feat: use pre-built fpm container image

.github/workflows/build-packages.yml

@@ -19,6 +19,15 @@ jobs:
         with:
           name: package-parts-linuxmusl-x86-64
           path: agent/native/_build/linuxmusl-x86-64-release/
+
+      - uses: elastic/apm-pipeline-library/.github/actions/docker-login@current
+        with:
+          registry: docker.elastic.co
+          secret: secret/observability-team/ci/docker-registry/prod
+          url: ${{ secrets.VAULT_ADDR }}
+          roleId: ${{ secrets.VAULT_ROLE_ID }}
+          secretId: ${{ secrets.VAULT_SECRET_ID }}
+
       - name: package
         run: make -C packaging package
       - name: package info

packaging/Dockerfile

@@ -1,17 +1,4 @@
-FROM ruby:3.3.0-alpine3.18
-
-ENV FPM_VERSION 1.15.1
-RUN apk add --no-cache \
-    alpine-sdk make cpio curl libarchive-tools make php-pear \
-    python3 py3-virtualenv py3-setuptools py3-pip \
-    rpm unzip xz git tar dpkg \
-  && ln -sf python3 /usr/bin/python \
-  && gem install --no-document fpm -v ${FPM_VERSION}
-
-## Fix fpm issue, see https://github.com/jordansissel/fpm/issues/1227
-ADD fpm_apm.patch /tmp
-RUN (cd /usr/local/bundle/gems/fpm-${FPM_VERSION}/ ; patch -p 1 < /tmp/fpm_apm.patch ) \
-    && rm -f /tmp/fpm_apk.patch
+FROM docker.elastic.co/observability-ci/fpm:latest
 
 COPY create-package.sh /bin
 WORKDIR /app