table of Contents
tips: Automatic completion tool
、 、 Hello world
docker command
[root@yangrenhao ~]# docker //View the docker command help
Usage: docker [OPTIONS] COMMAND
A self-sufficient runtime for containers
Options:
--config string Location of client config files (default "/root/.docker")
-D, --debug Enable debug mode
-H, --host list Daemon socket(s) to connect to
-l, --log-level string Set the logging level ("debug"|"info"|"warn"|"error"|"fatal")
(default "info")
--tls Use TLS; implied by --tlsverify
--tlscacert string Trust certs signed only by this CA (default "/root/.docker/ca.pem")
--tlscert string Path to TLS certificate file (default "/root/.docker/cert.pem")
--tlskey string Path to TLS key file (default "/root/.docker/key.pem")
--tlsverify Use TLS and verify the remote
-v, --version Print version information and quit
Management Commands:
config Manage Docker configs
container Manage containers
image Manage images
network Manage networks
node Manage Swarm nodes
plugin Manage plugins
secret Manage Docker secrets
service Manage services
stack Manage Docker stacks
swarm Manage Swarm
system Manage Docker
trust Manage trust on Docker images
volume Manage volumes
Commands:
attach Attach local standard input, output, and error streams to a running container
build Build an image from a Dockerfile
commit Create a new image from a container's changes
cp Copy files/folders between a container and the local filesystem
create Create a new container
diff Inspect changes to files or directories on a container's filesystem
events Get real time events from the server
exec Run a command in a running container
export Export a container's filesystem as a tar archive
history Show the history of an image
images List images
import Import the contents from a tarball to create a filesystem image
info Display system-wide information
inspect Return low-level information on Docker objects
kill Kill one or more running containers
load Load an image from a tar archive or STDIN
login Log in to a Docker registry
logout Log out from a Docker registry
logs Fetch the logs of a container
pause Pause all processes within one or more containers
port List port mappings or a specific mapping for the container
ps List containers
pull Pull an image or a repository from a registry
push Push an image or a repository to a registry
rename Rename a container
restart Restart one or more containers
rm Remove one or more containers
rmi Remove one or more images
run Run a command in a new container
save Save one or more images to a tar archive (streamed to STDOUT by default)
search Search the Docker Hub for images
start Start one or more stopped containers
stats Display a live stream of container(s) resource usage statistics
stop Stop one or more running containers
tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
top Display the running processes of a container
unpause Unpause all processes within one or more containers
update Update configuration of one or more containers
version Show the Docker version information
wait Block until one or more containers stop, then print their exit codes
Run 'docker COMMAND --help' for more information on a command.docker run hello-world
[root@yangrenhao ~]# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete
Digest: sha256:fc6a51919cfeb2e6763f62b6d9e8815acbf7cd2e476ea353743570610737b752
Status: Downloaded newer image for 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.
(amd64)
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 ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/docker images
[root@yangrenhao ~]# docker images //View installed docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
tomcat latest 6fa48e047721 2 months ago 507MB
registry.aliyuncs.com/google_containers/kube-proxy v1.17.0 7d54289267dc 2 months ago 116MB
registry.aliyuncs.com/google_containers/kube-apiserver v1.17.0 0cae8d5cc64c 2 months ago 171MB
registry.aliyuncs.com/google_containers/kube-scheduler v1.17.0 78c190f736b1 2 months ago 94.4MB
registry.aliyuncs.com/google_containers/kube-controller-manager v1.17.0 5eb3b7486872 2 months ago 161MB
registry.aliyuncs.com/google_containers/coredns 1.6.5 70f311871ae1 3 months ago 41.6MB
registry.aliyuncs.com/google_containers/etcd 3.4.3-0 303ce5db0e90 4 months ago 288MB
quay.io/coreos/flannel v0.11.0-amd64 ff281650a721 13 months ago 52.6MB
quay-mirror.qiniu.com/coreos/flannel v0.11.0-amd64 ff281650a721 13 months ago 52.6MB
hello-world latest fce289e99eb9 14 months ago 1.84kB
registry.aliyuncs.com/google_containers/pause 3.1 da86e6ba6ca1 2 years ago 742kB
docker ps -a
[root@yangrenhao ~]# docker ps
