Problem: Ansible gives a poor error message when its version is too old

and it sees new syntax.

Solution: Add a pre_task to check the ansible version,
and use yamllint and ansible-lint exceptions from ansible-pulp.

Also:
Update submodules (unrelated)
Add commneted out config setting for pulp-rpm

re: #5558
Add ansible-pulp logic to grab epel-release from the internet
https://pulp.plan.io/issues/5558

[noissue]

.ansible-lint

@@ -0,0 +1 @@
+ansible-pulp/.ansible-lint

.yamllint

@@ -0,0 +1 @@
+ansible-pulp/.yamllint

example.dev-config.yml

@@ -30,5 +30,7 @@ developer_user: "vagrant"
 developer_user_home: "/home/vagrant"
 pulp_plugin_source_dir: "/home/vagrant/devel/pulpcore-plugin"
 pulp_source_dir: "/home/vagrant/devel/pulpcore"
+# Uncomment if using pulp-rpm
+#pulp_use_system_wide_pkgs: true
 pulp_settings:
   secret_key: "unsafe_default"

example.user-config.yml

@@ -11,5 +11,8 @@ pulp_install_plugins:
   # pulp-rpm:
   #   prereq_role: "/home/vagrant/devel/pulp-rpm-prerequisites"
   pulp-file: {}
+
+# Uncomment if using pulp-rpm
+#pulp_use_system_wide_pkgs: true
 pulp_settings:
   secret_key: "unsafe_default"

playbooks/source-install.yml

@@ -9,6 +9,14 @@
       with_first_found: "{{ paths_to_vars_files }}"
     - name: Set up Vagrant machine for source installs
       include: ../vagrant/vagrant-pretask.yml
+
+    # The version string below is the highest of all those in roles' metadata:
+    # "min_ansible_version". It needs to be kept manually up-to-date.
+    - name: Verify Ansible meets min required version
+      assert:
+        that: "ansible_version.full is version_compare('2.8', '>=')"
+        msg: >
+          "You must update Ansible to at least 2.8 to use this version of Pulp 3 Installer."
   roles:
     - pulp-database
     - pulp-workers

playbooks/user-sandbox.yml

@@ -8,6 +8,13 @@
     - include_vars: "{{ item }}"
       with_first_found: "{{ paths_to_vars_files }}"
 
+    # The version string below is the highest of all those in roles' metadata:
+    # "min_ansible_version". It needs to be kept manually up-to-date.
+    - name: Verify Ansible meets min required version
+      assert:
+        that: "ansible_version.full is version_compare('2.8', '>=')"
+        msg: >
+          "You must update Ansible to at least 2.8 to use this version of Pulp 3 Installer."
   roles:
     - pulp-database
     - pulp-workers