code-server: php8 initial release

root/etc/cont-init.d/98-php8

@@ -0,0 +1,14 @@
+#!/usr/bin/with-contenv bash
+
+echo "**** adding ppa ondrej/php ****"
+apt-get update && apt-get install -y \
+  software-properties-common
+ppa="ppa:ondrej/php"
+if ! grep -q "^deb .*${ppa}" /etc/apt/sources.list /etc/apt/sources.list.d/*; then
+    add-apt-repository ${ppa} -y
+fi
+
+echo "**** installing php and composer ****"
+apt-get update && apt-get install -y \
+  composer \
+  php8.0