Common docker commands

Common docker command Directories

• Search for images
• Get container Image
• Create an instance
• View the container list
• Create an image
• Remove one or more container instances
• Delete an image

Search for images

Search for images from docker hub.
Comand:

$ sudo docker search TERM


Options:

-- Automatically = false: whether to show only automatically created images -- no-trunc = false whether to cut the output-S, -- stars = 0 only show images with at least X stars

Example:

$ sudo docker search centos


Get container Image

Download the image from docker hub.
Comand:

$ sudo docker pull NAME[:TAG]


Example:

$ sudo docker pull centos:latest


Create an instance

Command:

$ sudo docker run [OPTIONS] IMAGE [COMMAND] [ARG...]


Options:
-A, -- attach = []Attach to stdin, stdout or stderr.
Associated with standard input, standard output, or standard error output
-C, -- CPU-shares = 0CPU quota (relative weight)
-- Cpuset = ""CPU (0-3)
-M, -- Memory = "" memory quota (Format: <number> <unit> unit = B, K, M, or G)
-- Cidfile = "" write the container instance id to a file
-D, -- detach = false: run the container in the background and output the container ID.
-- DNS = [] custom DNS Server
-- DNS-search custom DNS search domain
-E, -- Env = [] Set Environment Variables
-- Env-file = [] reading environment variables from a file
-- Entrypoint = ""Overwrite the default image entry point
-- Expose = []Expose a port of the container instead of making it public through the host
-H, -- hostname = "" container Host Name
-I, -- Interactive = false keep the standard input open even if there is no association
-- Link connection (Name: alias)
-- Lxc-Conf(Available in the lxc driver) add custom lxc options
-- Lxc-conf = "lxc. cgroup. cpuset. CPUs = 0, 1"
-- Name = "" set a name for the container
-- Net = "bridge" sets the container Network Mode
'Bridge ': Create a new network stack on the docker bridge Nic
'None': No network connection is set.
'Container: <name | ID> ': Reuse the network stack of another container
'Host': use the network stack of the host in the container.
Note: The Host Mode gives full access to the services of the local container system.
(Such as D-Bus), because it is considered unsafe.
-P, -- publish-All = false open all opened ports to the host Nic
-P, -- publish = [] Open a port of the container to the host
Format:IP: host port: Container Port
OrIP: Container Port
OrHost port: Container Port
Run the 'docker port' command to view the actual port ing.
-- Privileged = false: grant the extension permission to the container.
-- Rm = false: automatically remove the container when it exits (-DParameter conflict)
-- Sig-proxy = true proxify signals to the process (even in non-tty
Mode). sigchld is not proxied.
-T, -- tty = false: allocate a Pseudo Terminal.
-U, -- user = "" User Name or uid
-V, -- Volume = [] mount the volume to the specified directory (for example, mount from the host:-V/Host:/Container
Slave container:-V/container)
-- Volumes-from = [] mounting volumes from a specific container
-W, -- workdir = "" working directory in the container


Create a container and open a shell
$ sudo docker run -t -i centos:latest /bin/bash


View the container list

Command:

$ sudo docker ps [OPTIONS]

Option:
-A, -- all = false show all containers. By default, only running containers are displayed.
-- Before = "" Only displays the container before a container is created, including the container that is not running.
-L, -- latest = false: only the last created container is displayed, including the non-running container.
-N =-1: displays the last n created containers, including non-running containers.
-- No-trunc = false: the output is not truncated.
-Q, -- Quiet = false: only the container value ID is displayed.
-S, -- size = false display size
-- Since = "" Only displays containers after a container is created, including containers that are not running.


Create an image from a changed container instance

Command:
$ sudo docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]
Option:
-A, -- author = "" author (for example, "<cimoing & gmail.com> ")
-M, -- message = "" submit comments
-P, -- Pause = true: Tentative container when submitting


Use DockfileCreate an image

Command:
$ sudo docker build [OPTIONS] PATH | URL | -
You need to create a dockerfile. For details, see dockerfile.
Option:-- Force-Rm = false: the media container is forcibly deleted, even if the image creation fails.
-- No-Cache = false: no cache is used when a container is built.
-Q, -- Quiet = false: Detailed output is not displayed when a file is created.
-- Rm = true: when the image is created successfully, the media container is deleted.
-T, -- tag = "" when the image is created successfully, set the resource library name (and an optional tag)


Remove one or more container instances

Command:
$ sudo docker rm [OPTIONS] CONTAINER [CONTAINER...]

Remove all running containers:
$ sudo docker rm sudo docker ps -aq


Delete an image

Command:
$ sudo docker rmi IMAGE [IMAGE...]


Delete an image:
$ sudo docker rmi centos:latest