Once you create your Dockerfile for your image, you need to build it. \u00a0You do that by running the following command from the directory that contains the Dockerfile.<\/p>\n
docker build -t <image_name> .<\/pre>\nChange “image_name” to be the name you want to give this image. \u00a0If you need to update your Dockerfile, you can simply rerun this command again to update your image.<\/p>\n
Creating a Docker Container<\/h2>\n
With your image created your ready to start it. \u00a0Use this command to create the container:<\/p>\n
docker run -t -i <image_name><\/pre>\nYou can use this command multiple times, to create multiple instances\u00a0of different or the same images.<\/p>\n
Mounting a Host Directory in a Container<\/h2>\n
Docker Containers do not lend themselves to NFS as easily as one would like. However you can mount directories from the host system into your container. \u00a0When starting your image add the follow:<\/p>\n
docker run -t -i -v \/host\/src\/dir:\/container\/dest\/dir <image_name><\/pre>\nYou may add as many “-v <host dir>:<container dir>” as needed. \u00a0This will map “\/host\/src\/dir” to the directory “\/container\/dest\/dir” inside the container.<\/p>\n
Naming a Docker Image<\/h2>\n
You may want an easier way to pick the container you want to Inspect or review. \u00a0You can give your containers a name, instead of having to use their Container ID. \u00a0To do this use the following:<\/p>\n
docker run -t -i -v \/host\/src\/dir:\/container\/dest\/dir --name <Container Name> <image_name><\/pre>\nYou can then use <Container Name> in replacement of the Container ID.<\/p>\n
Running Docker Image in the Background<\/h2>\n
You probably do not want ot have to waste a session running docker int he foreground. \u00a0Instead run the container in the back ground add “-d” to the command line.<\/p>\n
docker run -t -i -d -v \/host\/src\/dir:\/container\/dest\/dir --name <Container Name> <image_name><\/pre>\nViewing the Running Containers<\/h2>\n
You have started multiple containers in Docker, and you need to know what is running.<\/p>\n
docker ps<\/pre>\nThis will give you a listing of all running images:<\/p>\n
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES\r\ndd27c3df3d75 docker-image \"\/usr\/bin\/supervisord\" 39 seconds ago Up 39 seconds 22\/tcp slave1\r\n<\/pre>\nViewing an Container\u00a0Details<\/h2>\n
Sometimes you want to get specific information about an image. \u00a0This could be many things, the IP address is very common. \u00a0Use the Container ID from the “docker ps” command for the image you need additional information on, in the following command:<\/p>\n
docker inspect <Container ID><\/pre>\nThis will produce the following information:<\/p>\n
