OCPBUGS-76549: fixes for dpu-intel-ipu-p4sdk hermetic build

Dockerfile.IntelP4.rhel

@@ -12,34 +12,31 @@ WORKDIR /src
 RUN dnf install -y \
    kmod \
    gettext \
-   python3-pip \
+   python3-devel \
    pciutils \
    libnl3 \
    libedit \
    net-tools \
    libatomic \
    libconfig \
    gcc gcc-c++ \
-   && dnf clean all
+   && dnf clean all \
+   && python3 -m ensurepip --upgrade
 
 RUN mkdir -p /opt/${P4_NAME}
 COPY cmd/intelvsp/$P4_NAME/* /opt/${P4_NAME}/
 COPY cmd/intelvsp/p4sdk/entrypoint.sh /
 COPY cmd/intelvsp/p4sdk/es2k_skip_p4.conf.template /
 
-
-RUN python3 -m pip install --no-cache-dir \
-    netaddr==1.2.1
-
 WORKDIR /
 
 # Add steps for cachito
 ENV REMOTE_SOURCES=${REMOTE_SOURCES:-"./openshift/"}
 ENV REMOTE_SOURCES_DIR=${REMOTE_SOURCES_DIR:-"/cachito"}
 COPY ${REMOTE_SOURCES} ${REMOTE_SOURCES_DIR}
-COPY openshift/install-dpu.sh .
-RUN chmod +x install-dpu.sh \
-    && ./install-dpu.sh
+COPY openshift/install-dpu-p4.sh .
+RUN chmod +x install-dpu-p4.sh \
+    && ./install-dpu-p4.sh
 
 # Remove packages which are only needed for cachito
 RUN dnf remove -y gcc gcc-c++ \

openshift/install-dpu-p4.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+set -euo pipefail
+
+PIP_OPTS="--no-cache-dir"
+# Check if we are building the image in the OSBS environment. If so, source the
+# env vars specific for enabling cachito.
+if [ -d ${REMOTE_SOURCES_DIR}/cachito-gomod-with-deps ]; then
+    source ${REMOTE_SOURCES_DIR}/cachito-gomod-with-deps/cachito.env
+    cd ${REMOTE_SOURCES_DIR}/cachito-gomod-with-deps/app/openshift
+    export GRPC_PYTHON_BUILD_EXT_COMPILER_JOBS=16
+else
+    cd  ${REMOTE_SOURCES_DIR}
+fi
+
+python3 -m pip install --upgrade pip
+
+# Install the packages in order of build dependency to avoid issues during installation.
+python3 -m pip install ${PIP_OPTS} -r requirements-p4.txt
+
+rm -rf ${REMOTE_SOURCES_DIR}

openshift/requirements-p4.txt

@@ -0,0 +1 @@
+netaddr==1.2.1