From 754bbf7a25a8dda49b5d08ef0d0443bbf5af0e36 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Sun, 7 Apr 2024 13:41:34 -0500 Subject: new repository --- ...rm%2Fswarm-tutorial%2Fcreate-swarm%2Findex.html | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 devdocs/docker/engine%2Fswarm%2Fswarm-tutorial%2Fcreate-swarm%2Findex.html (limited to 'devdocs/docker/engine%2Fswarm%2Fswarm-tutorial%2Fcreate-swarm%2Findex.html') diff --git a/devdocs/docker/engine%2Fswarm%2Fswarm-tutorial%2Fcreate-swarm%2Findex.html b/devdocs/docker/engine%2Fswarm%2Fswarm-tutorial%2Fcreate-swarm%2Findex.html new file mode 100644 index 00000000..fb108639 --- /dev/null +++ b/devdocs/docker/engine%2Fswarm%2Fswarm-tutorial%2Fcreate-swarm%2Findex.html @@ -0,0 +1,40 @@ +

Create a swarm

+ +

After you complete the tutorial setup steps, you’re ready to create a swarm. Make sure the Docker Engine daemon is started on the host machines.

  1. Open a terminal and ssh into the machine where you want to run your manager node. This tutorial uses a machine named manager1. If you use Docker Machine, you can connect to it via SSH using the following command:

    $ docker-machine ssh manager1
+

  2. Run the following command to create a new swarm:

    $ docker swarm init --advertise-addr <MANAGER-IP>
+

    Note: If you are using Docker Desktop for Mac or Docker Desktop for Windows to test single-node swarm, simply run docker swarm init with no arguments. There is no need to specify --advertise-addr in this case. To learn more, see the topic on how to Use Docker Desktop for Mac or Docker Desktop for Windows with Swarm.

    In the tutorial, the following command creates a swarm on the manager1 machine:

    $ docker swarm init --advertise-addr 192.168.99.100
+Swarm initialized: current node (dxn1zf6l61qsb1josjja83ngz) is now a manager.
+
+To add a worker to this swarm, run the following command:
+
+    docker swarm join \
+    --token SWMTKN-1-49nj1cmql0jkz5s954yi3oex3nedyz0fb0xx14ie39trti4wxv-8vxv8rssmk743ojnwacrr2e7c \
+    192.168.99.100:2377
+
+To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.
+

    The --advertise-addr flag configures the manager node to publish its address as 192.168.99.100. The other nodes in the swarm must be able to access the manager at the IP address.

    The output includes the commands to join new nodes to the swarm. Nodes will join as managers or workers depending on the value for the --token flag.

  3. Run docker info to view the current state of the swarm:

    $ docker info
+
+Containers: 2
+Running: 0
+Paused: 0
+Stopped: 2
+  ...snip...
+Swarm: active
+  NodeID: dxn1zf6l61qsb1josjja83ngz
+  Is Manager: true
+  Managers: 1
+  Nodes: 1
+  ...snip...
+

  4. Run the docker node ls command to view information about nodes:

    $ docker node ls
+
+ID                           HOSTNAME  STATUS  AVAILABILITY  MANAGER STATUS
+dxn1zf6l61qsb1josjja83ngz *  manager1  Ready   Active        Leader
+
+

    The * next to the node ID indicates that you’re currently connected on this node.

    Docker Engine swarm mode automatically names the node for the machine host name. The tutorial covers other columns in later steps.

What’s next?

In the next section of the tutorial, we add two more nodes to the cluster.

+

tutorial, cluster management, swarm mode

+
+

+ © 2019 Docker, Inc.
Licensed under the Apache License, Version 2.0.
Docker and the Docker logo are trademarks or registered trademarks of Docker, Inc. in the United States and/or other countries.
Docker, Inc. and other parties may also have trademark rights in other terms used herein.
+ https://docs.docker.com/engine/swarm/swarm-tutorial/create-swarm/ +

+
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