Provisioning Docker Swarm on Scaleway

This is an work in progress, and has not been tested fully.

Requirements

Configuration variables

• Organization Key, and Access key from Scaleway as environment variables: export SCALEWAY_ORGANIZATION=xxxxxx export SCALEWAY_TOKEN=xxxxx

• TF variables worker_instance_count: how many workers (default 2) manager_instance_type: type of VM for manager (default VC1S) worker_instance_type: type of VM for manager (default VC1S) region: type of VM for manager (default ams1)

Packages

• Terraform installed
• jq installed

Get started

Inititate:

Download plugins for used by the TF scripts by running terraform init.

Define workspace

For example set workspace as production with terraform workspace new production

Plan

See if what the plan is by using terraform plan

Apply

Apply with terraform apply

Information

Storage Driver

I'm using overlay2 as the storage driver as recommended in the docker docs. https://docs.docker.com/engine/userguide/storagedriver/selectadriver/. This is defined in the docker template file.

External Data Source

I use an external data source that uses SSH to fetch information from the first manager node. You should note that you need to have a valid private key in ~/.ssh/id_rsa for that to work. TODO: use key from MOS (ministry of secret repo).