[root@localhost ~]# vim /etc/sysconfig/docker
[root@localhost ~]# cat /etc/sysconfig/docker
#启动Docker守护进程时，需要添加-H参数并指定开启的访问端口
OPTIONS='-H=tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock'
[root@localhost ~]# systemctl stop docker
[root@localhost ~]# systemctl start docker
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu latest 9140108b62dc 8 weeks ago 72.9MB
curldocker latest f1959a19ad13 2 months ago 215MB
centos centos7 7e6257c9f8d8 3 months ago 203MB
centos latest 0d120b6ccaa8 3 months ago 215MB
tomcat latest 2ae23eb477aa 3 months ago 647MB
alpine latest a24bb4013296 5 months ago 5.57MB
nigelpoulton/pluralsight-docker-ci latest dd7a37fe7c1e 10 months ago 604MB
openjdk 8-jdk-alpine a3562aa0b991 18 months ago 105MB
ansible/centos7-ansible latest 688353a31fde 3 years ago 447M
[root@localhost ~]# docker -H 127.0.0.1:2375 info
Client:
Debug Mode: false
Server:
Containers: 41
Running: 0
Paused: 0
Stopped: 41
Images: 10
Server Version: 19.03.12
Storage Driver: devicemapper
Pool Name: docker-8:3-50796903-pool
Pool Blocksize: 65.54kB
Base Device Size: 10.74GB
Backing Filesystem: xfs
Udev Sync Supported: true
Data file: /dev/loop0
Metadata file: /dev/loop1
Data loop file: /var/lib/docker/devicemapper/devicemapper/data
Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
Data Space Used: 3.102GB
Data Space Total: 107.4GB
Data Space Available: 2.195GB
Metadata Space Used: 6.431MB
Metadata Space Total: 2.147GB
Metadata Space Available: 2.141GB
Thin Pool Minimum Free Space: 10.74GB
Deferred Removal Enabled: true
Deferred Deletion Enabled: true
Deferred Deleted Device Count: 0
Library Version: 1.02.164-RHEL7 (2019-08-27)
Logging Driver: json-file
Cgroup Driver: cgroupfs
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: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 7ad184331fa3e55e52b890ea95e65ba581ae3429
runc version: dc9208a3303feef5b3839f4323d9beb36df0a9dd
init version: fec3683
Security Options:
seccomp
Profile: default
Kernel Version: 3.10.0-327.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 1.939GiB
Name: localhost.localdomain
ID: 3SVS:BMKI:E4UA:RAYU:BPEV:HV42:IUMU:ZNTU:N777:EFNO:NRUX:WA7P
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://544zxoak.mirror.aliyuncs.com/
Live Restore Enabled: false
WARNING: API is accessible on http://0.0.0.0:2375 without encryption.
Access to the remote API is equivalent to root access on the host. Refer
to the 'Docker daemon attack surface' section in the documentation for
more information: https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
WARNING: the devicemapper storage-driver is deprecated, and will be removed in a future release.
WARNING: devicemapper: usage of loopback devices is strongly discouraged for production use.
Use `--storage-opt dm.thinpooldev` to specify a custom block storage device.
