docker基本操作 部署启动nginx

这里写目录标题

  • 一级目录
    • 查看Nginx容器配置文件的步骤
        • [步骤 1: 进入Nginx容器](#步骤 1: 进入Nginx容器)
        • [步骤 2: 查看主配置文件](#步骤 2: 查看主配置文件)
        • [步骤 3: 查看站点配置文件](#步骤 3: 查看站点配置文件)
        • [步骤 4: 查看站点配置文件内容](#步骤 4: 查看站点配置文件内容)
        • [步骤 5: 退出容器](#步骤 5: 退出容器)
        • 附加信息
        • [使用 docker inspect 查看挂载点](#使用 docker inspect 查看挂载点)
        • 注意事项
    • [结合 docker inspect nginx443 输出 (棉一小程序)](#结合 docker inspect nginx443 输出 (棉一小程序))

一级目录

有如下的 nginx, 我想查看它的配置文件 怎么操作

复制代码
[root@ecs-9352 conf]# docker ps 
CONTAINER ID   IMAGE        COMMAND                  CREATED       STATUS       PORTS                                           NAMES
570200ab11e2   nginx:1.17   "nginx -g 'daemon of..."   2 years ago   Up 2 days    80/tcp, 0.0.0.0:443->443/tcp, :::443->443/tcp   nginx443

查看Nginx容器配置文件的步骤

根据您提供的Docker容器信息(容器名:nginx443),以下是查看Nginx配置文件的完整步骤:

步骤 1: 进入Nginx容器
bash 复制代码
docker exec -it nginx443 /bin/bash

这将进入Nginx容器的交互式终端。

步骤 2: 查看主配置文件
bash 复制代码
cat /etc/nginx/nginx.conf

这是Nginx的主配置文件,包含全局设置、HTTP模块等。

步骤 3: 查看站点配置文件
复制代码
ls /etc/nginx/conf.d/

通常,网站特定的配置文件会放在这个目录下,例如default.conf或您自定义的配置文件。

步骤 4: 查看站点配置文件内容
bash 复制代码
cat /etc/nginx/conf.d/default.conf

或者查看您可能自定义的配置文件:

bash 复制代码
编辑



cat /etc/nginx/conf.d/your_site.conf
步骤 5: 退出容器
bash 复制代码
exit
附加信息
使用 docker inspect 查看挂载点

在宿主机(不是容器内)执行以下命令:

复制代码
docker inspect nginx443

或者:

docker inspect nginx443 | grep -A 10 "Destination"

查看配置文件的其他方法:

如果您想直接在主机上查看配置文件(如果使用了挂载),可以使用:

bash 复制代码
docker inspect nginx443 | grep -i "Source"

这将显示挂载的配置文件路径。

验证配置文件是否正确:

bash 复制代码
docker exec nginx443 nginx -t

这个命令会测试Nginx配置文件的语法,显示是否有错误。

如果配置文件已挂载:

如果您使用了卷挂载(如-v /host/path:/container/path),您可以直接在主机上查看配置文件:

bash 复制代码
cat /host/path/nginx.conf
注意事项
  • 您的Nginx容器运行的是nginx:1.17镜像,这是较旧的版本,但配置文件结构与新版本基本相同。
  • 如果您使用了Docker Compose,配置文件可能在docker-compose.yml中定义了挂载路径。
  • 如果您需要修改配置文件并生效,修改后需要重新加载Nginx:
bash 复制代码
docker exec nginx443 nginx -s reload

按照以上步骤,您就可以查看并验证Nginx容器的配置文件了。

结合 docker inspect nginx443 输出 (棉一小程序)

推断出启动该 Nginx 容器的完整 docker run 命令:

