github.com/noxiouz/docker@v0.7.3-0.20160629055221-3d231c78e8c5/docs/swarm/swarm-tutorial/create-swarm.md (about)

     1  <!--[metadata]>
     2  +++
     3  title = "Create a swarm"
     4  description = "Initialize the swarm"
     5  keywords = ["tutorial, cluster management, swarm mode"]
     6  advisory = "rc"
     7  [menu.main]
     8  identifier="initialize-swarm"
     9  parent="swarm-tutorial"
    10  weight=12
    11  +++
    12  <![end-metadata]-->
    13  
    14  # Create a swarm
    15  
    16  After you complete the [tutorial setup](index.md) steps, you're ready
    17  to create a swarm. Make sure the Docker Engine daemon is started on the host
    18  machines.
    19  
    20  1. Open a terminal and ssh into the machine where you want to run your manager
    21  node. For example, the tutorial uses a machine named `manager1`.
    22  
    23  2. Run the following command to create a new swarm:
    24  
    25      ```
    26      docker swarm init --listen-addr <MANAGER-IP>:<PORT>
    27      ```
    28  
    29      In the tutorial, the following command creates a swarm on the `manager1` machine:
    30  
    31      ```
    32      $ docker swarm init --listen-addr 192.168.99.100:2377
    33  
    34      Swarm initialized: current node (dxn1zf6l61qsb1josjja83ngz) is now a manager.
    35      ```
    36  
    37      The `--listen-addr` flag configures the manager node to listen on port
    38      `2377`. The other nodes in the swarm must be able to access the manager at
    39      the IP address.
    40  
    41  3. Run `docker info` to view the current state of the swarm:
    42  
    43       ```
    44       $ docker info
    45  
    46       Containers: 2
    47        Running: 0
    48        Paused: 0
    49        Stopped: 2
    50       ...snip...
    51       Swarm: active
    52        NodeID: dxn1zf6l61qsb1josjja83ngz
    53        IsManager: Yes
    54        Managers: 1
    55        Nodes: 1
    56        CACertHash: sha256:b7986d3baeff2f5664dfe350eec32e2383539ec1a802ba541c4eb829056b5f61
    57       ...snip...
    58       ```
    59  
    60  4. Run the `docker node ls` command to view information about nodes:
    61  
    62      ```
    63      $ docker node ls
    64  
    65      ID                           NAME      MEMBERSHIP  STATUS  AVAILABILITY  MANAGER STATUS  LEADER
    66      dxn1zf6l61qsb1josjja83ngz *  manager1  Accepted    Ready   Active        Reachable       Yes
    67  
    68      ```
    69  
    70       The `*` next to the node id, indicates that you're currently connected on
    71       this node.
    72  
    73       Docker Engine swarm mode automatically names the node for the machine host
    74       name. The tutorial covers other columns in later steps.
    75  
    76  ## What's next?
    77  
    78  In the next section of the tutorial, we'll [add two more nodes](add-nodes.md) to
    79  the cluster.