# 调用/images/json接口可以获取镜像列表
# python -mjson.tool格式化json
[root@localhost ~]# curl http://localhost:2375/images/json | python -mjson.tool
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 4155 0 4155 0 0 564k 0 --:--:-- --:--:-- --:--:-- 579k
[
{
"Containers": -1,
"Created": 1601073270,
"Id": "sha256:9140108b62dc87d9b278bb0d4fd6a3e44c2959646eb966b86531306faa81b09b",
"Labels": null,
"ParentId": "",
"RepoDigests": [
"ubuntu@sha256:bc2f7250f69267c9c6b66d7b6a81a54d3878bb85f1ebb5f951c896d13e6ba537"
],
"RepoTags": [
"ubuntu:latest"
],
"SharedSize": -1,
"Size": 72872854,
"VirtualSize": 72872854
},
{
"Containers": -1,
"Created": 1599355955,
"Id": "sha256:f1959a19ad135ca9fda80b99331e343cf2166d32a7db22782c5ec77c97ca4c34",
"Labels": {
"org.label-schema.build-date": "20200809",
"org.label-schema.license": "GPLv2",
"org.label-schema.name": "CentOS Base Image",
"org.label-schema.schema-version": "1.0",
"org.label-schema.vendor": "CentOS"
},
"ParentId": "sha256:0d120b6ccaa8c5e149176798b3501d4dd1885f961922497cd0abef155c869566",
"RepoDigests": null,
"RepoTags": [
"curldocker:latest"
],
"SharedSize": -1,
"Size": 215055481,
"VirtualSize": 215055481
},
{
"Containers": -1,
"Created": 1597083609,
"Id": "sha256:7e6257c9f8d8d4cdff5e155f196d67150b871bbe8c02761026f803a704acb3e9",
"Labels": {
"org.label-schema.build-date": "20200809",
"org.label-schema.license": "GPLv2",
"org.label-schema.name": "CentOS Base Image",
"org.label-schema.schema-version": "1.0",
"org.label-schema.vendor": "CentOS",
"org.opencontainers.image.created": "2020-08-09 00:00:00+01:00",
"org.opencontainers.image.licenses": "GPL-2.0-only",
"org.opencontainers.image.title": "CentOS Base Image",
"org.opencontainers.image.vendor": "CentOS"
},
"ParentId": "",
"RepoDigests": [
"centos@sha256:19a79828ca2e505eaee0ff38c2f3fd9901f4826737295157cc5212b7a372cd2b"
],
"RepoTags": [
"centos:centos7"
],
"SharedSize": -1,
"Size": 203325730,
"VirtualSize": 203325730
},
{
"Containers": -1,
"Created": 1597083589,
"Id": "sha256:0d120b6ccaa8c5e149176798b3501d4dd1885f961922497cd0abef155c869566",
"Labels": {
"org.label-schema.build-date": "20200809",
"org.label-schema.license": "GPLv2",
"org.label-schema.name": "CentOS Base Image",
"org.label-schema.schema-version": "1.0",
"org.label-schema.vendor": "CentOS"
},
"ParentId": "",
"RepoDigests": [
"centos@sha256:76d24f3ba3317fa945743bb3746fbaf3a0b752f10b10376960de01da70685fbd"
],
"RepoTags": [
"centos:latest"
],
"SharedSize": -1,
"Size": 215055481,
"VirtualSize": 215055481
},
{
"Containers": -1,
"Created": 1596655386,
"Id": "sha256:2ae23eb477aa82782438e429f22e551c1a093e2aebb804fb3d1463dd510c16cb",
"Labels": null,
"ParentId": "",
"RepoDigests": [
"tomcat@sha256:9de2415ccf10fe8e5906e4b72eda21649a7a1d0b88e9111f8409062599f3728e"
],
"RepoTags": [
"tomcat:latest"
],
"SharedSize": -1,
"Size": 647423822,
"VirtualSize": 647423822
},
{
"Containers": -1,
"Created": 1590787186,
"Id": "sha256:a24bb4013296f61e89ba57005a7b3e52274d8edd3ae2077d04395f806b63d83e",
"Labels": null,
"ParentId": "",
"RepoDigests": [
"alpine@sha256:185518070891758909c9f839cf4ca393ee977ac378609f700f60a771a2dfe321"
],
"RepoTags": [
"alpine:latest"
],
"SharedSize": -1,
"Size": 5570176,
"VirtualSize": 5570176
},
{
"Containers": -1,
"Created": 1579361364,
"Id": "sha256:dd7a37fe7c1e6f3b9bcd1c51cad0a54fde3f393ac458af3b009b2032978f599d",
"Labels": {
"MAINTAINER": "[email protected]",
"org.label-schema.build-date": "20190927",
"org.label-schema.license": "GPLv2",
"org.label-schema.name": "CentOS Base Image",
"org.label-schema.schema-version": "1.0",
"org.label-schema.vendor": "CentOS"
