Dockerfile, README: caddy v2.8.4. xcaddy v0.4.2.

Author: joshix

Dockerfile

@@ -2,11 +2,11 @@ FROM golang:1.22 AS builder
 RUN mkdir /build
 WORKDIR /build
 RUN go install github.com/caddyserver/xcaddy/cmd/[email protected]
-RUN xcaddy build v2.7.6
+RUN xcaddy build v2.8.4
 
 FROM scratch
 LABEL maintainer="Josh Wood <[email protected]>"
-LABEL caddy-version="2.7.6"
+LABEL caddy-version="2.8.4"
 COPY rootfs /
 COPY --from=builder /build/caddy /bin/caddy
 USER 65534:65534

README.md

@@ -117,7 +117,7 @@ Preserved for reference. The build is no longer done out-of-band and the caddy b
 
 ```sh
 cd /tmp/caddyboxbuild
-GOOS=linux GOARCH=amd64 xcaddy build v2.7.6
+GOOS=linux GOARCH=amd64 xcaddy build v2.8.4
 file caddy
 cp caddy [...]/caddybox/rootfs/bin/caddy
 ```