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Building Ghost Version 2 Blog for the RaspberryPi
- Authors
- Name
- Ruan Bekker
- @ruanbekker
In this post we will setup Ghost 2.0.3 for the Raspberry Pi on Docker Swarm
Dockerfile
Our dockerfile:
FROM rbekker87/armhf-node:8.11
RUN apk add --no-cache 'su-exec>=0.2' && apk --update add bash gcc g++ make python && npm install sqlite3 --build-from-source
ENV NODE_ENV production
ENV GHOST_CLI_VERSION 1.9.1
ENV GHOST_VERSION 2.0.3
ENV GHOST_INSTALL /var/lib/ghost
ENV GHOST_CONTENT /var/lib/ghost/content
RUN npm install -g "ghost-cli@$GHOST_CLI_VERSION"
RUN set -ex; \
mkdir -p "$GHOST_INSTALL" \
&& adduser -s /bin/sh -D node \
&& chown node:node "$GHOST_INSTALL" \
&& su-exec node ghost install "$GHOST_VERSION" --db sqlite3 --no-prompt --no-stack --no-setup --dir "$GHOST_INSTALL" \
&& cd "$GHOST_INSTALL" \
&& su-exec node ghost config --ip 0.0.0.0 --port 2368 --no-prompt --db sqlite3 --url http://localhost:2368 --dbpath "$GHOST_CONTENT/data/ghost.db" \
&& su-exec node ghost config paths.contentPath "$GHOST_CONTENT" \
&& su-exec node ln -s config.production.json "$GHOST_INSTALL/config.development.json" \
&& readlink -f "$GHOST_INSTALL/config.development.json" \
&& mv "$GHOST_CONTENT" "$GHOST_INSTALL/content.orig" \
&& mkdir -p "$GHOST_CONTENT" && chown node:node "$GHOST_CONTENT" \
&& "$GHOST_INSTALL/current/node_modules/knex-migrator/bin/knex-migrator" --version
ENV PATH $PATH:$GHOST_INSTALL/current/node_modules/knex-migrator/bin
WORKDIR $GHOST_INSTALL
COPY docker-entrypoint.sh /usr/local/bin
RUN chmod +x /usr/local/bin/docker-entrypoint.sh
ENTRYPOINT ["docker-entrypoint.sh"]
CMD ["node", "current/index.js"]
Our Boot Script
Our entrypoint script docker-entrypoint.sh
:
#!/bin/bash
set -e
if [[ "$*" == node*current/index.js* ]] && [ "$(id -u)" = '0' ];
then
chown -R node "$GHOST_CONTENT"
exec su-exec node "$BASH_SOURCE" "$@"
fi
if [[ "$*" == node*current/index.js* ]];
then
baseDir="$GHOST_INSTALL/content.orig"
for src in "$baseDir"/*/ "$baseDir"/themes/*;
do
src="${src%/}"
target="$GHOST_CONTENT/${src#$baseDir/}"
mkdir -p "$(dirname "$target")"
if [ ! -e "$target" ];
then
tar -cC "$(dirname "$src")" "$(basename "$src")" | tar -xC "$(dirname "$target")"
fi
done
knex-migrator-migrate --init --mgpath "$GHOST_INSTALL/current"
fi
prod() {
cat > /var/lib/ghost/config.development.json << EOF
{
"url": "http://${SERVER_URL:-localhost}:${SERVER_PORT:-2368}",
"server": {
"port": ${SERVER_PORT:-2368},
"host": "0.0.0.0"
},
"database": {
"client": "sqlite3",
"connection": {
"filename": "/var/lib/ghost/content/data/ghost.db"
}
},
"mail": {
"transport": "SMTP",
"from": "${FROM_NAME:-MyBlog} <${FROM_EMAIL:-ghost-blog@localhost}>",
"options": {
"service": "Mailgun",
"host": "${SMTP_HOST:-localhost}",
"port": ${SMTP_PORT:-25},
"auth": {
"user": "${SMTP_AUTH_USERNAME:-root}",
"pass": "${SMTP_AUTH_PASSWORD:-password}"
}
}
},
"logging": {
"transports": [
"file",
"stdout"
]
},
"process": "systemd",
"paths": {
"contentPath": "/var/lib/ghost/content"
}
}
EOF
}
dev() {
cat > /var/lib/ghost/config.development.json << EOF
{
