docker部署及简单使用
配置docker源
[root@localhost yum.repos.d]# curl -o docker-ce.repo https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/centos/docker-ce.repo
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:100 1919 100 1919 0 0 11222 0 --:--:-- --:--:-- --:--:-- 11222
[root@localhost yum.repos.d]# sed -i 's@https://download.docker.com@https://mirrors.tuna.tsinghua.edu.cn/docker-ce@g' docker-ce.repo
[root@localhost yum.repos.d]#
安装docker
[root@localhost ~]# yum -y install docker-ce
#启动服务
[root@localhost ~]# systemctl enable --now docker
Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/docker.service.
[root@localhost ~]# which docker
/usr/bin/docker
配置docker加速器
docker的加速有多种方式：
- docker cn
- 中国科技大学加速器
- 阿里云加速器（需要通过阿里云开发者平台注册帐号，免费使用个人私有的加速器）
[root@localhost ~]# cat /etc/docker/daemon.json
{
"registry-mirrors": ["https://k654a2v7.mirror.aliyuncs.com"]
}
重启服务
docker常用命令
docker info 查看docker加速器
[root@localhost ~]# docker info
Client:
Context: default
Debug Mode: false
Plugins:
app: Docker App (Docker Inc., v0.9.1-beta3)
buildx: Build with BuildKit (Docker Inc., v0.6.3-docker)
scan: Docker Scan (Docker Inc., v0.9.0)
Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 20.10.11
Storage Driver: overlay2
Backing Filesystem: xfs
Supports d_type: true
Native Overlay Diff: true
userxattr: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Cgroup Version: 1
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 7b11cfaabd73bb80907dd23182b9347b4245eb5d
runc version: v1.0.2-0-g52b36a2
init version: de40ad0
Security Options:
seccomp
Profile: default
Kernel Version: 4.18.0-193.el8.x86_64
Operating System: Red Hat Enterprise Linux 8.2 (Ootpa)
OSType: linux
Architecture: x86_64
CPUs: 2
Total Memory: 1.758GiB
Name: localhost.localdomain
ID: 3SMX:QPDX:JGEM:TUPM:CTYJ:JKWD:QVHQ:6WAS:ILE5:SCDK:4SBC:KU7V
Docker Root Dir: /var/lib/docker
Debug Mode: false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Registry Mirrors:
https://k654a2v7.mirror.aliyuncs.com/
Live Restore Enabled: false
docker version 查看docker版本信息
[root@localhost ~]# docker version
Client: Docker Engine - Community
Version: 20.10.11
API version: 1.41
Go version: go1.16.9
Git commit: dea9396
Built: Thu Nov 18 00:36:58 2021
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.11
API version: 1.41 (minimum version 1.12)
Go version: go1.16.9
Git commit: 847da18
Built: Thu Nov 18 00:35:20 2021
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.4.12
GitCommit: 7b11cfaabd73bb80907dd23182b9347b4245eb5d
runc:
Version: 1.0.2
GitCommit: v1.0.2-0-g52b36a2
docker-init:
Version: 0.19.0
GitCommit: de40ad0
docker search 搜索Docker Hub上面的镜像
[root@localhost ~]# docker search nginx
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
nginx Official build of Nginx. 15899 [OK]
jwilder/nginx-proxy Automated Nginx reverse proxy for docker con… 2098 [OK]
richarvey/nginx-php-fpm Container running Nginx + PHP-FPM capable of… 819 [OK]
jc21/nginx-proxy-manager Docker container for managing Nginx proxy ho… 285
linuxserver/nginx An Nginx container, brought to you by LinuxS… 160
tiangolo/nginx-rtmp Docker image with Nginx using the nginx-rtmp… 146 [OK]
jlesage/nginx-proxy-manager Docker container for Nginx Proxy Manager 144 [OK]
alfg/nginx-rtmp NGINX, nginx-rtmp-module and FFmpeg from sou… 110 [OK]
nginxdemos/hello NGINX webserver that serves a simple page co… 79 [OK]
privatebin/nginx-fpm-alpine PrivateBin running on an Nginx, php-fpm & Al… 60 [OK]
nginx/nginx-ingress NGINX and NGINX Plus Ingress Controllers fo… 57
nginxinc/nginx-unprivileged Unprivileged NGINX Dockerfiles 54
nginxproxy/nginx-proxy Automated Nginx reverse proxy for docker con… 28
staticfloat/nginx-certbot Opinionated setup for automatic TLS certs lo… 25 [OK]
nginx/nginx-prometheus-exporter NGINX Prometheus Exporter for NGINX and NGIN… 22
schmunk42/nginx-redirect A very simple container to redirect HTTP tra… 19 [OK]
