create — Create a discovery token The create command uses Docker Hub’s hosted discovery backend to create a unique discovery token for your cluster. For example: $ docker run --rm swarm create 86222732d62b6868d441d430aee4f055 Later, when you use manage or join to create Swarm managers and nodes, you use the discovery token in the <discovery> argument (e.g., token://86222732d62b6868d441d430aee4f055). The discovery backend registers each new Swarm manager and node that uses the token as a

Work with network commands This article provides examples of the network subcommands you can use to interact with Docker networks and the containers in them. The commands are available through the Docker Engine CLI. These commands are: docker network create docker network connect docker network ls docker network rm docker network disconnect docker network inspect While not required, it is a good idea to read Understanding Docker network before trying the examples in this section. The examples

openSUSE and SUSE Linux Enterprise This page provides instructions for installing and configuring the latest Docker Engine software on openSUSE and SUSE systems. Note: You can also find bleeding edge Docker versions inside of the repositories maintained by the Virtualization:containers project on the Open Build Service. This project delivers also other packages that are related with the Docker ecosystem (for example, Docker Compose). Prerequisites You must be running a 64 bit architecture. op

Installation from binaries This instruction set is meant for hackers who want to try out Docker on a variety of environments. Before following these directions, you should really check if a packaged version of Docker is already available for your distribution. We have packages for many distributions, and more keep showing up all the time! Check runtime dependencies To run properly, docker needs the following software to be installed at runtime: iptables version 1.4 or later Git version 1.7 or l

Driver options and operating system defaults When Docker Machine provisions containers on local network provider or with a remote, cloud provider such as Amazon Web Services, you must define both the driver for your provider and a base operating system. There are over 10 supported drivers and a generic driver for adding machines for other providers. Each driver has a set of options specific to that provider. These options provide information to machine such as connection credentials, ports, and

Google Cloud Logging driver The Google Cloud Logging driver sends container logs to Google Cloud Logging. Usage You can configure the default logging driver by passing the --log-driver option to the Docker daemon: docker daemon --log-driver=gcplogs You can set the logging driver for a specific container by using the --log-driver option to docker run: docker run --log-driver=gcplogs ... This log driver does not implement a reader so it is incompatible with docker logs. If Docker detects that i

Docker Remote API v1.22 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

Amazon Web Services (AWS) EC2 example Follow along with this example to create a Dockerized Amazon Web Services (AWS) EC2 instance. Step 1. Sign up for AWS and configure credentials If you are not already an AWS user, sign up for AWS to create an account and get root access to EC2 cloud computers. If you have an Amazon account, you can use it as your root user account. Create an IAM (Identity and Access Management) administrator user, an admin group, and a key pair associated with a region

Docker and Btrfs in practice Btrfs is a next generation copy-on-write filesystem that supports many advanced storage technologies that make it a good fit for Docker. Btrfs is included in the mainline Linux kernel and its on-disk-format is now considered stable. However, many of its features are still under heavy development and users should consider it a fast-moving target. Docker’s btrfs storage driver leverages many Btrfs features for image and container management. Among these features are t

Dockerizing a CouchDB service Note: - If you don’t like sudo then see Giving non-root access Here’s an example of using data volumes to share the same data between two CouchDB containers. This could be used for hot upgrades, testing different versions of CouchDB on the same data, etc. Create first database Note that we’re marking /var/lib/couchdb as a data volume. $ COUCH1=$(docker run -d -p 5984 -v /var/lib/couchdb shykes/couchdb:2013-05-03) Add data to the first database We’re assuming you