I. Container Life Cycle Management
1. create
Command Interpretation: Create a container, but do not start. The container name is mynginx
leoheng-MacBook-Pro:~ leo$ docker create --name mynginx nginx:latest Unable to find image 'nginx:latest' locally latest: Pulling from library/nginx a5a6f2f73cd8: Pull complete 1ba02017c4b2: Pull complete 33b176c904de: Pull complete Digest: sha256:5d32f60db294b5deb55d078cd4feb410ad88e6fe77500c87d3970eca97f54dba Status: Downloaded newer image for nginx:latest 3a9e561b7629c6880c776a9331dcc9d052685f08c98f58c940e1a164c1f8d77c leoheng-MacBook-Pro:~ leo$
2. run
Command Interpretation: Create a container and run it
Optional parameters:
- a stdin: specify the standard input and output content type, and select STDIN/STDOUT/STDERR three items;
- d: Run the container in the background and return the container ID;
- i: Running containers in interactive mode, usually in conjunction with - t;
- p: Port mapping in the form of host (host) port: container port
- t: To reassign a pseudo-input terminal for the container, usually in conjunction with-i;
name="mynginx": specify a name for the container;
- dns 8.8.8.8: The DNS server used by the specified container is the same as the host by default;
- dns-search example.com: Specify the container DNS search domain name, which is the same as the host by default;
- h "leo": specify the host name of the container;
- e username="uleo": Set environment variables;
- env-file=[]: Read environment variables from the specified file;
- cpuset="0-2" or - cpuset="0,1,2": bind the container to run on the specified CPU;
- m: Set the maximum memory used by the container;
- net="bridge": specify the network connection type of container, support bridge/host/none/container: four types;
--link=[]: Add a link to another container;
Expo=[]: Open a port or a group of ports;
leoheng-MacBook-Pro:~ leo$ docker run -it -d -p 222:22 -p 8080:80 --restart=always --name nginx nginx:latest feea481119cb053e84bf3bda6f1b29beaddb3f91899f4d28775c4015f0dafa2f leoheng-MacBook-Pro:~ leo$ docker ps –a #View container processes CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES feea481119cb nginx:latest "nginx -g 'daemon of…" About a minute ago Up About a minute 0.0.0.0:222->22/tcp, 0.0.0.0:8080->80/tcp nginx leoheng-MacBook-Pro:~ leo$
3. start/stop/restart
Command Interpretation: Start, Close, Restart Containers
leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES feea481119cb nginx:latest "nginx -g 'daemon of…" 3 minutes ago Up 3 minutes 0.0.0.0:222->22/tcp, 0.0.0.0:8080->80/tcp nginx leoheng-MacBook-Pro:~ leo$ docker stop feea481119cb feea481119cb leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES leoheng-MacBook-Pro:~ leo$ docker restrat feea481119cb docker: 'restrat' is not a docker command. See 'docker --help' leoheng-MacBook-Pro:~ leo$ docker restart feea481119cb feea481119cb leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES feea481119cb nginx:latest "nginx -g 'daemon of…" 3 minutes ago Up 2 seconds 0.0.0.0:222->22/tcp, 0.0.0.0:8080->80/tcp nginx leoheng-MacBook-Pro:~ leo$
4. pause/unpause
Command Interpretation: The container is suspended or restored to suspend the container. The container cannot be used normally in the suspended state.
leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES feea481119cb nginx:latest "nginx -g 'daemon of…" 4 minutes ago Up About a minute 0.0.0.0:222->22/tcp, 0.0.0.0:8080->80/tcp nginx leoheng-MacBook-Pro:~ leo$ docker pause feea481119cb feea481119cb leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES feea481119cb nginx:latest "nginx -g 'daemon of…" 6 minutes ago Up 2 minutes (Paused) 0.0.0.0:222->22/tcp, 0.0.0.0:8080->80/tcp nginx leoheng-MacBook-Pro:~ leo$ docker unpause feea481119cb feea481119cb leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES feea481119cb nginx:latest "nginx -g 'daemon of…" 6 minutes ago Up 2 minutes 0.0.0.0:222->22/tcp, 0.0.0.0:8080->80/tcp nginx leoheng-MacBook-Pro:~ leo$
5. exec
Command Interpretation: Execute commands in running containers or enter containers
leoheng-MacBook-Pro:~ leo$ docker exec -it nginx /bin/bash root@feea481119cb:/# hostname feea481119cb root@feea481119cb:/#
6. kill
Command Interpretation: Termination of a running container
Parameters:
- s: Send termination signal to container
leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES feea481119cb nginx:latest "nginx -g 'daemon of…" 14 minutes ago Up 10 minutes 0.0.0.0:222->22/tcp, 0.0.0.0:8080->80/tcp nginx leoheng-MacBook-Pro:~ leo$ docker kill nginx nginx leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES leoheng-MacBook-Pro:~ leo$
7. rm
Command Interpretation: Delete one or more containers
Parameters:
- f: Force removal of a running container by termination signal
- l: Remove network connections between containers, not containers themselves
- v: Delete volumes associated with containers
leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES feea481119cb nginx:latest "nginx -g 'daemon of…" 16 minutes ago Up 41 seconds 0.0.0.0:222->22/tcp, 0.0.0.0:8080->80/tcp nginx leoheng-MacBook-Pro:~ leo$ docker rm nginx Error response from daemon: You cannot remove a running container feea481119cb053e84bf3bda6f1b29beaddb3f91899f4d28775c4015f0dafa2f. Stop the container before attempting removal or force remove leoheng-MacBook-Pro:~ leo$ docker stop nginx nginx leoheng-MacBook-Pro:~ leo$ docker rm nginx nginx leoheng-MacBook-Pro:~ leo$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES leoheng-MacBook-Pro:~ leo$
II. Container Operation
1. ps
Command Interpretation: List Containers
Parameters:
- a: Display all containers, including those that are not running.
- f: Filter the displayed content according to conditions
format: Template for specifying return values
- l: Display recently created containers
- n: List the n containers recently created
- no-trunc: Uncut output
- q: Quiet mode, showing only container number
- s: Displays the total file size.
leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES leoheng-MacBook-Pro:~ leo$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES feea481119cb nginx:latest "nginx -g 'daemon of…" 16 minutes ago Exited (137) About a minute ago nginx leoheng-MacBook-Pro:~ leo$
2. inspect
Command Interpretation: Getting Container/Mirror Metadata
Parameters:
- f: Template file specifying return value
- s: Display sad file size
--type: Returns json for the specified type
View the meta information of nginx:latest
leoheng-MacBook-Pro:~ leo$ docker inspect nginx:latest
[
{
"Id": "sha256:568c4670fa800978e08e4a51132b995a54f8d5ae83ca133ef5546d092b864acf",
"RepoTags": [
"nginx:latest"
],
"RepoDigests": [
"nginx@sha256:5d32f60db294b5deb55d078cd4feb410ad88e6fe77500c87d3970eca97f54dba"
],
"Parent": "",
"Comment": "",
"Created": "2018-11-27T22:21:45.207738888Z",
"Container": "1455cab9c97f6945336dd97d5dfca0429eacbb739fcd362cc528ed8a175fcc7b",
"ContainerConfig": {
"Hostname": "1455cab9c97f",
"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=1.15.7-1~stretch",
