Drone updates

.drone.yml

@@ -1,25 +1,6 @@
-kind: pipeline
-name: tests
-
-trigger:
-  event:
-    - push
-    - tag
-
-steps:
-  - name: run tests
-    image: ubuntu:bionic
-    commands:
-      - apt-get update
-      - apt-get install -y make
-      - make test
-
 ---
 kind: pipeline
-name: linux-amd64
-
-depends_on:
-  - tests
+name: docker builds
 
 trigger:
   event:
@@ -30,84 +11,35 @@ trigger:
     - refs/tags/v*
 
 steps:
-  - name: get qemu
-    image: busybox
-    commands:
-      - sh ./get_qemu.sh x86_64
-
-  - name: build
+  - name: build amd64
     image: plugins/docker
     settings:
       repo: iamthefij/multiarch-pipeline-test
       auto_tag: true
-      auto_tag_suffix: linux-amd64
+      auto_tag_suffix: drone-amd64
       username:
         from_secret: docker_username
       password:
         from_secret: docker_password
-
----
-kind: pipeline
-name: linux-arm
-
-depends_on:
-  - tests
-
-trigger:
-  event:
-    - push
-    - tag
-  ref:
-    - refs/heads/master
-    - refs/tags/v*
-
-steps:
-  - name: get qemu
-    image: busybox
-    commands:
-      - sh ./get_qemu.sh arm
-
-  - name: build
+  - name: build arm32v7
     image: plugins/docker
     settings:
       repo: iamthefij/multiarch-pipeline-test
       auto_tag: true
-      auto_tag_suffix: linux-arm
+      auto_tag_suffix: drone-arm
       username:
         from_secret: docker_username
       password:
         from_secret: docker_password
       build_args:
         - ARCH=arm
-        - REPO=arm32v6
-
----
-kind: pipeline
-name: linux-arm64
-
-depends_on:
-  - tests
-
-trigger:
-  event:
-    - push
-    - tag
-  ref:
-    - refs/heads/master
-    - refs/tags/v*
-
-steps:
-  - name: get qemu
-    image: busybox
-    commands:
-      - sh ./get_qemu.sh aarch64
-
-  - name: build
+        - REPO=arm32v7
+  - name: build-arm64
     image: plugins/docker
     settings:
       repo: iamthefij/multiarch-pipeline-test
       auto_tag: true
-      auto_tag_suffix: linux-arm64
+      auto_tag_suffix: drone-arm64
       username:
         from_secret: docker_username
       password:
@@ -115,33 +47,13 @@ steps:
       build_args:
         - ARCH=aarch64
         - REPO=arm64v8
-
----
-kind: pipeline
-name: manifest
-
-depends_on:
-  - linux-amd64
-  - linux-arm
-  - linux-arm64
-
-trigger:
-  event:
-    - push
-    - tag
-  ref:
-    - refs/heads/master
-    - refs/tags/v*
-
-steps:
   - name: publish manifest
     image: plugins/manifest
     settings:
-      spec: manifest.tmpl
+      spec: drone-manifest.tmpl
       auto_tag: true
       ignore_missing: true
       username:
         from_secret: docker_username
       password:
         from_secret: docker_password
-

Dockerfile

@@ -2,11 +2,19 @@
 # The following will work with any library image that supports multi-arch
 # Other repositories may use tag suffix instead
 ARG REPO=library
+FROM multiarch/qemu-user-static:4.2.0-2 as qemu-user-static
+
+# On some systems, touching a dummy file in the /usr/bin dir doesn't work
+# and instead removes all files previously in the directory. Not sure why
+# this is happening. Moving everything to a different directory seems to
+# work fine though.
+RUN mkdir /qemu && touch /qemu/qemu-x86_64-dummy && cp /usr/bin/qemu-* /qemu/
+
 FROM ${REPO}/python:3-alpine
 
 # This should be the target qemu arch
 ARG ARCH=x86_64
-COPY ./build/qemu-${ARCH}-static /usr/bin/
+COPY --from=qemu-user-static /qemu/qemu-${ARCH}-* /usr/bin/
 
 # Everything below here is just a simple example
 

Makefile

@@ -7,28 +7,18 @@ default: test
 test:
 	@echo ok
 
-# Targets to download required qemu binaries for running on an amd64 machine
-build/qemu-x86_64-static:
-	./get_qemu.sh x86_64
-
-build/qemu-arm-static:
-	./get_qemu.sh arm
-
-build/qemu-aarch64-static:
-	./get_qemu.sh aarch64
-
 # Build Docker image for host architechture (amd64)
 .PHONY: build
-build: build/qemu-x86_64-static
+build:
 	docker build . -t ${DOCKER_TAG}-linux-amd64
 
 # Cross build for arm architechtures
 .PHONY: cross-build-arm
-cross-build-arm: build/qemu-arm-static
+cross-build-arm:
 	docker build --build-arg REPO=arm32v6 --build-arg ARCH=arm . -t ${DOCKER_TAG}-linux-arm
 
 .PHONY: cross-build-arm
-cross-build-arm64: build/qemu-aarch64-static
+cross-build-arm64:
 	docker build --build-arg REPO=arm64v8 --build-arg ARCH=aarch64 . -t ${DOCKER_TAG}-linux-arm64
 
 # Run on host architechture

drone-manifest.tmpl

@@ -7,18 +7,18 @@ tags:
 {{/if}}
 manifests:
   -
-    image: iamthefij/multiarch-pipeline-test:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64
+    image: iamthefij/multiarch-pipeline-test:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}drone-amd64
     platform:
       architecture: amd64
       os: linux
   -
-    image: iamthefij/multiarch-pipeline-test:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64
+    image: iamthefij/multiarch-pipeline-test:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}drone-arm64
     platform:
       architecture: arm64
       os: linux
       variant: v8
   -
-    image: iamthefij/multiarch-pipeline-test:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm
+    image: iamthefij/multiarch-pipeline-test:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}drone-arm
     platform:
       architecture: arm
       os: linux

get_qemu.sh

@@ -1,14 +0,0 @@
-#! /bin/bash
-
-HOST_ARCH=x86_64
-VERSION=v2.9.1-1
-
-mkdir -p build
-cd build
-
-# Multiple args can be passed in, but in most cases (Makefile and .drone.yml) we only use one at a time
-for target_arch in $*; do
-  wget https://github.com/multiarch/qemu-user-static/releases/download/$VERSION/${HOST_ARCH}_qemu-${target_arch}-static.tar.gz
-  tar -xvf ${HOST_ARCH}_qemu-${target_arch}-static.tar.gz
-  rm ${HOST_ARCH}_qemu-${target_arch}-static.tar.gz
-done