Build images with matrix

.github/workflows/cd.yml

@@ -10,7 +10,18 @@ jobs:
     permissions:
       packages: write
       contents: read
-
+    strategy:
+      fail-fast: false
+      matrix:
+        image:
+          - name: 'ubuntu:18.04'
+            suffix: '-ubuntu18.04'
+          - name: 'ubuntu:20.04'
+            suffix: '-ubuntu20.04'
+          - name: 'ubuntu:22.04'
+            suffix: '-ubuntu22.04'
+          - name: 'ubuntu:latest'
+            suffix: ''
     steps:
       - uses: actions/checkout@v3
 
@@ -35,6 +46,7 @@ jobs:
         uses: docker/build-push-action@v4
         with:
           push: true
-          build-args:
-            - VERSION=${{ steps.set-version.outputs.VERSION }}
-          tags: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ steps.set-version.outputs.VERSION }}
+          build-args: |
+            VERSION=${{ steps.set-version.outputs.VERSION }}
+            APP_IMAGE=${{ matrix.app_image }}
+          tags: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ steps.set-version.outputs.VERSION }}${{ matrix.image.suffix }}

Dockerfile

@@ -1,12 +1,11 @@
+ARG APP_IMAGE=ubuntu:latest
+
 # Build
 FROM --platform=$BUILDPLATFORM golang:1.21-alpine AS build
 
 ARG VERSION
 ARG BUILD_TIME
 
-RUN apk update
-RUN apk add git
-
 WORKDIR /file.d
 
 COPY go.mod go.sum ./
@@ -25,7 +24,7 @@ RUN go build -trimpath \
     -o file.d ./cmd/file.d
 
 # Deploy
-FROM ubuntu:20.04
+FROM $APP_IMAGE
 
 RUN apt update
 RUN apt install systemd strace tcpdump traceroute telnet iotop curl jq iputils-ping htop -y