Build portable Linux native runtime

2026-08-22 03:29:57 -05:00
parent 057e1ed0e7
commit bd21884925
8 changed files with 183 additions and 1 deletions
@@ -0,0 +1,11 @@
+FROM php:8.5.9-fpm-alpine3.23
+
+RUN apk add --no-cache --repository=https://dl-cdn.alpinelinux.org/alpine/edge/main \
+    nginx=1.30.4-r3 mariadb=11.8.8-r0 mariadb-client=11.8.8-r0 bash file pax-utils \
+  && mkdir -p /stage/root /stage/bin /stage/lib
+
+COPY stage-runtime.sh /usr/local/bin/stage-runtime
+RUN chmod +x /usr/local/bin/stage-runtime && /usr/local/bin/stage-runtime
+
+FROM scratch AS export
+COPY --from=0 /stage/ /
@@ -0,0 +1,79 @@
+#!/bin/sh
+set -eu
+
+stage=/stage
+root="$stage/root"
+
+copy_file() {
+  source_path="$1"
+  destination="$root$source_path"
+  mkdir -p "$(dirname "$destination")"
+  cp -L "$source_path" "$destination"
+}
+
+copy_binary_and_libraries() {
+  binary="$1"
+  copy_file "$binary"
+  scanelf --needed --nobanner "$binary" | awk '{ print $2 }' | tr ',' '\n' | while read -r library; do
+    [ -n "$library" ] || continue
+    library_path=$(find /lib /usr/lib /usr/local/lib -name "$library" -print -quit)
+    [ -n "$library_path" ] || { echo "Missing library $library for $binary" >&2; exit 1; }
+    copy_file "$library_path"
+  done
+}
+
+copy_binary_and_libraries /usr/local/bin/php
+copy_binary_and_libraries /usr/local/sbin/php-fpm
+copy_binary_and_libraries /usr/sbin/nginx
+copy_binary_and_libraries /usr/bin/mariadbd
+copy_binary_and_libraries /usr/bin/mariadb-install-db
+mkdir -p "$root/lib" "$root/usr/lib"
+cp -aL /lib/. "$root/lib/"
+cp -aL /usr/lib/. "$root/usr/lib/"
+
+mkdir -p "$root/usr/local/lib/php/extensions"
+if [ -d /usr/local/lib/php/extensions ]; then cp -a /usr/local/lib/php/extensions/. "$root/usr/local/lib/php/extensions/"; fi
+mkdir -p "$root/usr/local/etc"
+cp -a /usr/local/etc/php "$root/usr/local/etc/"
+mkdir -p "$root/usr/share"
+if [ -d /usr/share/mariadb ]; then cp -a /usr/share/mariadb "$root/usr/share/"; fi
+
+cat > "$stage/bin/aurora-exec" <<'EOF'
+#!/bin/sh
+set -eu
+runtime_root=$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)
+target="$1"
+shift
+export LD_LIBRARY_PATH="$runtime_root/root/lib:$runtime_root/root/usr/lib:$runtime_root/root/usr/local/lib"
+export PHPRC="$runtime_root/root/usr/local/etc/php"
+export PHP_INI_SCAN_DIR="$runtime_root/root/usr/local/etc/php/conf.d"
+exec "$runtime_root/root/lib/ld-musl-x86_64.so.1" --library-path "$LD_LIBRARY_PATH" "$runtime_root/root$target" "$@"
+EOF
+chmod +x "$stage/bin/aurora-exec"
+
+for entry in 'php:/usr/local/bin/php' 'php-fpm:/usr/local/sbin/php-fpm' 'nginx:/usr/sbin/nginx' 'mariadbd:/usr/bin/mariadbd' 'mariadb-install-db:/usr/bin/mariadb-install-db'; do
+  name=${entry%%:*}
+  target=${entry#*:}
+  cat > "$stage/bin/$name" <<EOF
+#!/bin/sh
+exec "\$(dirname "\$0")/aurora-exec" "$target" "\$@"
+EOF
+  chmod +x "$stage/bin/$name"
+done
+
+php_version=$(php -r 'echo PHP_VERSION;')
+nginx_version=$(nginx -v 2>&1 | sed 's#nginx version: nginx/##')
+mariadb_version=$(mariadbd --version | sed -n 's/.* Ver \([^ -]*\).*/\1/p')
+cat > "$stage/runtime.template.json" <<EOF
+{
+  "schema": 1,
+  "runtimeVersion": "0.1.0",
+  "platform": "linux",
+  "arch": "x64",
+  "components": [
+    { "id": "php", "version": "$php_version", "executable": "bin/php-fpm" },
+    { "id": "nginx", "version": "$nginx_version", "executable": "bin/nginx" },
+    { "id": "mariadb", "version": "$mariadb_version", "executable": "bin/mariadbd" }
+  ]
+}
+EOF