Merge pull request #62 from mbiberhofer/master

Fixed syntax issue in main/defaults.yml

.gitignore

@@ -1,2 +1,3 @@
 *.retry
-tests/test.sh
+*/__pycache__
+*.pyc

.travis.yml

@@ -1,23 +1,33 @@
 ---
+language: python
 services: docker
 
 env:
-  - distro: centos7
+  global:
-  - distro: centos6
+    - ROLE_NAME: certbot
-    playbook: test-source-install.yml
+  matrix:
-  - distro: ubuntu1604
+    - MOLECULE_DISTRO: centos7
-  - distro: ubuntu1404
+      MOLECULE_DOCKER_COMMAND: /usr/lib/systemd/systemd
-    playbook: test-source-install.yml
+    - MOLECULE_DISTRO: centos6
-  - distro: debian8
+      MOLECULE_PLAYBOOK: playbook-source-install.yml
-    playbook: test-source-install.yml
+    - MOLECULE_DISTRO: ubuntu1604
+    - MOLECULE_DISTRO: ubuntu1404
+      MOLECULE_PLAYBOOK: playbook-source-install.yml
+    - MOLECULE_DISTRO: debian9
+
+install:
+  # Install test dependencies.
+  - pip install molecule docker
+
+before_script:
+  # Use actual Ansible Galaxy role name for the project directory.
+  - cd ../
+  - mv ansible-role-$ROLE_NAME geerlingguy.$ROLE_NAME
+  - cd geerlingguy.$ROLE_NAME
 
 script:
-  # Download test shim.
-  - wget -O ${PWD}/tests/test.sh https://gist.githubusercontent.com/geerlingguy/73ef1e5ee45d8694570f334be385e181/raw/
-  - chmod +x ${PWD}/tests/test.sh
-
   # Run tests.
-  - ${PWD}/tests/test.sh
+  - molecule test
 
 notifications:
   webhooks: https://galaxy.ansible.com/api/v1/notifications/

README.md

@@ -8,25 +8,66 @@ Installs and configures Certbot (for Let's Encrypt).
 
 If installing from source, Git is required. You can install Git using the `geerlingguy.git` role.
 
+Generally, installing from source (see section `Source Installation from Git`) leads to a better experience using Certbot and Let's Encrypt, especially if you're using an older OS release.
+
 ## Role Variables
 
 The variable `certbot_install_from_source` controls whether to install Certbot from Git or package management. The latter is the default, so the variable defaults to `no`.
 
     certbot_auto_renew: true
-    certbot_auto_renew_user: "{{ ansible_user }}"
+    certbot_auto_renew_user: "{{ ansible_user | default(lookup('env', 'USER')) }}"
     certbot_auto_renew_hour: 3
     certbot_auto_renew_minute: 30
+    certbot_auto_renew_options: "--quiet --no-self-upgrade"
 
 By default, this role configures a cron job to run under the provided user account at the given hour and minute, every day. The defaults run `certbot renew` (or `certbot-auto renew`) via cron every day at 03:30:00 by the user you use in your Ansible playbook. It's preferred that you set a custom user/hour/minute so the renewal is during a low-traffic period and done by a non-root user account.
 
+### Automatic Certificate Generation
+
+Currently there is one built-in method for generating new certificates using this role: `standalone`. Other methods (e.g. using nginx or apache and a webroot) may be added in the future.
+
+**For a complete example**: see the fully functional test playbook in [tests/test-standalone-nginx-aws.yml](tests/test-standalone-nginx-aws.yml).
+
+    certbot_create_if_missing: false
+    certbot_create_method: standalone
+
+Set `certbot_create_if_missing` to `yes` or `True` to let this role generate certs. Set the method used for generating certs with the `certbot_create_method` variable—current allowed values include: `standalone`.
+
+    certbot_admin_email: email@example.com
+
+The email address used to agree to Let's Encrypt's TOS and subscribe to cert-related notifications. This should be customized and set to an email address that you or your organization regularly monitors.
+
+    certbot_certs: []
+      # - email: janedoe@example.com
+      #   domains:
+      #     - example1.com
+      #     - example2.com
+      # - domains:
+      #     - example3.com
+
+A list of domains (and other data) for which certs should be generated. You can add an `email` key to any list item to override the `certbot_admin_email`.
+
+    certbot_create_command: "{{ certbot_script }} certonly --standalone --noninteractive --agree-tos --email {{ cert_item.email | default(certbot_admin_email) }} -d {{ cert_item.domains | join(',') }}"
+
+The `certbot_create_command` defines the command used to generate the cert.
+
+#### Standalone Certificate Generation
+
+    certbot_create_standalone_stop_services:
+      - nginx
+
+Services that should be stopped while `certbot` runs it's own standalone server on ports 80 and 443. If you're running Apache, set this to `apache2` (Ubuntu), or `httpd` (RHEL), or if you have Nginx on port 443 and something else on port 80 (e.g. Varnish, a Java app, or something else), add it to the list so it is stopped when the certificate is generated.
+
+These services will only be stopped the first time a new cert is generated.
+
 ### Source Installation from Git
 