"NJS_VERSION=1.15.7.0.2.6-1~stretch"
],
"Cmd": [
"/bin/sh",
"-c",
"#(nop) ",
"CMD [\"nginx\" \"-g\" \"daemon off;\"]"
],
"ArgsEscaped": true,
"Image": "sha256:cf9409661039371fa3448619fb988625e4542108921c4c8f923c5bccc51601eb",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": [],
"Labels": {
"maintainer": "NGINX Docker Maintainers <docker-maint@nginx.com>"
},
"StopSignal": "SIGTERM"
},
"DockerVersion": "17.06.2-ce",
"Author": "",
"Config": {
"Hostname": "",
"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=1.15.7-1~stretch",
"NJS_VERSION=1.15.7.0.2.6-1~stretch"
],
"Cmd": [
"nginx",
"-g",
"daemon off;"
],
"ArgsEscaped": true,
"Image": "sha256:cf9409661039371fa3448619fb988625e4542108921c4c8f923c5bccc51601eb",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": [],
"Labels": {
"maintainer": "NGINX Docker Maintainers <docker-maint@nginx.com>"
},
"StopSignal": "SIGTERM"
},
"Architecture": "amd64",
"Os": "linux",
"Size": 109116878,
"VirtualSize": 109116878,
"GraphDriver": {
"Data": {
"LowerDir": "/var/lib/docker/overlay2/b2a9c894aa016618fdae88f2cd152cf11f1f05461d927d4682efe60c4366f038/diff:/var/lib/docker/overlay2/a9bc2292493221b766a47272eb1d9d7c2b0049bda74a745dd82bc82443f5ec1f/diff",
"MergedDir": "/var/lib/docker/overlay2/b9af4051377bdbc6e1435834a73ed8c23d5bb89bfef33eb199347ff315038f32/merged",
"UpperDir": "/var/lib/docker/overlay2/b9af4051377bdbc6e1435834a73ed8c23d5bb89bfef33eb199347ff315038f32/diff",
"WorkDir": "/var/lib/docker/overlay2/b9af4051377bdbc6e1435834a73ed8c23d5bb89bfef33eb199347ff315038f32/work"
},
"Name": "overlay2"
},
"RootFS": {
"Type": "layers",
"Layers": [
"sha256:ef68f6734aa485edf13a8509fe60e4272428deaf63f446a441b79d47fc5d17d3",
"sha256:ad5345cbb119f7c720123e3adf28b164143e4157ca6e46a629ca694e75f7825f",
"sha256:ece4f9fdef598687f23d39643bacbf2c609201b087b93bbae81b931da72d2a64"
]
},
"Metadata": {
"LastT
agTime": "0001-01-01T00:00:00Z"
}
}
]
leoheng-MacBook-Pro:~ leo$ip method for obtaining containers
leoheng-MacBook-Pro:~ leo$ docker inspect -f {{.NetworkSettings.Networks.bridge.IPAddress}} nginx
172.17.0.2perhaps
leoheng-MacBook-Pro:~ leo$ docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' nginx
172.17.0.2
leoheng-MacBook-Pro:~ leo$3. top
Command Interpretation: View the process information running in the container and support the parameters of ps
leoheng-MacBook-Pro:~ leo$ docker top nginx PID USER TIME COMMAND 3208 root 0:00 nginx: master process nginx -g daemon off; 3251 101 0:00 nginx: worker process leoheng-MacBook-Pro:~ leo$
View process information for all containers
leoheng-MacBook-Pro:~ leo$ for i in `docker ps |grep Up|awk '{print $1}'` ; do echo \ && docker top $i ; done
PID USER TIME COMMAND
3208 root 0:00 nginx: master process nginx -g daemon off;
3251 101 0:00 nginx: worker process
leoheng-MacBook-Pro:~ leo$4. logs
Command Interpretation: Get the container log
Parameters:
- f: Tracking log output
- since: Displays all logs for a start time
- t: Display timestamps
--tail: List only the latest N container logs
leoheng-MacBook-Pro:~ leo$ docker logs -f nginx 172.17.0.1 - - [08/Dec/2018:03:22:35 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36" "-" 2018/12/08 03:22:36 [error] 24#24: *1 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 172.17.0.1, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "192.168.1.3:8080", referrer: "http://192.168.1.3:8080/" 172.17.0.1 - - [08/Dec/2018:03:22:36 +0000] "GET /favicon.ico HTTP/1.1" 404 555 "http://192.168.1.3:8080/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36" "-" 172.17.0.1 - - [08/Dec/2018:03:22:47 +0000] "GET / HTTP/1.1" 304 0 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36" "-" 172.17.0.1 - - [08/Dec/2018:03:23:48 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.2 Safari/605.1.15" "-" 2018/12/08 03:23:48 [error] 24#24: *5 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 172.17.0.1, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "192.168.1.3:8080", referrer: "http://192.168.1.3:8080/" 172.17.0.1 - - [08/Dec/2018:03:23:48 +0000] "GET /favicon.ico HTTP/1.1" 404 153 "http://192.168.1.3:8080/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.2 Safari/605.1.15" "-"
