Build arm* functest-vnf containers via travis-ci

It doesn't build juju deps if arm* as they can't be cross-compiled.
Then that deps won't be built in releng on native arm64 hosts
It's worth mentioning that containers have never been executed in
OPNFV gates.

That change allows running all other VNFs on Raspberry PI and
building containers without arm build servers.

Change-Id: I836a72f049e7f0e6ae704f5b829914692d5b2c09
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
(cherry picked from commit 0c3ae6e09acd16fc50a516975631dd6bb76b8c53)

3 files changed, 35 insertions, 14 deletions

diff --git a/.travis.yml b/.travis.yml
index 5649db10e..dca9d3196 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -152,6 +152,18 @@ jobs:
         - amd64_dirs="docker/vnf"
         - arm64_dirs=""
         - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs="docker/vnf"
+        - arm_dirs=""
+    - script: sudo -E bash build.sh
+      env:
+        - REPO="${DOCKER_USERNAME}"
+        - amd64_dirs=""
+        - arm64_dirs=""
+        - arm_dirs="docker/vnf"
     - stage: publish all manifests
       script: >
         sudo manifest-tool push from-args \
@@ -175,6 +187,6 @@ jobs:
           --target ${DOCKER_USERNAME}/functest-features:iruya
     - script: >
         sudo manifest-tool push from-args \
-          --platforms linux/amd64 \
+          --platforms linux/amd64,linux/arm,linux/arm64 \
           --template ${DOCKER_USERNAME}/functest-vnf:ARCH-iruya \
           --target ${DOCKER_USERNAME}/functest-vnf:iruya
diff --git a/docker/vnf/Dockerfile b/docker/vnf/Dockerfile
index f1e8455cf..76937a2f9 100644
--- a/docker/vnf/Dockerfile
+++ b/docker/vnf/Dockerfile
@@ -56,22 +56,25 @@ RUN apk --no-cache add --update \
     (cd /home/opnfv/functest/data/router/opnfv-vnf-data && \
         git fetch --tags https://github.com/oolorg/opnfv-vnf-data.git $VROUTER_TAG && \
         git checkout FETCH_HEAD) && \
-    git init /src/epc-requirements/abot_charm && \
-    (cd /src/epc-requirements/abot_charm && \
-        git fetch --tags https://github.com/RebacaInc/abot_charm.git $ABOT_CHARM && \
-        git checkout FETCH_HEAD) && \
-    python3 -m pip install --no-cache-dir --src /src -cupper-constraints.txt -cupper-constraints.opnfv.txt \
-        juju-wait==$JUJU_WAIT_TAG && \
-    go get -d github.com/rogpeppe/godeps && \
-    (cd $GOPATH/src/github.com/rogpeppe/godeps && git checkout $GODEPS_TAG && go install -v github.com/rogpeppe/godeps) && \
-    go get -d -v github.com/juju/juju/... || true && \
-    (cd $GOPATH/src/github.com/juju/juju && git checkout $JUJU_TAG && godeps -u dependencies.tsv) && \
-    go install -v github.com/juju/juju/... && \
-    rm -r $GOPATH/src/ $GOPATH/pkg && \
+    case "$(uname -m)" in \
+    "armv7l" | "aarch64") ;; \
+    *) \
+        git init /src/epc-requirements/abot_charm && \
+        (cd /src/epc-requirements/abot_charm && \
+            git fetch --tags https://github.com/RebacaInc/abot_charm.git $ABOT_CHARM && \
+            git checkout FETCH_HEAD) && \
+        python3 -m pip install --no-cache-dir --src /src -cupper-constraints.txt -cupper-constraints.opnfv.txt \
+            juju-wait==$JUJU_WAIT_TAG && \
+        go get -d github.com/rogpeppe/godeps && \
+        (cd $GOPATH/src/github.com/rogpeppe/godeps && git checkout $GODEPS_TAG && go install -v github.com/rogpeppe/godeps) && \
+        go get -d -v github.com/juju/juju/... || true && \
+        (cd $GOPATH/src/github.com/juju/juju && git checkout $JUJU_TAG && godeps -u dependencies.tsv) && \
+        go install -v github.com/juju/juju/... && \
+        rm -r $GOPATH/src/ $GOPATH/pkg /src/epc-requirements/abot_charm/.git /root/.cache/go-build;; \
+    esac && \
     (cd /src/vims-test && bundle config build.nokogiri --use-system-libraries && bundle install --system && bundle update rest-client) && \
     rm -r upper-constraints.txt upper-constraints.opnfv.txt /src/vims-test/.git /src/cloudify_vims/.git /src/heat_vims/.git /src/vims-test/quaff/.git \
         /src/vims-test/build-infra/.git /src/opnfv-vnf-vyos-blueprint/.git \
-        /src/epc-requirements/abot_charm/.git /root/.cache/go-build \
         /tmp/clearwater-heat-singlenet-deps.patch && \
     apk del .build-deps
 COPY testcases.yaml /usr/lib/python2.7/site-packages/xtesting/ci/testcases.yaml
diff --git a/functest/opnfv_tests/vnf/epc/juju_epc.py b/functest/opnfv_tests/vnf/epc/juju_epc.py
index 102f77d96..cbf531b6b 100644
--- a/functest/opnfv_tests/vnf/epc/juju_epc.py
+++ b/functest/opnfv_tests/vnf/epc/juju_epc.py
@@ -147,6 +147,12 @@ class JujuEpc(singlevm.VmReady2):
         self.flavor_alt = None
 
     def check_requirements(self):
+        if not os.path.exists("/src/epc-requirements/go/bin/juju"):
+            self.__logger.warn(
+                "Juju cannot be cross-compiled (arm and arm64) from the time "
+                "being")
+            self.is_skipped = True
+            self.project.clean()
         if env.get('NEW_USER_ROLE').lower() == "admin":
             self.__logger.warn(
                 "Defining NEW_USER_ROLE=admin will easily break the testcase "