diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7561cf5d3..d04a851f1 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -59,6 +59,7 @@ jobs:
     name: Build and push AMD64 images
     runs-on: ubuntu-latest
     needs: build-amd64-binaries
+    if: ${{ startsWith(github.ref, 'refs/heads/') || startsWith(github.ref, 'refs/tags/') }}
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
@@ -131,6 +132,7 @@ jobs:
     name: Build and push ARM64 images
     runs-on: longhorn-infra-arm64-runners
     needs: build-arm64-binaries
+    if: ${{ startsWith(github.ref, 'refs/heads/') || startsWith(github.ref, 'refs/tags/') }}
     steps:
     - name: Install make curl git
       run: |
diff --git a/Dockerfile.dapper b/Dockerfile.dapper
index e878ffd3f..b92f6b3b3 100644
--- a/Dockerfile.dapper
+++ b/Dockerfile.dapper
@@ -1,84 +1,69 @@
-FROM registry.suse.com/bci/bci-base:15.5
+FROM registry.suse.com/bci/golang:1.22
 
 ARG DAPPER_HOST_ARCH
 ARG http_proxy
 ARG https_proxy
+
 ENV HOST_ARCH=${DAPPER_HOST_ARCH} ARCH=${DAPPER_HOST_ARCH}
 ENV PROTOBUF_VER=3.18.0
-
-# Setup environment
-ENV PATH /go/bin:$PATH
 ENV DAPPER_DOCKER_SOCKET true
 ENV DAPPER_ENV TAG REPO SKIP_TASKS
 ENV DAPPER_OUTPUT bin coverage.out
 ENV DAPPER_RUN_ARGS --privileged --tmpfs /go/src/github.com/longhorn/longhorn-engine/integration/.venv:exec --tmpfs /go/src/github.com/longhorn/longhorn-engine/integration/.tox:exec -v /dev:/host/dev -v /proc:/host/proc
 ENV DAPPER_SOURCE /go/src/github.com/longhorn/longhorn-engine
+
 WORKDIR ${DAPPER_SOURCE}
+ENTRYPOINT ["./scripts/entry"]
+CMD ["ci"]
 
 RUN zypper -n addrepo --refresh https://download.opensuse.org/repositories/system:/snappy/SLE_15/system:snappy.repo && \
     zypper --gpg-auto-import-keys ref
 
-# Install packages
 RUN if [ ${ARCH} == "amd64" ]; then \
     zypper -n install autoconf libtool libunwind-devel; \
     fi
 
-RUN zypper -n install cmake wget curl git less file gcc \
-    libkmod-devel libnl3-devel linux-glibc-devel pkg-config psmisc tox qemu-tools fuse python3-devel \
+# TODO: use default python3 if SLE upgrade system python version to python3.11
+RUN zypper -n install cmake curl git less file gcc python311 python311-pip python311-devel \
+    libkmod-devel libnl3-devel linux-glibc-devel pkg-config psmisc qemu-tools fuse \
     bash-completion librdmacm1 librdmacm-utils libibverbs xsltproc docbook-xsl-stylesheets \
     perl-Config-General libaio-devel glibc-devel-static glibc-devel sg3_utils iptables libltdl7 \
     python3-pip uuid-runtime libdevmapper1_03 iproute2 jq unzip zlib-devel zlib-devel-static \
     rpm-build rdma-core-devel gcc-c++ docker && \
     rm -rf /var/cache/zypp/*
 
-# needed for ${!var} substitution
-RUN rm -f /bin/sh && ln -s /bin/bash /bin/sh
+# Install golangci-lint
+RUN curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.55.2
 
-RUN if [ ${ARCH} == "s390x" ]; then \
-    ln -s /usr/bin/gcc /usr/bin/s390x-linux-gnu-gcc;\
-    fi
-
-# Install Go & tools
-ENV GOLANG_ARCH_amd64=amd64 GOLANG_ARCH_arm64=arm64 GOLANG_ARCH_s390x=s390x GOLANG_ARCH=GOLANG_ARCH_${ARCH} \
-    GOPATH=/go PATH=/go/bin:/usr/local/go/bin:${PATH} SHELL=/bin/bash
-RUN wget -O - https://storage.googleapis.com/golang/go1.21.3.linux-${!GOLANG_ARCH}.tar.gz | tar -xzf - -C /usr/local && \
-    go install golang.org/x/lint/golint@latest
-
-# Minio
+# Install Minio
 ENV MINIO_URL_amd64=https://dl.min.io/server/minio/release/linux-amd64/archive/minio.RELEASE.2021-12-20T22-07-16Z \
     MINIO_URL_arm64=https://dl.min.io/server/minio/release/linux-arm64/archive/minio.RELEASE.2021-12-20T22-07-16Z \
-    MINIO_URL_s390x=https://dl.min.io/server/minio/release/linux-s390x/archive/minio.RELEASE.2021-12-20T22-07-16Z \
     MINIO_URL=MINIO_URL_${ARCH}
-
-RUN wget ${!MINIO_URL} -O /usr/bin/minio && chmod +x /usr/bin/minio
+RUN curl -sSfL ${!MINIO_URL} -o /usr/bin/minio && chmod +x /usr/bin/minio
 
