Added automated testing via tox and zuul.

Tweaked tests/basic_test.sh functional test so that it no longer
requires multpass, and can run without kvm cpu extensions being
enabled (not all machines in the game have cpu extensions.)

Added tox.ini, wrapper script for building and installation, etc.

Change-Id: I968116dd7bec412a55813c896d60cfc86c7070db

.gitreview

@@ -0,0 +1,4 @@
+[gerrit]
+host=review.opendev.org
+port=29418
+project=x/microstack.git

.zuul.yaml

@@ -0,0 +1,13 @@
+- job:
+    name: microstack-tox-snap-with-sudo
+    parent: openstack-tox-snap-with-sudo
+    timeout: 3600
+    nodeset: ubuntu-bionic
+
+- project:
+    check:
+      jobs:
+        - microstack-tox-snap-with-sudo
+    gate:
+      jobs:
+        - microstack-tox-snap-with-sudo

snap-overlay/bin/launch.sh

@@ -59,8 +59,8 @@ while :; do
     fi
     if [[ $(openstack server list | grep $SERVER | grep ERROR) ]]; then
         openstack server list
-        echo "Uh-oh. There was an error. See /var/snap/microstack/common/logs for details."
-        break
+        echo "Uh-oh. There was an error. See /var/snap/microstack/common/log for details."
+        exit 1
     fi
 done
 

snapcraft.yaml

@@ -551,6 +551,7 @@ parts:
       - libcaca0
       - libfdt1
       - libflac8
+      - libglu1-mesa
       - libiscsi7
       - libjpeg-turbo8
       - libnspr4
@@ -562,6 +563,7 @@ parts:
       - librados2
       - librbd1
       - libsdl1.2debian
+      - libslang2
       - libsndfile1
       - libusb-1.0-0
       - libusbredirparser1
@@ -573,6 +575,7 @@ parts:
       - libxdmcp6
       - libxen-dev
       - libxext6
+      - libpng16-16
     build-packages:
       - acpica-tools
       - libaio-dev

test-requirements.txt

@@ -0,0 +1 @@
+petname

tests/basic-test.sh

@@ -5,91 +5,112 @@
 # microstack snap, spin up a test instance, and verify that the test
 # instance is accessible, and can access the Internet.
 #
-# The multipass snap and the petname debian package must be installed
-# on the host system in order to run this test.
-#
 # The basic test accepts two command line arguments:
 #
 # -u <channel> # First installs a released snap from the named
 #              # channel, in order to test basic upgrade functionality.
 #
-# -d <distro>  # Specifies the distro of the multipass vm.
-#
 ##############################################################################
 
 # Configuration and checks
 set -ex
 
-UPGRADE_FROM="none"
-DISTRO=18.04
+export PATH=/snap/bin:$PATH
 
-while getopts u:d: option
+UPGRADE_FROM="none"
+FORCE_QEMU=false
+
+while getopts u:d:q option
 do
     case "${option}"
     in
         u) UPGRADE_FROM=${OPTARG};;
-        d) DISTRO=${OPTARG};;
+        q) FORCE_QEMU=true
     esac
 done
 
-command -v multipass > /dev/null || (echo "Please install multipass."; exit 1);
-command -v petname > /dev/null || (echo "Please install petname."; exit 1);
 if [ ! -f microstack_rocky_amd64.snap ]; then
    echo "microstack_rocky_amd64.snap not found."
    echo "Please run snapcraft before executing the tests."
    exit 1
 fi
 
-MACHINE=$(petname)
+# Functions
+dump_logs () {
+    export DUMP_DIR=/tmp
+    if [ $(whoami) == 'zuul' ]; then
+        export DUMP_DIR="/home/zuul/zuul-output/logs";
+    fi
+    sudo tar cvzf $DUMP_DIR/dump.tar.gz \
+         /var/snap/microstack/common/log \
+         /var/log/syslog
+    sudo journalctl -xe --no-pager
+}
 
 # Setup
 echo "++++++++++++++++++++++++++++++++++++++++++++++++++"
-echo "++    Starting tests on $MACHINE.               ++"
-echo "++      Distro: $DISTRO                         ++"
+echo "++    Starting tests on localhost               ++"
 echo "++      Upgrade from: $UPGRADE_FROM             ++"
 echo "++++++++++++++++++++++++++++++++++++++++++++++++++"
 
-# Launch a machine and copy the snap to it.
-multipass launch --cpus 2 --mem 16G $DISTRO --name $MACHINE
-multipass copy-files microstack_rocky_amd64.snap $MACHINE:
-
 # Possibly install a release of the snap before running a test.
 if [ "${UPGRADE_FROM}" != "none" ]; then
-    multipass exec $MACHINE -- sudo snap install --classic \
-              --${UPGRADE_FROM} microstack
+    sudo snap install --classic --${UPGRADE_FROM} microstack
 fi
 
