Add ARMv6 static builds. (#16853)

.github/workflows/build.yml

@@ -152,6 +152,7 @@ jobs:
       matrix:
         arch:
           - x86_64
+          - armv6l
           - armv7l
           - aarch64
           - ppc64le

packaging/PLATFORM_SUPPORT.md

@@ -177,9 +177,9 @@ means that they generally do not support non-local username mappings or exotic n
 
 We currently provide static builds for the following CPU architectures:
 
-- 32-bit x86
 - 64-bit x86
 - ARMv7
+- ARMv6
 - AArch64
 - POWER8+
 
@@ -189,3 +189,8 @@ We currently provide static builds for the following CPU architectures:
 
 Our IPMI collector is based on FreeIPMI. Due to upstream limitations in FreeIPMI, we are unable to support our
 IPMI collector on POWER-based hardware.
+
+### Systemd
+
+Many of our systemd integrations are not supported in our static builds. This is due to a general refusal by the
+systemd developers to support static linking (or any C runtime other than glibc), and is not something we can resolve.

packaging/installer/kickstart.sh

@@ -24,7 +24,7 @@ PATH="${PATH}:/usr/local/bin:/usr/local/sbin"
 REPOCONFIG_DEB_VERSION="2-2"
 REPOCONFIG_RPM_VERSION="2-2"
 START_TIME="$(date +%s)"
-STATIC_INSTALL_ARCHES="x86_64 armv7l aarch64 ppc64le"
+STATIC_INSTALL_ARCHES="x86_64 armv7l armv6l aarch64 ppc64le"
 
 # ======================================================================
 # URLs used throughout the script
@@ -1902,9 +1902,13 @@ prepare_offline_install_source() {
         for arch in ${STATIC_INSTALL_ARCHES}; do
           set_static_archive_urls "${SELECTED_RELEASE_CHANNEL}" "${arch}"
 
-          progress "Fetching ${NETDATA_STATIC_ARCHIVE_URL}"
-          if ! download "${NETDATA_STATIC_ARCHIVE_URL}" "netdata-${arch}-latest.gz.run"; then
-            warning "Failed to download static installer archive for ${arch}. ${BADNET_MSG}."
+          if check_for_remote_file "${NETDATA_STATIC_ARCH_URL}"; then
+            progress "Fetching ${NETDATA_STATIC_ARCHIVE_URL}"
+            if ! download "${NETDATA_STATIC_ARCHIVE_URL}" "netdata-${arch}-latest.gz.run"; then
+                warning "Failed to download static installer archive for ${arch}. ${BADNET_MSG}."
+            fi
+          else
+            progress "Skipping ${NETDATA_STATIC_ARCHIVE_URL} as it does not exist on the server."
           fi
         done
         legacy=0

packaging/makeself/build-static.sh

@@ -26,8 +26,13 @@ fi
 
 DOCKER_IMAGE_NAME="netdata/static-builder:v1"
 
-if [ "${BUILDARCH}" != "$(uname -m)" ] && [ "$(uname -m)" = 'x86_64' ] && [ -z "${SKIP_EMULATION}" ]; then
-    ${docker} run --rm --privileged multiarch/qemu-user-static --reset -p yes || exit 1
+if [ "${BUILDARCH}" != "$(uname -m)" ] && [ -z "${SKIP_EMULATION}" ]; then
+    if [ "$(uname -m)" = "x86_64" ]; then
+        ${docker} run --rm --privileged multiarch/qemu-user-static --reset -p yes || exit 1
+    else
+        echo "Automatic cross-architecture builds are only supported on x86_64 hosts."
+        exit 1
+    fi
 fi
 
 if ${docker} inspect "${DOCKER_IMAGE_NAME}" > /dev/null 2>&1; then
@@ -49,10 +54,10 @@ fi
 # Run the build script inside the container
 if [ -t 1 ]; then
   run ${docker} run --rm -e BUILDARCH="${BUILDARCH}" -a stdin -a stdout -a stderr -i -t -v "$(pwd)":/netdata:rw \
-    "${DOCKER_IMAGE_NAME}" \
+    --platform "${platform}" "${DOCKER_IMAGE_NAME}" \
     /bin/sh /netdata/packaging/makeself/build.sh "${@}"
 else
   run ${docker} run --rm -e BUILDARCH="${BUILDARCH}" -v "$(pwd)":/netdata:rw \
-    -e GITHUB_ACTIONS="${GITHUB_ACTIONS}" "${DOCKER_IMAGE_NAME}" \
+    -e GITHUB_ACTIONS="${GITHUB_ACTIONS}" --platform "${platform}" "${DOCKER_IMAGE_NAME}" \
     /bin/sh /netdata/packaging/makeself/build.sh "${@}"
 fi

packaging/makeself/uname2platform.sh

@@ -8,6 +8,7 @@ BUILDARCH="${1}"
 
 case "${BUILDARCH}" in
   x86_64) echo "linux/amd64" ;;
+  armv6l) echo "linux/arm/v6" ;;
   armv7l) echo "linux/arm/v7" ;;
   aarch64) echo "linux/arm64/v8" ;;
   ppc64le) echo "linux/ppc64le" ;;