2.7.5 does not build

[primus852]

In Docker, this

ARG CADDY_VERSION=2.7.5

# Build Caddy with the Mercure and Vulcain modules
# Temporary fix for https://github.com/dunglas/mercure/issues/770
FROM caddy:${CADDY_VERSION}-builder-alpine AS app_caddy_builder

RUN xcaddy build ${CADDY_VERSION} --with github.com/dunglas/mercure/caddy --with github.com/dunglas/vulcain/caddy

leads to this

...
25.15 go: downloading github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
25.28 2023/10/12 21:58:23 [INFO] exec (timeout=0s): /usr/local/go/bin/go build -o /usr/bin/caddy -ldflags -w -s -trimpath 
55.08 # github.com/caddyserver/caddy/v2/modules/caddyhttp
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:462:9: cannot use func(eh parser.ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {…} (value of type func(eh parser.ExprHelper, target *expr.Expr, args []*expr.Expr) (*expr.Expr, *common.Error)) as parser.MacroExpander value in return statement
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:479:13: eh.GlobalCall undefined (type parser.ExprHelper has no field or method GlobalCall)
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:479:37: eh.Ident undefined (type parser.ExprHelper has no field or method Ident)
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:479:66: cannot use matchArgs (variable of type []*expr.Expr) as []ast.Expr value in argument to eh.NewList
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:488:9: cannot use func(eh parser.ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {…} (value of type func(eh parser.ExprHelper, target *expr.Expr, args []*expr.Expr) (*expr.Expr, *common.Error)) as parser.MacroExpander value in return statement
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:495:14: eh.GlobalCall undefined (type parser.ExprHelper has no field or method GlobalCall)
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:495:38: eh.Ident undefined (type parser.ExprHelper has no field or method Ident)
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:509:9: cannot use func(eh parser.ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {…} (value of type func(eh parser.ExprHelper, target *expr.Expr, args []*expr.Expr) (*expr.Expr, *common.Error)) as parser.MacroExpander value in return statement
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:545:14: eh.GlobalCall undefined (type parser.ExprHelper has no field or method GlobalCall)
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:545:38: eh.Ident undefined (type parser.ExprHelper has no field or method Ident)
55.08 /go/pkg/mod/github.com/caddyserver/caddy/v2@v2.7.5/modules/caddyhttp/celmatcher.go:545:38: too many errors
56.94 2023/10/12 21:58:54 [INFO] Skipping cleanup as requested; leaving folder intact: /tmp/buildenv_2023-10-12-2157.682781338
56.94 2023/10/12 21:58:54 [FATAL] exit status 1

I believe this was still working with 2.7.4 yesterday... I am a beginner with Caddy and so not understand what is happening. Any help is appreciated.

Thank you

[boncelor]

Similar crash here, I could build removing the Vulcain and Mercure extensions so some dependency mismatch going on with the latest update. I guess @dunglas will update them in Mercure

[kowap]

I have exactly the same problem. it was still working yesterday

[dunglas]

Could you try forcing the cel-go version to v0.15.1?

Maybe we xcaddy build --with github.com/dunglas/mercure/caddy --with github.com/dunglas/vulcain/caddy --with=github.com/google/cel-go@v0.15.1

[primus852]