复制代码
[root@ecs-9352 conf]# docker inspect nginx443
[
    {
        "Id": "570200ab11e232a80296e6a24c5e12a706a20e70cbed817d31c347aab4565c2f",
        "Created": "2023-09-27T04:59:08.299971724Z",
        "Path": "nginx",
        "Args": [
            "-g",
            "daemon off;"
        ],
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 16687,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2026-01-09T16:07:59.428257566Z",
            "FinishedAt": "2026-01-09T16:07:58.816639679Z"
        },
        "Image": "sha256:9beeba249f3ee158d3e495a6ac25c5667ae2de8a43ac2a8bfd2bf687a58c06c9",
        "ResolvConfPath": "/var/lib/docker/containers/570200ab11e232a80296e6a24c5e12a706a20e70cbed817d31c347aab4565c2f/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/570200ab11e232a80296e6a24c5e12a706a20e70cbed817d31c347aab4565c2f/hostname",
        "HostsPath": "/var/lib/docker/containers/570200ab11e232a80296e6a24c5e12a706a20e70cbed817d31c347aab4565c2f/hosts",
        "LogPath": "/var/lib/docker/containers/570200ab11e232a80296e6a24c5e12a706a20e70cbed817d31c347aab4565c2f/570200ab11e232a80296e6a24c5e12a706a20e70cbed817d31c347aab4565c2f-json.log",
        "Name": "/nginx443",
        "RestartCount": 0,
        "Driver": "overlay2",
        "Platform": "linux",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": [
                "/data/nginx/logs:/var/log/nginx",
                "/data/nginx/conf/cert:/etc/nginx/cert",
                "/data/nginx/conf:/etc/nginx",
                "/data/application/dist:/home/dist"
            ],
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {}
            },
            "NetworkMode": "default",
            "PortBindings": {
                "443/tcp": [
                    {
                        "HostIp": "",
                        "HostPort": "443"
                    }
                ]
            },
            "RestartPolicy": {
                "Name": "no",
                "MaximumRetryCount": 0
            },
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": null,
            "CapAdd": null,
            "CapDrop": null,
            "CgroupnsMode": "host",
            "Dns": [],
            "DnsOptions": [],
            "DnsSearch": [],
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "private",
            "Cgroup": "",
            "Links": null,
            "OomScoreAdj": 0,
            "PidMode": "",
            "Privileged": false,
            "PublishAllPorts": false,
            "ReadonlyRootfs": false,
            "SecurityOpt": null,
            "UTSMode": "",
            "UsernsMode": "",
            "ShmSize": 67108864,
            "Runtime": "runc",
            "ConsoleSize": [
                39,
                209
            ],
            "Isolation": "",
            "CpuShares": 0,
            "Memory": 0,
            "NanoCpus": 0,
            "CgroupParent": "",
            "BlkioWeight": 0,
            "BlkioWeightDevice": [],
            "BlkioDeviceReadBps": [],
            "BlkioDeviceWriteBps": [],
            "BlkioDeviceReadIOps": [],
            "BlkioDeviceWriteIOps": [],
            "CpuPeriod": 0,
            "CpuQuota": 0,
            "CpuRealtimePeriod": 0,
            "CpuRealtimeRuntime": 0,
            "CpusetCpus": "",
            "CpusetMems": "",
            "Devices": [],
            "DeviceCgroupRules": null,
            "DeviceRequests": null,
            "KernelMemory": 0,
            "KernelMemoryTCP": 0,
            "MemoryReservation": 0,
            "MemorySwap": 0,
            "MemorySwappiness": null,
            "OomKillDisable": false,
            "PidsLimit": null,
            "Ulimits": null,
            "CpuCount": 0,
            "CpuPercent": 0,
            "IOMaximumIOps": 0,
            "IOMaximumBandwidth": 0,
            "MaskedPaths": [
                "/proc/asound",
                "/proc/acpi",
                "/proc/kcore",
                "/proc/keys",
                "/proc/latency_stats",
                "/proc/timer_list",
                "/proc/timer_stats",
                "/proc/sched_debug",
                "/proc/scsi",
                "/sys/firmware"
            ],
            "ReadonlyPaths": [
                "/proc/bus",
                "/proc/fs",
                "/proc/irq",
                "/proc/sys",
                "/proc/sysrq-trigger"
            ]
        },
        "GraphDriver": {
            "Data": {
                "LowerDir": "/var/lib/docker/overlay2/bc85d5a00efd58477452d8f270b04ff444db177611d048b1a66a5afc2b53b305-init/diff:/var/lib/docker/overlay2/bf335604fbeeadac3ecc4d6790c9a89488d5ed83e742d058a802ae81cee4edb4/diff:/var/lib/docker/overlay2/99b6c36309e25644739b31365792c51f70c1ba214af80baf5d8370e4a5896bc9/diff:/var/lib/docker/overlay2/514026c0692175369b0584d1936218b2fe08aa62b17e1a2c87d4291ecd76526a/diff",
                "MergedDir": "/var/lib/docker/overlay2/bc85d5a00efd58477452d8f270b04ff444db177611d048b1a66a5afc2b53b305/merged",
                "UpperDir": "/var/lib/docker/overlay2/bc85d5a00efd58477452d8f270b04ff444db177611d048b1a66a5afc2b53b305/diff",
                "WorkDir": "/var/lib/docker/overlay2/bc85d5a00efd58477452d8f270b04ff444db177611d048b1a66a5afc2b53b305/work"
            },
            "Name": "overlay2"
        },
        "Mounts": [
            {
                "Type": "bind",
                "Source": "/data/nginx/logs",
                "Destination": "/var/log/nginx",
                "Mode": "",
                "RW": true,
                "Propagation": "rprivate"
            },
            {
                "Type": "bind",
                "Source": "/data/nginx/conf/cert",
                "Destination": "/etc/nginx/cert",
                "Mode": "",
                "RW": true,
                "Propagation": "rprivate"
            },
            {
                "Type": "bind",
                "Source": "/data/nginx/conf",
                "Destination": "/etc/nginx",
                "Mode": "",
                "RW": true,
                "Propagation": "rprivate"
            },
            {
                "Type": "bind",
                "Source": "/data/application/dist",
                "Destination": "/home/dist",
                "Mode": "",
                "RW": true,
                "Propagation": "rprivate"
            }
        ],
        "Config": {
            "Hostname": "570200ab11e2",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "ExposedPorts": {
                "443/tcp": {},
                "80/tcp": {}
            },
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
                "NGINX_VERSION=1.17.10",
                "NJS_VERSION=0.3.9",
                "PKG_RELEASE=1~buster"
            ],
            "Cmd": [
                "nginx",
                "-g",
                "daemon off;"
            ],
            "Image": "nginx:1.17",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {
                "maintainer": "NGINX Docker Maintainers <docker-maint@nginx.com>"
            },
            "StopSignal": "SIGTERM"
        },
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "8acb900f94f7d4d1fe73648bb62f1518e93cecdc1a535493fdd957122fb7dbde",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {
                "443/tcp": [
                    {
                        "HostIp": "0.0.0.0",
                        "HostPort": "443"
                    },
                    {
                        "HostIp": "::",
                        "HostPort": "443"
                    }
                ],
                "80/tcp": null
            },
            "SandboxKey": "/var/run/docker/netns/8acb900f94f7",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "625da66a7e0f92b346e807c2b52d340ba73a10664ea14727cd8485ade6291a27",
            "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": "18782b5473d4dac504b752b55be38a837806800fedb6c4c83a0e79478ef7afad",
                    "EndpointID": "625da66a7e0f92b346e807c2b52d340ba73a10664ea14727cd8485ade6291a27",
                    "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
                }
            }
        }
    }
]

