Add Dockerfile templating capability

.dockerignore

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+*
+!entrypoint.sh

dockerfiles/4.5.2-tp.1/Dockerfile

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+# syntax=docker/dockerfile:1
+
+################################################################
+#                                                              #
+#  WARNING: THIS FILE IS AUTO-GENERATED. DO NOT EDIT MANUALLY  #
+#                                                              #
+################################################################
+
+ARG CREATED_AT
+
+FROM alpine:3.21.3 AS downloader
+
+WORKDIR /opt
+
+# Download Open Integration Engine release
+RUN apk add --no-cache curl \
+    && curl -L \
+      -o /opt/engine.tar.gz \
+      -H "Accept: application/vnd.github+json" \
+      -H "X-GitHub-Api-Version: 2022-11-28" \
+       https://github.com/OpenIntegrationEngine/engine/releases/download/v4.5.2-tp.1/oie_unix_4_5_2.tar.gz \
+    && tar xzf engine.tar.gz \
+    && mv /opt/oie /opt/engine \
+    && mkdir -p /opt/engine/appdata
+
+WORKDIR /opt/engine
+COPY --chmod=755 entrypoint.sh /opt/engine/entrypoint.sh
+
+RUN rm -rf cli-lib manager-lib \
+    && rm mirth-cli-launcher.jar oiecommand
+FROM eclipse-temurin:17.0.15_6-jre-noble AS ubuntu-jre
+
+ARG CREATED_AT
+
+LABEL \
+  "org.opencontainers.image.authors"="The Open Integration Engine Project and contributors" \
+  "org.opencontainers.image.created"="${CREATED_AT?:}" \
+  "org.opencontainers.image.description"="An open source fork of the now closed-source Mirth Connect" \
+  "org.opencontainers.image.licenses"="MPL-2.0" \
+  "org.opencontainers.image.source"="https://github.com/OpenIntegrationEngine/engine-docker" \
+  "org.opencontainers.image.title"="Open Integration Engine" \
+  "org.opencontainers.image.url"="https://github.com/OpenIntegrationEngine/engine" \
+  "org.opencontainers.image.vendor"="The Open Integration Engine Project" \
+  "org.opencontainers.image.version"="4.5.2-tp.1"
+
+COPY --from=downloader --chown=1000:1000 /opt/engine /opt/engine
+
+RUN apt-get update \
+    && apt-get install -y unzip \
+    && rm -rf /var/lib/apt/lists/* \
+    && groupmod --new-name engine ubuntu \
+    && usermod -l engine ubuntu \
+    && usermod -aG engine engine
+
+VOLUME /opt/engine/appdata
+VOLUME /opt/engine/custom-extensions
+
+WORKDIR /opt/engine
+EXPOSE 8443
+USER engine
+
+ENTRYPOINT ["./entrypoint.sh"]
+CMD ["./oieserver"]
+
+FROM eclipse-temurin:17.0.15_6-jdk-noble AS ubuntu-jdk
+
+ARG CREATED_AT
+
+LABEL \
+  "org.opencontainers.image.authors"="The Open Integration Engine Project and contributors" \
+  "org.opencontainers.image.created"="${CREATED_AT?:}" \
+  "org.opencontainers.image.description"="An open source fork of the now closed-source Mirth Connect" \
+  "org.opencontainers.image.licenses"="MPL-2.0" \
+  "org.opencontainers.image.source"="https://github.com/OpenIntegrationEngine/engine-docker" \
+  "org.opencontainers.image.title"="Open Integration Engine" \
+  "org.opencontainers.image.url"="https://github.com/OpenIntegrationEngine/engine" \
+  "org.opencontainers.image.vendor"="The Open Integration Engine Project" \
+  "org.opencontainers.image.version"="4.5.2-tp.1"
+
+COPY --from=downloader --chown=1000:1000 /opt/engine /opt/engine
+
+RUN apt-get update \
+    && apt-get install -y unzip \
+    && rm -rf /var/lib/apt/lists/* \
+    && groupmod --new-name engine ubuntu \
+    && usermod -l engine ubuntu \
+    && usermod -aG engine engine
+
+VOLUME /opt/engine/appdata
+VOLUME /opt/engine/custom-extensions
+
+WORKDIR /opt/engine
+EXPOSE 8443
+USER engine
+
+ENTRYPOINT ["./entrypoint.sh"]
+CMD ["./oieserver"]
+
+FROM eclipse-temurin:17.0.15_6-jre-alpine AS alpine-jre
+
+ARG CREATED_AT
+
+LABEL \
+  "org.opencontainers.image.authors"="The Open Integration Engine Project and contributors" \
+  "org.opencontainers.image.created"="${CREATED_AT?:}" \
+  "org.opencontainers.image.description"="An open source fork of the now closed-source Mirth Connect" \
+  "org.opencontainers.image.licenses"="MPL-2.0" \
+  "org.opencontainers.image.source"="https://github.com/OpenIntegrationEngine/engine-docker" \
+  "org.opencontainers.image.title"="Open Integration Engine" \
+  "org.opencontainers.image.url"="https://github.com/OpenIntegrationEngine/engine" \
+  "org.opencontainers.image.vendor"="The Open Integration Engine Project" \
+  "org.opencontainers.image.version"="4.5.2-tp.1"
+
+COPY --from=downloader --chown=1000:1000 /opt/engine /opt/engine
+
+RUN apk add --no-cache bash unzip \
+    && adduser -D -H -u 1000 engine engine
+
+VOLUME /opt/engine/appdata
+VOLUME /opt/engine/custom-extensions
+
+WORKDIR /opt/engine
+EXPOSE 8443
+USER engine
+
+ENTRYPOINT ["./entrypoint.sh"]
+CMD ["./oieserver"]
+
+FROM eclipse-temurin:17.0.15_6-jdk-alpine AS alpine-jdk
+
+ARG CREATED_AT
+
+LABEL \
+  "org.opencontainers.image.authors"="The Open Integration Engine Project and contributors" \
+  "org.opencontainers.image.created"="${CREATED_AT?:}" \
+  "org.opencontainers.image.description"="An open source fork of the now closed-source Mirth Connect" \
+  "org.opencontainers.image.licenses"="MPL-2.0" \
+  "org.opencontainers.image.source"="https://github.com/OpenIntegrationEngine/engine-docker" \
+  "org.opencontainers.image.title"="Open Integration Engine" \
+  "org.opencontainers.image.url"="https://github.com/OpenIntegrationEngine/engine" \
+  "org.opencontainers.image.vendor"="The Open Integration Engine Project" \
+  "org.opencontainers.image.version"="4.5.2-tp.1"
+
+COPY --from=downloader --chown=1000:1000 /opt/engine /opt/engine
+
+RUN apk add --no-cache bash unzip \
+    && adduser -D -H -u 1000 engine engine
+
+VOLUME /opt/engine/appdata
+VOLUME /opt/engine/custom-extensions
+
+WORKDIR /opt/engine
+EXPOSE 8443
+USER engine
+
+ENTRYPOINT ["./entrypoint.sh"]
+CMD ["./oieserver"]