View the latest 5 logs of container nginx from 2018/12/8
leoheng-MacBook-Pro:~ leo$ docker logs --since="2018-12-08" --tail=5 nginx 172.17.0.1 - - [08/Dec/2018:03:22:36 +0000] "GET /favicon.ico HTTP/1.1" 404 555 "http://192.168.1.3:8080/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36" "-" 172.17.0.1 - - [08/Dec/2018:03:22:47 +0000] "GET / HTTP/1.1" 304 0 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36" "-" 172.17.0.1 - - [08/Dec/2018:03:23:48 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.2 Safari/605.1.15" "-" 2018/12/08 03:23:48 [error] 24#24: *5 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 172.17.0.1, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "192.168.1.3:8080", referrer: "http://192.168.1.3:8080/" 172.17.0.1 - - [08/Dec/2018:03:23:48 +0000] "GET /favicon.ico HTTP/1.1" 404 153 "http://192.168.1.3:8080/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.2 Safari/605.1.15" "-" leoheng-MacBook-Pro:~ leo$
5. events
Command Interpretation: Getting Real-time Events from the Server
Parameters:
- f: filter events according to conditions;
since: Displays all events from the specified timestamp;
Until: the running time is displayed until the specified time;
Get all events for 2018/12/8
leoheng-MacBook-Pro:~ leo$ docker events --since="2018-12-08" 2018-12-08T09:46:57.832351102+08:00 image pull nginx:latest (maintainer=NGINX Docker Maintainers <docker-maint@nginx.com>, name=nginx) 2018-12-08T09:46:57.938764857+08:00 container create 3a9e561b7629c6880c776a9331dcc9d052685f08c98f58c940e1a164c1f8d77c (image=nginx:latest, maintainer=NGINX Docker Maintainers <docker-maint@nginx.com>, name=mynginx) 2018-12-08T10:23:52.553078826+08:00 container create feea481119cb053e84bf3bda6f1b29beaddb3f91899f4d28775c4015f0dafa2f (image=nginx:latest, maintainer=NGINX Docker Maintainers <docker-maint@nginx.com>, name=nginx) 2018-12-08T10:23:52.678445332+08:00 network connect 2651d136cf62ba9dc0ebe674eca0c1d9f73cf4230e345aec01be0ddd797715bb (container=feea481119cb053e84bf3bda6f1b29beaddb3f91899f4d28775c4015f0dafa2f, name=bridge, type=bridge) 2018-12-08T10:23:53.133906581+08:00 container start feea481119cb053e84bf3bda6f1b29beaddb3f91899f4d28775c4015f0dafa2f (image=nginx:latest, maintainer=NGINX Docker Maintainers <docker-maint@nginx.com>, name=nginx) 2018-12-08T10:25:07.949445750+08:00 container destroy 3a9e561b7629c6880c776a9331dcc9d052685f08c98f58c940e1a164c1f8d77c (image=nginx:latest, maintainer=NGINX Docker Maintainers <docker-maint@nginx.com>, name=mynginx)
If the specified time is in seconds, the time needs to be converted to a timestamp. If the time is a date, it can be used directly, such as - since="2016-07-01".
6. wait
Command description: Blocking runs until the container stops, and then prints out its exit code
leoheng-MacBook-Pro:~ leo$ docker wait nginx
7. attach
Command Interpretation: Connect to a running container
sig-proxy: Prevent CTRL+D or CRTL+C from exiting containers
leoheng-MacBook-Pro:~ leo$ docker attach --sig-proxy=false nginx 172.17.0.1 - - [08/Dec/2018:03:37:47 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.2 Safari/605.1.15" "-"
8. port
Command Interpretation: List the port mapping of the specified container, or find the port that will PRIVATE_PORT NAT to the public.
