Move dockerfiles to a docker/ directory

Makefile

@@ -40,14 +40,12 @@ ci:
 # lint runs the linter.
 .PHONY: lint
 lint:
-	chmod +rwx scripts/*.sh
 	scripts/lint.sh
 
 # fmt runs the formatter.
 .PHONY: fmt
 fmt:
-	docker build -t gofumpt -f scripts/fmt.Dockerfile .
-	docker run -t -v $(PWD):/app gofumpt
+	./scripts/fmt.sh
 
 # add-license adds the license to all the top of all the .go files.
 .PHONY: add-license

docker-compose.yml

@@ -12,22 +12,20 @@ services:
   ci:
     build:
       context: .
-      dockerfile: scripts/ci.Dockerfile
+      dockerfile: docker/ci.Dockerfile
     networks:
       - mongo_network
       - postgres_network
 
-
   lint:
     build:
       context: .
-      dockerfile: scripts/lint.Dockerfile
+      dockerfile: docker/lint.Dockerfile
 
-# This is not currently being used in the Makefile.
   fmt:
     build:
       context: .
-      dockerfile: scripts/fmt.Dockerfile
+      dockerfile: docker/fmt.Dockerfile
     volumes:
       - .:/app
 

scripts/fmt.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+docker-compose -f "docker-compose.yml" up -d \
+    --remove-orphans \
+    --force-recreate \
+    --build fmt
+
+docker-compose -f docker-compose.yml run --rm fmt