pull Usage: docker pull [OPTIONS] NAME[:TAG] | [REGISTRY_HOST[:REGISTRY_PORT]/]NAME[:TAG] Pull an image or a repository from the registry -a, --all-tags Download all tagged images in the repository --disable-content-trust=true Skip image verification --help Print usage Most of your images will be created on top of a base image from the Docker Hub registry. Docker Hub contains many pre-built images that you can pull and try without needing to defin

Run a simple application In the “Hello world in a container“ you launched your first containers using the docker run command. You ran an interactive container that ran in the foreground. You also ran a detached container that ran in the background. In the process you learned about several Docker commands: docker ps - Lists containers. docker logs - Shows us the standard output of a container. docker stop - Stops running containers. Learn about the Docker client If you didn’t realize it yet

Deprecated Engine Features The following list of features are deprecated in Engine. -e and --email flags on docker login Deprecated In Release: v1.11 Target For Removal In Release: v1.13 The docker login command is removing the ability to automatically register for an account with the target registry if the given username doesn’t exist. Due to this change, the email flag is no longer required, and will be deprecated. Separator (:) of --security-opt flag on docker run Deprecated In Release: v

help Usage: docker-machine help [arg...] Shows a list of commands or help for one command Usage: docker-machine help subcommand For example: $ docker-machine help config Usage: docker-machine config [OPTIONS] [arg...] Print the connection config for machine Description: Argument is a machine name. Options: --swarm Display the Swarm config instead of the Docker daemon

Microsoft Azure You will need an Azure Subscription to use this Docker Machine driver. Sign up for a free trial. NOTE: This documentation is for the new version of the Azure driver, which started shipping with v0.7.0. This driver is not backwards-compatible with the old Azure driver. If you want to continue managing your existing Azure machines, please download and use machine versions prior to v0.7.0. Authentication The first time you try to create a machine, Azure driver will ask you to aut

Digital Ocean Create Docker machines on Digital Ocean. You need to create a personal access token under “Apps & API” in the Digital Ocean Control Panel and pass that to docker-machine create with the --digitalocean-access-token option. $ docker-machine create --driver digitalocean --digitalocean-access-token=aa9399a2175a93b17b1c86c807e08d3fc4b79876545432a629602f61cf6ccd6b test-this Options: --digitalocean-access-token: required Your personal access token for the Digital Ocean API. --digi

upgrade Upgrade a machine to the latest version of Docker. How this upgrade happens depends on the underlying distribution used on the created instance. For example, if the machine uses Ubuntu as the underlying operating system, it will run a command similar to sudo apt-get upgrade docker-engine, because Machine expects Ubuntu machines it manages to use this package. As another example, if the machine uses boot2docker for its OS, this command will download the latest boot2docker ISO and replace

Overview of Docker Compose Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a Compose file to configure your application’s services. Then, using a single command, you create and start all the services from your configuration. To learn more about all the features of Compose see the list of features. Compose is great for development, testing, and staging environments, as well as CI workflows. You can learn more about each case in Common Use Cas

Environment file Compose supports declaring default environment variables in an environment file named .env placed in the folder docker-compose command is executed from (current working directory). Compose expects each line in an env file to be in VAR=VAL format. Lines beginning with # (i.e. comments) are ignored, as are blank lines. Note: Values present in the environment at runtime will always override those defined inside the .env file. Similarly, values passed via command-line arguments ta

Docker Swarm strategies The Docker Swarm scheduler features multiple strategies for ranking nodes. The strategy you choose determines how Swarm computes ranking. When you run a new container, Swarm chooses to place it on the node with the highest computed ranking for your chosen strategy. To choose a ranking strategy, pass the --strategy flag and a strategy value to the swarm manage command. Swarm currently supports these values: spread binpack random The spread and binpack strategies compute