Add libreoffice microservice (#8)

* Add libreoffice microservice

* fixup dockerfile

* Use context during build to match Dockerfile expectations

.github/workflows/build-push.yml

@@ -41,15 +41,13 @@ jobs:
         # aka base build
         if [ ${{ inputs.dockerFile }} == "Dockerfile" ]; then
           echo "image=scyllaridae" >> $GITHUB_OUTPUT
+          echo "context=." >> $GITHUB_OUTPUT
           exit 0
         fi
 
-        # put the YML file in place so it's copied into the Docker container
         DIR=$(dirname "${{ inputs.dockerFile }}")
-        cp ./$DIR/scyllaridae.yml .
-        # name the docker image after the folder name prefixed by scyllaridae
-        # e.g. scyllaridae-curl
         echo "image=scyllaridae-$(basename $DIR)" >> $GITHUB_OUTPUT
+        echo "context=$DIR" >> $GITHUB_OUTPUT
       id: setup
 
     - id: 'auth'
@@ -71,8 +69,7 @@ jobs:
     - name: Build and push
       uses: docker/build-push-action@v5
       with:
-        context: .
-        file: ${{ inputs.dockerFile }}
+        context: ${{steps.setup.outputs.context}}
         build-args: |
           TAG=${{steps.extract_branch.outputs.branch}}
           DOCKER_REPOSITORY=us-docker.pkg.dev/${{ secrets.GCLOUD_PROJECT }}/public

docker-images/libreoffice/Dockerfile

@@ -0,0 +1,12 @@
+ARG TAG=main
+ARG DOCKER_REPOSITORY=local
+FROM ${DOCKER_REPOSITORY}/scyllaridae:${TAG} AS scyllaridae
+
+COPY scyllaridae.yml /app/
+COPY docker-entrypoint.sh /app/
+
+RUN apk update && \
+  apk add --no-cache \
+    openjdk17-jre==17.0.11_p9-r0 \
+    libreoffice==7.6.3.1-r0 \
+    ttf-dejavu==2.37-r5

docker-images/libreoffice/docker-entrypoint.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+# take input from stdin and print to stdout
+
+set -eou pipefail
+
+input_temp=$(mktemp /tmp/libreoffice-input-XXXXXX)
+
+cat > "$input_temp"
+
+libreoffice --headless --convert-to pdf "$input_temp" > /dev/null 2>&1
+
+PDF="$(basename "$input_temp").pdf"
+cat "/app/$PDF"
+
+rm "$input_temp" "/app/$PDF"

docker-images/libreoffice/scyllaridae.yml

@@ -0,0 +1,10 @@
+allowedMimeTypes:
+  - "application/msword"
+  - "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
+  - "application/vnd.ms-powerpoint"
+  - "application/vnd.openxmlformats-officedocument.presentationml.presentation"
+  - "application/vnd.ms-excel"
+  - "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
+cmdByMimeType:
+  default:
+    cmd: /app/docker-entrypoint.sh