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caddytls: Configure custom DNS resolvers for DNS challenge (close #2476)

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And #3391

Maybe also related: #3664
This commit is contained in:
Matthew Holt 2020-08-21 20:30:14 -06:00
parent ecbc1f85c5
commit 744d04c258
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GPG key ID: 2A349DD577D586A5
4 changed files with 13 additions and 8 deletions
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4
go.mod
View file

@ -6,7 +6,7 @@ require (
github.com/Masterminds/sprig/v3 v3.1.0
github.com/alecthomas/chroma v0.8.0
github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a
github.com/caddyserver/certmagic v0.11.3-0.20200810220624-10a8b5c72339
github.com/caddyserver/certmagic v0.11.3-0.20200822022242-4fd8ae48ef87
github.com/dustin/go-humanize v1.0.1-0.20200219035652-afde56e7acac
github.com/go-chi/chi v4.1.2+incompatible
github.com/google/cel-go v0.5.1
@ -14,7 +14,7 @@ require (
github.com/klauspost/compress v1.10.10
github.com/klauspost/cpuid v1.2.5
github.com/lucas-clemente/quic-go v0.18.0
github.com/mholt/acmez v0.1.1-0.20200810215816-dbe88fc6cf09
github.com/mholt/acmez v0.1.1-0.20200811184240-dc9c5f05ed1e
github.com/naoina/go-stringutil v0.1.0 // indirect
github.com/naoina/toml v0.1.1
github.com/smallstep/certificates v0.15.1

12
go.sum
View file

@ -79,8 +79,8 @@ github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kB
github.com/bombsimon/wsl/v2 v2.0.0/go.mod h1:mf25kr/SqFEPhhcxW1+7pxzGlW+hIl/hYTKY95VwV8U=
github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625/go.mod h1:HYsPBTaaSFSlLx/70C2HPIMNZpVV8+vt/A+FMnYP11g=
github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
github.com/caddyserver/certmagic v0.11.3-0.20200810220624-10a8b5c72339 h1:wTD+Y63XoBtiTJhe/Xn7WLrwKenmjkt2WxH3FP+Y0DM=
github.com/caddyserver/certmagic v0.11.3-0.20200810220624-10a8b5c72339/go.mod h1:mqOzOvKa7UcC+TWbBLcP0ZLRut/xaaQBw0hRGWHBIkY=
github.com/caddyserver/certmagic v0.11.3-0.20200822022242-4fd8ae48ef87 h1:3aKxAswI/GxNUKS3v+NWaB+hUyBtfXyjAWlc2Go53T0=
github.com/caddyserver/certmagic v0.11.3-0.20200822022242-4fd8ae48ef87/go.mod h1:ru+9UfE7sgvPJgieBLSRz5S3xuCd6wlV0qEHErC+x1k=
github.com/census-instrumentation/opencensus-proto v0.2.0/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
@ -346,8 +346,8 @@ github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+
github.com/letsencrypt/pkcs11key v2.0.1-0.20170608213348-396559074696+incompatible/go.mod h1:iGYXKqDXt0cpBthCHdr9ZdsQwyGlYFh/+8xa4WzIQ34=
github.com/lib/pq v1.1.1/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/libdns/libdns v0.0.0-20200501023120-186724ffc821 h1:663opx/RKxiISi1ozf0WbvweQpYBgf34dx8hKSIau3w=
github.com/libdns/libdns v0.0.0-20200501023120-186724ffc821/go.mod h1:yQCXzk1lEZmmCPa857bnk4TsOiqYasqpyOEeSObbb40=
github.com/libdns/libdns v0.1.0 h1:0ctCOrVJsVzj53mop1angHp/pE3hmAhP7KiHvR0HD04=
github.com/libdns/libdns v0.1.0/go.mod h1:yQCXzk1lEZmmCPa857bnk4TsOiqYasqpyOEeSObbb40=
github.com/logrusorgru/aurora v0.0.0-20181002194514-a7b3b318ed4e/go.mod h1:7rIyQOR62GCctdiQpZ/zOJlFyk6y+94wXzv6RNZgaR4=
github.com/lucas-clemente/quic-go v0.18.0 h1:JhQDdqxdwdmGdKsKgXi1+coHRoGhvU6z0rNzOJqZ/4o=
github.com/lucas-clemente/quic-go v0.18.0/go.mod h1:yXttHsSNxQi8AWijC/vLP+OJczXqzHSOcJrM5ITUlCg=
@ -381,8 +381,8 @@ github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m
github.com/mattn/go-sqlite3 v1.10.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
github.com/mattn/goveralls v0.0.2/go.mod h1:8d1ZMHsd7fW6IRPKQh46F2WRpyib5/X4FOpevwGNQEw=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/mholt/acmez v0.1.1-0.20200810215816-dbe88fc6cf09 h1:J7NVJ46iBFeWsUc5aeVv8QNO2mLhI6rJKIbpAsH7d7g=
github.com/mholt/acmez v0.1.1-0.20200810215816-dbe88fc6cf09/go.mod h1:8qnn8QA/Ewx8E3ZSsmscqsIjhhpxuy9vqdgbX2ceceM=
github.com/mholt/acmez v0.1.1-0.20200811184240-dc9c5f05ed1e h1:F5E9CM0APrZtTfowJfvUBmrCjuHLfslZyFlNTEB7UV4=
github.com/mholt/acmez v0.1.1-0.20200811184240-dc9c5f05ed1e/go.mod h1:8qnn8QA/Ewx8E3ZSsmscqsIjhhpxuy9vqdgbX2ceceM=
github.com/microcosm-cc/bluemonday v1.0.1/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4=
github.com/miekg/dns v1.1.30 h1:Qww6FseFn8PRfw07jueqIXqodm0JKiiKuK0DeXSqfyo=
github.com/miekg/dns v1.1.30/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=

1
modules/caddytls/acmeissuer.go
View file

@ -112,6 +112,7 @@ func (iss *ACMEIssuer) Provision(ctx caddy.Context) error {
DNSProvider: val.(certmagic.ACMEDNSProvider),
TTL: time.Duration(iss.Challenges.DNS.TTL),
PropagationTimeout: time.Duration(iss.Challenges.DNS.PropagationTimeout),
Resolvers: iss.Challenges.DNS.Resolvers,
}
}
}

4
modules/caddytls/automation.go
View file

@ -295,6 +295,10 @@ type DNSChallengeConfig struct {
// How long to wait for DNS record to propagate.
PropagationTimeout caddy.Duration `json:"propagation_timeout,omitempty"`
// Custom DNS resolvers to prefer over system/built-in defaults.
// Often necessary to configure when using split-horizon DNS.
Resolvers []string `json:"resolvers,omitempty"`
solver acmez.Solver
}