 # Install the snap under test
-multipass exec $MACHINE -- \
-          sudo snap install --classic --dangerous microstack*.snap
+sudo snap install --classic --dangerous microstack*.snap
+
 # Comment out the above and uncomment below to install the version of
 # the snap from the store.
 # TODO: add this as a flag.
-#multipass exec $MACHINE -- \
-#          sudo snap install --classic --edge microstack
+# sudo snap install --classic --edge microstack
+
+# If kvm processor extensions not supported, switch to qemu
+# TODO: just do this in the install step of the snap
+if ! [ $(egrep "vmx|svm" /proc/cpuinfo | wc -l) -gt 0 ]; then
+    FORCE_QEMU=true;
+fi
+if [ "$FORCE_QEMU" == "true" ]; then
+    cat<<EOF > /tmp/hypervisor.conf
+[DEFAULT]
+compute_driver = libvirt.LibvirtDriver
+
+[workarounds]
+disable_rootwrap = True
+
+[libvirt]
+virt_type = qemu
+cpu_mode = host-model
+EOF
+    sudo cp /tmp/hypervisor.conf \
+         /var/snap/microstack/common/etc/nova/nova.conf.d/hypervisor.conf
+    sudo snap restart microstack
+fi
 
 # Run microstack.launch
-multipass exec $MACHINE -- /snap/bin/microstack.launch breakfast
+/snap/bin/microstack.launch breakfast || (dump_logs && exit 1)
 
 # Verify that endpoints are setup correctly
 # List of endpoints should contain 10.20.20.1
-if ! multipass exec $MACHINE -- /snap/bin/microstack.openstack endpoint list | grep "10.20.20.1"; then
+if ! /snap/bin/microstack.openstack endpoint list | grep "10.20.20.1"; then
     echo "Endpoints are not set to 10.20.20.1!";
     exit 1;
 fi
 # List of endpoints should not contain localhost
-if multipass exec $MACHINE -- /snap/bin/microstack.openstack endpoint list | grep "localhost"; then
+if /snap/bin/microstack.openstack endpoint list | grep "localhost"; then
     echo "Endpoints are not set to 10.20.20.1!";
     exit 1;
 fi
 
 
 # Verify that microstack.launch completed
-IP=$(multipass exec $MACHINE -- /snap/bin/microstack.openstack server list | grep breakfast | cut -d" " -f9)
+IP=$(/snap/bin/microstack.openstack server list | grep breakfast | cut -d" " -f9)
 echo "Waiting for ping..."
 PINGS=1
-MAX_PINGS=20
-until multipass exec $MACHINE -- ping -c 1 $IP &>/dev/null; do
+MAX_PINGS=40  # We might sometimes be testing qemu emulation, so we
+              # want to give this some time ...
+until ping -c 1 $IP &>/dev/null; do
     PINGS=$(($PINGS + 1));
     if test $PINGS -gt $MAX_PINGS; then
         echo "Unable to ping machine!";
@@ -98,9 +119,9 @@ until multipass exec $MACHINE -- ping -c 1 $IP &>/dev/null; do
 done;
 
 ATTEMPTS=1
-MAX_ATTEMPTS=20
-until multipass exec $MACHINE -- \
-          ssh -oStrictHostKeyChecking=no -i .ssh/id_microstack cirros@$IP -- \
+MAX_ATTEMPTS=40  # See above for note about qemu
+until ssh -oStrictHostKeyChecking=no -i \
+          $HOME/.ssh/id_microstack cirros@$IP -- \
           ping -c 1 91.189.94.250; do
     ATTEMPTS=$(($ATTEMPTS + 1));
     if test $ATTEMPTS -gt $MAX_ATTEMPTS; then
@@ -113,9 +134,6 @@ done;
 # Cleanup
 unset IP
 echo "++++++++++++++++++++++++++++++++++++++++++++++++++"
-echo "++   Completed tests. Tearing down $MACHINE.    ++"
+echo "++   Completed tests. Uninstalling microstack   ++"
 echo "++++++++++++++++++++++++++++++++++++++++++++++++++"
-multipass stop $MACHINE
-multipass delete $MACHINE
-multipass purge  # This is a little bit rude to do, but we assume that
-                 # we can beat up on the test machine a bit.
+sudo snap remove microstack

tools/install_and_build.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -ex
+
+export PATH=/snap/bin:$PATH
+
+which nc || sudo apt install -y netcat
+
+sudo apt update
+sudo apt install -y snapd
+
+sudo snap install --classic snapcraft
+sudo snap install --classic lxd
+sudo lxd init --auto
+
+sudo snapcraft --use-lxd

tox.ini

@@ -0,0 +1,18 @@
+[tox]
+envlist = snap
+skipsdist = True
+
+[testenv]
+install_command = pip install {opts} {packages}
+setenv =
+    PATH = {env:PATH}:/snap/bin
+passenv = HOME TERM
+whitelist_externals =
+    sudo
+    /snap/bin/snapcraft
+
+[testenv:snap]
+deps = -r{toxinidir}/test-requirements.txt
+commands =
+    {toxinidir}/tools/install_and_build.sh
+    {toxinidir}/tests/basic-test.sh