vmod-redis-doc-19.0-r1.apk

STEP 1: Have you installed this repository?

If not, run this installation script command:

curl -s https://packagecloud.io/install/repositories/varnishplus/varnish-oss-bundle/script.alpine.sh | sudo sh
copy
curl -s https://packagecloud.io/install/repositories/varnishplus/varnish-oss-bundle/script.alpine.sh | sudo sh

STEP 2: Install the package
sudo apk add vmod-redis-doc=19.0-r1

VMOD using the synchronous hiredis library API to access Redis servers from VCL. (documentation)