，可以通过–icc=false 来关闭容器之间的通信
打开启动服务文件：vim /usr/lib/systemd/system/docker.service
在ExecStart中添加–icc=false
重启服务：systemctl restart docker
运行两个容器：
docker run -d -h web1 nginx_php:...




    

				
文章目录MySQL的安装与配置Docker 安装 MySQL快速启动一个 MySQL 服务实例使用 docker-compose 部署MySQL
MySQL的安装与配置
Docker 安装 MySQL
通过 Docker 搭建 MySQL 数据库环境，同时能同时启动多个 MySQL 版本。在安装前，最好上 docker 官网上看一下 MySQL 的版本，更具具体需求版本安装 MySQL，假设你已经搭建好 Docker 环境下面介绍如何创建一个 MySQL 服务器实例。
快速启动一个 MySQL 服务实例
				
Docker网络&容器通信参考之前的rhel7-up和busybox的例子
为什么资源的隔离和限制在云时代更加重要？在默认情况下，一个操作系统里所有运行的进程共享CPU和内存资源，
如果程序设计不当，最极端的情况，某进程出现死循环可能会耗尽CPU资源，或者由于内存泄漏消耗掉大部分系统资源，
这在企业级产品场景下是不可接受的，所以进程的资源隔离技术是非常必要的
Linux操作系统本身从操作系统层面就支持虚拟化技术，叫做Linux container，也就是大家到处能看到的LXC的全称
LXC的三大特色
解决方案：
netstat -nap 查找3306端口 查看程序运行的pid，发现确实被占用了，记住PID
直接找到这个端口是否被占用，命令：netstat -nap | grep 3306
kill PID 杀死该进程 ，这里是kill 1107
2.数据库的配置问题
​	在window11系统上，使用VMware Workstation软件，配置的虚拟机
​	虚拟机系统为centos7，配置有docker容器。并在docker容器中配置的mysql数据库
(base) [root@192 ~]# docker ps
CONTAINER ID        IMAGE