centos/nginx-112-centos7 Platform for running nginx 1.12 or building … 16
centos/nginx-18-centos7 Platform for running nginx 1.8 or building n… 13
flashspys/nginx-static Super Lightweight Nginx Image 11 [OK]
mailu/nginx Mailu nginx frontend 9 [OK]
sophos/nginx-vts-exporter Simple server that scrapes Nginx vts stats a… 7 [OK]
ansibleplaybookbundle/nginx-apb An APB to deploy NGINX 3 [OK]
wodby/nginx Generic nginx 1 [OK]
arnau/nginx-gate Docker image with Nginx with Lua enabled on … 1 [OK]
centos/nginx-110-centos7 Platform for running nginx 1.10 or building … 0
docker pull 拉取镜像
[root@localhost ~]# docker pull nginx
Using default tag: latest
latest: Pulling from library/nginx
eff15d958d66: Pull complete
1e5351450a59: Pull complete
2df63e6ce2be: Pull complete
9171c7ae368c: Pull complete
020f975acd28: Pull complete
266f639b35ad: Pull complete
Digest: sha256:097c3a0913d7e3a5b01b6c685a60c03632fc7a2b50bc8e35bcaa3691d788226e
Status: Downloaded newer image for nginx:latest
docker.io/library/nginx:latest
docker images 列出所有镜像
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest ea335eea17ab 2 weeks ago 141MB
docker create 创建容器
[root@localhost ~]# docker create nginx
81eb01f3facab5c6c7b31a6b993ccb170a46acda577925073f8c0c53f564a01c
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 53 seconds ago Created recursing_diffie
docker ps -a 列出所有已创建的容器
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 5 minutes ago Created recursing_diffie
docker start 启动容器
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 5 minutes ago Created recursing_diffie
[root@localhost ~]# docker start 81eb01f3faca
81eb01f3faca
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 7 minutes ago Up 15 seconds 80/tcp recursing_diffie
[root@localhost ~]#
docker ps 列出正在运行的容器
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 7 minutes ago Up 15 seconds 80/tcp recursing_diffie
[root@localhost ~]#
docker restart 重启容器
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 13 minutes ago Up 8 seconds 80/tcp recursing_diffie
[root@localhost ~]# docker restart 81eb01f3faca
81eb01f3faca
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 14 minutes ago Up 1 second 80/tcp recursing_diffie
[root@localhost ~]# docker ps
docker stop 停掉容器
[root@localhost ~]# docker stop 81eb01f3faca
81eb01f3faca
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 16 minutes ago Exited (0) 7 seconds ago recursing_diffie
docker kill 杀死容器进程
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 18 minutes ago Up 6 seconds 80/tcp recursing_diffie
[root@localhost ~]# docker kill 81eb01f3faca
81eb01f3faca
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 18 minutes ago Exited (137) 5 seconds ago recursing_diffie
docker run 运行
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" 21 minutes ago Up 5 seconds 80/tcp recursing_diffie
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# docker run -it nginx /bin/sh
# ls
bin dev docker-entrypoint.sh home lib64 mnt proc run srv tmp var
boot docker-entrypoint.d etc lib media opt root sbin sys usr
# cd /opt
# ls
# pwd
/opt
docker inspect 查看容器信息
[root@localhost ~]# docker inspect 81eb01f3faca
[
{
"Id": "81eb01f3facab5c6c7b31a6b993ccb170a46acda577925073f8c0c53f564a01c",
"Created": "2021-12-01T14:22:19.50577566Z",
"Path": "/docker-entrypoint.sh",
"Args": [
"nginx",
"-g",
"daemon off;"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 168283,
"ExitCode": 0,
"Error": "",
"StartedAt": "2021-12-01T14:43:44.647775017Z",
"FinishedAt": "2021-12-01T14:41:09.3110278Z"
},
"Image": "sha256:ea335eea17ab984571cd4a3bcf90a0413773b559c75ef4cda07d0ce952b00291",
"ResolvConfPath": "/var/lib/docker/containers/81eb01f3facab5c6c7b31a6b993ccb170a46acda577925073f8c0c53f564a01c/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/81eb01f3facab5c6c7b31a6b993ccb170a46acda577925073f8c0c53f564a01c/hostname",