 You can install Certbot from it's Git source repository if desired. This might be useful in several cases, but especially when older distributions don't have Certbot packages available (e.g. CentOS < 7, Ubuntu < 16.10 and Debian < 8).
 
-    certbot_install_from_source: no
+    certbot_install_from_source: false
     certbot_repo: https://github.com/certbot/certbot.git
     certbot_version: master
-    certbot_keep_updated: yes
+    certbot_keep_updated: true
 
 Certbot Git repository options. To install from source, set `certbot_install_from_source` to `yes`. This clones the configured `certbot_repo`, respecting the `certbot_version` setting. If `certbot_keep_updated` is set to `yes`, the repository is updated every time this role runs.
 
@@ -34,6 +75,12 @@ Certbot Git repository options. To install from source, set `certbot_install_fro
 
 The directory inside which Certbot will be cloned.
 
+### Wildcard Certificates
+
+Let's Encrypt supports [generating wildcard certificates](https://community.letsencrypt.org/t/acme-v2-and-wildcard-certificate-support-is-live/55579), but the process for generating and using them is slightly more involved. See comments in [this pull request](https://github.com/geerlingguy/ansible-role-certbot/pull/60#issuecomment-423919284) for an example of how to use this role to maintain wildcard certs.
+
+Michael Porter also has a walkthrough of [Creating A Let’s Encrypt Wildcard Cert With Ansible](https://www.michaelpporter.com/2018/09/creating-a-wildcard-cert-with-ansible/), specifically with Cloudflare.
+
 ## Dependencies
 
 None.
@@ -50,13 +97,31 @@ None.
       roles:
         - geerlingguy.certbot
 
-After installation, you can create certificates using the `certbot` (or `certbot-auto`) script, which by default is installed inside the configured `certbot_dir` (when using Git). Here are some example commands to configure certificates with Certbot:
+See other examples in the `tests/` directory.
+
+### Manually creating certificates with certbot
+
+_Note: You can have this role automatically generate certificates; see the "Automatic Certificate Generation" documentation above._
+
+You can manually create certificates using the `certbot` (or `certbot-auto`) script (use `letsencrypt` on Ubuntu 16.04, or use `/opt/certbot/certbot-auto` if installing from source/Git. Here are some example commands to configure certificates with Certbot:
 
     # Automatically add certs for all Apache virtualhosts (use with caution!).
-    /opt/certbot/certbot-auto --apache
+    certbot --apache
 
     # Generate certs, but don't modify Apache configuration (safer).
-    /opt/certbot/certbot-auto --apache certonly
+    certbot --apache certonly
+
+If you want to fully automate the process of adding a new certificate, but don't want to use this role's built in functionality, you can do so using the command line options to register, accept the terms of service, and then generate a cert using the standalone server:
+
+  1. Make sure any services listening on ports 80 and 443 (Apache, Nginx, Varnish, etc.) are stopped.
+  2. Register with something like `certbot register --agree-tos --email [your-email@example.com]`
+    - Note: You won't need to do this step in the future, when generating additional certs on the same server.
+  3. Generate a cert for a domain whose DNS points to this server: `certbot certonly --noninteractive --standalone -d example.com -d www.example.com`
+  4. Re-start whatever was listening on ports 80 and 443 before.
+  5. Update your webserver's virtualhost TLS configuration to point at the new certificate (`fullchain.pem`) and private key (`privkey.pem`) Certbot just generated for the domain you passed in the `certbot` command.
+  6. Reload or restart your webserver so it uses the new HTTPS virtualhost configuration.
+
+### Certbot certificate auto-renewal
 
 By default, this role adds a cron job that will renew all installed certificates once per day at the hour and minute of your choosing.
 

