This blog is deployed using a series of technologies from Kubernetes and Helm down to its core using Hugo. One of the annoyances with Hugo is that one needs to build the static content before it is deployed. This is easy enough to do, all you need to do is invoke the hugo command while in the correct directory, but I constantly forget to to this manual step. Instead of manually trying to remember to run this, I built out my Drone CI to do it for me.
First I built a container that includes Hugo. I have made this available via my Docker Hub: binaryronin/drone-hugo. This container doesn’t require any arguments and works on the assumption that Drone automatically clones to /drone/src and moves this directory between the containers. In my example below however, my blog does not sit at the root level of the git repo, but in a subdirectory called blog. I also make use of Git Submodules for my theme, so it is important to also make sure and clone those as well.
- name: clone submodules
image: alpine/git
commands:
- git submodule init
- git submodule update --recursive --remote
- name: build static content
image: binaryronin/drone-hugo:latest
pull: always
commands:
- cd /drone/src/blog
- hugo
That’s really about it. After that is all the normal stuff of building the container and deploying it with Helm. The entire configuration is included below for the sake of completeness.
---
kind: pipeline
type: kubernetes
name: build and deploy
steps:
- name: clone submodules
image: alpine/git
commands:
- git submodule init
- git submodule update --recursive --remote
- name: lint chart
image: pelotech/drone-helm3
settings:
mode: lint
chart: ./helm/
- name: build static content
image: binaryronin/drone-hugo:latest
pull: always
commands:
- cd /drone/src/blog
- hugo
- name: build production container
image: plugins/buildah-docker
settings:
repo: binaryronin/website
tags: latest
username:
from_secret: docker_username
password:
from_secret: docker_secret
when:
branch:
- master
- name: deploy
image: pelotech/drone-helm3
settings:
mode: upgrade
chart: ./helm/
namespace: blog
release: binaryronin
values_files: ./helm/values.yaml
skip_tls_verify: true
environment:
KUBE_API_SERVER:
from_secret: k8s_api_server
KUBE_TOKEN:
from_secret: k8s_token
KUBE_SERVICE_ACCOUNT:
from_secret: k8s_service_account
when:
branch:
- master
- name: notify
image: appleboy/drone-discord
settings:
webhook_id:
from_secret: discord_id
webhook_token:
from_secret: discord_secret
when:
branch:
- master
image_pull_secrets:
- docker_pull