Question 302858 in Nginx Question posted in
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Nginx – sort and update a docker-compose.yaml with jq

This is my docker-compose file:

{
  "name": "movies-docker-test",
  "services": {
    "movies-rp": {
      "volumes": [
        {
          "type": "volume",
          "source": "certs",
          "target": "/etc/nginx/certs",
        },
        {
          "type": "bind",
          "source": "/home/nblanchet/jeudi_infra/kubernetes/okd/movies-docker-test/reverse-proxy/wikibase.conf.template",
          "target": "/etc/nginx/templates/wikibase.conf.template"
        }
      ]
    }
  }
}

I’d like to update this file so that each volumes of each service to be sorted by the ‘.type’:

{
  "name": "movies-docker-test",
  "services": {
    "movies-rp": {
      "volumes": [
        {
          "type": "bind",
          "source": "/home/nblanchet/jeudi_infra/kubernetes/okd/movies-docker-test/reverse-proxy/wikibase.conf.template",
          "target": "/etc/nginx/templates/wikibase.conf.template"
        },
        {
          "type": "volume",
          "source": "certs",
          "target": "/etc/nginx/certs"
        }
      ]
    }

I managed to do this, but the file is not updated:

jq  '[.services[].volumes[]?]|sort_by(.type)'
Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    here is what I successfully tested with ''yq'' and the wrapped ''jq'' syntax

    yq '.services|=with_entries(.value|=(select(has("volumes")).volumes |= sort_by((.type)) ))' docker-compose.yml

    or what I initially did with regular ''jq''

    cat movies.yml | yq eval -ojson |  jq '.services|=with_entries(.value|=(select(has("volumes")).volumes |= sort_by((.type)) ))' | yq -P

  2. 0

    Given file:

    name: movies-docker-test
services:
  movies-rp:
    volumes:
      - type: volume
        source: conf
        target: /etc/nginx/conf.d
      - type: volume
        source: certs
        target: /etc/nginx/certs
        read_only: true
      - type: bind
        source: /home/nblanchet/jeudi_infra/kubernetes/okd/movies-docker-test/reverse-proxy/uploadsize.conf
        target: /etc/nginx/conf.d/uploadsize.conf
      - type: bind
        source: /home/nblanchet/jeudi_infra/kubernetes/okd/movies-docker-test/reverse-proxy/wikibase.conf.template
        target: /etc/nginx/templates/wikibase.conf.template

    then, using yq 4.40.3:

    $ yq e 'select(.services.*.volumes | select(tag == "!!seq")|=sort_by(.type))' file

    name: movies-docker-test
services:
  movies-rp:
    volumes:
      - type: bind
        source: /home/nblanchet/jeudi_infra/kubernetes/okd/movies-docker-test/reverse-proxy/uploadsize.conf
        target: /etc/nginx/conf.d/uploadsize.conf
      - type: bind
        source: /home/nblanchet/jeudi_infra/kubernetes/okd/movies-docker-test/reverse-proxy/wikibase.conf.template
        target: /etc/nginx/templates/wikibase.conf.template
      - type: volume
        source: conf
        target: /etc/nginx/conf.d
      - type: volume
        source: certs
        target: /etc/nginx/certs
        read_only: true
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