"HostsPath": "/var/lib/docker/containers/81eb01f3facab5c6c7b31a6b993ccb170a46acda577925073f8c0c53f564a01c/hosts",
"LogPath": "/var/lib/docker/containers/81eb01f3facab5c6c7b31a6b993ccb170a46acda577925073f8c0c53f564a01c/81eb01f3facab5c6c7b31a6b993ccb170a46acda577925073f8c0c53f564a01c-json.log",
"Name": "/recursing_diffie",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"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,
"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": [
0,
0
],
"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,
"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/f515a4a5ff0760101b8927a198aad1f0ea4c5c10a96d0bd74432277cb79ec655-init/diff:/var/lib/docker/overlay2/acb978789132839e542bfb3110406baa27ba8650a98239b17bf7ef5c31f39034/diff:/var/lib/docker/overlay2/c019ef1aad85734b170781a7855554184609562ef9a6df03bc01cbba0fe23913/diff:/var/lib/docker/overlay2/fd092704c8512603fe54a2366e11d06cbf85997736f82bfcc5ea76f49f94064b/diff:/var/lib/docker/overlay2/fb02b62893c9535c20fec1df330540f0222cd3a4c8589d140a8afcc161bc1f98/diff:/var/lib/docker/overlay2/b9d7cc14584101f575f9bf92a3bf4ed01530195eda23d9c9bfb307327d33c657/diff:/var/lib/docker/overlay2/6ee2380a7737470340c597547f046cffb4985607a74dee64c16c835afbfb91fa/diff",
"MergedDir": "/var/lib/docker/overlay2/f515a4a5ff0760101b8927a198aad1f0ea4c5c10a96d0bd74432277cb79ec655/merged",
"UpperDir": "/var/lib/docker/overlay2/f515a4a5ff0760101b8927a198aad1f0ea4c5c10a96d0bd74432277cb79ec655/diff",
"WorkDir": "/var/lib/docker/overlay2/f515a4a5ff0760101b8927a198aad1f0ea4c5c10a96d0bd74432277cb79ec655/work"
},
"Name": "overlay2"
},
"Mounts": [],
"Config": {
"Hostname": "81eb01f3faca",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": true,
"AttachStderr": true,
"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=1.21.4",
"NJS_VERSION=0.7.0",
"PKG_RELEASE=1~bullseye"
],
"Cmd": [
"nginx",
"-g",
"daemon off;"
],
"Image": "nginx",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": [
"/docker-entrypoint.sh"
],
"OnBuild": null,
"Labels": {
"maintainer": "NGINX Docker Maintainers <docker-maint@nginx.com>"
},
"StopSignal": "SIGQUIT"
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "fd1fbd4f8206907dd8960c8403aa3f6ef7695e3cb1e4f452e781d497693fa085",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"80/tcp": null
},
"SandboxKey": "/var/run/docker/netns/fd1fbd4f8206",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "9acc7cf69247e55e0261ff475e71dc606deff3d1ee613600cc1835f85c99bdfa",
"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": "845a0984e1009cbb47227a97b6fed582c9e1cd20b6b654c67a6bc53df27bc0e4",
"EndpointID": "9acc7cf69247e55e0261ff475e71dc606deff3d1ee613600cc1835f85c99bdfa",
"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
}
}
}
}
]
docker logs 容器日志
[root@localhost ~]# docker logs 81eb01f3faca
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf
10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2021/12/01 14:29:14 [notice] 1#1: using the "epoll" event method
2021/12/01 14:29:14 [notice] 1#1: nginx/1.21.4
2021/12/01 14:29:14 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6)
2021/12/01 14:29:14 [notice] 1#1: OS: Linux 4.18.0-193.el8.x86_64
2021/12/01 14:29:14 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2021/12/01 14:29:14 [notice] 1#1: start worker processes
2021/12/01 14:29:14 [notice] 1#1: start worker process 31
2021/12/01 14:29:14 [notice] 1#1: start worker process 32
2021/12/01 14:36:04 [notice] 1#1: signal 3 (SIGQUIT) received, shutting down
2021/12/01 14:36:04 [notice] 31#31: gracefully shutting down
2021/12/01 14:36:04 [notice] 31#31: exiting
2021/12/01 14:36:04 [notice] 31#31: exit
2021/12/01 14:36:04 [notice] 32#32: gracefully shutting down
2021/12/01 14:36:04 [notice] 32#32: exiting
2021/12/01 14:36:04 [notice] 32#32: exit
2021/12/01 14:36:04 [notice] 1#1: signal 17 (SIGCHLD) received from 31
2021/12/01 14:36:04 [notice] 1#1: worker process 31 exited with code 0
