Unable to fulfill download request when try to run caddy upgrade or caddy add-package

henriquekdias · March 20, 2025, 12:18pm

1. The problem I’m having:

Whenever I try to run caddy upgrade or caddy add-package github.com/mholt/caddy-dynamicdns I got a error message saying download failed: HTTP 400: unable to fulfill download request. A few days ago I was able install caddy add-package github.com/caddy-dns/cloudflare with no error

2. Error messages and/or full log output:

caddy upgrade
2025/03/20 12:06:27.550 INFO    this executable will be replaced        {"path": "/usr/bin/caddy"}
2025/03/20 12:06:27.551 INFO    requesting build        {"os": "linux", "arch": "arm", "packages": ["github.com/caddy-dns/cloudflare@v0.0.0-20250228175314-1fb64108d4de"]}
Error: download failed: download failed: HTTP 400: unable to fulfill download request (id=3d1a79f5-bcb9-42b1-bda9-240de3cd2652)

and

caddy add-package github.com/mholt/caddy-dynamicdns
2025/03/20 11:40:59.481 INFO    this executable will be replaced        {"path": "/usr/bin/caddy"}
2025/03/20 11:40:59.487 INFO    requesting build        {"os": "linux", "arch": "arm", "packages": ["github.com/caddy-dns/cloudflare@v0.0.0-20250228175314-1fb64108d4de", "github.com/mholt/caddy-dynamicdns"]}
Error: download failed: download failed: HTTP 400: unable to fulfill download request (id=187aa2da-2d4b-4b47-8d75-0696d7eebed4)

3. Caddy version:

caddy --version
v2.9.1 h1:OEYiZ7DbCzAWVb6TNEkjRcSCRGHVoZsJinoDR/n9oaY=

4. How I installed and ran Caddy:

a. System environment:

cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

b. Command:

caddy upgrade

and

caddy add-package github.com/mholt/caddy-dynamicdns

d. My complete Caddy config:

{
        log caddy-log {
                output file /var/log/caddy/caddy.log
                format console {
                        time_format wall
                }
        }
}

https://centro.stream {
        log {
                output file /var/log/caddy/centro-stream.log
                format console {
                        time_format wall
                }
        }
        
        tls {
                dns cloudflare {env.CF_API_TOKEN}
        }

        respond "Hello Safe World"
}

5. Links to relevant resources:

henriquekdias · March 20, 2025, 2:51pm

By the way, even after running xcaddy build --with github.com/mholt/caddy-dynamicdns --output xcaddybuild.log and successful building Caddy, it only shows dns.providers.cloudflare under Non-standard modules after I execute caddy list-modules

Thanks

matt · March 20, 2025, 4:42pm

Does the error still happen?

That seems like something else is going on, there’s no way (?) it should show a module that you didn’t build. What are the minimal steps to reproduce this behavior including the command that lists the modules?

henriquekdias · March 20, 2025, 7:55pm

Hey Matt

Thanks for the quick reply

Yes, error still happening.

Follow list of commands to reproduce. After I install Caddy following Install — Caddy Documentation

