Docker部署Nginx应用（2）

1、拉取Nginx镜像

[root@localhost ~]# docker pull nginx

Using default tag: latest

latest: Pulling from library/nginx

f7e2b70d04ae: Pull complete

08dd01e3f3ac: Pull complete

d9ef3a1eb792: Pull complete

Digest: sha256:98efe605f61725fd817ea69521b0eeb32bef007af0e3d0aeb6258c6e6fe7fc1a

Status: Downloaded newer image for nginx:latest

2、查看拉取到的镜像

[root@localhost ~]# docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

nginx               latest              881bd08c0b08         days ago          109MB

3、在Docker中启用Nginx

[root@localhost ~]# docker run -p : --name myNginx -d nginx

ad7cc45c81ffadbd44254c1c043e048c677a4ebcd4ca618efcd098729cec2fa5

4、查看启动的nginx进程

[root@localhost ~]# ps -ef|grep nginx

root           : ?        :: nginx: master process nginx -g daemon off;

            : ?        :: nginx: worker process

root           : pts/    :: grep --color=auto nginx

5、访问nginx

[root@localhost ~]# curl http://localhost:80/

<!DOCTYPE html>

<html>

<head>

<title>Welcome to nginx!</title>

<style>

    body {

        width: 35em;

        margin:  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>

6、监测Nginx引用状态

[root@localhost ~]# docker inspect ad7cc45c81ffadbd44254c1c043e048c677a4ebcd4ca618efcd098729cec2fa5

[

    {

        "Id": "ad7cc45c81ffadbd44254c1c043e048c677a4ebcd4ca618efcd098729cec2fa5",

        "Created": "2019-03-12T09:58:06.595522099Z",

        "Path": "nginx",

        "Args": [

            "-g",

            "daemon off;"

        ],

        "State": {

            "Status": "running",

            "Running": true,

            "Paused": false,

            "Restarting": false,

            "OOMKilled": false,

            "Dead": false,

            "Pid": ,

            "ExitCode": ,

            "Error": "",

            "StartedAt": "2019-03-12T09:58:07.12571162Z",

            "FinishedAt": "0001-01-01T00:00:00Z"

        },

        "Image": "sha256:881bd08c0b08234bd19136957f15e4301097f4646c1e700f7fea26e41fc40069",

        "ResolvConfPath": "/var/lib/docker/containers/ad7cc45c81ffadbd44254c1c043e048c677a4ebcd4ca618efcd098729cec2fa5/resolv.conf",

        "HostnamePath": "/var/lib/docker/containers/ad7cc45c81ffadbd44254c1c043e048c677a4ebcd4ca618efcd098729cec2fa5/hostname",

        "HostsPath": "/var/lib/docker/containers/ad7cc45c81ffadbd44254c1c043e048c677a4ebcd4ca618efcd098729cec2fa5/hosts",

        "LogPath": "/var/lib/docker/containers/ad7cc45c81ffadbd44254c1c043e048c677a4ebcd4ca618efcd098729cec2fa5/ad7cc45c81ffadbd44254c1c043e048c677a4ebcd4ca618efcd098729cec2fa5-json.log",

        "Name": "/myNginx",

        "RestartCount": ,

        "Driver": "overlay2",

        "Platform": "linux",

        "MountLabel": "",

        "ProcessLabel": "",

        "AppArmorProfile": "",

        "ExecIDs": null,

        "HostConfig": {

            "Binds": null,

            "ContainerIDFile": "",

            "LogConfig": {

                "Type": "json-file",

                "Config": {}

            },

            "NetworkMode": "default",

            "PortBindings": {

                "80/tcp": [

                    {

                        "HostIp": "",

                        "HostPort": ""

                    }

                ]

            },

            "RestartPolicy": {

                "Name": "no",

                "MaximumRetryCount":

            },

            "AutoRemove": false,

            "VolumeDriver": "",

            "VolumesFrom": null,

            "CapAdd": null,

            "CapDrop": null,

            "Dns": [],

            "DnsOptions": [],

            "DnsSearch": [],

            "ExtraHosts": null,

            "GroupAdd": null,

            "IpcMode": "shareable",

            "Cgroup": "",

            "Links": null,

            "OomScoreAdj": ,

            "PidMode": "",

            "Privileged": false,

            "PublishAllPorts": false,

            "ReadonlyRootfs": false,

            "SecurityOpt": null,

            "UTSMode": "",

            "UsernsMode": "",

            "ShmSize": ,

            "Runtime": "runc",

            "ConsoleSize": [

                ,

            ],

            "Isolation": "",

            "CpuShares": ,

            "Memory": ,

            "NanoCpus": ,

            "CgroupParent": "",

            "BlkioWeight": ,

            "BlkioWeightDevice": [],

            "BlkioDeviceReadBps": null,

            "BlkioDeviceWriteBps": null,

            "BlkioDeviceReadIOps": null,

            "BlkioDeviceWriteIOps": null,

            "CpuPeriod": ,

            "CpuQuota": ,

            "CpuRealtimePeriod": ,

            "CpuRealtimeRuntime": ,

            "CpusetCpus": "",

            "CpusetMems": "",

            "Devices": [],

            "DeviceCgroupRules": null,

            "DiskQuota": ,

            "KernelMemory": ,

            "MemoryReservation": ,

            "MemorySwap": ,

            "MemorySwappiness": null,

            "OomKillDisable": false,

            "PidsLimit": ,

            "Ulimits": null,

            "CpuCount": ,

            "CpuPercent": ,

            "IOMaximumIOps": ,

            "IOMaximumBandwidth": ,

            "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/bc9ef8c119903b79ec581081d835c447ce00b72eb70b07b45d14b3dde7a37c51-init/diff:/var/lib/docker/overlay2/2f3362aabe1d926214bed5c53a425fde596d23861cc6a59168c594974623876a/diff:/var/lib/docker/overlay2/56da5031c7fb61e617765323e953cd71e07679f202f56df818342500f409b50b/diff:/var/lib/docker/overlay2/1321013bc28d4931f52ab6cc47de24b57c6221686aa25c1acea18c7f87131070/diff",