},
"ParentId": "",
"RepoDigests": [
"nigelpoulton/pluralsight-docker-ci@sha256:61bc64850a5f2bfbc65967cc33feaae8a77c8b49379c55aaf05bb02dcee41451"
],
"RepoTags": [
"nigelpoulton/pluralsight-docker-ci:latest"
],
"SharedSize": -1,
"Size": 604123236,
"VirtualSize": 604123236
},
{
"Containers": -1,
"Created": 1557538337,
"Id": "sha256:a3562aa0b991a80cfe8172847c8be6dbf6e46340b759c2b782f8b8be45342717",
"Labels": null,
"ParentId": "",
"RepoDigests": [
"openjdk@sha256:94792824df2df33402f201713f932b58cb9de94a0cd524164a0f2283343547b3"
],
"RepoTags": [
"openjdk:8-jdk-alpine"
],
"SharedSize": -1,
"Size": 104796897,
"VirtualSize": 104796897
},
{
"Containers": -1,
"Created": 1482135553,
"Id": "sha256:688353a31fdee02a966d1f83e9210f77b5a63baaaacbedb81ca35f6231cfeb6c",
"Labels": {
"build-date": "20161214",
"license": "GPLv2",
"name": "CentOS Base Image",
"vendor": "CentOS"
},
"ParentId": "",
"RepoDigests": [
"ansible/centos7-ansible@sha256:39eff7d56b96530d014083cd343f7314c23acbd1ecf37eb75a71a2f6584d0b02"
],
"RepoTags": [
"ansible/centos7-ansible:latest"
],
"SharedSize": -1,
"Size": 447160864,
"VirtualSize": 447160864
}
]
[root@localhost ~]# docker run -it centos /bin/bash
[root@c4787c1799e5 /]# [root@localhost ~]#
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c4787c1799e5 centos "/bin/bash" About a minute ago Up About a minute keen_bose
# /containers/json接口可以获取正在运行中的容器列表
[root@localhost ~]# curl http://localhost:2375/containers/json | python -mjson.tool
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 982 100 982 0 0 134k 0 --:--:-- --:--:-- --:--:-- 159k
[
{
"Command": "/bin/bash",
"Created": 1605924653,
"HostConfig": {
"NetworkMode": "default"
},
"Id": "c4787c1799e56537df90c5fcd02a5f40ac13a005162547016d8f68190a50b51b",
"Image": "centos",
"ImageID": "sha256:0d120b6ccaa8c5e149176798b3501d4dd1885f961922497cd0abef155c869566",
"Labels": {
"org.label-schema.build-date": "20200809",
"org.label-schema.license": "GPLv2",
"org.label-schema.name": "CentOS Base Image",
"org.label-schema.schema-version": "1.0",
"org.label-schema.vendor": "CentOS"
},
"Mounts": [],
"Names": [
"/keen_bose"
],
"NetworkSettings": {
"Networks": {
"bridge": {
"Aliases": null,
"DriverOpts": null,
"EndpointID": "08cd104bb749460f82649c17ce4ab2264e773f67c1b433e48d5070f27653a7c6",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAMConfig": null,
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"Links": null,
"MacAddress": "02:42:ac:11:00:02",
"NetworkID": "0bd6a3015a3c04e711db25a7268c57249b00b2f6e8bd0157a6048b63a958a45c"
}
}
},
"Ports": [],
"State": "running",
"Status": "Up 2 minutes"
}
]
# 监控容器。使用容器id获取该容器底层信息
[root@localhost ~]# curl http://localhost:2375/containers/c4787c1799e5/json | python -mjson.tool
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 4323 0 4323 0 0 689k 0 --:--:-- --:--:-- --:--:-- 844k
{
"AppArmorProfile": "",
"Args": [],
"Config": {
"AttachStderr": true,
"AttachStdin": true,
"AttachStdout": true,
"Cmd": [
"/bin/bash"
],
"Domainname": "",
"Entrypoint": null,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Hostname": "c4787c1799e5",
"Image": "centos",
"Labels": {
"org.label-schema.build-date": "20200809",
"org.label-schema.license": "GPLv2",
"org.label-schema.name": "CentOS Base Image",
"org.label-schema.schema-version": "1.0",
"org.label-schema.vendor": "CentOS"
},
"OnBuild": null,
"OpenStdin": true,
"StdinOnce": true,
"Tty": true,
"User": "",
"Volumes": null,
"WorkingDir": ""
},
"Created": "2020-11-21T02:10:53.708594013Z",
"Driver": "devicemapper",
"ExecIDs": null,
"GraphDriver": {
"Data": {
"DeviceId": "144",