> caddy add-package github.com/caddy-dns/cloudflare

> caddy list-modules
admin.api.load
admin.api.metrics
admin.api.pki
admin.api.reverse_proxy
caddy.adapters.caddyfile
caddy.config_loaders.http
caddy.filesystems
caddy.listeners.http_redirect
caddy.listeners.proxy_protocol
caddy.listeners.tls
caddy.logging.cores.mock
caddy.logging.encoders.append
caddy.logging.encoders.console
caddy.logging.encoders.filter
caddy.logging.encoders.filter.cookie
caddy.logging.encoders.filter.delete
caddy.logging.encoders.filter.hash
caddy.logging.encoders.filter.ip_mask
caddy.logging.encoders.filter.query
caddy.logging.encoders.filter.regexp
caddy.logging.encoders.filter.rename
caddy.logging.encoders.filter.replace
caddy.logging.encoders.json
caddy.logging.writers.discard
caddy.logging.writers.file
caddy.logging.writers.net
caddy.logging.writers.stderr
caddy.logging.writers.stdout
caddy.storage.file_system
events
http
http.authentication.hashes.bcrypt
http.authentication.providers.http_basic
http.encoders.gzip
http.encoders.zstd
http.handlers.acme_server
http.handlers.authentication
http.handlers.copy_response
http.handlers.copy_response_headers
http.handlers.encode
http.handlers.error
http.handlers.file_server
http.handlers.headers
http.handlers.intercept
http.handlers.invoke
http.handlers.log_append
http.handlers.map
http.handlers.metrics
http.handlers.push
http.handlers.request_body
http.handlers.reverse_proxy
http.handlers.rewrite
http.handlers.static_response
http.handlers.subroute
http.handlers.templates
http.handlers.tracing
http.handlers.vars
http.ip_sources.static
http.matchers.client_ip
http.matchers.expression
http.matchers.file
http.matchers.header
http.matchers.header_regexp
http.matchers.host
http.matchers.method
http.matchers.not
http.matchers.path
http.matchers.path_regexp
http.matchers.protocol
http.matchers.query
http.matchers.remote_ip
http.matchers.tls
http.matchers.vars
http.matchers.vars_regexp
http.precompressed.br
http.precompressed.gzip
http.precompressed.zstd
http.reverse_proxy.selection_policies.client_ip_hash
http.reverse_proxy.selection_policies.cookie
http.reverse_proxy.selection_policies.first
http.reverse_proxy.selection_policies.header
http.reverse_proxy.selection_policies.ip_hash
http.reverse_proxy.selection_policies.least_conn
http.reverse_proxy.selection_policies.query
http.reverse_proxy.selection_policies.random
http.reverse_proxy.selection_policies.random_choose
http.reverse_proxy.selection_policies.round_robin
http.reverse_proxy.selection_policies.uri_hash
http.reverse_proxy.selection_policies.weighted_round_robin
http.reverse_proxy.transport.fastcgi
http.reverse_proxy.transport.http
http.reverse_proxy.upstreams.a
http.reverse_proxy.upstreams.multi
http.reverse_proxy.upstreams.srv
pki
tls
tls.ca_pool.source.file
tls.ca_pool.source.http
tls.ca_pool.source.inline
tls.ca_pool.source.pki_intermediate
tls.ca_pool.source.pki_root
tls.ca_pool.source.storage
tls.certificates.automate
tls.certificates.load_files
tls.certificates.load_folders
tls.certificates.load_pem
tls.certificates.load_storage
tls.client_auth.verifier.leaf
tls.get_certificate.http
tls.get_certificate.tailscale
tls.handshake_match.local_ip
tls.handshake_match.remote_ip
tls.handshake_match.sni
tls.handshake_match.sni_regexp
tls.issuance.acme
tls.issuance.internal
tls.issuance.zerossl
tls.leaf_cert_loader.file
tls.leaf_cert_loader.folder
tls.leaf_cert_loader.pem
tls.leaf_cert_loader.storage
tls.permission.http
tls.stek.distributed
tls.stek.standard

  Standard modules: 124

dns.providers.cloudflare

  Non-standard modules: 1

  Unknown modules: 0

> caddy add-package github.com/mholt/caddy-dynamicdns
2025/03/20 19:01:32.867 INFO    this executable will be replaced        {"path": "/usr/bin/caddy"}
2025/03/20 19:01:32.867 INFO    requesting build        {"os": "linux", "arch": "arm", "packages": ["github.com/caddy-dns/cloudflare@v0.0.0-20250228175314-1fb64108d4de", "github.com/mholt/caddy-dynamicdns"]}
Error: download failed: download failed: HTTP 400: unable to fulfill download request (id=c30bea2b-1fc8-470e-87fb-ced71a04dc59)

After this I installed xcaddy following xcaddy/README.md at master · caddyserver/xcaddy · GitHub

> sudo xcaddy build --with github.com/mholt/caddy-dynamicdns --with github.com/caddy-dns/cloudflare --output xcaddybuild.log
2025/03/20 16:50:01 [INFO] absolute output file path: /home/pi/Projects/caddy/xcaddybuild.log
2025/03/20 16:50:01 [INFO] Temporary folder: /tmp/buildenv_2025-03-20-1650.1571723371
2025/03/20 16:50:01 [INFO] Writing main module: /tmp/buildenv_2025-03-20-1650.1571723371/main.go
package main

import (
        caddycmd "github.com/caddyserver/caddy/v2/cmd"