2021/12/01 14:36:04 [notice] 1#1: signal 29 (SIGIO) received
2021/12/01 14:36:04 [notice] 1#1: signal 17 (SIGCHLD) received from 32
2021/12/01 14:36:04 [notice] 1#1: worker process 32 exited with code 0
2021/12/01 14:36:04 [notice] 1#1: exit
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: IPv6 listen already enabled
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2021/12/01 14:36:04 [notice] 1#1: using the "epoll" event method
2021/12/01 14:36:04 [notice] 1#1: nginx/1.21.4
2021/12/01 14:36:04 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6)
2021/12/01 14:36:04 [notice] 1#1: OS: Linux 4.18.0-193.el8.x86_64
2021/12/01 14:36:04 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2021/12/01 14:36:04 [notice] 1#1: start worker processes
2021/12/01 14:36:04 [notice] 1#1: start worker process 24
2021/12/01 14:36:04 [notice] 1#1: start worker process 25
2021/12/01 14:36:33 [notice] 1#1: signal 3 (SIGQUIT) received, shutting down
2021/12/01 14:36:33 [notice] 25#25: gracefully shutting down
2021/12/01 14:36:33 [notice] 24#24: gracefully shutting down
2021/12/01 14:36:33 [notice] 25#25: exiting
2021/12/01 14:36:33 [notice] 24#24: exiting
2021/12/01 14:36:33 [notice] 25#25: exit
2021/12/01 14:36:33 [notice] 24#24: exit
2021/12/01 14:36:33 [notice] 1#1: signal 17 (SIGCHLD) received from 25
2021/12/01 14:36:33 [notice] 1#1: worker process 25 exited with code 0
2021/12/01 14:36:33 [notice] 1#1: signal 29 (SIGIO) received
2021/12/01 14:36:33 [notice] 1#1: signal 17 (SIGCHLD) received from 24
2021/12/01 14:36:33 [notice] 1#1: worker process 24 exited with code 0
2021/12/01 14:36:33 [notice] 1#1: exit
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: IPv6 listen already enabled
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2021/12/01 14:36:34 [notice] 1#1: using the "epoll" event method
2021/12/01 14:36:34 [notice] 1#1: nginx/1.21.4
2021/12/01 14:36:34 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6)
2021/12/01 14:36:34 [notice] 1#1: OS: Linux 4.18.0-193.el8.x86_64
2021/12/01 14:36:34 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2021/12/01 14:36:34 [notice] 1#1: start worker processes
2021/12/01 14:36:34 [notice] 1#1: start worker process 25
2021/12/01 14:36:34 [notice] 1#1: start worker process 26
2021/12/01 14:36:59 [notice] 1#1: signal 3 (SIGQUIT) received, shutting down
2021/12/01 14:36:59 [notice] 25#25: gracefully shutting down
2021/12/01 14:36:59 [notice] 26#26: gracefully shutting down
2021/12/01 14:36:59 [notice] 25#25: exiting
2021/12/01 14:36:59 [notice] 26#26: exiting
2021/12/01 14:36:59 [notice] 25#25: exit
2021/12/01 14:36:59 [notice] 26#26: exit
2021/12/01 14:36:59 [notice] 1#1: signal 17 (SIGCHLD) received from 25
2021/12/01 14:36:59 [notice] 1#1: worker process 25 exited with code 0
2021/12/01 14:36:59 [notice] 1#1: signal 29 (SIGIO) received
2021/12/01 14:36:59 [notice] 1#1: signal 17 (SIGCHLD) received from 26
2021/12/01 14:36:59 [notice] 1#1: worker process 26 exited with code 0
2021/12/01 14:36:59 [notice] 1#1: exit
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: IPv6 listen already enabled
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
2021/12/01 14:36:59 [notice] 1#1: using the "epoll" event method
2021/12/01 14:36:59 [notice] 1#1: nginx/1.21.4
2021/12/01 14:36:59 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6)
2021/12/01 14:36:59 [notice] 1#1: OS: Linux 4.18.0-193.el8.x86_64
2021/12/01 14:36:59 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2021/12/01 14:36:59 [notice] 1#1: start worker processes
2021/12/01 14:36:59 [notice] 1#1: start worker process 25
2021/12/01 14:36:59 [notice] 1#1: start worker process 26
/docker-entrypoint.sh: Configuration complete; ready for start up
2021/12/01 14:38:39 [notice] 1#1: signal 3 (SIGQUIT) received, shutting down
2021/12/01 14:38:39 [notice] 26#26: gracefully shutting down
