Cross-compile arm and arm64 images

It allows building images for Raspberry PI via travis-ci.
It builds all arm64 images except functest-benchmarking [1].

[1] https://travis-ci.org/collivier/functest/jobs/519673994

Change-Id: I695c3afe8aacda63b7eae0d2672cd836c19e8ceb
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
(cherry picked from commit 5f525ebaf9d503aa641996fe2ac780dc9dda1774)

2 files changed, 108 insertions, 5 deletions

diff --git a/.travis.yml b/.travis.yml
index cc7d0eb2d..7effccace 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,10 +26,23 @@ jobs:
         - REPO="${DOCKER_USERNAME}"
         - amd64_dirs="docker/core"
         - arm64_dirs=""
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs="docker/core"
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs=""
+        - arm_dirs="docker/core"
     - stage: publish functest-core manifests
       script: >
         sudo manifest-tool push from-args \
-          --platforms linux/amd64 \
+          --platforms linux/amd64,linux/arm,linux/arm64 \
           --template ${DOCKER_USERNAME}/functest-core:ARCH-hunter \
           --target ${DOCKER_USERNAME}/functest-core:hunter
     - stage: build functest-tempest images
@@ -38,10 +51,23 @@ jobs:
         - REPO="${DOCKER_USERNAME}"
         - amd64_dirs="docker/tempest"
         - arm64_dirs=""
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs="docker/tempest"
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs=""
+        - arm_dirs="docker/tempest"
     - stage: publish functest-tempest manifests
       script: >
         sudo manifest-tool push from-args \
-          --platforms linux/amd64 \
+          --platforms linux/amd64,linux/arm,linux/arm64 \
           --template ${DOCKER_USERNAME}/functest-tempest:ARCH-hunter \
           --target ${DOCKER_USERNAME}/functest-tempest:hunter
     - stage: build all functest images
@@ -50,40 +76,92 @@ jobs:
         - REPO="${DOCKER_USERNAME}"
         - amd64_dirs="docker/healthcheck"
         - arm64_dirs=""
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs="docker/healthcheck"
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs=""
+        - arm_dirs="docker/healthcheck"
     - script: sudo -E bash build.sh
       env:
         - REPO="${DOCKER_USERNAME}"
         - amd64_dirs="docker/smoke"
         - arm64_dirs=""
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs="docker/smoke"
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs=""
+        - arm_dirs="docker/smoke"
     - script: sudo -E bash build.sh
       env:
         - REPO="${DOCKER_USERNAME}"
         - amd64_dirs="docker/benchmarking"
         - arm64_dirs=""
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs=""
+        - arm_dirs="docker/benchmarking"
     - script: sudo -E bash build.sh
       env:
         - REPO="${DOCKER_USERNAME}"
         - amd64_dirs="docker/features"
         - arm64_dirs=""
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs="docker/features"
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs=""
+        - arm_dirs="docker/features"
     - script: sudo -E bash build.sh
       env:
         - REPO="${DOCKER_USERNAME}"
         - amd64_dirs="docker/vnf"
         - arm64_dirs=""
+        - arm_dirs=""
     - stage: publish all manifests
       script: >
         sudo manifest-tool push from-args \
-          --platforms linux/amd64 \
+          --platforms linux/amd64,linux/arm,linux/arm64 \
           --template ${DOCKER_USERNAME}/functest-healthcheck:ARCH-hunter \
           --target ${DOCKER_USERNAME}/functest-healthcheck:hunter
     - script: >
         sudo manifest-tool push from-args \
-          --platforms linux/amd64 \
+          --platforms linux/amd64,linux/arm,linux/arm64 \
           --template ${DOCKER_USERNAME}/functest-smoke:ARCH-hunter \
           --target ${DOCKER_USERNAME}/functest-smoke:hunter
     - script: >
         sudo manifest-tool push from-args \
-          --platforms linux/amd64 \
+          --platforms linux/amd64,linux/arm \
+          --template ${DOCKER_USERNAME}/functest-benchmarking:ARCH-hunter \
+          --target ${DOCKER_USERNAME}/functest-benchmarking:hunter
+    - script: >
+        sudo manifest-tool push from-args \
+          --platforms linux/amd64,linux/arm,linux/arm64 \
           --template ${DOCKER_USERNAME}/functest-features:ARCH-hunter \
           --target ${DOCKER_USERNAME}/functest-features:hunter
     - script: >
diff --git a/build.sh b/build.sh
index 535dc1a47..82e075240 100644
--- a/build.sh
+++ b/build.sh
@@ -11,6 +11,13 @@ docker/smoke \
 docker/benchmarking \
 docker/features \
 docker/vnf"}
+arm_dirs=${arm_dirs-"\
+docker/core \
+docker/tempest \
+docker/healthcheck \
+docker/smoke \
+docker/benchmarking \
+docker/features"}
 arm64_dirs=${arm64_dirs-${amd64_dirs}}
 build_opts=(--pull=true --no-cache --force-rm=true)
 
@@ -48,4 +55,22 @@ done
         multiarch/alpine:arm64-v3.9 || true)
 find . -name Dockerfile -exec git checkout {} +
 
+find . -name Dockerfile -exec sed -i \
+    -e "s|alpine:3.9|multiarch/alpine:armhf-v3.9|g" {} +
+find . -name Dockerfile -exec sed -i \
+    -e "s|opnfv/functest-core:hunter|${repo}/functest-core:arm-hunter|g" {} +
+find . -name Dockerfile -exec sed -i \
+    -e "s|opnfv/functest-tempest:hunter|${repo}/functest-tempest:arm-hunter|g" {} +
+for dir in ${arm_dirs}; do
+    (cd "${dir}" && docker build "${build_opts[@]}" \
+        -t "${repo}/functest-${dir##**/}:arm-hunter" .)
+    docker push "${repo}/functest-${dir##**/}:arm-hunter"
+    [ "${dir}" != "docker/core" ] &&
+        (docker rmi "${repo}/functest-${dir##**/}:arm-hunter" || true)
+done
+[ ! -z "${arm_dirs}" ] &&
+    (docker rmi "${repo}/functest-core:arm-hunter" \
+        multiarch/alpine:armhf-v3.9 || true)
+find . -name Dockerfile -exec git checkout {} +
+
 exit $?