        // plug in Caddy modules here
        _ "github.com/caddyserver/caddy/v2/modules/standard"
        _ "github.com/mholt/caddy-dynamicdns"
        _ "github.com/caddy-dns/cloudflare"
)

func main() {
        caddycmd.Main()
}
2025/03/20 16:50:01 [INFO] Initializing Go module
2025/03/20 16:50:01 [INFO] exec (timeout=0s): /usr/local/go/bin/go mod init caddy
go: creating new go.mod: module caddy
go: to add module requirements and sums:
        go mod tidy
2025/03/20 16:50:01 [INFO] Pinning versions
2025/03/20 16:50:01 [INFO] exec (timeout=0s): /usr/local/go/bin/go get -v github.com/caddyserver/caddy/v2
go: added github.com/beorn7/perks v1.0.1
go: added github.com/caddyserver/caddy/v2 v2.9.1
go: added github.com/caddyserver/certmagic v0.21.6
go: added github.com/caddyserver/zerossl v0.1.3
go: added github.com/cespare/xxhash/v2 v2.3.0
go: added github.com/francoispqt/gojay v1.2.13
go: added github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572
go: added github.com/google/pprof v0.0.0-20231212022811-ec68065c825e
go: added github.com/google/uuid v1.6.0
go: added github.com/klauspost/cpuid/v2 v2.2.9
go: added github.com/libdns/libdns v0.2.2
go: added github.com/mholt/acmez/v3 v3.0.0
go: added github.com/miekg/dns v1.1.62
go: added github.com/onsi/ginkgo/v2 v2.13.2
go: added github.com/prometheus/client_golang v1.19.1
go: added github.com/prometheus/client_model v0.5.0
go: added github.com/prometheus/common v0.48.0
go: added github.com/prometheus/procfs v0.12.0
go: added github.com/quic-go/qpack v0.5.1
go: added github.com/quic-go/quic-go v0.48.2
go: added github.com/zeebo/blake3 v0.2.4
go: added go.uber.org/mock v0.4.0
go: added go.uber.org/multierr v1.11.0
go: added go.uber.org/zap v1.27.0
go: added go.uber.org/zap/exp v0.3.0
go: added golang.org/x/crypto v0.31.0
go: added golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842
go: added golang.org/x/mod v0.18.0
go: added golang.org/x/net v0.33.0
go: added golang.org/x/sync v0.10.0
go: added golang.org/x/sys v0.28.0
go: added golang.org/x/term v0.27.0
go: added golang.org/x/text v0.21.0
go: added golang.org/x/time v0.7.0
go: added golang.org/x/tools v0.22.0
go: added google.golang.org/protobuf v1.35.1
2025/03/20 16:50:10 [INFO] exec (timeout=0s): /usr/local/go/bin/go get -v github.com/mholt/caddy-dynamicdns github.com/caddyserver/caddy/v2
go: added github.com/mholt/caddy-dynamicdns v0.0.0-20241025234131-7c818ab3fc34
go: added gitlab.com/NebulousLabs/fastrand v0.0.0-20181126182046-603482d69e40
go: added gitlab.com/NebulousLabs/go-upnp v0.0.0-20211002182029-11da932010b6
2025/03/20 16:50:26 [INFO] exec (timeout=0s): /usr/local/go/bin/go get -v github.com/caddy-dns/cloudflare github.com/caddyserver/caddy/v2
go: accepting indirect upgrade from github.com/libdns/libdns@v0.2.2 to v0.2.3
go: added github.com/caddy-dns/cloudflare v0.0.0-20250228175314-1fb64108d4de
go: added github.com/libdns/cloudflare v0.1.3
go: upgraded github.com/libdns/libdns v0.2.2 => v0.2.3
2025/03/20 16:50:29 [INFO] exec (timeout=0s): /usr/local/go/bin/go get -v
2025/03/20 16:50:36 [INFO] Build environment ready
2025/03/20 16:50:36 [INFO] Building Caddy
2025/03/20 16:50:36 [INFO] exec (timeout=0s): /usr/local/go/bin/go mod tidy -e
2025/03/20 16:50:39 [INFO] exec (timeout=0s): /usr/local/go/bin/go build -o /home/pi/Projects/caddy/xcaddybuild.log -ldflags -w -s -trimpath -tags nobadger,nomysql,nopgx
2025/03/20 16:51:28 [INFO] Build complete: xcaddybuild.log
2025/03/20 16:51:28 [INFO] Cleaning up temporary folder: /tmp/buildenv_2025-03-20-1650.1571723371

