Add miniflux deployment

Contains default credentials but these should be overwritten with
group or host -destined variables.

Add default credentials

Hide real credential files from git

roles/miniflux/defaults/main.yml

@@ -0,0 +1,16 @@
+---
+
+miniflux_version: latest
+
+miniflux_upstream_file_dir: "{{ docker_stack_files_dir }}/{{ stack_name }}"
+
+miniflux_use_https: true
+
+# the subdomain link miniflux will be reachable under
+subdomain_alias: rss
+
+# Should ideally be overwritten in encrypted group/host vars
+miniflux_admin_username: MyAdmin
+miniflux_admin_password: MyPassword
+miniflux_postgres_user: MyPostgresUser
+miniflux_postgres_password: MyPostgresPassword