Merge "retry apt operations to avoid network issues"

stack.sh

@@ -211,6 +211,11 @@ sudo mv $TEMPFILE /etc/sudoers.d/50_stack_sh
 # Additional repos
 # ----------------
 
+# For debian/ubuntu make apt attempt to retry network ops on it's own
+if is_ubuntu; then
+    echo 'APT::Acquire::Retries "20";' | sudo tee /etc/apt/apt.conf.d/80retry
+fi
+
 # Some distros need to add repos beyond the defaults provided by the vendor
 # to pick up required packages.