Fix tests on debian10, CentOS 7 and remove support for CentOS 6

tasks/include-vars.yml

@@ -3,6 +3,7 @@
   include_vars: "{{ item }}"
   with_first_found:
     - "{{ ansible_distribution }}-{{ ansible_distribution_version }}.yml"
+    - "{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.yml"
     - "{{ ansible_distribution }}.yml"
     - "{{ ansible_os_family }}.yml"
     - "default.yml"

tasks/install-from-source.yml

@@ -7,12 +7,6 @@
     update: "{{ certbot_keep_updated }}"
     force: true
 
-- name: Install Certbot route53 plugin.
-  package:
-    name:
-      - python3-certbot-dns-route53
-    state: present
-
 - name: Set Certbot script variable.
   set_fact:
     certbot_script: "{{ certbot_dir }}/certbot-auto"
@@ -21,3 +15,8 @@
   file:
     path: "{{ certbot_script }}"
     mode: 0755
+
+- name: Install Certbot route53 plugin.
+  package:
+    name: "{{ certbot_route53_package }}"
+    state: present

tasks/install-with-package.yml

@@ -6,8 +6,7 @@
 
 - name: Install Certbot route53 plugin.
   package:
-    name:
-      - python3-certbot-dns-route53
+    name: "{{ certbot_route53_package }}"
     state: present
 
 - name: Set Certbot script variable.

tasks/main.yml

@@ -14,7 +14,7 @@
   with_items: "{{ certbot_certs }}"
   when:
     - certbot_create_if_missing
-    - certbot_create_method == 'standalone'
+    - certbot_create_method == 'certonly'
   loop_control:
     loop_var: cert_item