Update testing (#147)

* Remove superfluous requirements file.

* Update RHEL 7.6 to RHEL 7.8 in CI.

* Fix docker install.

* ci_complete

tests/integration/targets/setup_docker/tasks/Debian.yml

@@ -1,3 +1,4 @@
+---
 - name: Get OS version
   shell: uname -r
   register: os_version

tests/integration/targets/setup_docker/tasks/Fedora.yml

@@ -1,3 +1,4 @@
+---
 - name: Add repository
   yum_repository:
     file: docker-ce

tests/integration/targets/setup_docker/tasks/RedHat-7.yml

@@ -1,3 +1,4 @@
+---
 # The RHEL extras repository must be enabled to provide the container-selinux package.
 # See: https://docs.docker.com/engine/installation/linux/docker-ee/rhel/#install-using-the-repository
 
@@ -12,7 +13,8 @@
     name: setup_epel
 
 - name: Enable extras repository for RHEL on AWS
-  command: yum-config-manager --enable rhui-REGION-rhel-server-extras
+  # RHEL 7.6 uses rhui-REGION-rhel-server-extras and RHEL 7.7+ use rhui-rhel-7-server-rhui-extras-rpms
+  command: yum-config-manager --enable rhui-REGION-rhel-server-extras rhui-rhel-7-server-rhui-extras-rpms
   args:
     warn: no
 

tests/integration/targets/setup_docker/tasks/RedHat-8.yml

@@ -1,3 +1,4 @@
+---
 # The RHEL extras repository must be enabled to provide the container-selinux package.
 # See: https://docs.docker.com/engine/installation/linux/docker-ee/rhel/#install-using-the-repository
 

tests/integration/targets/setup_docker/tasks/Suse.yml

@@ -1,3 +1,4 @@
+---
 - name: Install docker 17
   community.general.zypper:
     name: "{{ docker_packages }}"

tests/integration/targets/setup_docker/tasks/main.yml

@@ -1,3 +1,4 @@
+---
 - name: Setup Docker
   when: ansible_facts.distribution ~ ansible_facts.distribution_major_version not in  ['CentOS6', 'RedHat6']
   block: