Deploying a new instance

On dokku

dokku apps:create ghost
dokku mysql:create ghost
dokku mysql:link ghost ghost
dokku storage:ensure-directory ghost
dokku storage:mount ghost /var/lib/dokku/data/storage/ghost:/var/lib/ghost/content

Then set the config:

dokku config:set ghost \
    database__client=mysql \
    database__connection__database=ghost \
    database__connection__host=dokku-mysql-ghost \
    database__connection__password=supersecretstring \
    database__connection__port=3306 \
    database__connection__user=mysql \
    mail__from=notifications@example.com \
    mail__options__auth__pass=mailtrappass \
    mail__options__auth__user=smtp@mailtrap.io \
    mail__options__host=live.smtp.mailtrap.io \
    mail__options__port=587 \
    mail__options__secure=false \
    mail__options__service=Mailtrap \
    mail__transport=SMTP \
    url=https://ghost.example.com

Then finally, deploy from docker:

dokku git:from-image ghost ghost:latest
dokku ports:set ghost http:80:2368
dokku letsencrypt:enable ghost 

Migrating writefreely from one dokku server to another one

On the old server

dokku mysql:export ghost > ghost.dump
tar -cvf storage.tar.gz /var/lib/dokku/data/storage

On local machine

Download the dump

sftp user@oldvps
get ghost.dump
get storage.tar.gz

Then exit sftp and copy the dump to the new server

scp ghost.dump vps:/home/user/
scp storage.tar.gz vps:/home/user/

Dokku on the new server

dokku apps:create ghost

# Set up writefreely data
tar xfv storage.tar.gz
sudo cp -r storage/ghost /var/lib/dokku/data/storage/ghost
dokku storage:ensure-directory ghost
dokku storage:mount ghost /var/lib/dokku/data/storage/ghost:/var/lib/ghost/content

# Set up writefreely db
dokku mysql:create ghost
dokku mysql:link ghost ghost
dokku mysql:import ghost < ghost.dump

Look at what the DATABASE_URL has been set to and get the db pass from there.

Then set the config:

dokku config:set ghost \
    database__client=mysql \
    database__connection__database=ghost \
    database__connection__host=dokku-mysql-ghost \
    database__connection__password=supersecretstring \
    database__connection__port=3306 \
    database__connection__user=mysql \
    mail__from=notifications@example.com \
    mail__options__auth__pass=mailtrappass \
    mail__options__auth__user=smtp@mailtrap.io \
    mail__options__host=live.smtp.mailtrap.io \
    mail__options__port=587 \
    mail__options__secure=false \
    mail__options__service=Mailtrap \
    mail__transport=SMTP \
    url=https://ghost.example.com

Then finally, deploy from docker:

dokku git:from-image ghost ghost:latest
dokku ports:set ghost http:80:2368
dokku letsencrypt:enable ghost