Setup docker swarm “manager”

First, install docker on the portainer server. This will be the “agent manager”.

Then, run the following command, to enable swarm mode:

docker swarm init

This will run your current docker both as manager and worker node by default. You can connect other docker environments as workers (Documentation not written yet).

Then install the portainer.

Setup portainer agent

Use

docker swarm init

if you want to create a new manager node or

docker swarm join

to join an existing swarm.

Create the network:

docker network create \
--driver overlay \
  portainer_agent_network

Then create the service:

docker service create \
  --name portainer_agent \
  --network portainer_agent_network \
  --publish mode=host,target=9001,published=9001,protocol=tcp \
  --mode global \
  --constraint 'node.platform.os == linux' \
  --mount type=bind,src=//var/run/docker.sock,dst=/var/run/docker.sock \
  --mount type=bind,src=//var/lib/docker/volumes,dst=/var/lib/docker/volumes \
  portainer/agent:latest

Convenience Script:

wget:

wget -q -O - https://raw.githubusercontent.com/gaesteklo/gaesteklo.github.io/main/scripts/docker-swarm.sh | bash

curl:

bash <(curl -fsSL https://raw.githubusercontent.com/gaesteklo/gaesteklo.github.io/main/scripts/docker-swarm.sh)

ATTENTION: Make sure what you are executing by looking at this file first. Don't just execute untrusted code!