./xcaddybuild.log version
v2.9.1 h1:OEYiZ7DbCzAWVb6TNEkjRcSCRGHVoZsJinoDR/n9oaY=

> caddy list-modules
admin.api.load
admin.api.metrics
admin.api.pki
admin.api.reverse_proxy
caddy.adapters.caddyfile
caddy.config_loaders.http
caddy.filesystems
caddy.listeners.http_redirect
caddy.listeners.proxy_protocol
caddy.listeners.tls
caddy.logging.cores.mock
caddy.logging.encoders.append
caddy.logging.encoders.console
caddy.logging.encoders.filter
caddy.logging.encoders.filter.cookie
caddy.logging.encoders.filter.delete
caddy.logging.encoders.filter.hash
caddy.logging.encoders.filter.ip_mask
caddy.logging.encoders.filter.query
caddy.logging.encoders.filter.regexp
caddy.logging.encoders.filter.rename
caddy.logging.encoders.filter.replace
caddy.logging.encoders.json
caddy.logging.writers.discard
caddy.logging.writers.file
caddy.logging.writers.net
caddy.logging.writers.stderr
caddy.logging.writers.stdout
caddy.storage.file_system
events
http
http.authentication.hashes.bcrypt
http.authentication.providers.http_basic
http.encoders.gzip
http.encoders.zstd
http.handlers.acme_server
http.handlers.authentication
http.handlers.copy_response
http.handlers.copy_response_headers
http.handlers.encode
http.handlers.error
http.handlers.file_server
http.handlers.headers
http.handlers.intercept
http.handlers.invoke
http.handlers.log_append
http.handlers.map
http.handlers.metrics
http.handlers.push
http.handlers.request_body
http.handlers.reverse_proxy
http.handlers.rewrite
http.handlers.static_response
http.handlers.subroute
http.handlers.templates
http.handlers.tracing
http.handlers.vars
http.ip_sources.static
http.matchers.client_ip
http.matchers.expression
http.matchers.file
http.matchers.header
http.matchers.header_regexp
http.matchers.host
http.matchers.method
http.matchers.not
http.matchers.path
http.matchers.path_regexp
http.matchers.protocol
http.matchers.query
http.matchers.remote_ip
http.matchers.tls
http.matchers.vars
http.matchers.vars_regexp
http.precompressed.br
http.precompressed.gzip
http.precompressed.zstd
http.reverse_proxy.selection_policies.client_ip_hash
http.reverse_proxy.selection_policies.cookie
http.reverse_proxy.selection_policies.first
http.reverse_proxy.selection_policies.header
http.reverse_proxy.selection_policies.ip_hash
http.reverse_proxy.selection_policies.least_conn
http.reverse_proxy.selection_policies.query
http.reverse_proxy.selection_policies.random
http.reverse_proxy.selection_policies.random_choose
http.reverse_proxy.selection_policies.round_robin
http.reverse_proxy.selection_policies.uri_hash
http.reverse_proxy.selection_policies.weighted_round_robin
http.reverse_proxy.transport.fastcgi
http.reverse_proxy.transport.http
http.reverse_proxy.upstreams.a
http.reverse_proxy.upstreams.multi
http.reverse_proxy.upstreams.srv
pki
tls
tls.ca_pool.source.file
tls.ca_pool.source.http
tls.ca_pool.source.inline
tls.ca_pool.source.pki_intermediate
tls.ca_pool.source.pki_root
tls.ca_pool.source.storage
tls.certificates.automate
tls.certificates.load_files
tls.certificates.load_folders
tls.certificates.load_pem
tls.certificates.load_storage
tls.client_auth.verifier.leaf
tls.get_certificate.http
tls.get_certificate.tailscale
tls.handshake_match.local_ip
tls.handshake_match.remote_ip
tls.handshake_match.sni
tls.handshake_match.sni_regexp
tls.issuance.acme
tls.issuance.internal
tls.issuance.zerossl
tls.leaf_cert_loader.file
tls.leaf_cert_loader.folder
tls.leaf_cert_loader.pem
tls.leaf_cert_loader.storage
tls.permission.http
tls.stek.distributed
tls.stek.standard

  Standard modules: 124

dns.providers.cloudflare

  Non-standard modules: 1

  Unknown modules: 0

I hope this help

Thanks

matt · March 20, 2025, 8:26pm

Ah, well:

caddy list-modules

is going to run the caddy in your PATH (run which caddy to see it), not the one built by xcaddy. To run that one, use ./caddy.

henriquekdias · March 20, 2025, 8:55pm

Silly me

I run ./caddy and it worked fine

Thanks so very much

Any idea why Error: download failed: download failed: HTTP 400: unable to fulfill download request???

matt · March 20, 2025, 9:08pm

Not sure yet… I’d have to look at the server logs in detail, but I haven’t had a chance yet.

henriquekdias · March 21, 2025, 11:22am

No problem. Thanks so much for the help

I think we can close this one.

Mohammed90 · March 21, 2025, 7:01pm

Our build server seems to have died due to OOM. We’re double-checking our service config.

system · April 20, 2025, 7:02pm

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