[Docker] Building an environment to use Hugo


In this article, I will summarize the procedure for creating a virtual environment for running Hugo (static site generator) with Docker.


VS Code installation Reference: Introduction to Docker with VS Code

Overall picture

In order to create a virtual environment with Docker, it is necessary to create docker-compose.yml. It is necessary to describe the image to be used (material that creates the virtual environment) and detailed settings in this file. Docker Hub is a Docker image storage area. スクリーンショット 2020-10-06 17.11.13.png


Search for available images (materials for creating virtual environments (containers))

When building an environment with Docker, check if there is an image that can already be used

On Hugo's official website, I searched with Docker and found an image recommended by the official, so use the following. スクリーンショット 2020-09-15 15.24.17.png https://hub.docker.com/r/klakegg/hugo/

Create docker-compose.yml

Create docker-compose.yml based on the following sample described in klakegg / hugo スクリーンショット 2020-09-15 15.31.22.png

In this article, the goal is to hit the "hugo" command in a virtual environment, so I wrote it as follows. The reason for selecting the image is shown at the bottom.


version: '3'
        image: klakegg/hugo:0.74.3-ubuntu
            - ".:/src"
        entrypoint: bash
            - "1313:1313"
        tty: true
        working_dir: /src

About each tag


version: '3' #The latest version is'3' 
services: #Fixed
    servicename: #Give the name of any service
        image:Image name:Tag name#Specify the image to be used from Docker Hub
            -Local folder path:Container folder path#Linking local and virtual machine folders
        entrypoint:processing# entrypoint:Described when you want to overwrite the default entry point
        ports: #Because I want to run "hugo server"
            - "Host side: Container side"
        tty: true      #Required when entering a container with Attach Shell
        working_dir:Container folder path#Working directory in the container

Supplement about port

By using "hugo server", you can check the screen created by hugo. Therefore, port 1313 is used by default, but in order to use the server started on the container side locally, it is necessary to connect the local and container ports. スクリーンショット 2020-09-16 11.00.52.png

Execute the virtual environment construction command

Make sure Docker is running and run the following command

docker-compose up -d

スクリーンショット 2020-09-15 16.52.57.png Container creation is complete! Click Attach Shell to enter the container you created スクリーンショット 2020-09-15 17.33.48.png Type "hugo version" and it's OK if the hugo version is returned スクリーンショット 2020-09-15 17.34.10.png

(Remarks) Reason why image is set to klakegg / hugo: 0.74.3-ubuntu

Initially, I was considering using [Hugo 0.74.3: 0.74.3] in [Default minimal image based upon ** Busybox **:], but I couldn't use the "bash" command. Therefore, I adopted [hugo: 0.74.3-ubuntu] which can use this command. The process leading up to the change is shown below.

Checking tags on Docker hub


Search for the contents of the image with [Tags] and check

スクリーンショット 2020-09-15 16.35.44.png

In Hugo 0.74.3, hugo is called with ENTRYPOINT. スクリーンショット_2020-09-15_16_35_27.png I want to execute the "hugo" command at any time, not at startup

Fix docker-compose.yml

Overwrite the image entrypoint by writing entrypoint: bash and do nothing at startup.


version: '3'
        image: klakegg/hugo:0.74.3
            - ".:/src"
        entrypoint: bash
            - "1313:1313"
        tty: true
        working_dir: /src

Building a virtual environment

Execute the virtual environment construction command. Execute the following command in the docker-compose.yml folder

docker-compose up -d

An error has occurred and the container cannot be created.

スクリーンショット 2020-09-15 16.51.53.png You can't use the bash command with the default BusyBox tag Therefore, we adopted klakegg / hugo: 0.74.3-ubuntu which can use the bash command.


I explained how to write docker-compose.yml Overview of Docker Hub Compose File Reference

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