Show only running
[root@yangrenhao ~]# docker ps -a
Show all running, including abnormal exit
[root@yangrenhao ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
93331fbd75ed hello-world "/hello" 24 hours ago Exited (0) 24 hours ago amazing_liskov
ps afx | grep docker -A 1
View the detailed parent-child relationship of the docker process
[root@yangrenhao ~]# ps afx |grep docker -A 1
9264 pts/1 Sl+ 0:01 | \_ docker run -d -p 80:80 httpd
6578 ? Ss 0:00 \_ sshd: root@pts/2
--
13746 pts/2 S+ 0:00 \_ grep --color=auto docker -A 1
1074 ? Ss 0:43 /usr/sbin/crond -n
--
11486 ? Ssl 1617:07 /usr/bin/dockerd
11493 ? Ssl 169:26 \_ docker-containerd --config /var/run/docker/containerd/containerd.toml
12513 ? Sl 5:14 | \_ docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/cefe736981aacb01e7424b524ed5a215b5cde820d30438661f48cf60de8023e7 -address /var/run/docker/containerd/docker-containerd.sock -containerd-binary /usr/bin/docker-containerd -runtime-root /var/run/docker/runtime-runc
12572 ? Ss 0:00 | | \_ /pause
12523 ? Sl 4:48 | \_ docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/7cd116581c77968660c58c9535d63db7b4404b4897e468e0f7fb33f9ba33ed2f -address /var/run/docker/containerd/docker-containerd.sock -containerd-binary /usr/bin/docker-containerd -runtime-root /var/run/docker/runtime-runc
12591 ? Ss 0:00 | | \_ /pause
12547 ? Sl 4:57 | \_ docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/f9aecdc5c372ccde3ae4f2757b4c514586ce8279fd747874a45633f9a7c21be0 -address /var/run/docker/containerd/docker-containerd.sock -containerd-binary /usr/bin/docker-containerd -runtime-root /var/run/docker/runtime-runc
12603 ? Ss 0:00 | | \_ /pause
12578 ? Sl 4:43 | \_ docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/2d4b9788888e17ff47f1a78327a3b7278202851bf3e10783989b215e88ac4cae -address /var/run/docker/containerd/docker-containerd.sock -containerd-binary /usr/bin/docker-containerd -runtime-root /var/run/docker/runtime-runc
12614 ? Ss 0:00 | | \_ /pause
12695 ? Sl 5:22 | \_ docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/f0bef593547ba62223d9f1de6fc0a30da10a186523a889625ffcc6b29ef10b07 -address /var/run/docker/containerd/docker-containerd.sock -containerd-binary /usr/bin/docker-containerd -runtime-root /var/run/docker/runtime-runc
23571 ? Sl 0:44 | \_ docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/b80c51d7d4d0d1f2b75297059224c9ddb86f4724d0d51058294215d7e1d41b0b -address /var/run/docker/containerd/docker-containerd.sock -containerd-binary /usr/bin/docker-containerd -runtime-root /var/run/docker/runtime-runc
23630 ? Ssl 81:58 | \_ kube-scheduler --authentication-kubeconfig=/etc/kubernetes/scheduler.conf --authorization-kubeconfig=/etc/kubernetes/scheduler.conf --bind-address=127.0.0.1 --kubeconfig=/etc/kubernetes/scheduler.conf --leader-elect=true
19930 ? Sl 0:17 \_ /usr/bin/docker-proxy -proto tcp -host-ip 0.0.0.0 -host-port 8080 -container-ip 172.17.0.2 -container-port 8080
12894 ? Ssl 3333:32 /usr/bin/kubelet --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf --config=/var/lib/kubelet/config.yaml --cgroup-driver=cgroupfs --network-plugin=cni --pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.1
tips: Automatic completion tool
[root@yangrenhao ~]# yum install bash-completion
已加载插件：fastestmirror
Determining fastest mirrors
base | 3.6 kB 00:00:00
docker-ce-stable | 3.5 kB 00:00:00
epel | 5.4 kB 00:00:00
extras | 2.9 kB 00:00:00
kubernetes/signature | 454 B 00:00:00
kubernetes/signature | 1.4 kB 00:00:03 !!!
updates | 2.9 kB 00:00:00
(1/6): epel/x86_64/updateinfo | 1.0 MB 00:00:08
(2/6): kubernetes/primary | 64 kB 00:00:06
(3/6): extras/7/x86_64/primary_db | 159 kB 00:00:07
(4/6): docker-ce-stable/x86_64/primary_db | 38 kB 00:00:09
(5/6): epel/x86_64/primary_db | 6.7 MB 00:00:09
(6/6): updates/7/x86_64/primary_db | 6.7 MB 00:00:01
kubernetes 469/469
正在解决依赖关系
--> 正在检查事务
---> 软件包 bash-completion.noarch.1.2.1-6.el7 将被 安装
--> 解决依赖关系完成
依赖关系解决
================================================================================================
Package 架构 版本 源 大小
================================================================================================
正在安装:
bash-completion noarch 1:2.1-6.el7 base 85 k
事务概要
================================================================================================
安装 1 软件包
总下载量：85 k
安装大小：259 k
Is this ok [y/d/N]: y
Downloading packages:
bash-completion-2.1-6.el7.noarch.rpm | 85 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
正在安装 : 1:bash-completion-2.1-6.el7.noarch 1/1
验证中 : 1:bash-completion-2.1-6.el7.noarch 1/1
已安装:
bash-completion.noarch 1:2.1-6.el7
完毕！