defaults/main.yml

@@ -1,16 +1,38 @@
 ---
 # Certbot auto-renew cron job configuration (for certificate renewals).
 certbot_auto_renew: true
-certbot_auto_renew_user: "{{ ansible_user }}"
+certbot_auto_renew_user: "{{ ansible_user | default(lookup('env', 'USER')) }}"
 certbot_auto_renew_hour: 3
 certbot_auto_renew_minute: 30
+certbot_auto_renew_options: "--quiet --no-self-upgrade"
+
+# Parameters used when creating new Certbot certs.
+certbot_create_if_missing: false
+certbot_create_method: standalone
+certbot_admin_email: email@example.com
+certbot_certs: []
+# - email: janedoe@example.com
+#   domains:
+#     - example1.com
+#     - example2.com
+# - domains:
+#     - example3.com
+certbot_create_command: >-
+  {{ certbot_script }} certonly --standalone --noninteractive --agree-tos
+  --email {{ cert_item.email | default(certbot_admin_email) }}
+  -d {{ cert_item.domains | join(',') }}
+
+certbot_create_standalone_stop_services:
+  - nginx
+  # - apache
+  # - varnish
 
 # To install from source (on older OSes or if you need a specific or newer
 # version of Certbot), set this variable to `yes` and configure other options.
-certbot_install_from_source: no
+certbot_install_from_source: false
 certbot_repo: https://github.com/certbot/certbot.git
 certbot_version: master
-certbot_keep_updated: yes
+certbot_keep_updated: true
 
 # Where to put Certbot when installing from source.
 certbot_dir: /opt/certbot

meta/main.yml

@@ -6,7 +6,7 @@ galaxy_info:
   description: "Installs and configures Certbot (for Let's Encrypt)."
   company: "Midwestern Mac, LLC"
   license: "license (BSD, MIT)"
-  min_ansible_version: 2.0
+  min_ansible_version: 2.4
   platforms:
     - name: EL
       versions:

molecule/default/molecule.yml

@@ -0,0 +1,27 @@
+---
+dependency:
+  name: galaxy
+driver:
+  name: docker
+lint:
+  name: yamllint
+  options:
+    config-file: molecule/default/yaml-lint.yml
+platforms:
+  - name: instance
+    image: geerlingguy/docker-${MOLECULE_DISTRO:-centos7}-ansible
+    command: ${MOLECULE_DOCKER_COMMAND:-"sleep infinity"}
+    privileged: true
+    pre_build_image: true
+provisioner:
+  name: ansible
+  lint:
+    name: ansible-lint
+  playbooks:
+    converge: ${MOLECULE_PLAYBOOK:-playbook.yml}
+scenario:
+  name: default
+verifier:
+  name: testinfra
+  lint:
+    name: flake8

molecule/default/playbook-source-install.yml

@@ -1,8 +1,11 @@
 ---
-- hosts: all
+- name: Converge
+  hosts: all
+  become: true
 
   vars:
-    certbot_install_from_source: yes
+    certbot_install_from_source: true
+    certbot_auto_renew_user: root
 
