Playground

vagrant virtualbox backed docker swarm environment provisioned with ansible.

Requirements

Software

• ansible
• vagrant
• virtualbox

Hardware

Each node of the virtualbox backed cluster is configured with 4GB RAM and 2CPU's. Update the provider configuration to change the defaults.

Build

Update the ansible_eth0 variable with the interface that the swarm manager should advertise itself on: sed -i -e "s/ansible_enp0s8/ansible_eth0/g" playbooks/deploy.yml

Build the environment using vagrant: vagrant up

The openssh-server:latest image will be loaded on all nodes if the file exists at /vagrant/openssh-server/openssh-server.tar.gz during the provisioning.

Note: the swarm nodes are provisioned in parallel with ansible using the tips & tricks.

Usage

1. connect to the manager node: vagrant ssh node1
2. create a passwordless ssh rsa key pair for the vagrant user i.e.: ssh-keygen -N "" -m PEM -t rsa -b 4096 -C "vagrant@bastion" -f ~/.ssh/id_rsa
3. set the REGISTRY_HTTP_SECRET environment variable and deploy the bastion stack

cd /vagrant
REGISTRY_HTTP_SECRET=$(openssl rand -base64 32) docker stack deploy --compose-file docker-compose.yml bastion

4. test the openssh-server connections: ssh -p 443 ubuntu@localhost
5. test the registry connections:

docker tag openssh-server:latest docker.localhost/openssh-server:latest
docker push docker.localhost/openssh-server:latest