Tried it, but results in

...
14.90   trying github.com/dunglas/mercure/caddy@v0.14.5
15.10 go: downloading github.com/dunglas/mercure/caddy v0.14.5
15.10 go: downloading github.com/dunglas/vulcain/caddy v0.4.3
15.22 go: downgraded github.com/dunglas/mercure/caddy v0.15.4 => v0.14.5
15.22 go: downgraded github.com/dunglas/vulcain/caddy v0.5.1 => v0.4.3
15.22 go: downgraded github.com/google/cel-go v0.18.1 => v0.15.1
15.22 2023/10/13 07:58:48 [INFO] exec (timeout=0s): /usr/local/go/bin/go get -d -v
15.30 go: downloading github.com/go-chi/chi v4.1.2+incompatible
15.30 go: downloading gopkg.in/natefinch/lumberjack.v2 v2.2.1
15.38 go: downloading golang.org/x/sync v0.4.0
15.38 go: downloading github.com/mastercactapus/proxyprotocol v0.0.4
15.38 go: downloading go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.42.0
15.38 go: downloading go.opentelemetry.io/contrib/propagators/autoprop v0.42.0
15.46 go: downloading go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.16.0
15.46 go: downloading go.opentelemetry.io/otel v1.16.0
15.46 go: downloading go.opentelemetry.io/otel/sdk v1.16.0
15.48 go: downloading go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.16.0
15.56 go: downloading go.opentelemetry.io/otel/trace v1.16.0
15.62 go: downloading github.com/BurntSushi/toml v1.3.2
15.62 go: downloading github.com/alecthomas/chroma/v2 v2.9.1
15.62 go: downloading github.com/yuin/goldmark v1.5.6
15.62 go: downloading github.com/yuin/goldmark-highlighting/v2 v2.0.0-20230729083705-37449abec8cc
15.63 go: downloading github.com/yuin/goldmark-highlighting v0.0.0-20220208100518-594be1970594
15.73 go: downloading github.com/go-chi/chi/v5 v5.0.10
15.73 go: downloading github.com/fxamacker/cbor/v2 v2.5.0
15.73 go: downloading github.com/google/go-tpm v0.9.0
15.77 go: downloading github.com/smallstep/go-attestation v0.4.4-0.20230627102604-cf579e53cbd2
15.80 go: downloading go.opentelemetry.io/contrib/propagators/aws v1.17.0
15.80 go: downloading go.opentelemetry.io/contrib/propagators/b3 v1.17.0
15.81 go: downloading go.opentelemetry.io/contrib/propagators/jaeger v1.17.0
15.81 go: downloading go.opentelemetry.io/contrib/propagators/ot v1.17.0
15.82 go: downloading go.opentelemetry.io/otel/metric v1.16.0
15.82 go: downloading go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.16.0
15.84 go: downloading go.opentelemetry.io/proto/otlp v0.19.0
15.85 go: downloading github.com/rs/xid v1.5.0
15.85 go: downloading github.com/sirupsen/logrus v1.9.3
15.90 go: downloading github.com/x448/float16 v0.8.4
15.90 go: downloading github.com/go-logr/logr v1.2.4
15.92 go: downloading github.com/cenkalti/backoff/v4 v4.2.1
15.93 go: downloading github.com/go-logr/stdr v1.2.2
15.94 go: downloading github.com/google/go-tspi v0.3.0
15.95 go: downloading github.com/alecthomas/chroma v0.10.0
15.99 go: downloading github.com/grpc-ecosystem/grpc-gateway/v2 v2.15.2
16.17 go: downloading github.com/grpc-ecosystem/grpc-gateway v1.16.0
16.25 go: downloading github.com/google/certificate-transparency-go v1.1.6
16.25 go: downloading github.com/dlclark/regexp2 v1.10.0
16.77 go: caddy imports
16.77   github.com/google/cel-go: cannot find module providing package github.com/google/cel-go
17.00 2023/10/13 07:58:50 [FATAL] exit status 1

Used RUN xcaddy build ${CADDY_VERSION} --with github.com/dunglas/mercure/caddy --with github.com/dunglas/vulcain/caddy --with github.com/google/cel-go@v0.15.1 with CADDY_VERSION=2.7.5

[dunglas]

The problem is that xcaddy installs github.com/google/cel-go v0.18.1 while Caddy only supports v0.15.1. I know why xcaddy does that because both Caddy, Mercure, and Vulcain explicitly require v0.15.1.

Maybe is xcaddy doing a go get -u somewhere?

[dunglas]

Ok, the problem was an inconsistency in the version of cel-go in github.com/dunglas/mercure/caddy. I just pushed a new release that should fix the issue.

[primus852]

Can confirm

xcaddy build v2.7.5 --with github.com/dunglas/mercure/caddy --with github.com/dunglas/vulcain/caddy

now builds successfully!

Thank you for the quick help, MUCH APPRECIATED!

[greenpau]

Encountered the same issue when upgraded from 2.7.4 to 2.7.5.

What is the version of cel-go that we should be using with caddy?

[francislavoie]

@greenpau as always, refer to https://github.com/caddyserver/caddy/blob/master/go.mod