Update Dockerfile and stage-test script to run tests for charms

This patch updates Dockerfile to use Ubuntu 20.04 as base for building
and testing charms.
This patch updates stage-test script to execute testing for charms.
Tests will be executed only for charms modified by the review.
This patch updates tox configuration for charms setting the python
interpreter to python3.8.

Change-Id: Ib9046b78d6520188cc51ac776fe60ea16479f11c
Signed-off-by: Dario Faccin <dario.faccin@canonical.com>

Dockerfile

@@ -24,7 +24,7 @@
 #   devops-stages/stage-build.sh
 #
 
-FROM ubuntu:18.04
+FROM ubuntu:20.04
 
 ARG APT_PROXY
 RUN if [ ! -z $APT_PROXY ] ; then \
@@ -37,13 +37,13 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
         debhelper \
         dh-make \
         git \
-        python3.8 \
+        python3 \
         python3-all \
         python3-dev \
         python3-setuptools
 
-RUN python3 -m easy_install pip==21.0.1
-RUN pip3 install tox==3.22.0
+RUN python3 -m easy_install pip==21.3.1
+RUN pip install tox==3.24.5
 
 ENV LC_ALL C.UTF-8
 ENV LANG C.UTF-8

devops-stages/stage-test.sh

@@ -16,17 +16,16 @@
 
 set -eu
 
-if [ $(git diff --name-only origin/$GERRIT_BRANCH -- installers/charm/ |wc -l) -eq 0 ]; then
-    exit 0
-fi
-
 CURRENT_DIR=`pwd`
 
 # Execute tests for charms
 CHARM_PATH="./installers/charm"
-CHARM_NAMES="keystone prometheus grafana"
+CHARM_NAMES="osm-lcm osm-mon osm-nbi osm-ng-ui osm-pol osm-ro keystone prometheus grafana vca-integrator-operator"
 for charm in $CHARM_NAMES; do
-    cd $CHARM_PATH/$charm
-    TOX_PARALLEL_NO_SPINNER=1 tox --parallel=auto
-    cd $CURRENT_DIR
+    if [ $(git diff --name-only "origin/${GERRIT_BRANCH}" -- "installers/charm/${charm}" | wc -l) -ne 0 ]; then
+        echo "Running tox for ${charm}"
+        cd "${CHARM_PATH}/${charm}"
+        TOX_PARALLEL_NO_SPINNER=1 tox -e lint,unit --parallel=auto
+        cd "${CURRENT_DIR}"
+    fi
 done

installers/charm/osm-lcm/tox.ini

@@ -29,6 +29,7 @@ tst_path = {toxinidir}/tests/
 all_path = {[vars]src_path} {[vars]tst_path} 
 
 [testenv]
+basepython = python3.8
 setenv =
   PYTHONPATH = {toxinidir}:{toxinidir}/lib:{[vars]src_path}
   PYTHONBREAKPOINT=ipdb.set_trace

installers/charm/osm-mon/tox.ini

@@ -29,6 +29,7 @@ tst_path = {toxinidir}/tests/
 all_path = {[vars]src_path} {[vars]tst_path}
 
 [testenv]
+basepython = python3.8
 setenv =
   PYTHONPATH = {toxinidir}:{toxinidir}/lib:{[vars]src_path}
   PYTHONBREAKPOINT=ipdb.set_trace

installers/charm/osm-nbi/tox.ini

@@ -30,6 +30,7 @@ lib_path = {toxinidir}/lib/charms/osm_nbi
 all_path = {[vars]src_path} {[vars]tst_path} 
 
 [testenv]
+basepython = python3.8
 setenv =
   PYTHONPATH = {toxinidir}:{toxinidir}/lib:{[vars]src_path}
   PYTHONBREAKPOINT=ipdb.set_trace

installers/charm/osm-ng-ui/tox.ini

@@ -29,6 +29,7 @@ tst_path = {toxinidir}/tests
 all_path = {[vars]src_path} {[vars]tst_path}
 
 [testenv]
+basepython = python3.8
 setenv =
   PYTHONPATH = {toxinidir}:{toxinidir}/lib:{[vars]src_path}
   PYTHONBREAKPOINT=ipdb.set_trace

installers/charm/osm-pol/tox.ini

@@ -29,6 +29,7 @@ tst_path = {toxinidir}/tests/
 all_path = {[vars]src_path} {[vars]tst_path} 
 
 [testenv]
+basepython = python3.8
 setenv =
   PYTHONPATH = {toxinidir}:{toxinidir}/lib:{[vars]src_path}
   PYTHONBREAKPOINT=ipdb.set_trace

installers/charm/osm-ro/tox.ini

@@ -30,6 +30,7 @@ lib_path = {toxinidir}/lib/charms/osm_ro
 all_path = {[vars]src_path} {[vars]tst_path}
 
 [testenv]
+basepython = python3.8
 setenv =
   PYTHONPATH = {toxinidir}:{toxinidir}/lib:{[vars]src_path}
   PYTHONBREAKPOINT=ipdb.set_trace

installers/charm/vca-integrator-operator/tox.ini

@@ -27,6 +27,7 @@ lib_path = {toxinidir}/lib/charms/osm_vca_integrator
 all_path = {[vars]src_path} {[vars]tst_path} {[vars]lib_path}
 
 [testenv]
+basepython = python3.8
 setenv =
   PYTHONPATH = {toxinidir}:{toxinidir}/lib:{[vars]src_path}
   PYTHONBREAKPOINT=ipdb.set_trace