copy over from csa:

Author: Sarthak-Shaha

docker/Dockerfile

@@ -1,27 +1,12 @@
-FROM ghcr.io/project-chip/chip-build:latest AS build
-LABEL org.opencontainers.image.source=https://github.com/project-chip/connectedhomeip
+ARG VERSION=1
+FROM ghcr.io/project-chip/chip-build:${VERSION} as build
+LABEL org.opencontainers.image.source https://github.com/project-chip/connectedhomeip
 
+# Copy SLT manifests and Simplicity SDK keep-list from files-slt (build context: Dockerfile folder)
+COPY files-slt/sisdk-pkg.lock files-slt/wiseconnect-pkg.slt /tmp/
+COPY files-slt/simplicity_sdk_keep_folders.txt /tmp/keep_folders.txt
 
-# Copy SLT package manifests, lock (conan-repos without conan-aus for CI reachability), and Simplicity SDK keep-list (build context must be repo root)
-COPY scripts/setup/silabs/sisdk-pkg.lock scripts/setup/silabs/wiseconnect-pkg.slt docker/requirements.txt  /tmp/
-COPY scripts/setup/silabs/simplicity_sdk_keep_folders.txt /tmp/keep_folders.txt
-
-# GNU ARM Embedded toolchain, cross compiler for various platform builds
-RUN set -x \
-    && apt-get update \
-    && DEBIAN_FRONTEND=noninteractive apt-get install -fy --no-install-recommends \
-    gcc-arm-none-eabi \
-    binutils-arm-none-eabi \
-    openjdk-17-jdk-headless \
-    ccache \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/ \
-    # Install Python Packages
-    && pip3 install --break-system-packages -r /tmp/requirements.txt \
-    && rm /tmp/requirements.txt \
-    && : # last line
-
-# Setup SLT CLI (same as scripts/setup/silabs/install-packages.py) and install simplicity-sdk + wiseconnect via sdk-pkg.slt
+# Setup SLT CLI (same as scripts/setup/silabs/install-packages.py)
 RUN set -x \
     && mkdir -p /tmp/slt_install \
     && wget -q https://www.silabs.com/documents/public/software/slt-cli-1.0.1-linux-x64.zip -O /tmp/slt.zip \
@@ -30,9 +15,8 @@ RUN set -x \
     && chmod +x /tmp/slt_install/slt \
     && : # last line
 
-# Install packages via SLT (simplicity-sdk, wiseconnect, slc-cli) then add conan remote and copy to /tmp for final image
+# Install packages via SLT (simplicity-sdk, wiseconnect, slc-cli) and copy to /tmp for final image
 RUN set -x \
-    && /tmp/slt_install/slt update --self \
     && /tmp/slt_install/slt install -f /tmp/wiseconnect-pkg.slt \
     && /tmp/slt_install/slt install slc-cli \
     && cp -a $(/tmp/slt_install/slt where wiseconnect) /tmp/wifi_sdk \
@@ -42,18 +26,16 @@ RUN set -x \
     && rm -rf /tmp/slt_install /tmp/sisdk-pkg.lock /tmp/wiseconnect-pkg.slt \
     && : # last line
 
