- Currently, there are no docker images added yet:
- For now, we will pull (download) small docker image:
- Now, You have new added image:
- You can run the above docker image using either the REPOSITORY name + TAG OR Image ID:
1. "docker run" command help message:
2. Running docker image using its REPOSITORY name + TAG:
3. Running docker image using IMAGE ID:
- Now, You are going to pull CnetOS images. You can specify MORE than one images:
1. Pull latest CnetOS image:
2. Pull Specific CentOS image (in this example CentOS 6):
- I will -also- Pull nginx images:
- In order to inspect (show information about) image, you can use "docker inspect" command:
[user@docker ~]$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE- You can try to search whatever distro you want, for example: search for CentOS (First item is the official docker image for CentOS distro):
[user@docker ~]$ docker help search
Usage: docker search [OPTIONS] TERM
Search the Docker Hub for images
Options:
-f, --filter value Filter output based on conditions provided (default [])
--help Print usage
--limit int Max number of search results (default 25)
--no-trunc Don't truncate output
[user@docker ~]$ docker search centos NAME DESCRIPTION STARS OFFICIAL AUTOMATED centos The official build of CentOS. 2949 [OK] jdeathe/centos-ssh CentOS-6 6.8 x86_64 / CentOS-7 7.3.1611 x8... 51 [OK] nimmis/java-centos This is docker images of CentOS 7 with dif... 20 [OK] torusware/speedus-centos Always updated official CentOS docker imag... 8 [OK] nathonfowlie/centos-jre Latest CentOS image with the JRE pre-insta... 5 [OK] centos/mariadb55-centos7 3 [OK] harisekhon/centos-java Java on CentOS (OpenJDK, tags jre/jdk7-8) 2 [OK] centos/tools Docker image that has systems administrati... 2 [OK] timhughes/centos Centos with systemd installed and running 1 [OK] blacklabelops/centos CentOS Base Image! Built and Updates Daily! 1 [OK] harisekhon/centos-scala Scala + CentOS (OpenJDK tags 2.10-jre7 - 2... 1 [OK] sgfinans/docker-centos CentOS with a running sshd and Docker 1 [OK] darksheer/centos Base Centos Image -- Updated hourly 1 [OK] centos/redis Redis built for CentOS 1 [OK] januswel/centos yum update-ed CentOS image 0 [OK] kz8s/centos Official CentOS plus epel-release 0 [OK] grayzone/centos auto build for centos. 0 [OK] smartentry/centos centos with smartentry 0 [OK] grossws/centos CentOS 6 and 7 base images with gosu and l... 0 [OK] aguamala/centos CentOS base image 0 [OK] repositoryjp/centos Docker Image for CentOS. 0 [OK] vcatechnology/centos A CentOS Image which is updated daily 0 [OK] ustclug/centos USTC centos 0 [OK] dmglab/centos CentOS with some extras - This is for the ... 0 [OK] termbox/centos CentOS 0 [OK]
- For now, we will pull (download) small docker image:
[user@docker ~]$ docker search hello-world NAME DESCRIPTION STARS OFFICIAL AUTOMATED hello-world Hello World! (an example of minimal Docker... 225 [OK] tutum/hello-world Image to test docker deployments. Has Apac... 29 [OK] dockercloud/hello-world Hello World! 9 [OK] marcells/aspnet-hello-world ASP.NET vNext - Hello World 4 [OK] bonomat/nodejs-hello-world a simple nodejs hello world container 2 [OK] carinamarina/hello-world-app This is a sample Python web application, r... 1 [OK] asakaguchi/docker-nodejs-hello-world Hello World for Docker 1 [OK] mikespuborg/dockercloud-hello-world Fix dockercloud-hello-world example for al... 1 [OK] yesimages/hello-world exercise java hello-world app 1 [OK] scottnakada/angular2-docker-hello-world Angular 2 Hello World Sample Application u... 1 [OK] neoxsys/hello-world hello-world container based on Ubuntu 16.0... 