[\r\n {\r\n \"Id\": \"dd27c3df3d758d52fbbf5779e11bff670d8b25bd15975371f8314447d2f82301\",\r\n \"Created\": \"2016-04-26T20:29:03.197112472Z\",\r\n \"Path\": \"\/usr\/bin\/supervisord\",\r\n \"Args\": [],\r\n \"State\": {\r\n \"Status\": \"running\",\r\n \"Running\": true,\r\n \"Paused\": false,\r\n \"Restarting\": false,\r\n \"OOMKilled\": false,\r\n \"Dead\": false,\r\n \"Pid\": 3404,\r\n \"ExitCode\": 0,\r\n \"Error\": \"\",\r\n \"StartedAt\": \"2016-04-26T20:29:03.766274435Z\",\r\n \"FinishedAt\": \"0001-01-01T00:00:00Z\"\r\n },\r\n \"Image\": \"sha256:6a3c4a49d51c50589b9d8e1ce3e07c23cb9dbe05bcf7fbb96b8f2a87593f2332\",\r\n \"ResolvConfPath\": \"\/var\/lib\/docker\/containers\/dd27c3df3d758d52fbbf5779e11bff670d8b25bd15975371f8314447d2f82301\/resolv.conf\",\r\n \"HostnamePath\": \"\/var\/lib\/docker\/containers\/dd27c3df3d758d52fbbf5779e11bff670d8b25bd15975371f8314447d2f82301\/hostname\",\r\n \"HostsPath\": \"\/var\/lib\/docker\/containers\/dd27c3df3d758d52fbbf5779e11bff670d8b25bd15975371f8314447d2f82301\/hosts\",\r\n \"LogPath\": \"\/var\/lib\/docker\/containers\/dd27c3df3d758d52fbbf5779e11bff670d8b25bd15975371f8314447d2f82301\/dd27c3df3d758d52fbbf5779e11bff670d8b25bd15975371f8314447d2f82301-json.log\",\r\n \"Name\": \"\/slave1\",\r\n \"RestartCount\": 0,\r\n \"Driver\": \"devicemapper\",\r\n \"MountLabel\": \"\",\r\n \"ProcessLabel\": \"\",\r\n \"AppArmorProfile\": \"\",\r\n \"ExecIDs\": null,\r\n \"HostConfig\": {\r\n \"Binds\": [\r\n \"\/mnt\/nas:\/mnt\/nas\"\r\n ],\r\n \"ContainerIDFile\": \"\",\r\n \"LogConfig\": {\r\n \"Type\": \"json-file\",\r\n \"Config\": {}\r\n },\r\n \"NetworkMode\": \"default\",\r\n \"PortBindings\": {},\r\n \"RestartPolicy\": {\r\n \"Name\": \"no\",\r\n \"MaximumRetryCount\": 0\r\n },\r\n \"AutoRemove\": false,\r\n \"VolumeDriver\": \"\",\r\n \"VolumesFrom\": null,\r\n \"CapAdd\": null,\r\n \"CapDrop\": null,\r\n \"Dns\": [],\r\n \"DnsOptions\": [],\r\n \"DnsSearch\": [],\r\n \"ExtraHosts\": null,\r\n \"GroupAdd\": null,\r\n \"IpcMode\": \"\",\r\n \"Cgroup\": \"\",\r\n \"Links\": null,\r\n \"OomScoreAdj\": 0,\r\n \"PidMode\": \"\",\r\n \"Privileged\": false,\r\n \"PublishAllPorts\": false,\r\n \"ReadonlyRootfs\": false,\r\n \"SecurityOpt\": null,\r\n \"StorageOpt\": null,\r\n \"UTSMode\": \"\",\r\n \"UsernsMode\": \"\",\r\n \"ShmSize\": 67108864,\r\n \"ConsoleSize\": [\r\n 0,\r\n 0\r\n ],\r\n \"Isolation\": \"\",\r\n \"CpuShares\": 0,\r\n \"Memory\": 0,\r\n \"CgroupParent\": \"\",\r\n \"BlkioWeight\": 0,\r\n \"BlkioWeightDevice\": null,\r\n \"BlkioDeviceReadBps\": null,\r\n \"BlkioDeviceWriteBps\": null,\r\n \"BlkioDeviceReadIOps\": null,\r\n \"BlkioDeviceWriteIOps\": null,\r\n \"CpuPeriod\": 0,\r\n \"CpuQuota\": 0,\r\n \"CpusetCpus\": \"\",\r\n \"CpusetMems\": \"\",\r\n \"Devices\": [],\r\n \"DiskQuota\": 0,\r\n \"KernelMemory\": 0,\r\n \"MemoryReservation\": 0,\r\n \"MemorySwap\": 0,\r\n \"MemorySwappiness\": -1,\r\n \"OomKillDisable\": false,\r\n \"PidsLimit\": 0,\r\n \"Ulimits\": null,\r\n \"CpuCount\": 0,\r\n \"CpuPercent\": 0,\r\n \"BlkioIOps\": 0,\r\n \"BlkioBps\": 0,\r\n \"SandboxSize\": 0\r\n },\r\n \"GraphDriver\": {\r\n \"Name\": \"devicemapper\",\r\n \"Data\": {\r\n \"DeviceId\": \"173\",\r\n \"DeviceName\": \"docker-253:0-203845648-9730e96e91695d973493214b8fe0d3eb14b0d30d91b9971aa1bed83f457726ba\",\r\n \"DeviceSize\": \"10737418240\"\r\n }\r\n },\r\n \"Mounts\": [\r\n {\r\n \"Source\": \"\/mnt\/nas\",\r\n \"Destination\": \"\/mnt\/nas\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"rprivate\"\r\n }\r\n ],\r\n \"Config\": {\r\n \"Hostname\": \"dd27c3df3d75\",\r\n \"Domainname\": \"\",\r\n \"User\": \"\",\r\n \"AttachStdin\": true,\r\n \"AttachStdout\": true,\r\n \"AttachStderr\": true,\r\n \"ExposedPorts\": {\r\n \"22\/tcp\": {}\r\n },\r\n \"Tty\": true,\r\n \"OpenStdin\": true,\r\n \"StdinOnce\": true,\r\n \"Env\": [\r\n \"PATH=\/usr\/local\/sbin:\/usr\/local\/bin:\/usr\/sbin:\/usr\/bin:\/sbin:\/bin\"\r\n ],\r\n \"Cmd\": [\r\n \"\/usr\/bin\/supervisord\"\r\n ],\r\n \"Image\": \"docker-image\",\r\n \"Volumes\": null,\r\n \"WorkingDir\": \"\",\r\n \"Entrypoint\": null,\r\n \"OnBuild\": null,\r\n \"Labels\": {}\r\n },\r\n \"NetworkSettings\": {\r\n \"Bridge\": \"\",\r\n \"SandboxID\": \"9e347e035c2a0f7e7516404f4acc90a6d59ae40e6829efc4a4b075f88228361a\",\r\n \"HairpinMode\": false,\r\n \"LinkLocalIPv6Address\": \"\",\r\n \"LinkLocalIPv6PrefixLen\": 0,\r\n \"Ports\": {\r\n \"22\/tcp\": null\r\n },\r\n \"SandboxKey\": \"\/var\/run\/docker\/netns\/9e347e035c2a\",\r\n \"SecondaryIPAddresses\": null,\r\n \"SecondaryIPv6Addresses\": null,\r\n \"EndpointID\": \"a1b438922cb1078dba7f124c1cdd18461704e0898c8d6f836c850d36efc06455\",\r\n \"Gateway\": \"172.17.0.1\",\r\n \"GlobalIPv6Address\": \"\",\r\n \"GlobalIPv6PrefixLen\": 0,\r\n \"IPAddress\": \"172.17.0.2\",\r\n \"IPPrefixLen\": 16,\r\n \"IPv6Gateway\": \"\",\r\n \"MacAddress\": \"02:42:ac:11:00:02\",\r\n \"Networks\": {\r\n \"bridge\": {\r\n \"IPAMConfig\": null,\r\n \"Links\": null,\r\n \"Aliases\": null,\r\n \"NetworkID\": \"92e12e2e71d2ca523e274186af0842b44dc55053baa6d34f6e356e29a5b3075a\",\r\n \"EndpointID\": \"a1b438922cb1078dba7f124c1cdd18461704e0898c8d6f836c850d36efc06455\",\r\n \"Gateway\": \"172.17.0.1\",\r\n \"IPAddress\": \"172.17.0.2\",\r\n \"IPPrefixLen\": 16,\r\n \"IPv6Gateway\": \"\",\r\n \"GlobalIPv6Address\": \"\",\r\n \"GlobalIPv6PrefixLen\": 0,\r\n \"MacAddress\": \"02:42:ac:11:00:02\"\r\n }\r\n }\r\n }\r\n }\r\n]\r\n<\/pre>\nStopping a Docker Container<\/h2>\n
At some point your probably going to need to stop your Docker Container. \u00a0You can do this with the following command:<\/p>\n
docker stop <Container ID><\/pre>\nStarting a Docker Container<\/h2>\n
So you stopped a container, and now you need to restart it. \u00a0Use this simple command:<\/p>\n
docker start <Conatiner ID><\/pre>\nRemoving a Docker Container<\/h2>\n
Again your going to want to remove containers you have created at some point. \u00a0To do this use the following command:<\/p>\n
docker rm <Container ID>doc<\/pre>\nAdditional information Check here:<\/h2>\n