Run tests with Ansible 2.9 as well (#296)

* Run some tests with Ansible 2.9. No need to run extra tests multiple times.

* Update ignore-2.9.txt.

* Adjust README.

* Add changelog fragment.

README.md

@@ -6,9 +6,7 @@ This repo contains the `community.general` Ansible Collection. The collection in
 
 ## Tested with Ansible
 
-Tested with the current Ansible 2.10 release and the current development version of Ansible.
-
-We do not actively test against Ansible 2.9, but the collection should be mostly functional with 2.9 as well. Ansible versions before 2.9.10 are not supported.
+Tested with the current Ansible 2.9 and 2.10 releases and the current development version of Ansible. Ansible versions before 2.9.10 are not supported.
 
 ## External requirements
 

changelogs/fragments/296-ansible-2.9.yml

@@ -0,0 +1,2 @@
+minor_changes:
+- "The collection is now actively tested in CI with the latest Ansible 2.9 release."

shippable.yml

@@ -18,7 +18,11 @@ matrix:
     - env: T=2.10/sanity/2
     - env: T=2.10/sanity/3
     - env: T=2.10/sanity/4
-    - env: T=2.10/sanity/extra
+
+    - env: T=2.9/sanity/1
+    - env: T=2.9/sanity/2
+    - env: T=2.9/sanity/3
+    - env: T=2.9/sanity/4
 
     - env: T=devel/units/2.6/1
     - env: T=devel/units/2.7/1
@@ -36,6 +40,13 @@ matrix:
     - env: T=2.10/units/3.8/1
     - env: T=2.10/units/3.9/1
 
+    - env: T=2.9/units/2.6/1
+    - env: T=2.9/units/2.7/1
+    - env: T=2.9/units/3.5/1
+    - env: T=2.9/units/3.6/1
+    - env: T=2.9/units/3.7/1
+    - env: T=2.9/units/3.8/1
+
     #- env: T=devel/aix/7.2/1
     - env: T=devel/osx/10.11/1
     - env: T=devel/rhel/7.8/1
@@ -128,6 +139,15 @@ matrix:
     - env: T=2.10/linux/ubuntu1804/4
     - env: T=2.10/cloud/3.6/1
 
+    - env: T=2.9/osx/10.11/1
+    - env: T=2.9/rhel/8.2/1
+    - env: T=2.9/freebsd/12.0/2
+    - env: T=2.9/linux/centos8/2
+    - env: T=2.9/linux/fedora31/3
+    - env: T=2.9/linux/opensuse15/3
+    - env: T=2.9/linux/ubuntu1804/4
+    - env: T=2.9/cloud/3.6/1
+
 branches:
   except:
     - "*-patch-*"