first version

.gitignore

@@ -0,0 +1,2 @@
+.kitchen/*
+

.kitchen.yml

@@ -0,0 +1,27 @@
+driver:
+  name: docker_cli
+
+transport:
+  name: docker_cli
+
+provisioner:
+  name: ansible_playbook
+  hosts: localhost
+  require_ansible_repo: false
+  require_ansible_omnibus: true
+  require_chef_for_busser: true
+  ansible_verbose: false
+  ansible_version: <% if ENV['ANSIBLE_VERSION'] %><%= ENV['ANSIBLE_VERSION'] %><% else %><%= '2.4.4.0' %><% end %>
+  ansible_inventory: ./test/integration/inventory
+
+platforms:
+  - name: debian-9
+    driver_config:
+      image: nishiki/ansible:stretch
+      command: /bin/systemd
+      volume:
+        - /sys/fs/cgroup:/sys/fs/cgroup:ro
+      security_opt: seccomp=unconfined
+
+suites:
+  - name: fail2ban

CHANGELOG.md

@@ -0,0 +1,4 @@
+# CHANGELOG
+## v1.0.0 (2018-08-06)
+
+* first version

Gemfile

@@ -0,0 +1,8 @@
+source 'https://rubygems.org'
+
+group :development do
+  gem 'kitchen-ansible'
+  gem 'kitchen-docker_cli'
+  gem 'rubocop', '0.50.0'
+  gem 'test-kitchen'
+end

Gemfile.lock

@@ -0,0 +1,92 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    ast (2.4.0)
+    builder (3.2.3)
+    erubis (2.7.0)
+    ffi (1.9.23)
+    gssapi (1.2.0)
+      ffi (>= 1.0.1)
+    gyoku (1.3.1)
+      builder (>= 2.1.2)
+    httpclient (2.8.3)
+    kitchen-ansible (0.47.5)
+      net-ssh (>= 3)
+      test-kitchen (~> 1.4)
+    kitchen-docker_cli (0.18.0)
+      test-kitchen (>= 1.3)
+    little-plugger (1.1.4)
+    logging (2.2.2)
+      little-plugger (~> 1.1)
+      multi_json (~> 1.10)
+    mixlib-install (3.9.3)
+      mixlib-shellout
+      mixlib-versioning
+      thor
+    mixlib-shellout (2.3.2)
+    mixlib-versioning (1.2.2)
+    multi_json (1.13.1)
+    net-scp (1.2.1)
+      net-ssh (>= 2.6.5)
+    net-ssh (4.2.0)
+    net-ssh-gateway (1.3.0)
+      net-ssh (>= 2.6.5)
+    nori (2.6.0)
+    parallel (1.12.1)
+    parser (2.5.0.2)
+      ast (~> 2.4.0)
+    powerpack (0.1.1)
+    rainbow (2.2.2)
+      rake
+    rake (12.3.1)
+    rubocop (0.50.0)
+      parallel (~> 1.10)
+      parser (>= 2.3.3.1, < 3.0)
+      powerpack (~> 0.1)
+      rainbow (>= 2.2.2, < 3.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (~> 1.0, >= 1.0.1)
+    ruby-progressbar (1.9.0)
+    rubyntlm (0.6.2)
+    rubyzip (1.2.1)
+    test-kitchen (1.20.0)
+      mixlib-install (~> 3.6)
+      mixlib-shellout (>= 1.2, < 3.0)
+      net-scp (~> 1.1)
+      net-ssh (>= 2.9, < 5.0)
+      net-ssh-gateway (~> 1.2)
+      thor (~> 0.19, < 0.19.2)
+      winrm (~> 2.0)
+      winrm-elevated (~> 1.0)
+      winrm-fs (~> 1.1.0)
+    thor (0.19.1)
+    unicode-display_width (1.3.0)
+    winrm (2.2.3)
+      builder (>= 2.1.2)
+      erubis (~> 2.7)
+      gssapi (~> 1.2)
+      gyoku (~> 1.0)
+      httpclient (~> 2.2, >= 2.2.0.2)
+      logging (>= 1.6.1, < 3.0)
+      nori (~> 2.0)
+      rubyntlm (~> 0.6.0, >= 0.6.1)
+    winrm-elevated (1.1.0)
+      winrm (~> 2.0)
+      winrm-fs (~> 1.0)
+    winrm-fs (1.1.1)
+      erubis (~> 2.7)
+      logging (>= 1.6.1, < 3.0)
+      rubyzip (~> 1.1)
+      winrm (~> 2.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  kitchen-ansible
+  kitchen-docker_cli
+  rubocop (= 0.50.0)
+  test-kitchen
+
+BUNDLED WITH
+   1.16.0

LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
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+
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+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
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+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
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+      file or class name and description of purpose be included on the
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+
+   Copyright 2018 Adrien Waksberg
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

README.md

@@ -0,0 +1,68 @@
+# Ansible role: Fail2ban
+[![Version](https://img.shields.io/badge/latest_version-1.0.0-green.svg)](https://git.yaegashi.fr/nishiki/ansible-role-fail2ban/releases)
+[![License](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](https://git.yaegashi.fr/nishiki/ansible-role-fail2ban/src/branch/master/LICENSE)
+
+Install and configure Fail2ban
+
+## Requirements
+
+None
+
+## Role variables
+
+* `fail2ban_blocktype` - iptable policy for an ip banned (default: `DROP`)
+* `fail2ban_bantime` - default ban time in second (default: `600`)
+* `fail2ban_findtime` - default find time in second to count the retries (default: `600`)
+* `fail2ban_maxretry` - default max retry before a ban (default: `6`)
+* `fail2ban_ignoreip` - array with the ips ignored
+* `fail2ban_filters` - array with custom filters
+```
+  - name: web
+    failregex: Login failed.*Remote IP.*'<HOST>' 
+```
+* `fail2ban_jails` -  array with the modules to enable
+```
+  - name: web
+    logpath: /var/log/web.log
+    filter: web
+    port: 80,443
+    additional:
+      maxretry: 3
+      bantime: 3600
+```
+
+## How to use
+
+ * Install:
+```
+- hosts: server
+  roles:
+    - fail2ban
+```
+
+## Development
+### Tests with docker
+
+  * install [docker](https://docs.docker.com/engine/installation/)
+  * install ruby
+  * install bundler `gem install bundler`
+  * install dependencies `bundle install`
+  * run the tests `kitchen test`
+
+## License
+
+```
+Copyright (c) 2018 Adrien Waksberg
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+```

defaults/main.yml

@@ -0,0 +1,9 @@
+fail2ban_blocktype: DROP
+fail2ban_bantime: 600
+fail2ban_findtime: 600
+fail2ban_maxretry: 6
+fail2ban_backend: polling
+fail2ban_usedns: warn
+fail2ban_ignoreip: []
+fail2ban_filters: []
+fail2ban_jails: []

handlers/main.yml

@@ -0,0 +1,2 @@
+- name: restart fail2ban
+  service: name=fail2ban state=restarted

tasks/main.yml

@@ -0,0 +1,63 @@
+- name: install fail2ban packages
+  apt:
+    name: '{{ item }}'
+    state: present
+  with_items:
+    - fail2ban
+    - whois
+    - bsd-mailx
+  tags: fail2ban
+
+- name: remove default config
+  file:
+    path: /etc/fail2ban/jail.d/defaults-debian.conf
+    state: absent
+  tags: fail2ban
+
+- name: copy main configuration
+  template:
+    src: jail.conf.j2
+    dest: /etc/fail2ban/jail.conf
+    owner: root
+    group: root
+    mode: 0644
+  notify: restart fail2ban
+  tags: fail2ban
+
+- name: copy iptables blocktype configuration
+  template:
+    src: iptables-blocktype.conf.j2
+    dest: /etc/fail2ban/action.d/iptables-blocktype.conf
+    owner: root
+    group: root
+    mode: 0644
+  notify: restart fail2ban
+  tags: fail2ban
+
+- name: copy fail2ban filters
+  template:
+    src: filter.conf.j2
+    dest: '/etc/fail2ban/filter.d/{{ item.name }}.conf'
+    owner: root
+    group: root
+    mode: 0644
+  with_items: '{{ fail2ban_filters }}'
+  notify: restart fail2ban
+  tags: fail2ban
+
+- name: copy jails file
+  template:
+    src: 'jails.conf.j2'
+    dest: '/etc/fail2ban/jail.d/jails.conf'
+    owner: root
+    group: root
+    mode: 0644
+  notify: restart fail2ban
+  tags: fail2ban
+
+- name: enable and start fail2ban
+  service:
+    name: fail2ban
+    enabled: yes
+    state: started
+  tags: fail2ban

templates/filter.conf.j2

@@ -0,0 +1,7 @@
+; {{ ansible_managed }}
+[INCLUDES]
+before = common.conf
+
+[Definition]
+failregex = {{ item.failregex }}
+ignoreregex = {{ item.ignoreregex|default('') }}

