add script and changes to signed pipeline

Author: QxBytes

.pipelines/build/dockerfiles/azure-ip-masq-merger.Dockerfile

@@ -0,0 +1,7 @@
+ARG ARCH
+
+FROM --platform=linux/${ARCH} mcr.microsoft.com/azurelinux/distroless/minimal:3.0 AS linux
+ARG ARTIFACT_DIR
+
+COPY ${ARTIFACT_DIR}/bin/azure-ip-masq-merger /azure-ip-masq-merger
+ENTRYPOINT ["/azure-ip-masq-merger"]

.pipelines/build/ob-prepare.steps.yaml

@@ -1,4 +1,3 @@
-
 steps:
 - template: utils/rename-dockerfile-references.steps.yaml
   parameters:
@@ -59,6 +58,10 @@ steps:
     echo "##vso[task.setvariable variable=azureIpamVersion;isOutput=true]$AZUREIPAMVERSION"
     echo "azureIpamVersion: $AZUREIPAMVERSION"
 
+    AZUREIPMASQMERGERVERSION=$(make azure-ip-masq-merger-version)
+    echo "##vso[task.setvariable variable=azureIpMasqMergerVersion;isOutput=true]$AZUREIPMASQMERGERVERSION"
+    echo "azureIpMasqMergerVersion: $AZUREIPMASQMERGERVERSION"
+
     CNIVERSION=$(make cni-version)
     echo "##vso[task.setvariable variable=cniVersion;isOutput=true]$CNIVERSION"
     echo "cniVersion: $CNIVERSION"

.pipelines/build/scripts/azure-ip-masq-merger.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+set -eux
+
+[[ $OS =~ windows ]] && { echo "azure-ip-masq-merger is not supported on Windows"; exit 1; }
+FILE_EXT=''
+
+export CGO_ENABLED=0 
+
+mkdir -p "$OUT_DIR"/bin
+mkdir -p "$OUT_DIR"/files
+
+pushd "$REPO_ROOT"/azure-ip-masq-merger
+  GOOS="$OS" go build -v -a -trimpath \
+    -o "$OUT_DIR"/bin/azure-ip-masq-merger"$FILE_EXT" \
+    -ldflags "-X github.com/Azure/azure-container-networking/azure-ip-masq-merger/internal/buildinfo.Version=$AZURE_IP_MASQ_MERGER_VERSION -X main.version=$AZURE_IP_MASQ_MERGER_VERSION" \
+    -gcflags="-dwarflocationlists=true" \
+    .
+popd