2021/12/01 14:38:39 [notice] 26#26: exiting
2021/12/01 14:38:39 [notice] 26#26: exit
2021/12/01 14:38:39 [notice] 25#25: gracefully shutting down
2021/12/01 14:38:39 [notice] 25#25: exiting
2021/12/01 14:38:39 [notice] 25#25: exit
2021/12/01 14:38:39 [notice] 1#1: signal 17 (SIGCHLD) received from 26
2021/12/01 14:38:39 [notice] 1#1: worker process 26 exited with code 0
2021/12/01 14:38:39 [notice] 1#1: signal 29 (SIGIO) received
2021/12/01 14:38:39 [notice] 1#1: signal 17 (SIGCHLD) received from 25
2021/12/01 14:38:39 [notice] 1#1: worker process 25 exited with code 0
2021/12/01 14:38:39 [notice] 1#1: exit
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: IPv6 listen already enabled
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2021/12/01 14:40:49 [notice] 1#1: using the "epoll" event method
2021/12/01 14:40:49 [notice] 1#1: nginx/1.21.4
2021/12/01 14:40:49 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6)
2021/12/01 14:40:49 [notice] 1#1: OS: Linux 4.18.0-193.el8.x86_64
2021/12/01 14:40:49 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2021/12/01 14:40:49 [notice] 1#1: start worker processes
2021/12/01 14:40:49 [notice] 1#1: start worker process 24
2021/12/01 14:40:49 [notice] 1#1: start worker process 25
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: IPv6 listen already enabled
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
2021/12/01 14:43:44 [notice] 1#1: using the "epoll" event method
2021/12/01 14:43:44 [notice] 1#1: nginx/1.21.4
2021/12/01 14:43:44 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6)
2021/12/01 14:43:44 [notice] 1#1: OS: Linux 4.18.0-193.el8.x86_64
2021/12/01 14:43:44 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
/docker-entrypoint.sh: Configuration complete; ready for start up
2021/12/01 14:43:44 [notice] 1#1: start worker processes
2021/12/01 14:43:44 [notice] 1#1: start worker process 25
2021/12/01 14:43:44 [notice] 1#1: start worker process 26
172.17.0.1 - - [01/Dec/2021:15:05:41 +0000] "GET / HTTP/1.1" 200 615 "-" "curl/7.61.1" "-"
docker rm 删除容器
[root@localhost ~]# docker ps -aq # 列出所有容器id
a66bd85035d7
ba03d62c1a1b
ba153f0663c3
7d79957b18f6
81eb01f3faca
[root@localhost ~]# docker rm $(docker ps -aq) #删除所有容器,正在运行的容器无法删除
a66bd85035d7
ba03d62c1a1b
ba153f0663c3
7d79957b18f6
Error response from daemon: You cannot remove a running container 81eb01f3facab5c6c7b31a6b993ccb170a46acda577925073f8c0c53f564a01c. Stop the container before attempting removal or force remove
[root@localhost ~]# docker rm a66bd85035d7 #删除单个容器
docker attach 进入容器,一次性,推出后容器停止
[root@localhost ~]# docker attach 81eb01f3faca
2021/12/01 15:24:12 [notice] 1#1: signal 28 (SIGWINCH) received
ls
^C2021/12/01 15:24:17 [notice] 1#1: signal 2 (SIGINT) received, exiting
2021/12/01 15:24:17 [notice] 25#25: exiting
2021/12/01 15:24:17 [notice] 26#26: exiting
2021/12/01 15:24:17 [notice] 26#26: exit
2021/12/01 15:24:17 [notice] 25#25: exit
2021/12/01 15:24:17 [notice] 1#1: signal 17 (SIGCHLD) received from 25
2021/12/01 15:24:17 [notice] 1#1: worker process 25 exited with code 0
2021/12/01 15:24:17 [notice] 1#1: signal 29 (SIGIO) received
2021/12/01 15:24:17 [notice] 1#1: signal 17 (SIGCHLD) received from 26
2021/12/01 15:24:17 [notice] 1#1: worker process 26 exited with code 0
2021/12/01 15:24:17 [notice] 1#1: exit
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@localhost ~]#
docker exec 进入容器
[root@localhost ~]# docker exec -it 81eb01f3faca /bin/bash
root@81eb01f3faca:/# ls
bin etc mnt sbin var
boot home opt srv
dev lib proc sys
docker-entrypoint.d lib64 root tmp
docker-entrypoint.sh media run usr
root@81eb01f3faca:/# ip a
bash: ip: command not found
root@81eb01f3faca:/# exit
exit
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
81eb01f3faca nginx "/docker-entrypoint.…" About an hour ago Up About a minute 80/tcp recursing_diffie
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