Configuring and running Docker on various distributions After successfully installing Docker, the docker daemon runs with its default configuration. In a production environment, system administrators typically configure the docker daemon to start and stop according to an organization’s requirements. In most cases, the system administrator configures a process manager such as SysVinit, Upstart, or systemd to manage the docker daemon’s start and stop. Running the docker daemon directly The docker

Configure Docker Swarm for TLS In this procedure you create a two-node Swarm cluster, a Docker Engine CLI, a Swarm Manager, and a Certificate Authority as shown below. All the Docker Engine hosts (client, swarm, node1, and node2) have a copy of the CA’s certificate as well as their own key-pair signed by the CA. You will complete the following steps in this procedure: Step 1: Set up the prerequisites Step 2: Create a Certificate Authority (CA) server Step 3: Create and sign keys Step 4: Instal

Embedded DNS server in user-defined networks The information in this section covers the embedded DNS server operation for containers in user-defined networks. DNS lookup for containers connected to user-defined networks works differently compared to the containers connected to default bridge network. Note: In order to maintain backward compatibility, the DNS configuration in default bridge network is retained with no behavioral change. Please refer to the DNS in default bridge network for more

Configure container DNS The information in this section explains configuring container DNS within the Docker default bridge. This is a bridge network named bridge created automatically when you install Docker. Note: The Docker networks feature allows you to create user-defined networks in addition to the default bridge network. Please refer to the Docker Embedded DNS section for more information on DNS configurations in user-defined networks. How can Docker supply each container with a hostna

Compose file reference The Compose file is a YAML file defining services, networks and volumes. The default path for a Compose file is ./docker-compose.yml. A service definition contains configuration which will be applied to each container started for that service, much like passing command-line parameters to docker run. Likewise, network and volume definitions are analogous to docker network create and docker volume create. As with docker run, options specified in the Dockerfile (e.g., CMD, E

Command-line Completion Docker Machine comes with command completion for the bash shell. Installing Command Completion Bash Make sure bash completion is installed. If you use a current Linux in a non-minimal installation, bash completion should be available. On a Mac, install with brew install bash-completion Place the completion scripts in /etc/bash_completion.d/ (`brew --prefix`/etc/bash_completion.d/ on a Mac), using e.g. files=(docker-machine docker-machine-wrapper docker-machine-prompt) fo

Command-line Completion Compose comes with command completion for the bash and zsh shell. Installing Command Completion Bash Make sure bash completion is installed. If you use a current Linux in a non-minimal installation, bash completion should be available. On a Mac, install with brew install bash-completion Place the completion script in /etc/bash_completion.d/ (/usr/local/etc/bash_completion.d/ on a Mac), using e.g. curl -L https://raw.githubusercontent.com/docker/compose/$(docker-compose

Choose how to install You can install Docker Engine on any cloud platform that runs an operating system (OS) that Docker supports. This includes many flavors and versions of Linux, along with Mac and Windows. You have two options for installing: Manually install on the cloud (create cloud hosts, then install Docker Engine on them) Use Docker Machine to provision cloud hosts Manually install Docker Engine on a cloud host To install on a cloud provider: Create an account with the cloud provider

Build your own images Docker images are the basis of containers. Each time you’ve used docker run you told it which image you wanted. In the previous sections of the guide you used Docker images that already exist, for example the ubuntu image and the training/webapp image. You also discovered that Docker stores downloaded images on the Docker host. If an image isn’t already present on the host then it’ll be downloaded from a registry: by default the Docker Hub Registry. In this section you’re

Build your own bridge This section explains how to build your own bridge to replace the Docker default bridge. This is a bridge network named bridge created automatically when you install Docker. Note: The Docker networks feature allows you to create user-defined networks in addition to the default bridge network. You can set up your own bridge before starting Docker and use -b BRIDGE or --bridge=BRIDGE to tell Docker to use your bridge instead. If you already have Docker up and running with