Troubleshooting Docker for use with Portainer
Portainer is built to run on Docker. If Docker is not configured correctly, then this can cause issues that appear to be coming from Portainer.
Ensuring Docker is configured correctly
The first thing to look at whether Docker is actually functioning correctly on your system.
$ docker version
The above command should have returned information about Docker running on your system. Below is a snippet of what this may look like.
$ Client: Docker Engine - Community Version: 19.03.3 API version: 1.40 Go version: go1.12.10 Git commit: a872fc2f86 Built: Tue Oct 8 00:59:59 2019 OS/Arch: linux/amd64 Experimental: false
Ensuring Docker Swarm is configured correctly
All nodes will require the following ports to be open:
For the manager node:
Next, make sure you are using the
- When creating the cluster via
docker swarm init, use
--advertise-addrwith either the private IP address or NIC name directly (
--advertise-addr eth1for example)
- When joining a cluster on worker nodes via
docker swarm join, use
--advertise-addrthe same as above with either private IP address or NIC name directly