Add ansible-lint drone config

.drone.yml

@@ -0,0 +1,9 @@
+---
+kind: pipeline
+type: docker
+name: ansible
+steps:
+  - name: ansible-lint
+    image: nixos/nix:2.11.0
+    commands:
+      - nix run -c ansible-lint ansible

ansible/README.md

@@ -2,10 +2,10 @@
 
 ## Ansible Control Node Setup
 
-In a Python 3 environment (perhaps a venv):
+Run in repository root to use `ansible-*` commands:
 
 ```
-pip install -r requirements.txt
+nix run -c $SHELL
 ```
 
 ## `misc.yaml`

ansible/ansible.cfg

@@ -1,2 +1,3 @@
 [defaults]
 inventory = ./inventory
+roles_path = ./roles

ansible/playbooks/misc-docker.yaml

@@ -24,7 +24,7 @@
     - name: Upload docker configuration
       become: yes
       copy:
-        src: ../docker
+        src: ../../docker
         dest: /etc/pbri
         # Files should inaccessible to non-root users.
         mode: u=rw,g=,o=

default.nix

@@ -0,0 +1,13 @@
+{
+  pkgs ? import <nixpkgs> {}
+}:
+let
+  paths = with pkgs; [
+    ansible
+    ansible-lint
+  ];
+in
+  pkgs.buildEnv {
+    name = "infrastructure-env";
+    paths = paths;
+  }