Add extensions to chromatichq/php-apache-node image?

[mmatsoo]

Description

There are (at least) a couple of our projects that install extensions in .tugboat/config.yml that could be pre-installed in the Docker image being used (chromatichq/php-apache-node:8.3).

Namely, I have found these lines in both Cuningham's and Imprivata's .tugboat/config.yml files.

image: 'chromatichq/php-apache-node:8.3'
.
.
.
  commands:
    init:
      - apt-get update
      - apt-get install --yes jpegoptim pngquant libwebp-dev
     # Configure GD with WebP Support.
      - docker-php-ext-configure gd --with-freetype --with-webp --with-jpeg
      - docker-php-ext-install gd

If jpegoptim, pngquant etc. were pre-installed in the image, we could get rid of them from the projects' .tugboat/config.yml files.

[apotek]

We are discussing this in the engineering council, and while we still are unsure about maintaining docker images, it is the process we have, and it's better for us to install our dependencies there than in the init hooks (unless there is something very very unusual that's required).

So let's do this.

[apotek]

@mmatsoo I'm assigning this to you, but bounce it to me if you want.