Update dockerfile for new ubuntu LTS :)

Dockerfile

@@ -1,5 +1,5 @@
 #!/bin/bash
-FROM ubuntu:bionic
+FROM ubuntu:focal
 #RUN rm /bin/sh && ln -s /bin/bash /bin/sh
 
     #variables
@@ -34,9 +34,13 @@ RUN apt-get install apache2 -y && \
     apt-get install php php-dev php-pear libapache2-mod-php -y && \
 
     #install certbot, sendmail and ssmtp for ssl and mails
-    add-apt-repository ppa:certbot/certbot -y && \
-    apt-get update && \
-    apt-get install python-certbot-apache -y
+    apt update && \
+    apt install python3 python3-venv libaugeas0 -y && \
+    python3 -m venv /opt/certbot/ && \
+    /opt/certbot/bin/pip install --upgrade pip && \
+    /opt/certbot/bin/pip install certbot certbot-apache && \
+    ln -s /opt/certbot/bin/certbot /usr/bin/certbot
+
 
 COPY ./scripts /scripts
 COPY ./entrypoint-custom /

README.md

@@ -1,5 +1,6 @@
 ### php-apache-certbot
-Docker image with php, pear, xdiff, pagespeed, apache and certbot. Based on ubuntu:bionic
+Docker image with php, pear, xdiff, pagespeed, apache and certbot. Based on ubuntu:focal
+(Old version based on ubuntu:bionic is available on build monkeycompany/php-apache-certbot:e26af93)
 
 Docker hub : [monkeycompany/php-apache-certbot](https://hub.docker.com/r/monkeycompany/php-apache-certbot/)
 
@@ -12,10 +13,11 @@ Github project : [monkey-company/php-apache-certbot](https://github.com/monkey-c
 [![Monkey Company](https://img.shields.io/badge/Monkey-Company-red.svg?longCache=true&style=flat)](https://themonkey.co/)
 ![GitHub](https://img.shields.io/github/license/monkey-company/php-apache-certbot.svg)
 [![Build Status](https://travis-ci.org/monkey-company/php-apache-certbot.svg?branch=master)](https://travis-ci.org/monkey-company/php-apache-certbot)
+[![Docker Pulls](https://img.shields.io/docker/pulls/monkeycompany/php-apache-certbot.svg)](https://hub.docker.com/r/monkeycompany/php-apache-certbot/)
+[![Docker Stars](https://img.shields.io/docker/stars/monkeycompany/php-apache-certbot)](https://hub.docker.com/r/monkeycompany/php-apache-certbot/)
 ![GitHub last commit](https://img.shields.io/github/last-commit/monkey-company/php-apache-certbot.svg)
 [![GitHub release](https://img.shields.io/github/release/monkey-company/php-apache-certbot.svg)](https://github.com/monkey-company/php-apache-certbot/releases/latest)
 ![GitHub repo size in bytes](https://img.shields.io/github/repo-size/monkey-company/php-apache-certbot.svg)
-[![Docker Pulls](https://img.shields.io/docker/pulls/monkeycompany/php-apache-certbot.svg)](https://hub.docker.com/r/monkeycompany/php-apache-certbot/)
 ![GitHub language count](https://img.shields.io/github/languages/count/monkey-company/php-apache-certbot.svg)
 
 [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fmonkey-company%2Fphp-apache-certbot.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fmonkey-company%2Fphp-apache-certbot?ref=badge_large)