1 [OK] wowgroup/hello-world Minimal web app for testing purposes 0 [OK] waleedsamy/hello-world-expressjs-docker Hello world express sample, return `Hello ... 0 [OK] helloworld314/hello-world-docker Hello world docker 0 [OK] palamccc/node-hello-world node-hello-world 0 [OK] wodge/docker-hello-world Hello World test for auto update to Docker... 0 [OK] cyfratech/hello-world Hello World node.js application 0 [OK] brogency/hello-world simple docker hello world app powered b... 0 [OK] n8io/hello-world A simple hello world node.js app to test d... 0 [OK] nirmata/hello-world 0 [OK] navycloud/hello-world Navy hello world 0 [OK] jmreeve007/hello-world Create automated build for changes to hell... 0 [OK] gscrivano/hello-world hello world example system container 0 [OK] edenb1515/hello-world hello 0 [OK] mdzhang/docker-sinatra-hello-world (WIP) Hello World web app using Docker, Si... 0 [OK]
[user@docker ~]$ docker help pull
Usage: docker pull [OPTIONS] NAME[:TAG|@DIGEST]
Pull an image or a repository from a registry
Options:
-a, --all-tags Download all tagged images in the repository
--disable-content-trust Skip image verification (default true)
--help Print usage
[user@docker ~]$ docker pull hello-world Using default tag: latest latest: Pulling from library/hello-world c04b14da8d14: Pull complete Digest: sha256:0256e8a36e2070f7bf2d0b0763dbabdd67798512411de4cdcf9431a1feb60fd9 Status: Downloaded newer image for hello-world:latest
- Now, You have new added image:
[user@docker ~]$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE hello-world latest c54a2cc56cbb 5 months ago 1.848 kB
- You can run the above docker image using either the REPOSITORY name + TAG OR Image ID:
1. "docker run" command help message:
[user@docker ~]$ docker help run
Usage: docker run [OPTIONS] IMAGE [COMMAND] [ARG...]
Run a command in a new container
Options:
--add-host value Add a custom host-to-IP mapping (host:ip) (default [])
-a, --attach value Attach to STDIN, STDOUT or STDERR (default [])
--blkio-weight value Block IO (relative weight), between 10 and 1000
--blkio-weight-device value Block IO weight (relative device weight) (default [])
--cap-add value Add Linux capabilities (default [])
--cap-drop value Drop Linux capabilities (default [])
--cgroup-parent string Optional parent cgroup for the container
--cidfile string Write the container ID to the file
--cpu-percent int CPU percent (Windows only)
--cpu-period int Limit CPU CFS (Completely Fair Scheduler) period
--cpu-quota int Limit CPU CFS (Completely Fair Scheduler) quota
-c, --cpu-shares int CPU shares (relative weight)
--cpuset-cpus string CPUs in which to allow execution (0-3, 0,1)
--cpuset-mems string MEMs in which to allow execution (0-3, 0,1)
-d, --detach Run container in background and print container ID
--detach-keys string Override the key sequence for detaching a container
--device value Add a host device to the container (default [])
--device-read-bps value Limit read rate (bytes per second) from a device (default [])
--device-read-iops value Limit read rate (IO per second) from a device (default [])
--device-write-bps value Limit write rate (bytes per second) to a device (default [])
--device-write-iops value Limit write rate (IO per second) to a device (default [])
--disable-content-trust Skip image verification (default true)
--dns value Set custom DNS servers (default [])
--dns-opt value Set DNS options (default [])
--dns-search value Set custom DNS search domains (default [])
--entrypoint string Overwrite the default ENTRYPOINT of the image
