renovate.json

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "extends": [
    "config:recommended"
  ],
  "timezone": "Europe/Berlin",
  "schedule": "on friday",
  "automerge": true,
  "automergeStrategy": "squash",
  "platformAutomerge": false,
  "packageRules": [
    {"matchPackageNames": ["traefik"],"extractVersion": "^v(?<version>.*)$"},
    {"matchPackageNames": ["python", "debian"], "automerge": false},
    {"matchPackageNames": ["python"], "allowedVersions": "/^3\\.12(\\.\\d+)?(-.+)?$/"},
    {"matchPackageNames": ["debian"], "matchManagers": ["dockerfile"], "enabled": false},
    {"matchPackageNames": ["node"], "matchFileNames": ["docker/laserweb/Dockerfile"], "enabled": false}
  ],
  "customManagers": [
    {
      "customType": "regex",
      "managerFilePatterns": [
        "/(^|/|\\.)Dockerfile$/",
        "/(^|/)Dockerfile\\.[^/]*$/"
      ],
      "depNameTemplate": "debian",
      "versioningTemplate": "debian",
      "datasourceTemplate": "docker",
      "matchStrings": [
        "FROM.*(python|node):[\\w\\d\\.]+-(?:slim-)?(?<currentValue>[a-z0-9]+)(?:\\s+.*)?",
        "FROM.*debian:(?<currentValue>[a-z0-9]+)(?:-slim)?(?:\\s+.*)?"
      ]
    }
  ]
}