1. The problem I’m having:
I want to have a Caddyfile that supports both local development (via localhost) and live environments (via www.foo.com).
I additionally want to redirect requests to foo.com to www.foo.com.
The site address of the “live” environment is provided as a variable. ${CADDY_HOST}. I would set the variable value equal to foo.com or crypter.dev.
Now the problem occurs when CADDY_HOST=localhost. This creates an ambiguous reference (see Caddyfile below).
How should I approach this? I don’t need the rewrite rule to apply to localhost, but I can’t find any syntax that would let Caddy ignore the rewrite for specific site addresses.
2. Error messages and/or full log output:
ambiguous site definition: localhost
3. Caddy version:
caddy:2.6-alpine
4. How I installed and ran Caddy:
FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build
WORKDIR /source/
RUN dotnet tool install --global dotnet-references
ENV PATH="${PATH}:/root/.dotnet/tools"
COPY *.sln ./
COPY */*.csproj ./
RUN dotnet-references fix --entry-point ./Crypter.sln --working-directory ./ --remove-unreferenced-project-files
RUN dotnet restore Crypter.Web
COPY ./ ./
RUN dotnet publish Crypter.Web --no-restore --configuration release --output /app/
FROM caddy:2.6-alpine AS webhost
COPY Crypter.Web/Caddyfile /etc/caddy/Caddyfile
COPY --from=build /app/wwwroot/ /srv/
EXPOSE 80
EXPOSE 443
a. System environment:
Docker running on Windows 10
b. Command:
docker-compose --profile dev up
c. Service/unit/compose file:
version: "3.9"
services:
api:
profiles:
- web
- dev
image: ghcr.io/crypter-file-transfer/crypter_api:latest
build:
context: .
dockerfile: Crypter.API.Dockerfile
expose:
- "80"
environment:
ASPNETCORE_ENVIRONMENT: ${ASPNETCORE_ENVIRONMENT-Production}
ASPNETCORE_URLS: http://0.0.0.0:80
ASPNETCORE_TransferStorageSettings__Location: /mnt/storage
CUSTOMCONNSTR_DefaultConnection: host=${POSTGRES_HOST:-db};database=crypter;user id=crypter_user;pwd=${POSTGRES_USER_PASSWORD:-dev};
CUSTOMCONNSTR_HangfireConnection: host=${POSTGRES_HANGFIRE_HOST:-db};database=crypter_hangfire;user id=crypter_hangfire_user;pwd=${POSTGRES_HANGFIRE_USER_PASSWORD:-dev};
volumes:
- ${API_STORAGE_PATH}:/mnt/storage
- ${API_SETTINGS_FILE}:/app/appsettings.json
restart: always
web:
profiles:
- web
- dev
image: ghcr.io/crypter-file-transfer/crypter_web:latest
build:
context: .
dockerfile: Crypter.Web.Dockerfile
ports:
- ${WEB_BIND_PORT-80}:80
- ${WEB_SECURE_BIND_PORT-443}:443
environment:
CRYPTER_API_BASE: http://api:80
CADDY_HOST: ${CADDY_HOST}
CADDY_OPTIONS: ${CADDY_OPTIONS}
CADDY_TLS_VOLUME: ${CADDY_TLS_VOLUME}
volumes:
- ./Containers/Caddy/data:/data
- ${CADDY_TLS_VOLUME}:/mnt/tls
restart: always
d. My complete Caddy config:
localhost www.{$CADDY_HOST} {
{$CADDY_OPTIONS}
log {
output file /var/log/caddy
format console
}
handle /api/* {
reverse_proxy {$CRYPTER_API_BASE}
}
handle {
root * /srv
try_files {path} /index.html
header ?Content-Type "application/octet-stream"
file_server {
precompressed br gzip
}
}
}
{$CADDY_HOST} {
redir https://www.{host}{uri} permanent
}