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fix(namecheap): use full app domain for CNAME instead of underscore wildcard #77

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fix(namecheap): use full app domain for CNAME instead of underscore wildcard #77

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19 changes: 18 additions & 1 deletion custom-domain/dstack-ingress/scripts/entrypoint.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -179,10 +179,27 @@ EOF

set_alias_record() {
local domain="$1"
local cname_target="$GATEWAY_DOMAIN"

# Namecheap DNS servers don't serve CNAME records pointing to underscore-prefixed domains.
# The record appears in the Namecheap API but isn't visible in public DNS.
# Workaround: use the full app-specific domain instead (resolves to the same IP).
if [[ "$DNS_PROVIDER" == "namecheap" && "$cname_target" == _* ]]; then
local app_id
if [[ -S /var/run/dstack.sock ]]; then
app_id=$(curl -s --unix-socket /var/run/dstack.sock http://localhost/Info | jq -j .app_id)
else
app_id=$(curl -s --unix-socket /var/run/tappd.sock http://localhost/prpc/Tappd.Info | jq -j .app_id)
fi
# Replace _.domain with appid-port.domain
cname_target="${app_id}-${PORT}.${cname_target#_.}"
echo "Namecheap workaround: using $cname_target instead of $GATEWAY_DOMAIN"
fi

echo "Setting alias record for $domain"
dnsman.py set_alias \
--domain "$domain" \
--content "$GATEWAY_DOMAIN"
--content "$cname_target"

if [ $? -ne 0 ]; then
echo "Error: Failed to set alias record for $domain"
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