fix: Build Docker files

Author: mugeshsp

.pipelines/build/dockerfiles/cni.Dockerfile

@@ -3,7 +3,7 @@
 ARG ARCH
 
 # mcr.microsoft.com/oss/kubernetes/windows-host-process-containers-base-image:v1.0.0
-FROM --platform=windows/${ARCH} mcr.microsoft.com/oss/kubernetes/windows-host-process-containers-base-image@sha256:b4c9637e032f667c52d1eccfa31ad8c63f1b035e8639f3f48a510536bf34032b AS windows
+FROM --platform=windows/${ARCH}  AS windows
 ARG ARTIFACT_DIR .
 
 COPY ${ARTIFACT_DIR}/bin/dropgz.exe /dropgz.exe

.pipelines/build/dockerfiles/cns.Dockerfile

@@ -3,19 +3,19 @@
 ARG ARCH
 
 # mcr.microsoft.com/oss/kubernetes/windows-host-process-containers-base-image:v1.0.0
-FROM --platform=windows/${ARCH} mcr.microsoft.com/oss/kubernetes/windows-host-process-containers-base-image@sha256:b4c9637e032f667c52d1eccfa31ad8c63f1b035e8639f3f48a510536bf34032b AS windows
+FROM --platform=windows/${ARCH}  AS windows
 ARG ARTIFACT_DIR .
 
 COPY ${ARTIFACT_DIR}/bin/azure-cns.exe /azure-cns.exe
 ENTRYPOINT ["azure-cns.exe"]
 EXPOSE 10090
 
 # mcr.microsoft.com/azurelinux/base/core:3.0
-FROM --platform=linux/${ARCH} mcr.microsoft.com/azurelinux/base/core@sha256:c09a4e011a092a45b5c46ac5633253eb1e1106df028912b89cbe225d9061ef0b AS build-helper
+FROM --platform=linux/${ARCH}  AS build-helper
 RUN tdnf install -y iptables
 
 # mcr.microsoft.com/azurelinux/distroless/minimal:3.0
-FROM --platform=linux/${ARCH} mcr.microsoft.com/azurelinux/distroless/minimal@sha256:c37100f358ee19e62c60673c54fb43b83d43b2c305846e44b23b2e032e9caf30 AS linux
+FROM --platform=linux/${ARCH}  AS linux
 ARG ARTIFACT_DIR .
 
 COPY --from=build-helper /usr/sbin/*tables* /usr/sbin/

cni/Dockerfile

@@ -6,10 +6,10 @@ ARG OS_VERSION
 ARG OS
 
 # mcr.microsoft.com/oss/go/microsoft/golang:1.23-azurelinux3.0
-FROM --platform=linux/${ARCH} mcr.microsoft.com/oss/go/microsoft/golang@sha256:be1960a292d887e8c4e7e412d330f05feb7736e40a3706d8ad14d8009425cf2d AS go
+FROM --platform=linux/${ARCH}  AS go
 
 # mcr.microsoft.com/azurelinux/base/core:3.0
-FROM --platform=linux/${ARCH} mcr.microsoft.com/azurelinux/base/core@sha256:c09a4e011a092a45b5c46ac5633253eb1e1106df028912b89cbe225d9061ef0b AS mariner-core
+FROM --platform=linux/${ARCH}  AS mariner-core
 
 FROM go AS azure-vnet
 ARG OS
@@ -54,7 +54,7 @@ COPY --from=dropgz /go/bin/dropgz dropgz
 ENTRYPOINT [ "/dropgz" ]
 
 # mcr.microsoft.com/oss/kubernetes/windows-host-process-containers-base-image:v1.0.0
-FROM --platform=windows/${ARCH} mcr.microsoft.com/oss/kubernetes/windows-host-process-containers-base-image@sha256:b4c9637e032f667c52d1eccfa31ad8c63f1b035e8639f3f48a510536bf34032b as hpc
+FROM --platform=windows/${ARCH}  as hpc
 
 FROM hpc as windows
 COPY --from=dropgz /go/bin/dropgz dropgz.exe

cns/Dockerfile

@@ -5,13 +5,13 @@ ARG OS_VERSION
 ARG OS
 
 # mcr.microsoft.com/oss/go/microsoft/golang:1.23-azurelinux3.0
-FROM --platform=linux/${ARCH} mcr.microsoft.com/oss/go/microsoft/golang@sha256:be1960a292d887e8c4e7e412d330f05feb7736e40a3706d8ad14d8009425cf2d AS go
+FROM --platform=linux/${ARCH}  AS go
 
 # mcr.microsoft.com/azurelinux/base/core:3.0
-FROM mcr.microsoft.com/azurelinux/base/core@sha256:c09a4e011a092a45b5c46ac5633253eb1e1106df028912b89cbe225d9061ef0b AS mariner-core
+FROM  AS mariner-core
 
 # mcr.microsoft.com/azurelinux/distroless/minimal:3.0
-FROM mcr.microsoft.com/azurelinux/distroless/minimal@sha256:c37100f358ee19e62c60673c54fb43b83d43b2c305846e44b23b2e032e9caf30 AS mariner-distroless
+FROM  AS mariner-distroless
 
 FROM --platform=linux/${ARCH} go AS builder
 ARG OS
@@ -33,7 +33,7 @@ ENTRYPOINT [ "/usr/local/bin/azure-cns" ]
 EXPOSE 10090
 
 # mcr.microsoft.com/oss/kubernetes/windows-host-process-containers-base-image:v1.0.0
-FROM --platform=windows/${ARCH} mcr.microsoft.com/oss/kubernetes/windows-host-process-containers-base-image@sha256:b4c9637e032f667c52d1eccfa31ad8c63f1b035e8639f3f48a510536bf34032b as hpc
+FROM --platform=windows/${ARCH}  as hpc
 
 FROM hpc as windows
 COPY --from=builder /go/bin/azure-cns /azure-cns.exe