Add Ubuntu 20.04 to CI (#176)

* Add Ubuntu 20.04 to CI.

* Also use longer keys for Ubuntu 20.04.

* Fix condition.

.azure-pipelines/azure-pipelines.yml

@@ -106,6 +106,8 @@ stages:
               test: ubuntu1604
             - name: Ubuntu 18.04
               test: ubuntu1804
+            - name: Ubuntu 20.04
+              test: ubuntu2004
   - stage: Docker_2_10
     displayName: Docker 2.10
     dependsOn: []

tests/integration/targets/setup_openssl/vars/main.yml

@@ -1,3 +1,9 @@
 ---
 default_rsa_key_size: 1024
-default_rsa_key_size_certifiates: '{{ 2048 if ansible_os_family == "RedHat" and ansible_facts.distribution_major_version | int >= 8 else 1024 }}'
+default_rsa_key_size_certifiates: >-
+  {{
+      2048 if
+        (ansible_os_family == "RedHat" and ansible_facts.distribution_major_version | int >= 8) or
+        (ansible_distribution == "Ubuntu" and ansible_facts.distribution_major_version | int >= 20)
+      else 1024
+  }}