-e, --env value Set environment variables (default [])
--env-file value Read in a file of environment variables (default [])
--expose value Expose a port or a range of ports (default [])
--group-add value Add additional groups to join (default [])
--health-cmd string Command to run to check health
--health-interval duration Time between running the check
--health-retries int Consecutive failures needed to report unhealthy
--health-timeout duration Maximum time to allow one check to run
--help Print usage
-h, --hostname string Container host name
-i, --interactive Keep STDIN open even if not attached
--io-maxbandwidth string Maximum IO bandwidth limit for the system drive (Windows only)
--io-maxiops uint Maximum IOps limit for the system drive (Windows only)
--ip string Container IPv4 address (e.g. 172.30.100.104)
--ip6 string Container IPv6 address (e.g. 2001:db8::33)
--ipc string IPC namespace to use
--isolation string Container isolation technology
--kernel-memory string Kernel memory limit
-l, --label value Set meta data on a container (default [])
--label-file value Read in a line delimited file of labels (default [])
--link value Add link to another container (default [])
--link-local-ip value Container IPv4/IPv6 link-local addresses (default [])
--log-driver string Logging driver for the container
--log-opt value Log driver options (default [])
--mac-address string Container MAC address (e.g. 92:d0:c6:0a:29:33)
-m, --memory string Memory limit
--memory-reservation string Memory soft limit
--memory-swap string Swap limit equal to memory plus swap: '-1' to enable unlimited swap
--memory-swappiness int Tune container memory swappiness (0 to 100) (default -1)
--name string Assign a name to the container
--network string Connect a container to a network (default "default")
--network-alias value Add network-scoped alias for the container (default [])
--no-healthcheck Disable any container-specified HEALTHCHECK
--oom-kill-disable Disable OOM Killer
--oom-score-adj int Tune host's OOM preferences (-1000 to 1000)
--pid string PID namespace to use
--pids-limit int Tune container pids limit (set -1 for unlimited)
--privileged Give extended privileges to this container
-p, --publish value Publish a container's port(s) to the host (default [])
-P, --publish-all Publish all exposed ports to random ports
--read-only Mount the container's root filesystem as read only
--restart string Restart policy to apply when a container exits (default "no")
--rm Automatically remove the container when it exits
--runtime string Runtime to use for this container
--security-opt value Security Options (default [])
--shm-size string Size of /dev/shm, default value is 64MB
--sig-proxy Proxy received signals to the process (default true)
--stop-signal string Signal to stop a container, SIGTERM by default (default "SIGTERM")
--storage-opt value Storage driver options for the container (default [])
--sysctl value Sysctl options (default map[])
--tmpfs value Mount a tmpfs directory (default [])
-t, --tty Allocate a pseudo-TTY
--ulimit value Ulimit options (default [])
-u, --user string Username or UID (format: [:])
--userns string User namespace to use
--uts string UTS namespace to use
-v, --volume value Bind mount a volume (default [])
--volume-driver string Optional volume driver for the container
--volumes-from value Mount volumes from the specified container(s) (default [])
-w, --workdir string Working directory inside the container
2. Running docker image using its REPOSITORY name + TAG:
