Automatically upgrade pinned packages in a Dockerfile

alpine.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# A python script to update alpine requirements in docker
#
import glob
import os
import re
import sys
from urllib.request import Request, urlopen
from bs4 import BeautifulSoup
import massedit

filename = "Dockerfile"
if os.path.exists(filename):
  print("--------------")
  textfile = open(filename, "r")
  DockerfileContent = textfile.read()
  textfile.close()

  # finding the alpine version
  # currently compatible with these formats:
  #  - python:x.y.z-alpinex.y.z
  #  - alpine:x.y.z
  #  - golang:x.y.z-alpinex.y.z
  alpine_search = re.search("FROM.*alpine(:|)(.*)", DockerfileContent)
  alpine = alpine_search.group(2)
  print("Alpine Version: ", alpine)

  # find all locked apks installed
  APKList = re.findall("(([a-z-]+)==[a-z0-9.-]+)", DockerfileContent)
  for version, apk in APKList:
      print("--------------")
      print("Upgrading: ", apk)
      page = (urlopen(Request(f"https://pkgs.alpinelinux.org/packages?name=" + apk + "&branch=v" + alpine + "&arch=x86_64")).read().decode("ascii", "ignore"))
      soup = BeautifulSoup(page, "html5lib")
      versions = soup.find("td", class_="version").find(text=True)
      date = soup.find("td", class_="bdate").find(text=True)
      print(apk, versions, date)

      massedit.edit_files([filename],[ "re.sub(r'"+ apk+"=[a-z0-9.-:-+]+', '"+apk+"="+versions+"', line)"] ,dry_run=True,)
      massedit.edit_files([filename],[ "re.sub(r'"+ apk+"=[a-z0-9.-:-+]+', '"+apk+"="+versions+"', line)"] ,dry_run=False,)

debian.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# A python script to update debian requirements in docker
#
import glob
import os
import re
import sys
from urllib.request import Request, urlopen
from bs4 import BeautifulSoup
import massedit

filename = "Dockerfile"
os_version = "buster"
if os.path.exists(filename):
    print("--------------")
    textfile = open(filename, "r")
    DockerfileContent = textfile.read()
    textfile.close()

    # maybe override os_version with detected os
    # problem : stable / slim are not in web ui
    os_search = re.search("FROM.*debian(:|)(.*)", DockerfileContent)
    os = os_search.group(2)
    print("os Version: ", os, os_version)

    # find all locked pkgs installed
    packageList = re.findall("(([a-z-]+)=[a-z0-9.-]+)", DockerfileContent)
    for version, pkg in packageList:
        print("--------------")
        print("Upgrading: ", pkg)
        page = ( urlopen(Request(f"https://packages.debian.org/" + os_version + "/" + pkg)).read().decode("ascii", "ignore"))
        soup = BeautifulSoup(page, "html5lib")

        # Get the list of versions
        versions = soup.find("h1").find(text=True)
        version = re.findall("\(([a-z0-9.-:-+]+).*\)", versions)
        try:
            print(pkg, version[0])
            massedit.edit_files([filename],[ "re.sub(r'"+ pkg+"=[a-z0-9.-:-+]+', '"+pkg+"="+version[0]+"', line)"] ,dry_run=True,)
            massedit.edit_files([filename],[ "re.sub(r'"+ pkg+"=[a-z0-9.-:-+]+', '"+pkg+"="+version[0]+"', line)"] ,dry_run=False,)
        except IndexError:
            print ('unable to find version')

requirements.txt

html5lib==1.0.1
beautifulsoup4==4.8.2
massedit==0.68.6