Build to create images with binary

Update the build to create images of the binaries for each
of the supported platforms: darwin, armhf, arm64, windows,
and x86_64 (linux)

Also updated the travis file in order to push these images
up to docker hub and create a manifest file for easy
multi-arch image pulls

Signed-off-by: Burton Rheutan <[email protected]>

.travis.yml

@@ -9,6 +9,34 @@ addons:
 before_install: 
 script:
 - sh build.sh
+after_success:
+  - if [ -z $DOCKER_NS ] ; then
+      export DOCKER_NS=functions;
+      fi
+  - if [ ! -z "$TRAVIS_TAG" ] ; then
+      export DOCKER_CLI_EXPERIMENTAL=enabled
+
+      docker tag $DOCKER_NS/of-watchdog:latest-dev-darwin $DOCKER_NS/of-watchdog:$TRAVIS_TAG-darwin;
+      docker tag $DOCKER_NS/of-watchdog:latest-dev-armhf $DOCKER_NS/of-watchdog:$TRAVIS_TAG-armhf;
+      docker tag $DOCKER_NS/of-watchdog:latest-dev-arm64 $DOCKER_NS/of-watchdog:$TRAVIS_TAG-arm64;
+      docker tag $DOCKER_NS/of-watchdog:latest-dev-windows $DOCKER_NS/of-watchdog:$TRAVIS_TAG-windows;
+      docker tag $DOCKER_NS/of-watchdog:latest-dev-x86_64 $DOCKER_NS/of-watchdog:$TRAVIS_TAG-x86_64;
+      echo $DOCKER_PASSWORD | docker login -u=$DOCKER_USERNAME --password-stdin;
+      docker push $DOCKER_NS/of-watchdog:$TRAVIS_TAG-darwin;
+      docker push $DOCKER_NS/of-watchdog:$TRAVIS_TAG-armhf;
+      docker push $DOCKER_NS/of-watchdog:$TRAVIS_TAG-arm64;
+      docker push $DOCKER_NS/of-watchdog:$TRAVIS_TAG-windows; 
+      docker push $DOCKER_NS/of-watchdog:$TRAVIS_TAG-x86_64;
+
+      ./make_manifest.sh
+      docker push $DOCKER_NS/of-watchdog:$TRAVIS_TAG
+
+      echo $QUAY_PASSWORD | docker login -u=$QUAY_USERNAME --password-stdin quay.io;
+      docker push quay.io/$DOCKER_NS/of-watchdog:$TRAVIS_TAG-armhf;
+      docker push quay.io/$DOCKER_NS/of-watchdog:$TRAVIS_TAG-arm64;
+      docker push quay.io/$DOCKER_NS/of-watchdog:$TRAVIS_TAG-windows; 
+      docker push quay.io/$DOCKER_NS/of-watchdog:$TRAVIS_TAG-x86_64;
+      fi
 before_deploy:
   - ./ci/hashgen.sh
 deploy:
@@ -28,4 +56,4 @@ deploy:
   - "./of-watchdog.exe.sha256"
   skip_cleanup: true
   on:
-    tags: true
+    tags: true  

Dockerfile.packager

@@ -0,0 +1,6 @@
+FROM functions/of-watchdog:build as build
+FROM scratch
+
+ARG PLATFORM
+
+COPY --from=build /go/src/github.com/openfaas-incubator/of-watchdog/of-watchdog$PLATFORM ./fwatchdog

build.sh

@@ -1,11 +1,4 @@
-#!/bin/sh
-
-export arch=$(uname -m)
-
-if [ ! "$arch" = "x86_64" ] ; then
-    echo "Build not supported on $arch, use cross-build."
-    exit 1
-fi
+#!/bin/bash
 
 if [ ! "$http_proxy" = "" ]
 then
@@ -14,6 +7,12 @@ else
     docker build -t functions/of-watchdog:build .
 fi
 
+docker build --no-cache --build-arg PLATFORM="-darwin" -t openfaas/of-watchdog:latest-dev-darwin . -f Dockerfile.packager
+docker build --no-cache --build-arg PLATFORM="-armhf" -t openfaas/of-watchdog:latest-dev-armhf . -f Dockerfile.packager
+docker build --no-cache --build-arg PLATFORM="-arm64" -t openfaas/of-watchdog:latest-dev-arm64 . -f Dockerfile.packager
+docker build --no-cache --build-arg PLATFORM=".exe" -t openfaas/of-watchdog:latest-dev-windows . -f Dockerfile.packager
+docker build --no-cache --build-arg PLATFORM="" -t openfaas/of-watchdog:latest-dev-x86_64 . -f Dockerfile.packager
+
 docker create --name buildoutput functions/of-watchdog:build echo
 
 docker cp buildoutput:/go/src/github.com/openfaas-incubator/of-watchdog/of-watchdog ./of-watchdog

make_manifest.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+export USR=$DOCKER_NS
+export TAG=$TRAVIS_TAG
+
+docker manifest create $USR/of-watchdog:$TAG \
+  $USR/of-watchdog:$TAG-darwin \
+  $USR/of-watchdog:$TAG-x86_64 \
+  $USR/of-watchdog:$TAG-armhf \
+  $USR/of-watchdog:$TAG-arm64 \
+  $USR/of-watchdog:$TAG-windows
+
+docker manifest annotate $USR/of-watchdog:$TAG --arch arm $USR/of-watchdog:$TAG-darwin
+docker manifest annotate $USR/of-watchdog:$TAG --arch arm $USR/of-watchdog:$TAG-armhf
+docker manifest annotate $USR/of-watchdog:$TAG --arch arm64 $USR/of-watchdog:$TAG-arm64
+docker manifest annotate $USR/of-watchdog:$TAG --os windows $USR/of-watchdog:$TAG-windows
+
+docker manifest push $USR/of-watchdog:$TAG