CSIT changes to support new Centos 7 device testing container image.

CSIT-1505

Parse {os} parameter from job and use it to separate the correct
image for each distro and the correct stable package versions.
Use two vpp device image names, one for Ubuntu and one for Centos.

Centos sut image is in https://hub.docker.com/r/snergster/csit-sut-centos
Source for Centos sut image:
https://github.com/snergfdio/multivppcache/tree/master/csit-sut-centos

Change-Id: I568c82710d730c4ed0ca25bc12cb6074e1cbe27e
Signed-off-by: Thomas F Herbert <therbert@redhat.com>

3 files changed, 39 insertions, 6 deletions

diff --git a/resources/libraries/bash/entry/bootstrap_vpp_device.sh b/resources/libraries/bash/entry/bootstrap_vpp_device.sh
index 9605f70a4f..209943fb89 100755
--- a/resources/libraries/bash/entry/bootstrap_vpp_device.sh
+++ b/resources/libraries/bash/entry/bootstrap_vpp_device.sh
@@ -35,6 +35,7 @@ common_dirs || die
 get_test_code "${1-}" || die
 get_test_tag_string || die
 select_topology || die
+select_os || die
 gather_build || die
 check_download_dir || die
 activate_virtualenv || die
diff --git a/resources/libraries/bash/function/common.sh b/resources/libraries/bash/function/common.sh
index 2075f8fbd1..399b449fa0 100644
--- a/resources/libraries/bash/function/common.sh
+++ b/resources/libraries/bash/function/common.sh
@@ -33,6 +33,7 @@ function activate_docker_topology () {
     # - TOPOLOGIES - Available topologies.
     # - NODENESS - Node multiplicity of desired testbed.
     # - FLAVOR - Node flavor string, usually describing the processor.
+    # - IMAGE_VER_FILE - Name of file that contains the image version.
     # Variables set:
     # - WORKING_TOPOLOGY - Path to topology file.
 
@@ -40,7 +41,7 @@ function activate_docker_topology () {
         die "Source failed!"
     }
 
-    device_image="$(< ${CSIT_DIR}/VPP_DEVICE_IMAGE)"
+    device_image="$(< ${CSIT_DIR}/${IMAGE_VER_FILE})"
     case_text="${NODENESS}_${FLAVOR}"
     case "${case_text}" in
         "1n_skx")
@@ -760,6 +761,34 @@ function select_vpp_device_tags () {
     done
 }
 
+function select_os () {
+
+    set -exuo pipefail
+
+    # Variables read:
+    # - OS - os or distro for selecting container image.
+    # Variables set:
+    # - VPP_VER_FILE - Name of File in CSIT dir containing vpp stable version.
+    # - IMAGE_VER_FILE - Name of File in CSIT dir containing the image name.
+    # - PKG_SUFFIX - Suffix of OS package file name, "rpm" or "deb."
+
+    case "${OS}" in
+    "ubuntu"*)
+        IMAGE_VER_FILE="VPP_DEVICE_IMAGE_UBUNTU"
+        VPP_VER_FILE="VPP_STABLE_VER_UBUNTU_BIONIC"
+        PKG_SUFFIX="deb"
+        ;;
+    "centos"*)
+        IMAGE_VER_FILE="VPP_DEVICE_IMAGE_CENTOS"
+        VPP_VER_FILE="VPP_STABLE_VER_CENTOS"
+        PKG_SUFFIX="rpm"
+        ;;
+    *)
+        die "Unable to identify distro or os from ${OS}"
+        ;;
+    esac
+}
+
 
 function select_topology () {
 
diff --git a/resources/libraries/bash/function/gather.sh b/resources/libraries/bash/function/gather.sh
index 518c6b4105..56b148d1e1 100644
--- a/resources/libraries/bash/function/gather.sh
+++ b/resources/libraries/bash/function/gather.sh
@@ -35,6 +35,7 @@ function gather_build () {
     # - ${DOWNLOAD_DIR} - Files needed by tests are gathered here.
     # Functions called:
     # - die - Print to stderr and exit, defined in common.sh
+    # - gather_os - Parse os parameter for OS/distro name.
     # - gather_dpdk, gather_vpp, gather_ligato - See their definitions.
     # Multiple other side effects are possible,
     # see functions called from here for their current description.
@@ -250,14 +251,16 @@ function gather_vpp () {
     # - TEST_CODE - The test selection string from environment or argument.
     # - DOWNLOAD_DIR - Path to directory pybot takes the build to test from.
     # - CSIT_DIR - Path to existing root of local CSIT git repository.
+    # Variables set:
+    # - VPP_VERSION - VPP stable version under test.
     # Files read:
     # - ${CSIT_DIR}/DPDK_STABLE_VER - DPDK version to use
     #   by csit-vpp not-timed jobs.
-    # - ${CSIT_DIR}/VPP_STABLE_VER_UBUNTU - VPP version to use by those.
-    # - ../vpp*.deb - Relative to ${DOWNLOAD_DIR}, copied for vpp-csit jobs.
+    # - ${CSIT_DIR}/VPP_STABLE_VER_UBUNTU - Ubuntu VPP version to usee.
+    # - ../vpp*.deb|rpm - Relative to ${DOWNLOAD_DIR}, copied for vpp-csit jobs.
     # Directories updated:
     # - ${DOWNLOAD_DIR}, vpp-*.deb files are copied here for vpp-csit jobs.
-    # - ./ - Assumed ${DOWNLOAD_DIR}, vpp-*.deb files
+    # - ./ - Assumed ${DOWNLOAD_DIR}, vpp-*.deb|rpm files
     #   are downloaded here for csit-vpp.
     # Functions called:
     # - die - Print to stderr and exit, defined in common_functions.sh
@@ -277,7 +280,7 @@ function gather_vpp () {
                 warn "Downloading latest VPP packages from Packagecloud."
             else
                 warn "Downloading stable VPP packages from Packagecloud."
-                VPP_VERSION="$(<"${CSIT_DIR}/VPP_STABLE_VER_UBUNTU_BIONIC")" || {
+                VPP_VERSION="$(<"${CSIT_DIR}/${VPP_VER_FILE}")" || {
                     die "Read VPP stable version failed."
                 }
             fi
@@ -286,7 +289,7 @@ function gather_vpp () {
             ;;
         "vpp-csit-"*)
             # Use locally built packages.
-            mv "${DOWNLOAD_DIR}"/../"vpp"*".deb" "${DOWNLOAD_DIR}"/ || {
+            mv "${DOWNLOAD_DIR}"/../"vpp"*".${PKG_SUFFIX}" "${DOWNLOAD_DIR}"/ || {
                 die "Move command failed."
             }
             ;;