Drone and Hugo

Wednesday, August 4, 2021

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

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