From e266ea760f98a34dd1be5996bf482c4af60dfcbc Mon Sep 17 00:00:00 2001
From: John Bampton <jbampton@gmail.com>
Date: Tue, 12 Mar 2024 04:20:41 +1000
Subject: [PATCH] super-linter: validate the `Dockerfile` with `hadolint`

https://github.com/super-linter/super-linter?tab=readme-ov-file#configure-super-linter

https://github.com/hadolint/hadolint

https://github.com/hadolint/hadolint?tab=readme-ov-file#configure

https://github.com/hadolint/hadolint/wiki/DL3042
---
 .github/linters/.hadolint.yaml     | 4 ++++
 .github/workflows/super-linter.yml | 1 +
 Dockerfile                         | 2 +-
 3 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 .github/linters/.hadolint.yaml

diff --git a/.github/linters/.hadolint.yaml b/.github/linters/.hadolint.yaml
new file mode 100644
index 000000000..b418cc387
--- /dev/null
+++ b/.github/linters/.hadolint.yaml
@@ -0,0 +1,4 @@
+failure-threshold: info
+ignored:
+  - DL3008 # https://github.com/hadolint/hadolint/wiki/DL3008
+  - DL3013 # https://github.com/hadolint/hadolint/wiki/DL3013
diff --git a/.github/workflows/super-linter.yml b/.github/workflows/super-linter.yml
index ed63fbe36..be78055c0 100644
--- a/.github/workflows/super-linter.yml
+++ b/.github/workflows/super-linter.yml
@@ -24,6 +24,7 @@ jobs:
         env:
           VALIDATE_BASH: true
           # VALIDATE_BASH_EXEC: true
+          VALIDATE_DOCKERFILE_HADOLINT: true
           # VALIDATE_EDITORCONFIG: true
           VALIDATE_GITLEAKS: true
           # VALIDATE_SHELL_SHFMT: true
diff --git a/Dockerfile b/Dockerfile
index c4419b4f6..34936c937 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,6 +8,6 @@ WORKDIR /app
 
 COPY Gemfile Gemfile.lock .pre-commit-config.yaml ./
 
-RUN bundle install && pip3 install pre-commit && git init . && pre-commit install-hooks
+RUN bundle install && pip3 install --no-cache-dir pre-commit && git init . && pre-commit install-hooks
 
 COPY . .