根据您提供的 docker inspect nginx443 输出,我可以精确推断出当初启动该 Nginx 容器的完整 docker run 命令。

精确的启动命令

复制代码
docker run -d \
  --name nginx443 \
  -p 443:443 \
  -v /data/nginx/logs:/var/log/nginx \
  -v /data/nginx/conf/cert:/etc/nginx/cert \
  -v /data/nginx/conf:/etc/nginx \
  -v /data/application/dist:/home/dist \
  nginx:1.17
关键信息解析
  1. 镜像:

    • nginx:1.17(从 Config.Image 和 Image 字段确认)
  2. 端口映射:

    • -p 443:443(从 HostConfig.PortBindings 和 NetworkSettings.Ports 确认)
    • 映射了 IPv4 和 IPv6 的 443 端口
  3. 卷挂载(关键配置):

    • -v /data/nginx/logs:/var/log/nginx(日志目录)
    • -v /data/nginx/conf/cert:/etc/nginx/cert(SSL 证书目录)
    • -v /data/nginx/conf:/etc/nginx(Nginx 配置目录)
    • -v /data/application/dist:/home/dist(应用静态文件目录)
  4. 运行模式:

    • -d(后台运行,从 State.Running: true 确认)
    • 没有设置自动重启(RestartPolicy: {"Name": "no", "MaximumRetryCount": 0})
  5. 启动命令:

    • nginx -g 'daemon off;'(这是官方 Nginx 镜像的默认启动命令,从 Path 和 Args 字段确认)

为什么是这个命令?

  • docker inspect 的 HostConfig.Binds 和 Mounts 字段明确显示了所有挂载的卷
  • NetworkSettings.Ports 显示了端口映射关系
  • Config.Cmd 显示了容器启动时执行的命令
  • Image 字段确认了使用的是 nginx:1.17 镜像

重要提示

  1. SSL 证书路径:

    • 从挂载信息看,SSL 证书在宿主机的 /data/nginx/conf/cert 目录
    • 您的 Nginx 配置应该指向这个路径(例如:ssl_certificate /etc/nginx/cert/nginx.crt;)
  2. 配置文件路径:

    • Nginx 配置文件在宿主机的 /data/nginx/conf 目录
    • 您的 default.conf 或其他配置文件应该在这里
  3. 应用静态文件:

    • 静态文件(HTML、JS、CSS 等)在宿主机的 /data/application/dist 目录
    • Nginx 会通过 /home/dist 访问这些文件
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