diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -155,12 +155,13 @@
 ## Integrations
 
 To get most of `hadolint` it is useful to integrate it as a check to your CI
-or to your editor to lint your `Dockerfile` as you write it. See our
-[Integration][] docs.
+or to your editor, or as a pre-commit hook, to lint your `Dockerfile` as you
+write it. See our [Integration][] docs.
 
 - [Code Review Platform Integrations][]
 - [Continuous Integrations][]
 - [Editor Integrations][]
+- [Version Control Integrations][]
 
 ## Rules
 
@@ -335,6 +336,7 @@
 [code review platform integrations]: docs/INTEGRATION.md#code-review
 [continuous integrations]: docs/INTEGRATION.md#continuous-integration
 [editor integrations]: docs/INTEGRATION.md#editors
+[version control integrations]: docs/INTEGRATION.md#version-control
 [create an issue]: https://github.com/hadolint/hadolint/issues/new
 [dockerfile reference]: http://docs.docker.com/engine/reference/builder/
 [syntax.hs]: https://www.stackage.org/haddock/nightly-2018-01-07/language-docker-2.0.1/Language-Docker-Syntax.html
diff --git a/app/Main.hs b/app/Main.hs
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -51,6 +51,7 @@
 toOutputFormat "json" = Just Hadolint.Json
 toOutputFormat "tty" = Just Hadolint.TTY
 toOutputFormat "codeclimate" = Just Hadolint.CodeclimateJson
+toOutputFormat "gitlab_codeclimate" = Just Hadolint.GitlabCodeclimateJson
 toOutputFormat "checkstyle" = Just Hadolint.Checkstyle
 toOutputFormat "codacy" = Just Hadolint.Codacy
 toOutputFormat _ = Nothing
@@ -59,6 +60,7 @@
 showFormat Hadolint.Json = "json"
 showFormat Hadolint.TTY = "tty"
 showFormat Hadolint.CodeclimateJson = "codeclimate"
+showFormat Hadolint.GitlabCodeclimateJson = "gitlab_codeclimate"
 showFormat Hadolint.Checkstyle = "checkstyle"
 showFormat Hadolint.Codacy = "codacy"
 
@@ -87,10 +89,10 @@
         ( long "format"
             <> short 'f' -- options for the output format
             <> help
-              "The output format for the results [tty | json | checkstyle | codeclimate | codacy]"
+              "The output format for the results [tty | json | checkstyle | codeclimate | gitlab_codeclimate | codacy]"
             <> value Hadolint.TTY
             <> showDefaultWith showFormat -- The default value
-            <> completeWith ["tty", "json", "checkstyle", "codeclimate", "codacy"]
+            <> completeWith ["tty", "json", "checkstyle", "codeclimate", "gitlab_codeclimate", "codacy"]
         )
 
     ignoreList =
diff --git a/hadolint.cabal b/hadolint.cabal
--- a/hadolint.cabal
+++ b/hadolint.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 196183dccc95114462aa7b27a5c15b007a0aa09fdddf2c00d154df003854e6ad
+-- hash: b934b8b20c533c2e9d0f96fc7feae25791c0c02248f0116af5b43262a186afb8
 
 name:           hadolint
-version:        1.20.0
+version:        1.21.0
 synopsis:       Dockerfile Linter JavaScript API
 description:    A smarter Dockerfile linter that helps you build best practice Docker images.
 category:       Development
@@ -58,6 +58,7 @@
     , base >=4.8 && <5
     , bytestring
     , containers
+    , cryptonite
     , directory >=1.3.0
     , filepath
     , language-docker >=9.1.2 && <10
diff --git a/src/Hadolint/Formatter/Codeclimate.hs b/src/Hadolint/Formatter/Codeclimate.hs
--- a/src/Hadolint/Formatter/Codeclimate.hs
+++ b/src/Hadolint/Formatter/Codeclimate.hs
@@ -4,10 +4,12 @@
 
 module Hadolint.Formatter.Codeclimate
   ( printResult,
+    printGitlabResult,
     formatResult,
   )
 where
 
+import Crypto.Hash (Digest, SHA1 (..), hash)
 import Data.Aeson hiding (Result)
 import qualified Data.ByteString.Lazy as B
 import Data.Monoid ((<>))
@@ -29,6 +31,11 @@
     impact :: String
   }
 
+data FingerprintIssue = FingerprintIssue
+  { issue :: Issue,
+    fingerprint :: Digest SHA1
+  }
+
 data Location
   = LocLine
       String
@@ -61,6 +68,18 @@
         "severity" .= impact
       ]
 
+instance ToJSON FingerprintIssue where
+  toJSON FingerprintIssue {..} =
+    object
+      [ "type" .= ("issue" :: String),
+        "fingerprint" .= show fingerprint,
+        "check_name" .= checkName issue,
+        "description" .= description issue,
+        "categories" .= (["Bug Risk"] :: [String]),
+        "location" .= location issue,
+        "severity" .= impact issue
+      ]
+
 errorToIssue :: (VisualStream s, TraversableStream s, ShowErrorComponent e) => ParseErrorBundle s e -> Issue
 errorToIssue err =
   Issue
@@ -91,16 +110,28 @@
     InfoC -> "info"
     StyleC -> "minor"
 
+generateFingerprint :: Issue -> Digest SHA1
+generateFingerprint = hash . B.toStrict . encode
+
+issueToFingerprintIssue :: Issue -> FingerprintIssue
+issueToFingerprintIssue i =
+  FingerprintIssue
+    { issue = i,
+      fingerprint = generateFingerprint i
+    }
+
 formatResult :: (VisualStream s, TraversableStream s, ShowErrorComponent e) => Result s e -> Seq Issue
-formatResult (Result errors checks) = allIssues
-  where
-    allIssues = errorMessages <> checkMessages
-    errorMessages = fmap errorToIssue errors
-    checkMessages = fmap checkToIssue checks
+formatResult (Result errors checks) = (errorToIssue <$> errors) <> (checkToIssue <$> checks)
 
+formatGitlabResult :: (VisualStream s, TraversableStream s, ShowErrorComponent e) => Result s e -> Seq FingerprintIssue
+formatGitlabResult result = issueToFingerprintIssue <$> formatResult result
+
 printResult :: (VisualStream s, TraversableStream s, ShowErrorComponent e) => Result s e -> IO ()
 printResult result = mapM_ output (formatResult result)
   where
     output value = do
       B.putStr (encode value)
       B.putStr (B.singleton 0x00)
+
+printGitlabResult :: (VisualStream s, TraversableStream s, ShowErrorComponent e) => Result s e -> IO ()
+printGitlabResult = B.putStr . encode . formatGitlabResult
diff --git a/src/Hadolint/Lint.hs b/src/Hadolint/Lint.hs
--- a/src/Hadolint/Lint.hs
+++ b/src/Hadolint/Lint.hs
@@ -33,6 +33,7 @@
   = Json
   | TTY
   | CodeclimateJson
+  | GitlabCodeclimateJson
   | Checkstyle
   | Codacy
   deriving (Show, Eq)
@@ -50,6 +51,7 @@
         Json -> Json.printResult res
         Checkstyle -> Checkstyle.printResult res
         CodeclimateJson -> Codeclimate.printResult res >> exitSuccess
+        GitlabCodeclimateJson -> Codeclimate.printGitlabResult res >> exitSuccess
         Codacy -> Codacy.printResult res >> exitSuccess
 
 -- | Performs the process of parsing the dockerfile and analyzing it with all the applicable