feat(gotosocial): add ansible role for deployment using docker

roles/gotosocial/README.md

@@ -0,0 +1,24 @@
+# `finallycoffee.fediverse.gotosocial` ansible role
+
+
+## Configuration
+
+### Built-in LetsEncrypt client
+
+To use the built-in letsencrypt client, set `gotosocial_config_letsencrypt_enabled: true`.
+
+You are required to fill in a valid administrative email address into
+`gotosocial_config_letsencrypt_email_address`.
+
+The port letsencrypt will listen on defaults to `80` and can be set using
+`gotosocial_config_letsencrypt_port` (if f.ex. the container lacks the permission
+to bind to ports < 1024). Note that when `gotosocial_config_letsencrypt_enabled` is
+`true`, the `gotosocial_config_letsencrypt_port` will by default be mapped to
+_host_ port 80 on all interfaces!
+
+This is fine when this is the only ACME client and allows easily changing
+`gotosocial_config_letsencrypt_port` without breaking any functionality,
+but with multiple acme clients all performing HTTP-01 challenges, you need to manually
+overwrite `gotosocial_container_ports` to fit your needs.
+
+### Advanced configuration