drone script fixes

drone/prepare-deliver.sh

@@ -1,11 +1,20 @@
 #!/usr/bin/env bash
 
-#use the right command to install packages
-if [ "$(command -v apt)" ]; then CMD=apt; else CMD=yum; fi
-
 echo "installing packages..."
-eval $CMD update > /dev/null
+#use the right command to install packages
-eval $CMD -y install openssh-client openssh-clients > /dev/null
+if [ "$(command -v apt)" ]; then
+  apt update > /dev/null
+  apt -y install openssh-client openssh-clients > /dev/null
+elif [ "$(command -v yum)" ]; then
+  yum update > /dev/null
+  yum -y install openssh-client openssh-clients > /dev/null
+elif [ "$(command -v apk)" ]; then
+  apk update > /dev/null
+  apk add openssh-client openssh-clients > /dev/null
+else
+  echo "could not find a package manager, anborting" >&2
+  exit 1
+fi
 echo "done."
 
 mkdir /root/.ssh