Update build-helm-charts.sh to include image versions

The build-stx-images.sh has been updated to store image
versions to files after building and pushing images.
This commit updates the chart build to allow specifying
the path to the image files/urls as input for building
image versions into armada manifest and the label of the
application tarball which is used to construct the tarball
name.
The default stable latest images in the manifest will be
used if there's no image file passed.

Change-Id: Ideea6ef3b9298a182be26fc1295456a978338f45
Story: 2005350
Task: 30419
Signed-off-by: Angie Wang <angie.wang@windriver.com>

build-tools/build-helm-charts.sh

@@ -17,19 +17,29 @@ fi
 
 SUPPORTED_OS_ARGS=('centos')
 OS=centos
+LABEL=""
+declare -a IMAGE_FILES
 
 function usage {
     cat >&2 <<EOF
 Usage:
-$(basename $0) [ --os <os> ] [ --verbose ]
+$(basename $0) [ --os <os> ] [-i, --image-file <image-file>] [--label <label>] [ --verbose ]
 Options:
-    --os:         Specify base OS (eg. centos)
-    --verbose:    Verbose output
-    --help:       Give this help list
+    --os:                 Specify base OS (eg. centos)
+    -i, --image-file:     Specify the path to image file(s) or url(s). Multiple
+                          files/urls can be specified with a comma-separated list,
+                          or with multiple --image-file arguments.
+                          Note: Files are in order of priority. Images may appear
+                          in multiple files, the last image reference has higher
+                          priority.
+    --label:              Specify the label of the application tarball. The label
+                          is used to construct the name of tarball.
+    --verbose:            Verbose output
+    --help:               Give this help list
 EOF
 }
 
-OPTS=$(getopt -o h -l help,os:,verbose -- "$@")
+OPTS=$(getopt -o h,i: -l help,os:,image-file:,label:,verbose -- "$@")
 if [ $? -ne 0 ]; then
     usage
     exit 1
@@ -48,6 +58,15 @@ while true; do
             OS=$2
             shift 2
             ;;
+        -i | --image-file)
+            # Read comma-separated values into array
+            IMAGE_FILES+=(${2//,/ })
+            shift 2
+            ;;
+        --label)
+            LABEL=$2
+            shift 2
+            ;;
         --verbose)
             VERBOSE=true
             shift
@@ -104,6 +123,51 @@ fi
 mkdir -p ${BUILD_OUTPUT_PATH}
 cd ${BUILD_OUTPUT_PATH}
 
+IMAGE_FILE_PATH=${BUILD_OUTPUT_PATH}/image_file
+if [ ${#IMAGE_FILES[@]} -ne 0 ]; then
+    mkdir ${IMAGE_FILE_PATH}
+fi
+
+# Read the image versions from the passed image
+# files and build them into armada manifest
+function build_image_versions_to_manifest {
+    local manifest_file=$1
+
+    for image_file in ${IMAGE_FILES[@]}; do
+
+        if [[ ${image_file} =~ ^https?://.*(.lst|.txt)$ ]]; then
+            wget --quiet --no-clobber ${image_file} \
+                 --directory-prefix ${IMAGE_FILE_PATH}
+
+            if [ $? -ne 0 ]; then
+                echo "Failed to download image file from ${image_file}" >&2
+                exit 1
+            fi
+        elif [[ -f ${image_file} && ${image_file} =~ .lst|.txt ]]; then
+            cp ${image_file} ${IMAGE_FILE_PATH}
+        else
+            echo "Cannot recognize the provided image file:${image_file}" >&2
+            exit 1
+        fi
+
+        image_file=${IMAGE_FILE_PATH}/${image_file##*/}
+        for image_pattern in $(sed -e 's#/#\\/#g' ${image_file}); do
+
+            # Extract image name from the input image file and
+            image_name=$(echo ${image_pattern} | sed -n 's/.*\/\(.*\):.*$/\1/p')
+
+            # Replace the old image with the new image in manifest file
+            old_image_pattern="\([a-zA-Z0-9.]*\|[0-9.:]*\)\/.*${image_name}:.*"
+            sed -i "s/${old_image_pattern}/${image_pattern}/" ${manifest_file}
+
+            if [ $? -ne 0 ]; then
+                echo "Failed to update manifest file" >&2
+                exit 1
+            fi
+        done
+    done
+}
+
 # Extract the helm charts, order does not matter.
 declare -a FAILED
 RPMS_DIR=${MY_WORKSPACE}/std/rpmbuild/RPMS
@@ -155,6 +219,7 @@ cp -R usr/lib/helm staging/charts
 # Build tarballs for each armada yaml file
 echo "Results:"
 for manifest in usr/lib/armada/*.yaml; do
+    build_image_versions_to_manifest ${manifest}
     cp ${manifest} staging/.
     manifest_file=${manifest##*/}
     manifest_name=${manifest_file%.yaml}
@@ -162,14 +227,21 @@ for manifest in usr/lib/armada/*.yaml; do
     cd staging
     find . -type f ! -name '*.md5' -print0 | xargs -0 md5sum > checksum.md5
     cd ..
-    tar ${TAR_FLAGS} "helm-charts-${manifest_name}.tgz" -C staging/ .
+
+    if [ -n "${LABEL}" ]; then
+        tarball_name="helm-charts-${manifest_name}-${LABEL}.tgz"
+    else
+        tarball_name="helm-charts-${manifest_name}.tgz"
+    fi
+
+    tar ${TAR_FLAGS} ${tarball_name} -C staging/ .
     if [ $? -ne 0 ]; then
         echo "Failed to create the tarball" >&2
         exit 1
     fi
     rm staging/${manifest_file}
     rm staging/checksum.md5
-    echo "    ${BUILD_OUTPUT_PATH}/helm-charts-${manifest_name}.tgz"
+    echo "    ${BUILD_OUTPUT_PATH}/${tarball_name}"
 done
 
 exit 0