   pre_tasks:
     - name: Update apt cache.
@@ -20,4 +23,4 @@
 
   roles:
     - geerlingguy.git
-    - role_under_test
+    - geerlingguy.certbot

molecule/default/playbook-standalone-nginx-aws.yml

@@ -0,0 +1,179 @@
+---
+# To run:
+#   1. Ensure Ansible and Boto are installed (pip install ansible boto).
+#   2. Ensure you have AWS credentials stored where Boto can find them, and they
+#      are under the profile 'mm'.
+#   3. Ensure you have a pubkey available at ~/.ssh/id_rsa.pub.
+#   3. Run the playbook: ansible-playbook test-standalone-nginx-aws.yml
+
+# Play 1: Provision EC2 instance and A record.
+- hosts: localhost
+  connection: local
+  gather_facts: false
+
+  tasks:
+    - name: Configure EC2 Security Group.
+      ec2_group:
+        profile: mm
+        name: certbot_test_http
+        description: HTTP security group for Certbot testing.
+        region: "us-east-1"
+        state: present
+        rules:
+          - proto: tcp
+            from_port: 80
+            to_port: 80
+            cidr_ip: 0.0.0.0/0
+          - proto: tcp
+            from_port: 443
+            to_port: 443
+            cidr_ip: 0.0.0.0/0
+          - proto: tcp
+            from_port: 22
+            to_port: 22
+            cidr_ip: 0.0.0.0/0
+        rules_egress: []
+
+    - name: Add EC2 Key Pair.
+      ec2_key:
+        profile: mm
+        region: "us-east-1"
+        name: certbot_test
+        key_material: "{{ item }}"
+      with_file: ~/.ssh/id_rsa.pub
+
+    - name: Provision EC2 instance.
+      ec2:
+        profile: mm
+        key_name: certbot_test
+        instance_tags:
+          Name: "certbot-standalone-nginx-test"
+        group: ['default', 'certbot_test_http']
+        instance_type: t2.micro
+        # CentOS Linux 7 x86_64 HVM EBS
+        image: ami-02e98f78
+        region: "us-east-1"
+        wait: true
+        wait_timeout: 500
+        exact_count: 1
+        count_tag:
+          Name: "certbot-standalone-nginx-test"
+      register: created_instance
+
+    - name: Add A record for the new EC2 instance IP in Route53.
+      route53:
+        profile: mm
+        command: create
+        zone: servercheck.in
+        record: certbot-test.servercheck.in
+        type: A
+        ttl: 300
+        value: "{{ created_instance.tagged_instances.0.public_ip }}"
+        wait: true
+        overwrite: true
+
+    - name: Add EC2 instance to inventory groups.
+      add_host:
+        name: "certbot-test.servercheck.in"
+        groups: "aws,aws_nginx"
+        ansible_ssh_user: centos
+        host_key_checking: false
+      when: created_instance.tagged_instances.0.id is defined
+
+# Play 2: Configure EC2 instance with Certbot and Nginx.
+- hosts: aws_nginx
+  gather_facts: true
+  become: true
+
+  vars:
+    certbot_admin_email: https@servercheck.in
+    certbot_create_if_missing: true
+    certbot_create_standalone_stop_services: []
+    certbot_certs:
+      - domains:
+          - certbot-test.servercheck.in
+    nginx_vhosts:
+      - listen: "443 ssl http2"
+        server_name: "certbot-test.servercheck.in"
+        root: "/usr/share/nginx/html"
+        index: "index.html index.htm"
+        state: "present"
+        template: "{{ nginx_vhost_template }}"
+        filename: "certbot_test.conf"
+        extra_parameters: |
+          ssl_certificate     /etc/letsencrypt/live/certbot-test.servercheck.in/fullchain.pem;
+          ssl_certificate_key /etc/letsencrypt/live/certbot-test.servercheck.in/privkey.pem;
+          ssl_protocols       TLSv1.1 TLSv1.2;
+          ssl_ciphers         HIGH:!aNULL:!MD5;
+
+  pre_tasks:
+    - name: Update apt cache.
+      apt: update_cache=true cache_valid_time=600
+      when: ansible_os_family == 'Debian'
+      changed_when: false
+
+    - name: Install dependencies (RedHat).
+      yum: name={{ item }} state=present
+      when: ansible_os_family == 'RedHat'
+      with_items:
+        - cronie
+        - epel-release
+
+    - name: Install cron (Debian).
+      apt: name=cron state=present
+      when: ansible_os_family == 'Debian'
+
+  roles:
+    - geerlingguy.certbot
+    - geerlingguy.nginx
+
+  tasks:
+    - name: Flush handlers in case any configs have changed.
+      meta: flush_handlers
+
+    - name: Test secure connection to SSL domain.
+      uri:
+        url: https://certbot-test.servercheck.in/
+        status_code: 200
+      delegate_to: localhost
+      become: false
+
+# Play 3: Tear down EC2 instance and A record.
+- hosts: localhost
+  connection: local
+  gather_facts: false
+
+  tasks:
+    - name: Destroy EC2 instance.
+      ec2:
+        profile: mm
+        instance_ids: ["{{ created_instance.tagged_instances.0.id }}"]
+        region: "us-east-1"
+        state: absent
+        wait: true
+        wait_timeout: 500
+
+    - name: Delete Security Group.
+      ec2_group:
+        profile: mm
+        name: certbot_test_http
+        region: "us-east-1"
+        state: absent
+
+    - name: Delete Key Pair.
+      ec2_key:
+        profile: mm
+        name: certbot_test
+        region: "us-east-1"
+        state: absent
+
+    - name: Delete Route53 record.
+      route53:
+        profile: mm
+        state: delete
+        zone: servercheck.in
+        record: certbot-test.servercheck.in
+        type: A
+        ttl: 300
+        # See: https://github.com/ansible/ansible/pull/32297
+        value: []

molecule/default/playbook.yml

@@ -1,5 +1,10 @@
 ---
-- hosts: all
+- name: Converge
+  hosts: all
+  become: true
+
+  vars:
+    certbot_auto_renew_user: root
 
   pre_tasks:
     - name: Update apt cache.
@@ -7,13 +12,16 @@
       when: ansible_os_family == 'Debian'
       changed_when: false
 