[user@docker ~]$ docker run hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker Hub account:
https://hub.docker.com
For more examples and ideas, visit:
https://docs.docker.com/engine/userguide/
[user@docker ~]$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE hello-world latest c54a2cc56cbb 5 months ago 1.848 kB
3. Running docker image using IMAGE ID:
[user@docker ~]$ docker run c54a2cc56cbb
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker Hub account:
https://hub.docker.com
For more examples and ideas, visit:
https://docs.docker.com/engine/userguide/
- Now, You are going to pull CnetOS images. You can specify MORE than one images:
1. Pull latest CnetOS image:
[user@docker ~]$ docker pull centos Using default tag: latest latest: Pulling from library/centos 45a2e645736c: Pull complete Digest: sha256:c577af3197aacedf79c5a204cd7f493c8e07ffbce7f88f7600bf19c688c38799 Status: Downloaded newer image for centos:latest
[user@docker ~]$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos latest 67591570dd29 11 days ago 191.8 MB hello-world latest c54a2cc56cbb 5 months ago 1.848 kB
2. Pull Specific CentOS image (in this example CentOS 6):
[user@docker ~]$ docker pull centos:centos6 centos6: Pulling from library/centos 32c4f4fef1c6: Pull complete Digest: sha256:1092df198d3da4faccc0660941b763ce5adf133b0ec71701b760d6f173c1f47b Status: Downloaded newer image for centos:centos6
[user@docker ~]$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos latest 67591570dd29 11 days ago 191.8 MB centos centos6 8315978ceaaa 7 weeks ago 194.6 MB hello-world latest c54a2cc56cbb 5 months ago 1.848 kB
- I will -also- Pull nginx images:
[user@docker ~]$ docker search nginx NAME DESCRIPTION STARS OFFICIAL AUTOMATED nginx Official build of Nginx. 4909 [OK] jwilder/nginx-proxy Automated Nginx reverse proxy for docker c... 901 [OK] richarvey/nginx-php-fpm Container running Nginx + PHP-FPM capable ... 322 [OK] million12/nginx-php Nginx + PHP-FPM 5.5, 5.6, 7.0 (NG), CentOS... 75 [OK] webdevops/php-nginx Nginx with PHP-FPM 63 [OK] maxexcloo/nginx-php Framework container with nginx and PHP-FPM... 58 [OK] h3nrik/nginx-ldap NGINX web server with LDAP/AD, SSL and pro... 33 [OK] bitnami/nginx Bitnami nginx Docker Image 21 [OK] gists/nginx Nginx on Alpine 8 [OK] evild/alpine-nginx Minimalistic Docker image with Nginx 8 [OK] maxexcloo/nginx Framework container with nginx installed. 7 [OK] webdevops/nginx Nginx container 7 [OK] blacklabelops/nginx Dockerized Nginx Reverse Proxy Server. 4 [OK] 1science/nginx Nginx Docker images that include Consul Te... 4 [OK] ixbox/nginx Nginx on Alpine Linux. 3 [OK] drupaldocker/nginx NGINX for Drupal 3 [OK] servivum/nginx Nginx Docker Image with Useful Tools 2 [OK] frekele/nginx docker run --rm --name nginx -p 80:80 -p 4... 2 [OK] yfix/nginx Yfix own build of the nginx-extras package 2 [OK] xataz/nginx Light nginx image 2 [OK] dock0/nginx Arch container running nginx 2 [OK] tozd/nginx Dockerized nginx. 1 [OK] unblibraries/nginx Baseline non-PHP nginx container 0 [OK] c4tech/nginx Several nginx images for web applications. 0 [OK] watsco/nginx nginx:1.11-alpine 0 [OK]
[user@docker ~]$ docker pull nginx Using default tag: latest latest: Pulling from library/nginx 75a822cd7888: Pull complete 64f0219ba3ea: Pull complete 325b624bee1c: Pull complete Digest: sha256:2a07a07e5bbf62e7b583cbb5257357c7e0ba1a8e9650e8fa76d999a60968530f Status: Downloaded newer image for nginx:latest