-# Trim Simplicity SDK: keep only top-level folders and .a libraries listed in simplicity_sdk_keep_folders.txt; remove all other .a
+# Trim Simplicity SDK: keep only folders and .a libs from simplicity_sdk_keep_folders.txt
 RUN grep -v '^#' /tmp/keep_folders.txt | grep -v '^$' | grep -v '\.a$' | sort -u > /tmp/keep_list.txt \
     && for d in /tmp/simplicity_sdk/*/ ; do \
     name=$(basename "$d"); \
     grep -qFx "$name" /tmp/keep_list.txt || rm -rf "$d"; \
     done \
     && grep -v '^#' /tmp/keep_folders.txt | grep -v '^$' | grep '\.a$' | sort -u > /tmp/keep_libs.txt \
-    && ( cd /tmp/simplicity_sdk && find . -name "*.a" -type f | while read f; do \
-    rel="${f#./}"; \
-    grep -qFx "$rel" /tmp/keep_libs.txt || rm -f "$f"; \
-    done ) \
-    && rm /tmp/keep_folders.txt /tmp/keep_list.txt /tmp/keep_libs.txt \
+    && ( cd /tmp/simplicity_sdk && find . -name "*.a" -type f | sed 's|^\./||' > /tmp/all_libs.txt ) \
+    && grep -vFxf /tmp/keep_libs.txt /tmp/all_libs.txt | sed 's|^|/tmp/simplicity_sdk/|' | xargs -r rm -f \
+    && rm /tmp/keep_folders.txt /tmp/keep_list.txt /tmp/keep_libs.txt /tmp/all_libs.txt \
     && find /tmp/simplicity_sdk/openthread -name "*efr32mg21*" -delete \
     && find /tmp/simplicity_sdk/boards/hardware/board/config -mindepth 1 -maxdepth 1 -type d ! \( -name '*brd4186c*' -o -name '*brd4187c*' -o -name '*brd4186a*' -o -name '*brd4187a*' -o -name '*brd2601b*' -o -name '*brd2703a*' -o -name '*brd2704a*' -o -name '*component*' \
     -o -name '*brd4316a*' -o -name '*brd4317a*' -o -name '*brd4318a*' -o -name '*brd4319a*' -o -name '*brd4116a*' -o -name '*brd4117a*' -o -name '*brd4118a*' -o -name '*brd2608a*' -o -name '*brd4350a*' -o -name '*brd4351a*' -o -name '*brd2709a*' \
@@ -66,9 +48,24 @@ RUN rm -rf /tmp/wifi_sdk/.git /tmp/wifi_sdk/examples /tmp/wifi_sdk/components/de
     && : # last line
 
 # Final SDK container for compiling using Silabs SDK
-FROM ghcr.io/project-chip/chip-build:latest
+FROM ghcr.io/project-chip/chip-build:${VERSION}
 
-ADD docker/requirements.txt /tmp/requirements.txt
+ADD requirements.txt /tmp/requirements.txt
+
+# GNU ARM Embedded toolchain, cross compiler for various platform builds
+RUN set -x \
+    && apt-get update \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -fy --no-install-recommends \
+    gcc-arm-none-eabi \
+    binutils-arm-none-eabi \
+    openjdk-17-jdk-headless \
+    ccache \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/ \
+    # Install Python Packages
+    && pip3 install --break-system-packages -r /tmp/requirements.txt \
+    && rm /tmp/requirements.txt \
+    && : # last line
 
 # Keep GSDK_ROOT name until rename transition to SISDK is completed
 ENV GSDK_ROOT=/opt/silabs/simplicity_sdk/

docker/build.sh

@@ -162,4 +162,4 @@ segger
 security_mbedtls
 security_mbedtls_source
 security_se_manager
-util
+util

…p/silabs/simplicity_sdk_keep_folders.txt …iles-slt/simplicity_sdk_keep_folders.txtscripts/setup/silabs/simplicity_sdk_keep_folders.txt renamed to docker/files-slt/simplicity_sdk_keep_folders.txt scripts/setup/silabs/simplicity_sdk_keep_folders.txt renamed to docker/files-slt/simplicity_sdk_keep_folders.txt

@@ -4,8 +4,4 @@ version = "0"
   simplicity-sdk = [{ installer = "conan", ref = "simplicity-sdk/2025.12.1-alpha@silabs#9f22e7efe2ff3fe28eabf4c78d205883", type = "sdk", version = "2025.12.1-alpha" }]
 
 [engine]
-  conan-repos = [
-    "https://conan.silabs.net",
-    "https://conan-prerelease.silabs.net/",
-    "https://conan-aus.silabs.net",
-  ]
+  conan-repos = ["https://conan-prerelease.silabs.net/"]