                "MergedDir": "/var/lib/docker/overlay2/bc9ef8c119903b79ec581081d835c447ce00b72eb70b07b45d14b3dde7a37c51/merged",

                "UpperDir": "/var/lib/docker/overlay2/bc9ef8c119903b79ec581081d835c447ce00b72eb70b07b45d14b3dde7a37c51/diff",

                "WorkDir": "/var/lib/docker/overlay2/bc9ef8c119903b79ec581081d835c447ce00b72eb70b07b45d14b3dde7a37c51/work"

            },

            "Name": "overlay2"

        },

        "Mounts": [],

        "Config": {

            "Hostname": "ad7cc45c81ff",

            "Domainname": "",

            "User": "",

            "AttachStdin": false,

            "AttachStdout": false,

            "AttachStderr": false,

            "ExposedPorts": {

                "80/tcp": {}

            },

            "Tty": false,

            "OpenStdin": false,

            "StdinOnce": false,

            "Env": [

                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",

                "NGINX_VERSION=1.15.9-1~stretch",

                "NJS_VERSION=1.15.9.0.2.8-1~stretch"

            ],

            "Cmd": [

                "nginx",

                "-g",

                "daemon off;"

            ],

            "ArgsEscaped": true,

            "Image": "nginx",

            "Volumes": null,

            "WorkingDir": "",

            "Entrypoint": null,

            "OnBuild": null,

            "Labels": {

                "maintainer": "NGINX Docker Maintainers <docker-maint@nginx.com>"

            },

            "StopSignal": "SIGTERM"

        },

        "NetworkSettings": {

            "Bridge": "",

            "SandboxID": "c107fe699256ce2babfe253697e8920386d06d86dae4d91be13c0b6cca00aa08",

            "HairpinMode": false,

            "LinkLocalIPv6Address": "",

            "LinkLocalIPv6PrefixLen": ,

            "Ports": {

                "80/tcp": [

                    {

                        "HostIp": "0.0.0.0",

                        "HostPort": ""

                    }

                ]

            },

            "SandboxKey": "/var/run/docker/netns/c107fe699256",

            "SecondaryIPAddresses": null,

            "SecondaryIPv6Addresses": null,

            "EndpointID": "88fa96a128cc924a9117cae0f720609ed70cad716892da3baf598e7f58a03ecc",

            "Gateway": "172.17.0.1",

            "GlobalIPv6Address": "",

            "GlobalIPv6PrefixLen": ,

            "IPAddress": "172.17.0.2",

            "IPPrefixLen": ,

            "IPv6Gateway": "",

            "MacAddress": "02:42:ac:11:00:02",

            "Networks": {

                "bridge": {

                    "IPAMConfig": null,

                    "Links": null,

                    "Aliases": null,

                    "NetworkID": "43fd51e168684e9ecd3684cf50beff2305983c747083d35e2b8a04d3470d775b",

                    "EndpointID": "88fa96a128cc924a9117cae0f720609ed70cad716892da3baf598e7f58a03ecc",

                    "Gateway": "172.17.0.1",

                    "IPAddress": "172.17.0.2",

                    "IPPrefixLen": ,

                    "IPv6Gateway": "",

                    "GlobalIPv6Address": "",

                    "GlobalIPv6PrefixLen": ,

                    "MacAddress": "02:42:ac:11:00:02",

                    "DriverOpts": null

                }

            }

        }

    }

]

7、停止Nginx应用

[root@localhost ~]# docker ps

CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                NAMES

ad7cc45c81ff        nginx               "nginx -g 'daemon of…"    seconds ago      Up  seconds       0.0.0.0:->/tcp   myNginx

[root@localhost ~]# docker stop ad7cc45c81ff

ad7cc45c81ff

8、查看Nginx进程，访问80端口

[root@localhost ~]# ps -ef|grep nginx

root           : pts/    :: grep --color=auto nginx

[root@localhost ~]# curl http://localhost:80/

curl: () Failed connect to localhost:; Connection refused

9、删除Nginx应用Container（一般需要先停止后才能删除，强制删除使用 docker rm -f xxx）

[root@localhost ~]# docker stop ad7cc45c81ff

ad7cc45c81ff

[root@localhost ~]# docker rm ad7cc45c81ff

ad7cc45c81ff

10、Docker的Nginx应用映射到主机8899端口

[root@localhost ~]# curl http://localhost:8899/

curl: () Failed connect to localhost:; Connection refused

[root@localhost ~]# docker run -p : --name myNginx -d nginx

598c5f3d52e0511480eebb031c2cdee05b155054edd014ca22ca1bef49d62867

[root@localhost ~]# curl http://localhost:8899/

<!DOCTYPE html>

<html>

<head>

<title>Welcome to nginx!</title>

<style>

    body {

        width: 35em;

        margin:  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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