-
Install Vagrant (tested on 2.2.7+) - https://www.vagrantup.com/
-
Install Virtualbox (tested on 6.0.0+)- https://www.virtualbox.org/
- Download or clone this respository using git clone if you haven't done yet:
[YOUR COMPUTER]$ git clone https://github.com/PacktPublishing/Docker-Certified-Associate-DCA-Exam-Guide.git
- Navigate to "environments/swarm" and execute vagrant up to create a new environment.
[YOUR COMPUTER]$ cd Docker-Certified-Associate-DCA-Exam-Guide
[YOUR COMPUTER]/Docker-Certified-Associate-DCA-Exam-Guide/environments/swarm/
[YOUR COMPUTER]/Docker-Certified-Associate-DCA-Exam-Guide/environments/swarm$ vagrant up
--------------------------------------------------------------------------------------------
DOCKER swarm Vagrant Environment
Engine Version: current
--------------------------------------------------------------------------------------------
Bringing machine 'swarm-node1' up with 'virtualbox' provider...
Bringing machine 'swarm-node2' up with 'virtualbox' provider...
Bringing machine 'swarm-node3' up with 'virtualbox' provider...
==> swarm-node1: Checking if box 'frjaraur/xenial64' version '1.4' is up to date...
==> swarm-node1: Clearing any previously set forwarded ports...
...
...
After some minutes (depending on your hosts' free resources), your environment will be up and ready for execting the labs.
Verify virtual platform status executing vagrant status:
[YOUR COMPUTER]/Docker-Certified-Associate-DCA-Exam-Guide/environments/swarm$ vagrant status
--------------------------------------------------------------------------------------------
DOCKER swarm Vagrant Environment
Engine Version: current
--------------------------------------------------------------------------------------------
Current machine states:
swarm-node1 running (virtualbox)
swarm-node2 running (virtualbox)
swarm-node3 running (virtualbox)
swarm-node4 running (virtualbox)
This environment represents multiple VMs. The VMs are all listed
above with their current state. For more information about a specific
VM, run `vagrant status NAME`.
[YOUR COMPUTER]/Docker-Certified-Associate-DCA-Exam-Guide/environments/swarm$
- This will create the nodes defined in config.yml with latest Docker Engine installed. This is configurable via config.yml among other options, such as the number of nodes. In this case, we will simply comment all the lines regarding an specific box.
environment:
# Valid Engine Versions are 'experimental', 'test' and 'current'
engine_version: "current"
experimental: true
base_box: "frjaraur/bionic64"
base_box_version: "1.1"
#proxy: "http://your_proxy_goes_here:with_the_port"
boxes:
- name: "swarm-node1"
swarm_role: "manager"
mgmt_ip: "10.10.10.11"
hostonly_ip: "192.168.56.11"
mem: "1524"
cpu: "1"
- name: "swarm-node2"
swarm_role: "worker"
mgmt_ip: "10.10.10.12"
hostonly_ip: "192.168.56.12"
mem: "1524"
cpu: "1"
- name: "swarm-node3"
swarm_role: "worker"
mgmt_ip: "10.10.10.13"
hostonly_ip: "192.168.56.13"
mem: "1524"
cpu: "1"
- name: "swarm-node4"
swarm_role: "worker"
mgmt_ip: "10.10.10.14"
hostonly_ip: "192.168.56.14"
mem: "1524"
cpu: "1"
Default node names:
- swarm-node1
- swarm-node2
- swarm-node3
- swarm-node4
- Connect to nodes using vagrant as usual (vagrant ssh).
[YOUR COMPUTER]/Docker-Certified-Associate-DCA-Exam-Guide/environments/swarm$ vagrant ssh swarm-node1
--------------------------------------------------------------------------------------------
DOCKER swarm Vagrant Environment
Engine Version: current
--------------------------------------------------------------------------------------------
Welcome to Ubuntu 16.04.4 LTS (GNU/Linux 4.4.0-116-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
215 packages can be updated.
138 updates are security updates.
New release '18.04.4 LTS' available.
Run 'do-release-upgrade' to upgrade to it.
Last login: Sun May 17 21:40:14 2020 from 10.0.2.2
vagrant@swarm-node1:~$
Then you are "in" your virtual node "swarm-node1" and you can follow all Docker swarm's labs.
NOTE:
It could be useful to define simple alias: alias vssh='vagrant ssh'
- When you have finnished all your labs, simple execute vagrant destroy -f. This will delete all virtual nodes.
[YOUR COMPUTER]/Docker-Certified-Associate-DCA-Exam-Guide/environments/swarm$ vagrant destroy -f
Deployment will create 2 interfaces on each node.
vagrant internal communication (internal)
internal docker network with IP addresses configured in config.yml
config.yml will let you configure your environment and the amount of nodes to be deployed. You can change Docker Engine releases and experimental features.