IPv6 with Docker The information in this section explains IPv6 with the Docker default bridge. This is a bridge network named bridge created automatically when you install Docker. As we are running out of IPv4 addresses the IETF has standardized an IPv4 successor, Internet Protocol Version 6 , in RFC 2460. Both protocols, IPv4 and IPv6, reside on layer 3 of the OSI model. How IPv6 works on Docker By default, the Docker server configures the container network for IPv4 only. You can enable IPv4/I

OpenStack Create machines on OpenStack Mandatory: --openstack-auth-url: Keystone service base URL. --openstack-flavor-id or --openstack-flavor-name: Identify the flavor that will be used for the machine. --openstack-image-id or --openstack-image-name: Identify the image that will be used for the machine. $ docker-machine create --driver openstack vm Options: --openstack-active-timeout: The timeout in seconds until the OpenStack instance must be active. --openstack-availability-zone: The

env Set environment variables to dictate that docker should run a command against a particular machine. $ docker-machine env --help Usage: docker-machine env [OPTIONS] [arg...] Display the commands to set up the environment for the Docker client Description: Argument is a machine name. Options: --swarm Display the Swarm config instead of the Docker daemon --shell Force environment to be configured for a specified shell: [fish, cmd, powershell], default is sh/bash --unset, -u

diff Usage: docker diff [OPTIONS] CONTAINER Inspect changes on a container's filesystem --help Print usage List the changed files and directories in a container᾿s filesystem There are 3 events that are listed in the diff: A - Add D - Delete C - Change For example: $ docker diff 7bb0e258aefe C /dev A /dev/kmsg C /etc A /etc/mtab A /go A /go/src A /go/src/github.com A /go/src/github.com/docker A /go/src/github.com/docker/docker A /go/src/github.com/docker/docker/.git ....

Debian Docker is supported on the following versions of Debian: Debian testing stretch (64-bit) Debian 8.0 Jessie (64-bit) Debian 7.7 Wheezy (64-bit) (backports required) Note: If you previously installed Docker using APT, make sure you update your APT sources to the new APT repository. Prerequisites Docker requires a 64-bit installation regardless of your Debian version. Additionally, your kernel must be 3.10 at minimum. The latest 3.10 minor version or a newer maintained version are also

export Usage: docker export [OPTIONS] CONTAINER Export the contents of a container's filesystem as a tar archive --help Print usage -o, --output="" Write to a file, instead of STDOUT The docker export command does not export the contents of volumes associated with the container. If a volume is mounted on top of an existing directory in the container, docker export will export the contents of the underlying directory, not the contents of the volume. Refer to Backup, restore

Docker Remote API v1.19 1. Brief introduction The Remote API has replaced rcli. The daemon listens on unix:///var/run/docker.sock but you can Bind Docker to another host/port or a Unix socket. The API tends to be REST. However, for some complex commands, like attach or pull, the HTTP connection is hijacked to transport stdout, stdin and stderr. When the client API version is newer than the daemon’s, these calls return an HTTP 400 Bad Request error message. 2. Endpoints 2.1 Containers List con

update Usage: docker update [OPTIONS] CONTAINER [CONTAINER...] Update configuration of one or more containers --help=false Print usage --blkio-weight=0 Block IO (relative weight), between 10 and 1000 --cpu-shares=0 CPU shares (relative weight) --cpu-period=0 Limit the CPU CFS (Completely Fair Scheduler) period --cpu-quota=0 Limit the CPU CFS (Completely Fair Scheduler) quota --cpuset-cpus="" CPUs in which to al

pause Usage: docker pause [OPTIONS] CONTAINER [CONTAINER...] Pause all processes within a container --help Print usage The docker pause command uses the cgroups freezer to suspend all processes in a container. Traditionally, when suspending a process the SIGSTOP signal is used, which is observable by the process being suspended. With the cgroups freezer the process is unaware, and unable to capture, that it is being suspended, and subsequently resumed. See the cgroups freezer docu

restart Usage: docker-machine restart [arg...] Restart a machine Description: Argument(s) are one or more machine names. Restart a machine. Oftentimes this is equivalent to docker-machine stop; docker-machine start. But some cloud driver try to implement a clever restart which keeps the same ip address. $ docker-machine restart dev Waiting for VM to start...