v2.10.0-beta.1: Caddy panics when using ECH's DNS sub-option #6885
Description
This global configuration does not work despite https://caddyserver.com/docs/caddyfile/options indicating it should:
{
ech ech.triplebit.net {
dns cloudflare {env.CF_ECH_API_TOKEN}
}
}
jonah@MacBook-Pro-4 caddy-build % ./caddy validate
2025/03/07 22:14:47.617 INFO maxprocs: Leaving GOMAXPROCS=10: CPU quota undefined
2025/03/07 22:14:47.617 INFO GOMEMLIMIT is updated {"package": "github.com/KimMachineGun/automemlimit/memlimit", "GOMEMLIMIT": 30923764531, "previous": 9223372036854775807}
2025/03/07 22:14:47.618 INFO using adjacent Caddyfile
2025/03/07 22:14:47.618 INFO using config from file {"file": "Caddyfile"}
2025/03/07 22:14:47.620 INFO adapted config to JSON {"adapter": "caddyfile"}
2025/03/07 22:14:47.621 INFO maxprocs: No GOMAXPROCS change to reset
panic: reflect: call of reflect.Value.Elem on struct Value
goroutine 1 [running]:
reflect.Value.Elem({0x10634fd00?, 0x140002e77d0?, 0x1400063c3e8?})
/opt/homebrew/Cellar/go/1.24.1/libexec/src/reflect/value.go:1265 +0x198
github.com/caddyserver/caddy/v2.Context.LoadModule({{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x1400044e1c0, 0x3, 0x4}, {0x0, 0x0, 0x0}, ...}, ...)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/context.go:180 +0xc0
github.com/caddyserver/caddy/v2/modules/caddytls.ECHDNSPublisher.Provision({{0x1400064a030, 0x25, 0x30}, {0x0, 0x0}, 0x0}, {{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, ...})
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/modules/caddytls/ech.go:598 +0xd4
github.com/caddyserver/caddy/v2.Context.LoadModuleByID({{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x1400044e1c0, 0x3, 0x4}, {0x0, 0x0, 0x0}, ...}, ...)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/context.go:402 +0x6b4
github.com/caddyserver/caddy/v2.Context.loadModuleMap({{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x1400055ab00, 0x2, 0x2}, {0x0, 0x0, 0x0}, ...}, ...)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/context.go:328 +0x1f4
github.com/caddyserver/caddy/v2.Context.loadModulesFromSomeMap({{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x1400055ab00, 0x2, 0x2}, {0x0, 0x0, 0x0}, ...}, ...)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/context.go:290 +0x108
github.com/caddyserver/caddy/v2.Context.LoadModule({{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x1400055ab00, 0x2, 0x2}, {0x0, 0x0, 0x0}, ...}, ...)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/context.go:265 +0x4cc
github.com/caddyserver/caddy/v2/modules/caddytls.(*ECH).Provision(0x1400044e100, {{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x1400055ab00, 0x2, 0x2}, {0x0, 0x0, ...}, ...})
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/modules/caddytls/ech.go:85 +0x168
github.com/caddyserver/caddy/v2/modules/caddytls.(*TLS).Provision(0x1400063c140, {{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x1400055ab00, 0x2, 0x2}, {0x0, 0x0, ...}, ...})
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/modules/caddytls/tls.go:188 +0x5b0
github.com/caddyserver/caddy/v2.Context.LoadModuleByID({{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x1400055ab00, 0x2, 0x2}, {0x0, 0x0, 0x0}, ...}, ...)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/context.go:402 +0x6b4
github.com/caddyserver/caddy/v2.Context.App({{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x140005aa220, 0x1, 0x1}, {0x0, 0x0, 0x0}, ...}, ...)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/context.go:478 +0x148
github.com/caddyserver/caddy/v2/modules/caddyhttp.(*App).Provision(0x1400063a270, {{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x140005aa220, 0x1, 0x1}, {0x0, 0x0, ...}, ...})
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/modules/caddyhttp/app.go:169 +0xa4
github.com/caddyserver/caddy/v2.Context.LoadModuleByID({{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x140005aa220, 0x1, 0x1}, {0x0, 0x0, 0x0}, ...}, ...)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/context.go:402 +0x6b4
github.com/caddyserver/caddy/v2.Context.App({{0x10649b998, 0x140005afbd0}, 0x14000690270, 0x14000204d80, {0x0, 0x0, 0x0}, {0x0, 0x0, 0x0}, ...}, ...)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/context.go:478 +0x148
github.com/caddyserver/caddy/v2.provisionContext.func3(...)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/caddy.go:545
github.com/caddyserver/caddy/v2.provisionContext(0x140005a7758?, 0x0)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/caddy.go:550 +0x5d0
github.com/caddyserver/caddy/v2.run(0x140005c7b80?, 0x0)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/caddy.go:400 +0x40
github.com/caddyserver/caddy/v2.Validate(0x14000204d80)
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/caddy.go:714 +0x24
github.com/caddyserver/caddy/v2/cmd.cmdValidateConfig({0x0?})
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/cmd/commandfuncs.go:551 +0x11c
github.com/caddyserver/caddy/v2/cmd.init.1.func8.WrapCommandFuncForCobra.1(0x14000535208, {0x105a32a6d?, 0x4?, 0x105a32a35?})
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/cmd/cobra.go:141 +0x34
github.com/spf13/cobra.(*Command).execute(0x14000535208, {0x107414a60, 0x0, 0x0})
/Users/jonah/go/pkg/mod/github.com/spf13/cobra@v1.9.1/command.go:1015 +0x828
github.com/spf13/cobra.(*Command).ExecuteC(0x1400034b208)
/Users/jonah/go/pkg/mod/github.com/spf13/cobra@v1.9.1/command.go:1148 +0x350
github.com/spf13/cobra.(*Command).Execute(...)
/Users/jonah/go/pkg/mod/github.com/spf13/cobra@v1.9.1/command.go:1071
github.com/caddyserver/caddy/v2/cmd.Main()
/Users/jonah/go/pkg/mod/github.com/caddyserver/caddy/v2@v2.10.0-beta.1/cmd/main.go:96 +0x3d0
main.main()
/Volumes/Git/caddy-build/main.go:15 +0x1c
This also happens when I specify the API key in the file, so the fact I'm using an environment variable is not relevant.
Just for the sake of completeness, the regular way to configure this does work fine for me:
{
dns cloudflare {env.CF_ECH_API_TOKEN}
ech ech.triplebit.net
}
👍