"DeviceName": "docker-8:3-50796903-44e041ad2ddde3ca042ee0dbadb0b84efa04f92bba8c60830c53050bcd2bed4f",
"DeviceSize": "10737418240"
},
"Name": "devicemapper"
},
"HostConfig": {
"AutoRemove": false,
"Binds": null,
"BlkioDeviceReadBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceWriteIOps": null,
"BlkioWeight": 0,
"BlkioWeightDevice": [],
"CapAdd": null,
"CapDrop": null,
"Capabilities": null,
"Cgroup": "",
"CgroupParent": "",
"ConsoleSize": [
0,
0
],
"ContainerIDFile": "",
"CpuCount": 0,
"CpuPercent": 0,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpuShares": 0,
"CpusetCpus": "",
"CpusetMems": "",
"DeviceCgroupRules": null,
"DeviceRequests": null,
"Devices": [],
"Dns": [],
"DnsOptions": [],
"DnsSearch": [],
"ExtraHosts": null,
"GroupAdd": null,
"IOMaximumBandwidth": 0,
"IOMaximumIOps": 0,
"IpcMode": "private",
"Isolation": "",
"KernelMemory": 0,
"KernelMemoryTCP": 0,
"Links": null,
"LogConfig": {
"Config": {},
"Type": "json-file"
},
"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"
],
"Memory": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": null,
"NanoCpus": 0,
"NetworkMode": "default",
"OomKillDisable": false,
"OomScoreAdj": 0,
"PidMode": "",
"PidsLimit": null,
"PortBindings": {},
"Privileged": false,
"PublishAllPorts": false,
"ReadonlyPaths": [
"/proc/bus",
"/proc/fs",
"/proc/irq",
"/proc/sys",
"/proc/sysrq-trigger"
],
"ReadonlyRootfs": false,
"RestartPolicy": {
"MaximumRetryCount": 0,
"Name": "no"
},
"Runtime": "runc",
"SecurityOpt": null,
"ShmSize": 67108864,
"UTSMode": "",
"Ulimits": null,
"UsernsMode": "",
"VolumeDriver": "",
"VolumesFrom": null
},
"HostnamePath": "/var/lib/docker/containers/c4787c1799e56537df90c5fcd02a5f40ac13a005162547016d8f68190a50b51b/hostname",
"HostsPath": "/var/lib/docker/containers/c4787c1799e56537df90c5fcd02a5f40ac13a005162547016d8f68190a50b51b/hosts",
"Id": "c4787c1799e56537df90c5fcd02a5f40ac13a005162547016d8f68190a50b51b",
"Image": "sha256:0d120b6ccaa8c5e149176798b3501d4dd1885f961922497cd0abef155c869566",
"LogPath": "/var/lib/docker/containers/c4787c1799e56537df90c5fcd02a5f40ac13a005162547016d8f68190a50b51b/c4787c1799e56537df90c5fcd02a5f40ac13a005162547016d8f68190a50b51b-json.log",
"MountLabel": "",
"Mounts": [],
"Name": "/keen_bose",
"NetworkSettings": {
"Bridge": "",
"EndpointID": "08cd104bb749460f82649c17ce4ab2264e773f67c1b433e48d5070f27653a7c6",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"HairpinMode": false,
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:02",
"Networks": {
"bridge": {
"Aliases": null,
"DriverOpts": null,
"EndpointID": "08cd104bb749460f82649c17ce4ab2264e773f67c1b433e48d5070f27653a7c6",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAMConfig": null,
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"Links": null,
"MacAddress": "02:42:ac:11:00:02",
"NetworkID": "0bd6a3015a3c04e711db25a7268c57249b00b2f6e8bd0157a6048b63a958a45c"
}
},
"Ports": {},
"SandboxID": "d7a03ee69f7fd5b26ccb25c9248dbfdad7ac9163f798a5ac270da8d0f8e081a5",
"SandboxKey": "/var/run/docker/netns/d7a03ee69f7f",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null
},
"Path": "/bin/bash",
"Platform": "linux",
"ProcessLabel": "",
"ResolvConfPath": "/var/lib/docker/containers/c4787c1799e56537df90c5fcd02a5f40ac13a005162547016d8f68190a50b51b/resolv.conf",
"RestartCount": 0,
"State": {
"Dead": false,
"Error": "",
"ExitCode": 0,
"FinishedAt": "0001-01-01T00:00:00Z",
"OOMKilled": false,
"Paused": false,
"Pid": 5573,
"Restarting": false,
"Running": true,
"StartedAt": "2020-11-21T02:10:54.31313752Z",
"Status": "running"
}
}
[root@localhost ~]#