add podman script/alias support to build and push scripts

scripts/build_viewer.sh

@@ -13,10 +13,15 @@
 # limitations under the License.
 
 #!/usr/bin/env bash
+shopt -s expand_aliases
+set -eux
 
 ABSOLUTE_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 BUILD_DIR=$ABSOLUTE_PATH/..
 
+# Set Docker/Podman alias if necessary
+. ${ABSOLUTE_PATH}/setenv.sh
+
 docker build --no-cache -t registry-viewer $BUILD_DIR \
     --build-arg PROJECT_NAME=registry-viewer \
     --build-arg NEXT_PUBLIC_BASE_PATH=${NEXT_PUBLIC_BASE_PATH:-"/viewer"}

scripts/push.sh

@@ -13,8 +13,16 @@
 # limitations under the License.
 
 #!/usr/bin/env bash
+shopt -s expand_aliases
+set -eux
 
 BASE_TAG=$1
 IMAGE_TAG=$2
+
+ABSOLUTE_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# Set Docker/Podman alias if necessary
+. ${ABSOLUTE_PATH}/setenv.sh
+
 docker tag $BASE_TAG $IMAGE_TAG
 docker push $IMAGE_TAG

scripts/setenv.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+#
+# Copyright Red Hat
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script aliases the docker cli if the environment variable USE_PODMAN is set to true.
+
+# default value is false if USE_PODMAN is unset or null
+podman=${USE_PODMAN:-false}
+if [ ${podman} == true ]; then
+  alias docker=podman
+  echo "setting alias docker=podman"
+fi