templates/iptables-blocktype.conf.j2

@@ -0,0 +1,6 @@
+; {{ ansible_managed }}
+[INCLUDES]
+after = iptables-blocktype.local
+
+[Init]
+blocktype = {{ fail2ban_blocktype }}

templates/jail.conf.j2

@@ -0,0 +1,33 @@
+; {{ ansible_managed }}
+[DEFAULT]
+
+ignoreip = 127.0.0.1/8{% for ip in fail2ban_ignoreip %} {{ ip }}{% endfor %}
+ignorecommand =
+
+bantime = {{ fail2ban_bantime }}
+findtime = {{ fail2ban_findtime }}
+maxretry = {{ fail2ban_maxretry }}
+backend = {{ fail2ban_backend }}
+usedns = {{ fail2ban_usedns }}
+
+{% if fail2ban_mail is defined %}
+destemail = {{ fail2ban_mail.destmail }}
+sendername = {{ fail2ban_mail.sendername|default('Fail2Ban') }}
+sender = {{ fail2ban_mail.sender_mail }}
+mta = {{ fail2ban_mail.mta|default('mail') }}
+
+{% endif %}
+banaction = iptables-multiport
+protocol = tcp
+chain = INPUT
+action_ = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"]
+action_mw = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"]
+{% if fail2ban_mail is defined %}
+            %(mta)s-whois[name=%(__name__)s, dest="%(destemail)s", protocol="%(protocol)s", chain="%(chain)s", sendername="%(sendername)s"]
+
+{% endif %}
+action_mwl = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"]
+{% if fail2ban_mail is defined %}
+             %(mta)s-whois-lines[name=%(__name__)s, dest="%(destemail)s", logpath=%(logpath)s, chain="%(chain)s", sendername="%(sendername)s"]
+{% endif %}
+action = %(action_mw)s

templates/jails.conf.j2

@@ -0,0 +1,14 @@
+; {{ ansible_managed }}
+{% for jail in fail2ban_jails %}
+
+[{{ jail.name }}]
+enabled = true
+logpath = {{ jail.logpath }}
+port = {{ jail.port }}
+filter = {{ jail.filter }}
+{% if jail.additional is defined %}
+{% for option, value in jail.additional.iteritems() %}
+{{ option }} = {{ value }}
+{% endfor %}
+{% endif %}
+{% endfor %}

test/integration/fail2ban/default.yml

@@ -0,0 +1,19 @@
+- hosts: fail2ban
+  connection: local
+  vars:
+    fail2ban_jails:
+      - name: ssh
+        logpath: /var/log/alternatives.log
+        filter: sshd
+        port: 22
+      - name: nextcloud
+        logpath: /var/log/alternatives.log
+        filter: nextcloud
+        port: 80,443
+        additional:
+          maxretry: 2
+    fail2ban_filters:
+      - name: nextcloud
+        failregex: Login failed.*Remote IP.*'<HOST>' 
+  roles:
+      - ansible-role-fail2ban

test/integration/fail2ban/serverspec/fail2ban_spec.rb

@@ -0,0 +1,42 @@
+require 'serverspec'
+
+set :backend, :exec
+
+describe package('fail2ban') do
+  it { should be_installed }
+end
+
+describe file('/etc/fail2ban/jail.conf') do
+  it { should exist }
+  it { should be_file }
+  it { should be_mode 644 }
+  it { should be_owned_by 'root' }
+  it { should be_grouped_into 'root' }
+  it { should contain 'bantime = 600' }
+end
+
+describe file('/etc/fail2ban/jail.d/jails.conf') do
+  it { should exist }
+  it { should be_file }
+  it { should be_mode 644 }
+  it { should be_owned_by 'root' }
+  it { should be_grouped_into 'root' }
+  it { should contain '[ssh]' }
+  it { should contain '[nextcloud]' }
+  it { should contain 'port = 80,443' }
+  it { should contain 'maxretry = 2' }
+end
+
+describe file('/etc/fail2ban/filter.d/nextcloud.conf') do
+  it { should exist }
+  it { should be_file }
+  it { should be_mode 644 }
+  it { should be_owned_by 'root' }
+  it { should be_grouped_into 'root' }
+  it { should contain "failregex = Login failed.*Remote IP.*'<HOST>'" }
+end
+
+describe service('fail2ban') do
+  it { should be_enabled }
+  it { should be_running.under('systemd') }
+end

test/integration/inventory

@@ -0,0 +1,2 @@
+[fail2ban]
+localhost