acme_ca and the pic_ngo DNS credentials ({$PIC_NGO_DDNS_TOKEN},
{$PIC_NGO_DDNS_API}) were written as Caddy env-var placeholders, but the
Caddy container does not inherit the API container's environment, so the
substitutions always failed — Caddy saw bare directive names with no
arguments and rejected the Caddyfile.
- _global_acme_block: only emit the acme_ca directive when ACME_CA_URL is
actually set; omitting it makes Caddy default to Let's Encrypt production.
- _caddyfile_pic_ngo: embed the DDNS_TOTP_SECRET and DDNS_URL values directly
into the Caddyfile at write time rather than relying on Caddy env expansion.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
roof
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