DreamHost Cloud Server Installation Notes¶
Cloud-init script can be used to automate installation of Dokku on Dreamhost (or any other OpenStack-compatible cloud with minimal changes).
A new server instance can be created on DreamHost Cloud from the command line using OpenStack client or from the web UI and with the same command use a cloud-init script to install Dokku. Install the OpenStack CLI, download the DreamHost Cloud credentials file before proceeding and make sure your public SSH key is added to the cloud.
This allows OpenStack client to connect to DreamHost API endpoints.
The command below creates a new server instance named my-dokku-instance
based on Ubuntu 24.04, with 2 GB RAM and 1 CPU (the flavor called
supersonic
), opening network port access to HTTP and SSH (the
default
security group), and the name of the chosen SSH key. This
key will be automatically added to the new server in the
authorized_keys
for the default SSH user (ubuntu
), and it will
be reused by Dokku.
openstack server create \
--image Ubuntu-24.04 \
--flavor gp1.supersonic \
--security-group default \
--key-name $YOUR_SSH_KEYNAME \
--user-data dokku-cloudinit.sh \
my-dokku-instance
The content of dokku-cloudinit.sh script contains instructions to add Docker and Dokku's apt repositories and install Dokku with the proper debconf options set. Don't forget to add the FQDN for your application server:
#cloud-config
apt:
sources:
source_dokku:
source: 'deb https://packagecloud.io/dokku/dokku/ubuntu/ $RELEASE main'
key: |
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source_docker:
source: 'deb [arch=amd64] https://download.docker.com/linux/ubuntu $RELEASE stable'
key: |
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debconf_selections:
vhost: dokku dokku/vhost_enable boolean true
# set the domain name of the new Dokku server
hostname: dokku dokku/hostname string $YOUR_FULL_QUALIFIED_DOMAIN
# this copies over the public SSH key assigned to the server
key: dokku dokku/key_file string /home/ubuntu/.ssh/authorized_keys
packages:
- dokku
package_update: true
package_upgrade: true
package_reboot_if_required: true
Shortly after running the create command you will get a confirmation that the instance has been created, and after about a minute it should be ready to login. Check the IP of the instance through the web UI or by running:
SSH with the ubuntu
username and the public key previously added.
Keep in mind that if you logged in quick enough Dokku might still be installing in the background, and not be ready. The installation takes a few minutes.