leoheng-MacBook-Pro:~ leo$ docker port nginx 22/tcp -> 0.0.0.0:222 80/tcp -> 0.0.0.0:8080 leoheng-MacBook-Pro:~ leo$
9. export
Command Interpretation: Export the file system as a tar archive file to STDOUT. Save the current mirror state.
leoheng-MacBook-Pro:~ leo$ docker export -o nginx-leo.tar nginx leoheng-MacBook-Pro:~ leo$ ls nginx-leo.tar nginx-leo.tar leoheng-MacBook-Pro:~ leo$
3. Container rootfs command
1. commit
Command Interpretation: Create a new image from the container and submit it to the mirror library.
Parameters:
- a: Submitted mirror author;
- c: Use Dockerfile instructions to create images;
- m: Description at the time of submission;
- p: When commit, suspend the container.
leoheng-MacBook-Pro:~ leo$ docker commit -a "leo" -m "leo commit nginx test" nginx leo:v1 sha256:6ec4ef7718a8b311f261e8eb12f2b55a42f631e75ad7cd7a5c105620c6abd7ce leoheng-MacBook-Pro:~ leo$ docker images leo:v1 REPOSITORY TAG IMAGE ID CREATED SIZE leo v1 6ec4ef7718a8 10 seconds ago 109MB leoheng-MacBook-Pro:~ leo$
2. cp
Command Description: Used for data copy between container and host
Description of parameters:
- L: Keep links in source targets
leoheng-MacBook-Pro:~ leo$ echo "nginxtest" >> test leoheng-MacBook-Pro:~ leo$ docker cp test nginx:/ leoheng-MacBook-Pro:~ leo$ docker exec -it nginx /bin/bash root@96ddce20c551:/# cat test nginxtest root@96ddce20c551:/#
3. diff
Command description: Check file structure changes in containers
leoheng-MacBook-Pro:~ leo$ docker diff nginx C /run A /run/nginx.pid C /var C /var/cache C /var/cache/nginx A /var/cache/nginx/client_temp A /var/cache/nginx/fastcgi_temp A /var/cache/nginx/proxy_temp A /var/cache/nginx/scgi_temp A /var/cache/nginx/uwsgi_temp C /root A /root/.bash_history A /test leoheng-MacBook-Pro:~ leo$
IV. Mirror Warehouse
1. login/logout
Command Interpretation: Log in or log out of docker mirror warehouse
Parameters:
- u: Login username
- p: Login password
Because I downloaded the docker client and typed it directly
leoheng-MacBook-Pro:~ leo$ docker login –u leo –p ******* Authenticating with existing credentials... Login Succeeded leoheng-MacBook-Pro:~ leo$
2. pull
Command Interpretation: Get the mirror from Mirror Kura to update the specified image alive
Parameters:
- a: pull all tagged images
- disable-content-trust: Ignore mirror checking and open by default
leoheng-MacBook-Pro:~ leo$ docker pull nginx
3. push
Command Interpretation: To upload the local image to the mirror warehouse, you must first log in to the mirror warehouse.
Parameters:
- disable-content-trust: Ignore mirror checking and open by default
leoheng-MacBook-Pro:~ leo$ docker push leo:v1 The push refers to repository [docker.io/library/leo] fae8ad5437e1: Preparing ece4f9fdef59: Preparing ad5345cbb119: Preparing ef68f6734aa4: Preparing denied: requested access to the resource is denied leoheng-MacBook-Pro:~ leo$
4. search
Command Interpretation: Find Mirror from docker hub
Parameters:
- Automated: List only the mirrors of the automated build type;
no-trunc: Displays a complete mirror description;
- s: Lists images with a collection number not less than the specified value.