"url": "http://${SERVER_URL:-localhost}:${SERVER_PORT:-2368}",
"server": {
"port": ${SERVER_PORT:-2368},
"host": "0.0.0.0"
},
"database": {
"client": "sqlite3",
"connection": {
"filename": "/var/lib/ghost/content/data/ghost.db"
}
},
"mail": {
"transport": "Direct"
},
"logging": {
"transports": [
"file",
"stdout"
]
},
"process": "systemd",
"paths": {
"contentPath": "/var/lib/ghost/content"
}
}
EOF
}
test(){
cat > /var/lib/ghost/config.development.json << EOF
{
"url": "http://localhost:2368",
"server": {
"port": 2368,
"host": "0.0.0.0"
},
"database": {
"client": "sqlite3",
"connection": {
"filename": "/var/lib/ghost/content/data/ghost.db"
}
},
"mail": {
"transport": "Direct"
},
"logging": {
"transports": [
"file",
"stdout"
]
},
"process": "systemd",
"paths": {
"contentPath": "/var/lib/ghost/content"
}
}
EOF
}
if [ "${ENV_TYPE}" = "PROD" ]
then prod
elif [ "${ENV_TYPE}" = "DEV" ]
then dev
else test
fi
exec "$@"
The entrypoint script takes a couple of environment variables, as you can see if they are not defined, defaults will be inherited.
Configurable Environment Variables:
- ENV_TYPE=PROD
- SERVER_PORT=2368
- SERVER_URL=myblog.pistack.co.za
- FROM_NAME=MyName
- SMTP_HOST=mail.mydomain.co.za
- SMTP_PORT=587
- SMTP_AUTH_USERNAME=me@mydomain.co.za
- SMTP_AUTH_PASSWORD=secret
Building our Ghost Image
I have a public image available if you dont want to build/push, but for building:
$ docker build -t your-name/repo:tag
Deploy Ghost with Traefik
Our ghost-compose.yml
with traefik will look like the following, note that I mounted the source path to the container's path, the source path is running on a replicated glusterfs volume, which can be setup following this post
Also for this demonstration I was using the domain pistack.co.za, where you need to utilize the domain of your choice.
version: "3.4"
services:
ghost:
image: rbekker87/armhf-ghost:2.0.3
networks:
- appnet
volumes:
- type: bind
source: /mnt/volumes/myblog/content/data
target: /var/www/ghost/content/data
environment:
- ENV_TYPE=PROD
- SERVER_PORT=2368
- SERVER_URL=myblog.pistack.co.za
- FROM_NAME=MyName
- SMTP_HOST=mail.mydomain.co.za
- SMTP_PORT=587
- SMTP_AUTH_USERNAME=me@mydomain.co.za
- SMTP_AUTH_PASSWORD=secret
deploy:
replicas: 1
labels:
- "traefik.enable=true"
- "traefik.backend=ghost"
- "traefik.backend.loadbalancer.swarm=true"
- "traefik.docker.network=appnet"
- "traefik.port=2368"
- "traefik.frontend.passHostHeader=true"
- "traefik.frontend.rule=Host:myblog.pistack.co.za"
replicas: 3
update_config:
parallelism: 2
delay: 10s
restart_policy:
condition: on-failure
placement:
constraints: [node.role == worker]
networks:
appnet:
external: true
Deploy the stack:
$ docker stack deploy -c ghost-compose.yml web
Once the service is up, you will be able to reach your blog on the provided traefik.frontend.rule
. If you don't have traefik running, you can follow this post to get traefik up and running.
Resources:
Thank You
Thanks for reading, if you like my content, feel free to check out my website, and subscribe to my newsletter or follow me at @ruanbekker on Twitter.
- Linktree: https://go.ruan.dev/links
- Patreon: https://go.ruan.dev/patreon