 # Install libqcow
-RUN wget -O - https://s3-us-west-1.amazonaws.com/rancher-longhorn/libqcow-alpha-20181117.tar.gz | tar xvzf - -C /usr/src
-RUN cd /usr/src/libqcow-20181117 && \
-    ./configure
-RUN cd /usr/src/libqcow-20181117 && \
+RUN curl -sSfL https://s3-us-west-1.amazonaws.com/rancher-longhorn/libqcow-alpha-20181117.tar.gz | tar xvzf - -C /usr/src && \
+    cd /usr/src/libqcow-20181117 && \
+    ./configure && \
     make -j$(nproc) && \
-    make install
-RUN ldconfig
+    make install && \
+    ldconfig
 
-# GRPC dependencies
 # GRPC health probe
 ENV GRPC_HEALTH_PROBE_amd64=https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/v0.3.2/grpc_health_probe-linux-amd64 \
     GRPC_HEALTH_PROBE_arm64=https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/v0.3.2/grpc_health_probe-linux-arm64 \
-    GRPC_HEALTH_PROBE_s390x=https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/v0.3.2/grpc_health_probe-linux-s390x \
     GRPC_HEALTH_PROBE=GRPC_HEALTH_PROBE_${ARCH}
 
-RUN wget ${!GRPC_HEALTH_PROBE} -O /usr/local/bin/grpc_health_probe && \
+RUN curl -sSfL ${!GRPC_HEALTH_PROBE} -o /usr/local/bin/grpc_health_probe && \
     chmod +x /usr/local/bin/grpc_health_probe
 
 # protoc
 ENV PROTOC_amd64=https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOBUF_VER}/protoc-${PROTOBUF_VER}-linux-x86_64.zip \
     PROTOC_arm64=https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOBUF_VER}/protoc-${PROTOBUF_VER}-linux-aarch_64.zip \
-    PROTOC_s390x=https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOBUF_VER}/protoc-${PROTOBUF_VER}-linux-s390_64.zip \
     PROTOC=PROTOC_${ARCH}
 
 RUN cd /usr/src && \
-    wget ${!PROTOC} -O protoc_${ARCH}.zip && \
+    curl -sSfL ${!PROTOC} -o protoc_${ARCH}.zip && \
     unzip protoc_${ARCH}.zip -d /usr/local/
 
 # protoc-gen-go
@@ -87,18 +72,15 @@ RUN cd /go/src/github.com/ && \
     cd golang && \
     git clone https://github.com/golang/protobuf.git && \
     cd protobuf && \
-    git checkout v1.3.2 && \
+    git checkout v1.5.3 && \
     cd protoc-gen-go && \
     go build && \
     cp protoc-gen-go /usr/local/bin
 
-# python grpc-tools
-RUN if [ "${ARCH}" == "s390x" ]; then \
-    zypper -n in libopenssl-devel && \
-    GRPC_PYTHON_BUILD_SYSTEM_OPENSSL=True pip3 install grpcio==1.25.0 grpcio_tools==1.25.0 protobuf==${PROTOBUF_VER}; \
-    else \
-    pip3 install grpcio==1.25.0 grpcio_tools==1.25.0 protobuf==${PROTOBUF_VER}; \
-    fi
+# TODO: use default python3 if SLE upgrade system python version to python3.11
+RUN ln -sf /usr/bin/python3.11 /usr/bin/python3 & \
+    ln -sf /usr/bin/pip3.11 /usr/bin/pip3 && \
+    pip3 install grpcio==1.25.0 grpcio_tools==1.25.0 protobuf==${PROTOBUF_VER}
 
 # buf
 ENV GO111MODULE=on
@@ -122,13 +104,12 @@ RUN cd /usr/src && \
 
 # Build cache for tox
 RUN mkdir integration/
+
 COPY integration/setup.py integration/tox.ini integration/requirements.txt integration/flake8-requirements.txt integration/
+
 RUN cd integration && \
-    if [ "${ARCH}" == "s390x" ]; then \
-    GRPC_PYTHON_BUILD_SYSTEM_OPENSSL=True tox --notest;\
-    else \
-    tox --notest; \
-    fi
+    pip3 install tox==4.11.3; \
+    tox --notest
 
 # Build longhorn-instance-manager for integration testing
 RUN cd /go/src/github.com/longhorn && \
@@ -138,8 +119,3 @@ RUN cd /go/src/github.com/longhorn && \
     go build -o ./longhorn-instance-manager && \
     cp -r integration/rpc/ ${DAPPER_SOURCE}/integration/rpc/ && \
     cp longhorn-instance-manager /usr/local/bin
-
-VOLUME /tmp
-ENV TMPDIR /tmp
-ENTRYPOINT ["./scripts/entry"]
-CMD ["ci"]
diff --git a/integration/tox.ini b/integration/tox.ini
index 09fc6bdd0..442d31540 100644
--- a/integration/tox.ini
+++ b/integration/tox.ini
@@ -5,7 +5,7 @@ envlist=flake8, py3
 deps=-rrequirements.txt
 changedir={toxinidir}
 commands=py.test core data instance --durations=20 {posargs}
-passenv=AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_ENDPOINTS AWS_CERT BACKUPTARGETS TESTPREFIX
+passenv=AWS_ACCESS_KEY_ID,AWS_SECRET_ACCESS_KEY,AWS_ENDPOINTS,AWS_CERT,BACKUPTARGETS,TESTPREFIX
 
 [testenv:flake8]
 deps=-rflake8-requirements.txt