FABCI-107 Update multiarch script

In the existing script, NS (NameSpace) won't workfor both hyperledger
and Nexus. When you publish images to Nexus, NS uses two ports to pull
and push. So the NS won't work to publish multicarch images to nexus.

This patch add a new variable to publish images to nexus repository.

example:
NS_PULL=nexus3.hyperledger.org:10001/hyperledger
NS_PUSH=nexus3.hyperledger.org:10002/hyperledger
./multiarch.sh <user> <password>

Change-Id: I5137df6eef98aec231f1e16971cde02096d1a889
Signed-off-by: vijaypunugubati <vijaypunugubati@gmail.com>

Author: Vijaypunugubati

scripts/multiarch.sh

@@ -4,12 +4,18 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 #
+# This script publishes the fabric docker images to hyperledger dockerhub and nexus3 repositories.
+# when publishing the images to dockerhub the values for NS_PULL & NS_PUSH variables set to default values.
+# when publishing the images to nexus3 repository the values for NS_PULL & NS_PUSH variables set like below
+# NS_PULL=nexus3.hyperledger.org:10001/hyperledger & NS_PUSH=nexus3.hyperledger.org:10002/hyperledger
+# since nexus has separate port numbers to pull and push the images to nexus3.
 
 usage() {
   echo "Usage: $0 <username> <password>"
   echo "<username> and <password> credentials for the repository"
   echo "ENV:"
-  echo "  NS=$NS"
+  echo "  NS_PULL=$NS_PULL"
+  echo "  NS_PUSH=$NS_PUSH"
   echo "  VERSION=$VERSION"
   echo "  TWO_DIGIT_VERSION=$TWO_DIGIT_VERSION"
   exit 1
@@ -18,7 +24,8 @@ usage() {
 missing() {
   echo "Error: some image(s) missing from registry"
   echo "ENV:"
-  echo "  NS=$NS"
+  echo "  NS_PULL=$NS_PULL"
+  echo "  NS_PUSH=$NS_PUSH"
   echo "  VERSION=$VERSION"
   echo "  TWO_DIGIT_VERSION=$TWO_DIGIT_VERSION"
   exit 1
@@ -27,15 +34,17 @@ missing() {
 failed() {
   echo "Error: multiarch manifest push failed"
   echo "ENV:"
-  echo "  NS=$NS"
+  echo "  NS_PULL=$NS_PULL"
+  echo "  NS_PUSH=$NS_PUSH"
   echo "  VERSION=$VERSION"
   echo "  TWO_DIGIT_VERSION=$TWO_DIGIT_VERSION"
   exit 1
 }
 
 USER=${1:-nobody}
 PASSWORD=${2:-nohow}
-NS=${NS:-hyperledger}
+NS_PULL=${NS_PULL:-hyperledger}
+NS_PUSH=${NS_PUSH:-hyperledger}
 VERSION=${BASE_VERSION:-1.3.0}
 TWO_DIGIT_VERSION=${TWO_DIGIT_VERSION:-1.3}
 
@@ -54,28 +63,28 @@ IMAGES="fabric-baseos fabric-peer fabric-orderer fabric-ccenv fabric-tools"
 
 # check that all images have been published
 for image in ${IMAGES}; do
-  docker pull ${NS}/${image}:amd64-${VERSION} || missing
-  docker pull ${NS}/${image}:s390x-${VERSION} || missing
+  docker pull ${NS_PULL}/${image}:amd64-${VERSION} || missing
+  docker pull ${NS_PULL}/${image}:s390x-${VERSION} || missing
 done
 
 # push the multiarch manifest and tag with just $VERSION and 'latest'
 for image in ${IMAGES}; do
   manifest-tool --username ${USER} --password ${PASSWORD} push from-args\
-   --platforms linux/amd64,linux/s390x --template "${NS}/${image}:ARCH-${VERSION}"\
-   --target "${NS}/${image}:${VERSION}"
+   --platforms linux/amd64,linux/s390x --template "${NS_PULL}/${image}:ARCH-${VERSION}"\
+   --target "${NS_PUSH}/${image}:${VERSION}"
   manifest-tool --username ${USER} --password ${PASSWORD} push from-args\
-   --platforms linux/amd64,linux/s390x --template "${NS}/${image}:ARCH-${VERSION}"\
-   --target "${NS}/${image}:latest"
+   --platforms linux/amd64,linux/s390x --template "${NS_PULL}/${image}:ARCH-${VERSION}"\
+   --target "${NS_PUSH}/${image}:latest"
   manifest-tool --username ${USER} --password ${PASSWORD} push from-args\
-   --platforms linux/amd64,linux/s390x --template "${NS}/${image}:ARCH-${VERSION}"\
-   --target "${NS}/${image}:${TWO_DIGIT_VERSION}"
+   --platforms linux/amd64,linux/s390x --template "${NS_PULL}/${image}:ARCH-${VERSION}"\
+   --target "${NS_PUSH}/${image}:${TWO_DIGIT_VERSION}"
 done
 
 # test that manifest is working as expected
 for image in ${IMAGES}; do
-  docker pull ${NS}/${image}:${VERSION} || failed
-  docker pull ${NS}/${image}:${TWO_DIGIT_VERSION} || failed
-  docker pull ${NS}/${image}:latest || failed
+  docker pull ${NS_PULL}/${image}:${VERSION} || failed
+  docker pull ${NS_PULL}/${image}:${TWO_DIGIT_VERSION} || failed
+  docker pull ${NS_PULL}/${image}:latest || failed
 done
 
 echo "Successfully pushed multiarch manifest"