dockerfiles/4.5.2-tp.1/compose.yaml

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+################################################################
+#                                                              #
+#  WARNING: THIS FILE IS AUTO-GENERATED. DO NOT EDIT MANUALLY  #
+#                                                              #
+################################################################
+
+name: open-integration-engine
+
+services:
+    ubuntu-jre:
+      image: openintegrationengine/engine
+      build:
+        dockerfile: dockerfiles/4.5.2-tp.1/Dockerfile
+        target: ubuntu-jre
+        context: ../../
+        platforms:
+          - linux/amd64
+    #      - linux/arm64
+        tags:
+          - openintegrationengine/engine:4.5.2-tp.1-ubuntu
+          - openintegrationengine/engine:4.5.2-tp.1-ubuntu-jre
+          - openintegrationengine/engine:latest-ubuntu-jre
+          - openintegrationengine/engine:latest-ubuntu
+
+    ubuntu-jdk:
+      image: openintegrationengine/engine
+      build:
+        dockerfile: dockerfiles/4.5.2-tp.1/Dockerfile
+        target: ubuntu-jdk
+        context: ../../
+        platforms:
+          - linux/amd64
+    #      - linux/arm64
+        tags:
+          - openintegrationengine/engine:4.5.2-tp.1-ubuntu
+          - openintegrationengine/engine:4.5.2-tp.1-ubuntu-jdk
+          - openintegrationengine/engine:latest-ubuntu-jdk
+
+    alpine-jre:
+      image: openintegrationengine/engine
+      build:
+        dockerfile: dockerfiles/4.5.2-tp.1/Dockerfile
+        target: alpine-jre
+        context: ../../
+        platforms:
+          - linux/amd64
+    #      - linux/arm64
+        tags:
+          - openintegrationengine/engine:4.5.2-tp.1-alpine
+          - openintegrationengine/engine:4.5.2-tp.1-alpine-jre
+          - openintegrationengine/engine:latest-alpine-jre
+          - openintegrationengine/engine:latest-alpine
+          - openintegrationengine/engine:latest
+
+    alpine-jdk:
+      image: openintegrationengine/engine
+      build:
+        dockerfile: dockerfiles/4.5.2-tp.1/Dockerfile
+        target: alpine-jdk
+        context: ../../
+        platforms:
+          - linux/amd64
+    #      - linux/arm64
+        tags:
+          - openintegrationengine/engine:4.5.2-tp.1-alpine
+          - openintegrationengine/engine:4.5.2-tp.1-alpine-jdk
+          - openintegrationengine/engine:latest-alpine-jdk
+

