diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
index 033bab2..b6d569d 100644
--- a/.github/workflows/pre-commit.yml
+++ b/.github/workflows/pre-commit.yml
@@ -34,6 +34,10 @@ jobs:
         if: ${{ failure() }}
         run: |
           python ${LOG_TO_CS} ${RAW_LOG} ${CS_XML}
+      - name: Convert Raw Log to Checkstyle format
+        if: ${{ failure() }}
+        in: ${{ env.RAW_LOG }}
+        out: ${{ env.CS_XML }}
       - name: Annotate Source Code with Messages
         uses: staabm/annotate-pull-request-from-checkstyle-action@v1
         if: ${{ failure() }}
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..e69d8ba
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,10 @@
+# Container running the action
+FROM python:3.11-slim-bookworm
+
+RUN pip install expr
+# Copy entry point
+COPY entrypoint.sh /entrypoint.sh
+COPY logToCs.py    /logToCs.py
+
+# Code file to execute when the docker container starts up (`entrypoint.sh`)
+ENTRYPOINT ["/entrypoint.sh"]
diff --git a/action.yml b/action.yml
new file mode 100644
index 0000000..91fc47d
--- /dev/null
+++ b/action.yml
@@ -0,0 +1,23 @@
+--- action.yml
+...
+---
+name: logToCheckStyle
+description: Greet someone and record the time
+inputs:
+  in:
+    description: Source log path
+    required: true
+  out:
+    description: Target path
+    required: true
+  root:
+    description: Prefix to remove from paths in log
+    required: false
+    default:
+# outputs:
+#  outpath:  # id of output
+#    description: The the output path
+runs:
+  using: docker
+  image: Dockerfile
+  args: ['${{ inputs.in }}', '${{ inputs.out }}', '${{ inputs.root }}']
diff --git a/entrypoint.sh b/entrypoint.sh
new file mode 100755
index 0000000..2da66fb
--- /dev/null
+++ b/entrypoint.sh
@@ -0,0 +1,3 @@
+#!/bin/bash -l
+[ "$3" = ""  ] && /logToCs.py "$1" "$2" --root "$PWD"
+[ "$3" != "" ] && /logToCs.py "$1" "$2" --root "$3"