leoheng-MacBook-Pro:~ leo$ docker search nginx NAME DESCRIPTION STARS OFFICIAL AUTOMATED nginx Official build of Nginx. 10502 [OK] jwilder/nginx-proxy Automated Nginx reverse proxy for docker con… 1483 [OK] richarvey/nginx-php-fpm Container running Nginx + PHP-FPM capable of… 660 [OK] jrcs/letsencrypt-nginx-proxy-companion LetsEncrypt container to use with nginx as p… 450 [OK] kong Open-source Microservice & API Management la… 257 [OK] webdevops/php-nginx Nginx with PHP-FPM 118 [OK]
V. Local Mirror Management
1. images
Command Interpretation: List Local Mirrors
parameter
- a: List all local mirrors (including the intermediate image layer, by default, filter out the intermediate image layer);
digests: Display summary information of the mirror image;
- f: Display a mirror that meets the criteria;
Form: Template file specifying the return value;
no-trunc: Displays complete mirror information;
- q: Only the mirror ID is displayed.
leoheng-MacBook-Pro:~ leo$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE leo v1 6ec4ef7718a8 5 hours ago 109MB nginx latest 568c4670fa80 10 days ago 109MB leoheng-MacBook-Pro:~ leo$
2. tag
Command description: Mark the local image and place it in a warehouse
leoheng-MacBook-Pro:~ leo$ docker tag 6ec4ef7718a8 leoheng/leo:v1 leoheng-MacBook-Pro:~ leo$ docker images leoheng/leo:v1 REPOSITORY TAG IMAGE ID CREATED SIZE leoheng/leo v1 6ec4ef7718a8 5 hours ago 109MB leoheng-MacBook-Pro:~ leo$
3. history
Command Interpretation: View the Creation History of the Specified Image
Parameters:
- H: Print mirror size and date in readable format, default to true;
- no-trunc: Displays complete submission records;
- q: List only the submission record ID.
leoheng-MacBook-Pro:~ leo$ docker history leoheng/leo:v1 IMAGE CREATED CREATED BY SIZE COMMENT 6ec4ef7718a8 5 hours ago nginx -g daemon off; 108B leo commit nginx test 568c4670fa80 10 days ago /bin/sh -c #(nop) CMD ["nginx" "-g" "daemon… 0B <missing> 10 days ago /bin/sh -c #(nop) STOPSIGNAL [SIGTERM] 0B <missing> 10 days ago /bin/sh -c #(nop) EXPOSE 80/tcp 0B <missing> 10 days ago /bin/sh -c ln -sf /dev/stdout /var/log/nginx… 22B <missing> 10 days ago /bin/sh -c set -x && apt-get update && apt… 53.8MB <missing> 10 days ago /bin/sh -c #(nop) ENV NJS_VERSION=1.15.7.0.… 0B <missing> 10 days ago /bin/sh -c #(nop) ENV NGINX_VERSION=1.15.7-… 0B <missing> 3 weeks ago /bin/sh -c #(nop) LABEL maintainer=NGINX Do… 0B <missing> 3 weeks ago /bin/sh -c #(nop) CMD ["bash"] 0B <missing> 3 weeks ago /bin/sh -c #(nop) ADD file:dab9baf938799c515… 55.3MB leoheng-MacBook-Pro:~ leo$
4. build
Command Interpretation: Used to create mirrors for Dockerfile
parameter
build-arg=[]: Sets the variables at the time of image creation;
- cpu-shares: Setting the weight of CPU usage;
- cpu-period: Limit the CPU CFS cycle;
- cpu-quota: Limit CPU CFS quotas;
- cpuset-cpus: the specified CPU id;
- cpuset-mems: Specifies the memory id to be used;
- disable-content-trust: Ignore validation and open by default;
- f: Specify the Dockerfile path to use;
force-rm: Delete the intermediate container in the process of setting up the image;
- isolation: using container isolation technology;
- label=[]: Setting metadata for mirroring;
- m: Set the maximum memory;
memory-swap: Set the maximum value of Swap to memory + swap, and "-1" means unlimited swap.
no-cache: The process of creating an image does not use caching;
- pull: Try to update the new version of the mirror;
- quiet, -q: quiet mode, only output mirror ID after success;
- rm: Delete the intermediate container after setting the mirror successfully.
- shm-size: Set the size of / dev/shm with a default value of 64M;
-- ulimit: Ulimit configuration.
- tag, -t: Mirror name and label, usually in name:tag or name format; multiple labels can be set for a single image in a single build.