-    - name: Install cron (RedHat).
+    - name: Install dependencies (RedHat).
-      yum: name=cronie state=present
+      yum: name={{ item }} state=present
       when: ansible_os_family == 'RedHat'
+      with_items:
+        - cronie
+        - epel-release
 
     - name: Install cron (Debian).
       apt: name=cron state=present
       when: ansible_os_family == 'Debian'
 
   roles:
-    - role_under_test
+    - geerlingguy.certbot

molecule/default/requirements.yml

@@ -1,2 +1,3 @@
 ---
 - src: geerlingguy.git
+- src: geerlingguy.nginx

molecule/default/tests/test_default.py

@@ -0,0 +1,14 @@
+import os
+
+import testinfra.utils.ansible_runner
+
+testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
+    os.environ['MOLECULE_INVENTORY_FILE']).get_hosts('all')
+
+
+def test_hosts_file(host):
+    f = host.file('/etc/hosts')
+
+    assert f.exists
+    assert f.user == 'root'
+    assert f.group == 'root'

molecule/default/yaml-lint.yml

@@ -0,0 +1,6 @@
+---
+extends: default
+rules:
+  line-length:
+    max: 120
+    level: warning

tasks/create-cert-standalone.yml

@@ -0,0 +1,23 @@
+---
+- name: Check if certificate already exists.
+  stat:
+    path: /etc/letsencrypt/live/{{ cert_item.domains | first | replace('*.', '') }}/cert.pem
+  register: letsencrypt_cert
+
+- name: Stop services to allow certbot to generate a cert.
+  service:
+    name: "{{ item }}"
+    state: stopped
+  when: not letsencrypt_cert.stat.exists
+  with_items: "{{ certbot_create_standalone_stop_services }}"
+
+- name: Generate new certificate if one doesn't exist.
+  shell: "{{ certbot_create_command }}"
+  when: not letsencrypt_cert.stat.exists
+
+- name: Start services after cert has been generated.
+  service:
+    name: "{{ item }}"
+    state: started
+  when: not letsencrypt_cert.stat.exists
+  with_items: "{{ certbot_create_standalone_stop_services }}"

tasks/install-from-source.yml

@@ -5,7 +5,7 @@
     dest: "{{ certbot_dir }}"
     version: "{{ certbot_version }}"
     update: "{{ certbot_keep_updated }}"
-    force: yes
+    force: true
 
 - name: Set Certbot script variable.
   set_fact:

tasks/main.yml

@@ -1,11 +1,19 @@
 ---
-- include: include-vars.yml
+- import_tasks: include-vars.yml
 
-- include: install-with-package.yml
+- import_tasks: install-with-package.yml
   when: not certbot_install_from_source
 
-- include: install-from-source.yml
+- import_tasks: install-from-source.yml
   when: certbot_install_from_source
 
-- include: renew-cron.yml
+- include_tasks: create-cert-standalone.yml
+  with_items: "{{ certbot_certs }}"
+  when:
+    - certbot_create_if_missing
+    - certbot_create_method == 'standalone'
+  loop_control:
+    loop_var: cert_item
+
+- import_tasks: renew-cron.yml
   when: certbot_auto_renew

tasks/renew-cron.yml

@@ -2,7 +2,7 @@
 - name: Add cron job for certbot renewal (if configured).
   cron:
     name: Certbot automatic renewal.
-    job: "{{ certbot_script }} renew --quiet --no-self-upgrade"
+    job: "{{ certbot_script }} renew {{ certbot_auto_renew_options }}"
     minute: "{{ certbot_auto_renew_minute }}"
     hour: "{{ certbot_auto_renew_hour }}"
     user: "{{ certbot_auto_renew_user }}"

tests/README.md

@@ -1,11 +0,0 @@
-# Ansible Role tests
-
-To run the test playbook(s) in this directory:
-
-  1. Install and start Docker.
-  1. Download the test shim (see .travis.yml file for the URL) into `tests/test.sh`:
-    - `wget -O tests/test.sh https://gist.githubusercontent.com/geerlingguy/73ef1e5ee45d8694570f334be385e181/raw/`
-  1. Make the test shim executable: `chmod +x tests/test.sh`.
-  1. Run (from the role root directory) `distro=[distro] playbook=[playbook] ./tests/test.sh`
-
-If you don't want the container to be automatically deleted after the test playbook is run, add the following environment variables: `cleanup=false container_id=$(date +%s)`

vars/Ubuntu-16.04.yml

@@ -1 +1,2 @@
+---
 certbot_package: letsencrypt