releases.yaml

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+# Specifies which slug should gain the "latest" tags
+latest: 4.5.2-tp.1
+
+# Sets the alpine image tag for the downloader stage
+downloaderTag: 3.21.3
+
+uid: 1000
+gid: 1000
+
+# Add OCI best-practice labels https://github.com/opencontainers/image-spec/blob/main/annotations.md#pre-defined-annotation-keys
+labels: |-
+  "org.opencontainers.image.authors"="The Open Integration Engine Project and contributors" \
+  "org.opencontainers.image.created"="${CREATED_AT?:}" \
+  "org.opencontainers.image.description"="An open source fork of the now closed-source Mirth Connect" \
+  "org.opencontainers.image.licenses"="MPL-2.0" \
+  "org.opencontainers.image.source"="https://github.com/OpenIntegrationEngine/engine-docker" \
+  "org.opencontainers.image.title"="Open Integration Engine" \
+  "org.opencontainers.image.url"="https://github.com/OpenIntegrationEngine/engine" \
+  "org.opencontainers.image.vendor"="The Open Integration Engine Project" \
+  "org.opencontainers.image.version"="{{ .slug }}"
+
+versions:
+  - slug: 4.5.2-tp.1
+    releaseVersion: 4.5.2
+    releaseUrl: https://github.com/OpenIntegrationEngine/engine/releases/download/v4.5.2-tp.1/oie_unix_4_5_2.tar.gz
+    tags:
+      - distro: ubuntu
+        type: jre
+        tag: 17.0.15_6-jre-noble
+      - distro: ubuntu
+        type: jdk
+        tag: 17.0.15_6-jdk-noble
+      - distro: alpine
+        type: jre
+        tag: 17.0.15_6-jre-alpine
+      - distro: alpine
+        type: jdk
+        tag: 17.0.15_6-jdk-alpine

render_docker_images.sh

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+# Render Dockerfiles
+gomplate -V -c .=releases.yaml -f templates/Dockerfile.tpl
+
+# Render compose files
+gomplate -V -c .=releases.yaml -f templates/compose.yaml.tpl

templates/Dockerfile.tpl

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+{{/* Collect all root elements except "versions" into a variable */}}
+{{- $config := coll.Omit "versions" . -}}
+
+{{/* Create gomplate specific iteration over versions array */}}
+{{- range $version := .versions -}}
+  {{- $ctx := dict "config" $config "version" $version }}
+
+  {{/* Define paths to render the Dockerfiles to */}}
+  {{- $outPath := printf "dockerfiles/%s/Dockerfile" $version.slug }}
+
+  {{/* Render the inline template defined below */}}
+  {{- tmpl.Exec "dockerfile" $ctx | file.Write $outPath }}
+{{- end -}}
+
+{{- define "dockerfile" -}}
+# syntax=docker/dockerfile:1
+
+################################################################
+#                                                              #
+#  WARNING: THIS FILE IS AUTO-GENERATED. DO NOT EDIT MANUALLY  #
+#                                                              #
+################################################################
+
+ARG CREATED_AT
+
+FROM alpine:{{ .config.downloaderTag }} AS downloader
+
+WORKDIR /opt
+
+# Download Open Integration Engine release
+RUN apk add --no-cache curl \
+    && curl -L \
+      -o /opt/engine.tar.gz \
+      -H "Accept: application/vnd.github+json" \
+      -H "X-GitHub-Api-Version: 2022-11-28" \
+       {{ .version.releaseUrl }} \
+    && tar xzf engine.tar.gz \
+    && mv /opt/oie /opt/engine \
+    && mkdir -p /opt/engine/appdata
+
+WORKDIR /opt/engine
+COPY --chmod=755 entrypoint.sh /opt/engine/entrypoint.sh
+
+RUN rm -rf cli-lib manager-lib \
+    && rm mirth-cli-launcher.jar oiecommand
+
+{{- /* Assign current version slug into a variable to carry it into the tags iteration */}}
+{{- $slug := dict "slug" .version.slug -}}
+{{/* Iterate version tags to generate the final stages */}}
+{{- range .version.tags }}
+FROM eclipse-temurin:{{ .tag }} AS {{ print .distro "-" .type }}
+
+ARG CREATED_AT
+
+LABEL \
+{{/* Render the Labels section to include the slug */}}
+{{- tpl $.config.labels $slug | strings.Indent 2 }}
+
+COPY --from=downloader --chown={{ $.config.uid }}:{{ $.config.gid }} /opt/engine /opt/engine
+{{ if eq .distro "ubuntu" }}
+RUN apt-get update \
+    && apt-get install -y unzip \
+    && rm -rf /var/lib/apt/lists/* \
+    && groupmod --new-name engine ubuntu \
+    && usermod -l engine ubuntu \
+    && usermod -aG engine engine
+{{- else if eq .distro "alpine" }}
+RUN apk add --no-cache bash unzip \
+    && adduser -D -H -u {{ $.config.uid }} engine engine
+{{- end }}
+
+VOLUME /opt/engine/appdata
+VOLUME /opt/engine/custom-extensions
+
+WORKDIR /opt/engine
+EXPOSE 8443
+USER engine
+
+ENTRYPOINT ["./entrypoint.sh"]
+CMD ["./oieserver"]
+{{ end -}}
+
+{{ end }}