Network: default. Setting the network mode of RUN instructions during construction
Create an image using the Dockerfile of the current directory labeled runoob/ubuntu:v1.
docker build -t runoob/ubuntu:v1 .
Create an image using the Dockerfile of the URL github.com/creack/docker-firefox.
docker build github.com/creack/docker-firefox
You can also use the location of the - f Dockerfile file:
docker build -f /path/to/a/Dockerfile .
Before the Docker daemon executes the instructions in the Dockerfile, it first checks the grammar of the Dockerfile and returns if there is a grammar error:
$ docker build -t test/myapp . Sending build context to Docker daemon 2.048 kB Error response from daemon: Unknown instruction: RUNCMD
5. save
Command Interpretation: Save the specified image as a tar Archive
leoheng-MacBook-Pro:~ leo$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 96ddce20c551 nginx:latest "nginx -g 'daemon of…" 6 hours ago Up 5 hours 0.0.0.0:222->22/tcp, 0.0.0.0:8080->80/tcp nginx leoheng-MacBook-Pro:~ leo$ docker save -o nginx_leo_v1.tar nginx leoheng-MacBook-Pro:~ leo$ ls nginx_leo_v1.tar nginx_leo_v1.tar leoheng-MacBook-Pro:~ leo$
6. import
Command Interpretation: Creating Mirrors from Archives
parameter
- c: Use docker instructions to create images;
- m: Description at the time of submission;
leoheng-MacBook-Pro:~ leo$ docker import nginx_leo_v1.tar leoheng/leo:v1 sha256:7afc0a247e015d0984f67a8b694c7c8e8363138c7ca6e4c3c69b583c2322774e leoheng-MacBook-Pro:~ leo$
7. rmi
Command Interpretation: Delete one or more local mirrors
Parameters:
- f: Forced deletion;
no-prune: The process image of the image is not removed by default.
leoheng-MacBook-Pro:~ leo$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE leoheng/leo v1 7afc0a247e01 About a minute ago 113MB nginx latest 568c4670fa80 10 days ago 109MB leoheng-MacBook-Pro:~ leo$ docker rmi 7afc0a247e01 Untagged: leoheng/leo:v1 Deleted: sha256:7afc0a247e015d0984f67a8b694c7c8e8363138c7ca6e4c3c69b583c2322774e Deleted: sha256:c0b54e54ff0bfd2330f0a541c02bf5706674cc3d2b0c7899457a5d543acaacff leoheng-MacBook-Pro:~ leo$
6. View docker version information
1. info
Command Interpretation: Display docker system information, including mirrors and number of containers
leoheng-MacBook-Pro:~ leo$ docker info Containers: 1 Running: 1 Paused: 0 Stopped: 0 Images: 2 Server Version: 18.09.0 Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Native Overlay Diff: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: 468a545b9edcd5932818eb9de8e72413e616e86e runc version: 69663f0bd4b60df09991c08812a60108003fa340 init version: fec3683 Security Options: seccomp Profile: default Kernel Version: 4.9.125-linuxkit Operating System: Docker for Mac OSType: linux Architecture: x86_64 CPUs: 2 Total Memory: 1.952GiB Name: linuxkit-025000000001 ID: 4CPI:PVLC:WBJL:QQPX:JP2X:B7RP:MGYE:SA7Y:ULC5:YOSL:RAYE:EMFD
2. version
Command Interpretation: Display docker version information
Parameters:
- f: A template file that specifies the return value.
leoheng-MacBook-Pro:~ leo$ docker version Client: Docker Engine - Community Version: 18.09.0 API version: 1.39 Go version: go1.10.4 Git commit: 4d60db4 Built: Wed Nov 7 00:47:43 2018 OS/Arch: darwin/amd64 Experimental: false Server: Docker Engine - Community Engine: Version: 18.09.0 API version: 1.39 (minimum version 1.12)+ Go version: go1.10.4 Git commit: 4d60db4 Built: Wed Nov 7 00:55:00 2018 OS/Arch: linux/amd64 Experimental: false leoheng-MacBook-Pro:~ leo$