I’m deploying Caddy to a Docker Swarm - single node.
Everything works, but when checking the Caddy logs I see a lot of these entries:
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:09:38 http: TLS handshake error from 10.255.0.2:34087: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:09:38 http: TLS handshake error from 10.255.0.2:34088: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:10:01 http: TLS handshake error from 10.255.0.2:35570: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:10:02 http: TLS handshake error from 10.255.0.2:35572: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:10:02 http: TLS handshake error from 10.255.0.2:35576: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:10:02 http: TLS handshake error from 10.255.0.2:35578: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:10:04 http: TLS handshake error from 10.255.0.2:63630: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:10:04 http: TLS handshake error from 10.255.0.2:63632: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:10:04 http: TLS handshake error from 10.255.0.2:63634: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:10:04 http: TLS handshake error from 10.255.0.2:63636: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:10:14 http: TLS handshake error from 10.255.0.2:57721: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:10:14 http: TLS handshake error from 10.255.0.2:57722: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:11:02 http: TLS handshake error from 10.255.0.2:35626: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:11:02 http: TLS handshake error from 10.255.0.2:35628: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:11:31 http: TLS handshake error from 10.255.0.2:58156: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:11:31 http: TLS handshake error from 10.255.0.2:58158: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:12:03 http: TLS handshake error from 10.255.0.2:35660: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:12:03 http: TLS handshake error from 10.255.0.2:35662: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:12:23 http: TLS handshake error from 10.255.0.2:58430: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:12:23 http: TLS handshake error from 10.255.0.2:58434: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:13:04 http: TLS handshake error from 10.255.0.2:35694: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:13:04 http: TLS handshake error from 10.255.0.2:35696: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:14:05 http: TLS handshake error from 10.255.0.2:35732: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:14:05 http: TLS handshake error from 10.255.0.2:35734: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:15:07 http: TLS handshake error from 10.255.0.2:35762: tls: no certificates configured
test_caddy.1.b8wtwtd6r0d5@REDACTED-DOMAIN.sh | 2018/12/07 06:15:07 http: TLS handshake error from 10.255.0.2:35764: tls: no certificates configured
My Caddyfile:
https://subdomain.domain.sh {
root /var/www
ext .html
log stdout
errors stdout
gzip
browse
tls {
dns cloudflare
}
# header / Strict-Transport-Security "max-age=31536000;"
}
My docker-stack.yml is pretty simple:
services:
caddy:
image: ...
volumes:
- caddy-cloudflare:/home/caddy/.caddy
- ./caddy/:/etc/caddy/
environment:
CLOUDFLARE_EMAIL: ...
CLOUDFLARE_API_KEY: ...
ports:
- "80:80"
- "443:443"
volumes:
caddy-cloudflare: {}