Does not build with CoreDNS 1.11.1

[p3lim]

Using your image I tried to bump the CoreDNS version to 1.11.1.
CoreDNS requires Go 1.20 to compile, so I bumped that too.
The Go build images don't come with gcc any more, so I added build-base.

diff --git a/Dockerfile b/Dockerfile
index 559a327..1b729ee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,16 +1,18 @@
-ARG GOLANG_VERS=1.18
+ARG GOLANG_VERS=1.20
 ARG ALPINE_VERS=3.17

 FROM golang:${GOLANG_VERS}-alpine${ALPINE_VERS}

 ARG CGO_ENABLED=1
 ARG PLUGIN_PRIO=50
-ARG COREDNS_VERS=1.10.1
+ARG COREDNS_VERS=1.11.1

 RUN go mod download github.com/coredns/coredns@v${COREDNS_VERS}
 WORKDIR $GOPATH/pkg/mod/github.com/coredns/coredns@v${COREDNS_VERS}
 RUN go mod download

+RUN apk add --no-cache build-base
+
 COPY --link ./ $GOPATH/pkg/mod/github.com/kevinjqiu/coredns-dockerdiscovery
 RUN sed -i "s/^#.*//g; /^$/d; $PLUGIN_PRIO i docker:dockerdiscovery" plugin.cfg \
     && go mod edit -replace\

Following that I get this error when building:

 => ERROR [stage-0 7/7] RUN sed -i "s/^#.*//g; /^$/d; 50 i docker:dockerdiscovery" plugin.cfg     && go mod edit  18.8s
------
 > [stage-0 7/7] RUN sed -i "s/^#.*//g; /^$/d; 50 i docker:dockerdiscovery" plugin.cfg     && go mod edit -replace    dockerdiscovery=/go/pkg/mod/github.com/kevinjqiu/coredns-dockerdiscovery    && go generate coredns.go && go build -mod=mod -o=/usr/local/bin/coredns &&     apk --no-cache add binutils && strip -vs /usr/local/bin/coredns:
18.45 # github.com/coredns/coredns/core/plugin
18.45 core/plugin/zplugin.go:7:4: could not import dockerdiscovery (open : no such file or directory)
------
Dockerfile:17
--------------------
  16 |     COPY --link ./ $GOPATH/pkg/mod/github.com/kevinjqiu/coredns-dockerdiscovery
  17 | >>> RUN sed -i "s/^#.*//g; /^$/d; $PLUGIN_PRIO i docker:dockerdiscovery" plugin.cfg \
  18 | >>>     && go mod edit -replace\
  19 | >>>     dockerdiscovery=$GOPATH/pkg/mod/github.com/kevinjqiu/coredns-dockerdiscovery\
  20 | >>>     && go generate coredns.go && go build -mod=mod -o=/usr/local/bin/coredns && \
  21 | >>>     apk --no-cache add binutils && strip -vs /usr/local/bin/coredns
  22 |
--------------------
ERROR: failed to solve: process "/bin/sh -c sed -i \"s/^#.*//g; /^$/d; $PLUGIN_PRIO i docker:dockerdiscovery\" plugin.cfg     && go mod edit -replace    dockerdiscovery=$GOPATH/pkg/mod/github.com/kevinjqiu/coredns-dockerdiscovery    && go generate coredns.go && go build -mod=mod -o=/usr/local/bin/coredns &&     apk --no-cache add binutils && strip -vs /usr/local/bin/coredns" did not complete successfully: exit code: 1

[u6bkep]

I have a branch that may fix this: https://github.com/u6bkep/coredns-dockerdiscovery/tree/bug_fixes

give it a try and let me know.