Set up

.gitea/workflows/create-and-publish.yml

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+name: Create and publish container
+on:
+  push
+jobs:
+  build_container:
+    runs_on: ubuntu-latest
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v6
+        with:
+          ref: main
+      - name: Build and upload image
+        run: |
+          docker login -u ${{ variables.REGISTRY_USER_USERNAME }} -p ${{ secrets.REGISTRY_USER_PASSWORD }}
+          ./build-image.sh ${{ variables.REGISTRY_URL }}

Dockerfile

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+FROM alpine
+
+WORKDIR /root
+
+RUN apk add texlive texlive-bibtexextra texlive-context texlive-dvi texlive-fontutils texmf-dist-langgerman texlive-latexextra texlive-latexrecommended texlive-mathscience texlive-pictures texlive-plaingeneric texlive-pstricks
+
+COPY entrypoint.sh /root/
+RUN chmod +x /root/entrypoint.sh
+
+ENTRYPOINT [ "/root/entrypoint.sh" ]

LICENSE

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+MIT License
+
+Copyright (c) 2025 janishutz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
+associated documentation files (the "Software"), to deal in the Software without restriction, including 
+without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
+copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the 
+following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial 
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO 
+EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# latex-build
+
+Docker resources to build a docker image to compile latex files in gitea CI
+
+## Usage
+Build the docker image using
+```bash
+./build-image.sh your-image-name
+```
+You can then run the image using
+```bash
+docker run --name container-name -v /path/to/latex/build/dir/on/host:/root/data your-image-name:latest
+```
+The arguments that can be passed to the container are the following (in order):
+1. Extra arguments for `latexmk` (you can also use this to provide the entry file)
+2. Extra packages (alpine linux) to install in the container

build-image.sh

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+#!/bin/sh
+
+docker buildx build . -t "$1"
+docker push "$1"

entrypoint.sh

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+#!/bin/sh
+
+set -e
+
+EXTRA_ARGS="$1"
+EXTRA_PKGS="$2"
+
+if [ -n "$EXTRA_PKGS" ]; then
+  for pkg in $EXTRA_PKGS; do
+    echo "Install $pkg by apk"
+    apk add "$pkg"
+  done
+fi
+
+cd /root/data
+
+if [ -n "$WORKING_DIR" ]; then
+    cd "$WORKING_DIR"
+fi
+
+echo "Runner started, will run latexmk with extra args $EXTRA_ARGS"
+
+latexmk -pdf $EXTRA_ARGS