Alpine Linux 3.16

Dockerfile

@@ -1,9 +1,22 @@
-ARG FAIL2BAN_VERSION="0.11.2"
+# syntax=docker/dockerfile:1
 
-FROM alpine:3.15
+ARG FAIL2BAN_VERSION=0.11.2
+ARG ALPINE_VERSION=3.16
 
+FROM --platform=$BUILDPLATFORM alpine:${ALPINE_VERSION} AS fail2ban-src
+RUN apk add --no-cache git patch
+WORKDIR /src/fail2ban
 ARG FAIL2BAN_VERSION
-RUN apk --update --no-cache add \
+RUN <<EOT
+git clone https://github.com/fail2ban/fail2ban.git .
+git reset --hard $FAIL2BAN_VERSION
+EOT
+COPY patches /src/patches
+RUN patch -p1 < /src/patches/fix-gh-3098-build-fails-with-error-in-fail2ban-setup.patch
+
+FROM alpine:${ALPINE_VERSION}
+RUN --mount=from=fail2ban-src,source=/src/fail2ban,target=/tmp/fail2ban,rw \
+  apk --update --no-cache add \
     bash \
     curl \
     grep \
@@ -25,14 +38,11 @@ RUN apk --update --no-cache add \
     python3-dev \
   && pip3 install --upgrade pip \
   && pip3 install dnspython3 pyinotify \
-  && cd /tmp \
-  && curl -SsOL https://github.com/fail2ban/fail2ban/archive/${FAIL2BAN_VERSION}.zip \
-  && unzip ${FAIL2BAN_VERSION}.zip \
-  && cd fail2ban-${FAIL2BAN_VERSION} \
+  && cd /tmp/fail2ban \
   && 2to3 -w --no-diffs bin/* fail2ban \
   && python3 setup.py install \
   && apk del build-dependencies \
-  && rm -rf /etc/fail2ban/jail.d /tmp/*
+  && rm -rf /etc/fail2ban/jail.d
 
 COPY entrypoint.sh /entrypoint.sh
 

patches/fix-gh-3098-build-fails-with-error-in-fail2ban-setup.patch

@@ -0,0 +1,67 @@
+From 5ac303df8a171f748330d4c645ccbf1c2c7f3497 Mon Sep 17 00:00:00 2001
+From: sebres <info@sebres.de>
+Date: Sun, 19 Sep 2021 18:49:18 +0200
+Subject: [PATCH] fix gh-3098: build fails with error in fail2ban setup
+ command: use_2to3 is invalid (setuptools 58+)
+
+---
+ setup.py | 16 +---------------
+ 1 file changed, 1 insertion(+), 15 deletions(-)
+
+diff --git a/setup.py b/setup.py
+index f4c2550f..98413273 100755
+--- a/setup.py
++++ b/setup.py
+@@ -48,7 +48,7 @@ import warnings
+ from glob import glob
+
+ from fail2ban.setup import updatePyExec
+-
++from fail2ban.version import version
+
+ source_dir = os.path.realpath(os.path.dirname(
+ 	# __file__ seems to be overwritten sometimes on some python versions (e.g. bug of 2.6 by running under cProfile, etc.):
+@@ -112,22 +112,12 @@ class install_scripts_f2b(install_scripts):
+ # Wrapper to specify fail2ban own options:
+ class install_command_f2b(install):
+ 	user_options = install.user_options + [
+-		('disable-2to3', None, 'Specify to deactivate 2to3, e.g. if the install runs from fail2ban test-cases.'),
+ 		('without-tests', None, 'without tests files installation'),
+ 	]
+ 	def initialize_options(self):
+-		self.disable_2to3 = None
+ 		self.without_tests = not with_tests
+ 		install.initialize_options(self)
+ 	def finalize_options(self):
+-		global _2to3
+-		## in the test cases 2to3 should be already done (fail2ban-2to3):
+-		if self.disable_2to3:
+-			_2to3 = False
+-		if _2to3:
+-			cmdclass = self.distribution.cmdclass
+-			cmdclass['build_py'] = build_py_2to3
+-			cmdclass['build_scripts'] = build_scripts_2to3
+ 		if self.without_tests:
+ 			self.distribution.scripts.remove('bin/fail2ban-testcases')
+
+@@ -178,7 +168,6 @@ commands.'''
+ if setuptools:
+ 	setup_extra = {
+ 		'test_suite': "fail2ban.tests.utils.gatherTests",
+-		'use_2to3': True,
+ 	}
+ else:
+ 	setup_extra = {}
+@@ -202,9 +191,6 @@ if platform_system in ('linux', 'solaris', 'sunos') or platform_system.startswit
+ 		('/usr/share/doc/fail2ban', doc_files)
+ 	)
+
+-# Get version number, avoiding importing fail2ban.
+-# This is due to tests not functioning for python3 as 2to3 takes place later
+-exec(open(join("fail2ban", "version.py")).read())
+
+ setup(
+ 	name = "fail2ban",
+--
+
+