[user@docker ~]$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE nginx latest 19146d5729dc 6 days ago 181.6 MB centos latest 67591570dd29 11 days ago 191.8 MB centos centos6 8315978ceaaa 7 weeks ago 194.6 MB hello-world latest c54a2cc56cbb 5 months ago 1.848 kB
- In order to inspect (show information about) image, you can use "docker inspect" command:
1. Inspect "nginx" image:
2. Inspect "hello-world" image:
[user@docker ~]$ docker inspect nginx
[
{
"Id": "sha256:19146d5729dc303af0b89be53ddfe8ece1920d9467e2b5a903d846f2fe0e9b5d",
"RepoTags": [
"nginx:latest"
],
"RepoDigests": [
"nginx@sha256:2a07a07e5bbf62e7b583cbb5257357c7e0ba1a8e9650e8fa76d999a60968530f"
],
"Parent": "",
"Comment": "",
"Created": "2016-12-20T19:45:40.527888877Z",
"Container": "7ba1e7256528292bd4101713f0427b2b56e558e951a0f86172cd5d9a11fe5228",
"ContainerConfig": {
"Hostname": "45f28166fed1",
"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=1.11.7-1~jessie"
],
"Cmd": [
"/bin/sh",
"-c",
"#(nop) ",
"CMD [\"nginx\" \"-g\" \"daemon off;\"]"
],
"ArgsEscaped": true,
"Image": "sha256:0a068f0983fd1af0af01514aa61169c1ccdd62c04442c842c95f01ff44c29a34",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": [],
"Labels": {}
},
"DockerVersion": "1.12.3",
"Author": "NGINX Docker Maintainers \"docker-maint@nginx.com\"",
"Config": {
"Hostname": "45f28166fed1",
"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=1.11.7-1~jessie"
],
"Cmd": [
"nginx",
"-g",
"daemon off;"
],
"ArgsEscaped": true,
"Image": "sha256:0a068f0983fd1af0af01514aa61169c1ccdd62c04442c842c95f01ff44c29a34",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": [],
"Labels": {}
},
"Architecture": "amd64",
"Os": "linux",
"Size": 181566028,
"VirtualSize": 181566028,
"GraphDriver": {
"Name": "devicemapper",
"Data": {
"DeviceId": "11",
"DeviceName": "docker-202:2-850801-c8e2a0b64d8bcaa92288f6269c71663d42d1efc296e8499a6558de5a1b6feda6",
"DeviceSize": "10737418240"
}
},
"RootFS": {
"Type": "layers",
"Layers": [
"sha256:b6ca02dfe5e62c58dacb1dec16eb42ed35761c15562485f9da9364bb7c90b9b3",
"sha256:ee3b1534c826d789219ac39b263722c3af9f702610238e701b7d1ba41ac88fac",
"sha256:e03d01018b72c0f7fcdad380d976cb01af9bc0afe52d1d6b8d5804959512c857"
]
}
}
]
2. Inspect "hello-world" image:
[user@docker ~]$ docker inspect hello-world
[
{
"Id": "sha256:c54a2cc56cbb2f04003c1cd4507e118af7c0d340fe7e2720f70976c4b75237dc",
"RepoTags": [
"hello-world:latest"
],
"RepoDigests": [
"hello-world@sha256:0256e8a36e2070f7bf2d0b0763dbabdd67798512411de4cdcf9431a1feb60fd9"
],
"Parent": "",
"Comment": "",
"Created": "2016-07-01T19:39:27.532838486Z",
"Container": "562cadb4d17bbf30b58ab0f6a870be60c8d36d2e401bf637f1d2d7f8afbef666",
"ContainerConfig": {
"Hostname": "c65bc554a4b7",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd": [
"/bin/sh",
"-c",
"#(nop) CMD [\"/hello\"]"
],
"Image": "sha256:0f9bb7da10de694b2babd0c1a3b75582a0db3395625cae5ab0fe537ce1cd831e",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": null,
"Labels": {}
},
"DockerVersion": "1.10.3",
"Author": "",
"Config": {
"Hostname": "c65bc554a4b7",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd": [
"/hello"
],
"Image": "sha256:0f9bb7da10de694b2babd0c1a3b75582a0db3395625cae5ab0fe537ce1cd831e",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": null,
"Labels": {}
},
"Architecture": "amd64",
"Os": "linux",
"Size": 1848,
"VirtualSize": 1848,
"GraphDriver": {
"Name": "devicemapper",
"Data": {
"DeviceId": "2",
"DeviceName": "docker-202:2-850801-3c6ab0acbcc8082fc922caf035a7af5d5d457f489e4888579848fc5aeb58cf61",
"DeviceSize": "10737418240"
}
},
"RootFS": {
"Type": "layers",
"Layers": [
"sha256:a02596fdd012f22b03af6ad7d11fa590c57507558357b079c3e8cebceb4262d7"
]
}
}
]
