198 lines
11 KiB
Markdown
198 lines
11 KiB
Markdown
# Install Dokku on DreamHost Cloud Server with cloud-init
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Cloud-init script can be used to automate installation of Dokku on
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Dreamhost (or any other OpenStack-compatible cloud with minimal
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changes).
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A new server instance can be created on DreamHost Cloud from the command line
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using openstack client or from the web UI and with the same command
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use a cloud-init script to install Dokku. Install the [openstack
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cli](https://help.dreamhost.com/hc/en-us/articles/216185658-How-to-Install-the-OpenStack-command-line-clients),
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download the [DreamHost Cloud credentials
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file](https://iad2.dreamcompute.com/project/access_and_security/api_access/openrc/)
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before proceeding and make sure your public SSH key is added to the
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cloud.
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```sh
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source openrc.sh # Set the environment variables for DreamHost Cloud
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```
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This allows openstack client to connect to DreamHost API endpoints.
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The command below creates a new server instance named `my-dokku-instance`
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based on Ubuntu 14.04, with 2GB RAM and 1CPU (the flavor called
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`supersonic`), opening network port access to http and ssh (the
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`default` security group), and the name of the chosen SSH key. This
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key will be automatically added to the new server in the
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`authorized_keys` for the default SSH user (`ubuntu`), and it will
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be reused by Dokku.
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```sh
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openstack server create \
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--image Ubuntu-14.04 \
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--flavor gp1.supersonic \
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--security-group default \
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--key-name $YOUR_SSH_KEYNAME \
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--user-data dokku-cloudinit.sh \
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my-dokku-instance
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```
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The content of dokku-cloudinit.sh script contains instructions to add
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Docker and Dokku's apt repositories and install Dokku with the proper
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debconf options set. Don't forget to add the FQDN for your application
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server:
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```yaml
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#cloud-config
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apt_upgrade: true
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apt_sources:
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- source: "deb https://packagecloud.io/dokku/dokku/ubuntu/ trusty main"
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key: |
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-----BEGIN PGP PUBLIC KEY BLOCK-----
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Version: SKS 1.1.5
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Comment: Hostname: pgpkeys.eu
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=H60S
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-----END PGP PUBLIC KEY BLOCK-----
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filename: dokku.list
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- source: "deb https://apt.dockerproject.org/repo ubuntu-trusty main"
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key: |
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-----BEGIN PGP PUBLIC KEY BLOCK-----
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Version: SKS 1.1.5
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Comment: Hostname: pgpkeys.co.uk
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=Yhur
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-----END PGP PUBLIC KEY BLOCK-----
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filename: docker.list
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package_upgrade: true
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debconf_selections: |
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dokku dokku/web_config boolean false
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dokku dokku/vhost_enable boolean true
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# set the domain name of the new Dokku server
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dokku dokku/hostname string $YOUR_FULL_QUALIFIED_DOMAIN
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# this copies over the public SSH key assigned to the server
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dokku dokku/key_file string /home/ubuntu/.ssh/authorized_keys
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packages:
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- dokku
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```
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Shortly after running the create command you will get a confirmation that the
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instance has been created, and after about a minute it should be ready to login.
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Check the IP of the instance through the web UI or by running:
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```sh
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nova list
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```
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SSH with the `ubuntu` username and the public key previously added.
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Keep in mind that if you logged in quick enough dokku might still be installing
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in the background, and not be ready. The installation takes a few minutes.
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