-tls_certificate = ${if eq {SERVER}{server}{DIR/aux-fixed/cert1}fail}
-#tls_privatekey = ${if eq {SERVER}{server}{DIR/aux-fixed/cert1}fail}
+tls_certificate = ${if eq {SERVER}{server} \
+ {${if eq {DETAILS}{ta} \
+ {CDIR2/fullchain.pem}\
+ {CDIR1/cert1}}}\
+ fail}
+
+tls_privatekey = ${if eq {SERVER}{server} \
+ {${if eq {DETAILS}{ta} \
+ {CDIR2/server1.example.com.unlocked.key}\
+ {CDIR1/cert1}}}\
+ fail}