From 96e53d68bbf6736e150e1ddbd51636013c96d09d Mon Sep 17 00:00:00 2001
From: Ian Fijolek <ian@iamthefij.com>
Date: Tue, 19 May 2020 13:27:54 -0700
Subject: [PATCH] Add hadolint

---
 .pre-commit-hooks.yaml | 17 +++++++++++++++--
 README.md              |  6 ++++++
 hooks.yaml             |  7 -------
 3 files changed, 21 insertions(+), 9 deletions(-)
 delete mode 100644 hooks.yaml

diff --git a/.pre-commit-hooks.yaml b/.pre-commit-hooks.yaml
index 7f3f1a2..8fa4edd 100644
--- a/.pre-commit-hooks.yaml
+++ b/.pre-commit-hooks.yaml
@@ -1,6 +1,19 @@
+---
 - id: docker-compose-check
   name: Validate docker-compose files
-  description: Checks that vault files are encrypted
+  description: Checks that docker-compose files are valid
+  language: script
   entry: compose-check.sh
   files: docker-compose.y[a]{0,1}ml$
-  language: script
+- id: hadolint
+  name: Lint Dockerfiles
+  description: Runs hadolint Docker image to lint Dockerfiles
+  language: docker_image
+  entry: hadolint/hadolint hadolint
+  files: Dockerfile
+- id: hadolint-system
+  name: Lint Dockerfiles
+  description: Runs system hadolint to lint Dockerfiles
+  language: system
+  entry: hadolint
+  files: Dockerfile
diff --git a/README.md b/README.md
index 85ed4a8..f2abaa4 100644
--- a/README.md
+++ b/README.md
@@ -6,3 +6,9 @@ A set of [pre-commit](http://pre-commit.com) hooks for Docker services
 
 ### docker-compose-check
 Verifies that docker-compose files are valid by using `docker-compose config` to parse them.
+
+### hadolint
+Uses the [hadolint Docker image](https://hub.docker.com/hadolint/hadolint) to lint Dockerfiles.
+
+### hadolint-system
+Uses the whatever version of hadolint that you have installed to lint Dockerfiles. This requires you to have hadolint installed somewhere in your path.
diff --git a/hooks.yaml b/hooks.yaml
deleted file mode 100644
index 90504a8..0000000
--- a/hooks.yaml
+++ /dev/null
@@ -1,7 +0,0 @@
----
-- id: docker-compose-check
-  name: Validate docker-compose files
-  description: Checks that docker-compose files are valid
-  entry: compose-check.sh
-  files: docker-compose.y[a]{0,1}ml$
-  language: script