adds dockerfile

Dockerfile

@@ -0,0 +1,31 @@
+FROM registry.access.redhat.com/ubi8/python-38 AS demo
+
+COPY ./ /trestle-bot
+
+WORKDIR /trestle-bot
+
+USER root
+
+# Install dependencies
+RUN  python3.8 -m pip install --upgrade pipx \
+     && pipx install poetry==1.5.1 \
+     && poetry config virtualenvs.create false \
+     && poetry install --without tests,dev
+
+RUN  chown -HR 1001:1001 /trestle-bot \
+     chown -HR 1001:1001 /opt/app-root/src/
+
+USER 1001
+
+ENTRYPOINT poetry run trestle-bot \
+           --markdown-path="${MARKDOWN_PATH}" \
+           --assemble-model="${ASSEMBLE_MODEL}" \
+           --ssp-index-path="${SSP_INDEX_PATH}" \
+           --commit-message="${COMMIT_MESSAGE}" \
+           --branch="${BRANCH}" \
+           --patterns="${PATTERNS}" \
+           --committer-name="${COMMIT_USER_NAME}" \
+           --committer-email="${COMMIT_USER_EMAIL}" \
+           --author-name="${AUTHOR_NAME}" \
+           --author-email="${AUTHOR_EMAIL}" \
+           --working-dir="${WORKING_DIR}"

action.yml

@@ -48,8 +48,19 @@ inputs:
 
 runs:
   using: "docker"
-  image: "REPLACE_ME"
-
+  image: "Dockerfile"
+  env:
+    MARKDOWN_PATH: ${{ inputs.markdown_path }}
+    ASSEMBLE_MODEL: ${{ inputs.assemble_model }}
+    SSP_INDEX_PATH: ${{ inputs.ssp_index_path }}
+    COMMIT_MESSAGE: ${{ inputs.commit_message }}
+    BRANCH: ${{ inputs.branch }}
+    PATTERNS: ${{ inputs.file_pattern }}
+    COMMIT_USER_NAME: ${{ inputs.commit_user_name }}
+    COMMIT_USER_EMAIL: ${{ inputs.commit_user_email }}
+    COMMIT_AUTHOR_NAME: ${{ inputs.commit_author_name }}
+    COMMIT_AUTHOR_EMAIL: ${{ inputs.commit_author_email }}
+    REPOSITORY: ${{ inputs.repository }}
 branding:
   icon: "check"
   color: "green"