1. Caddy version:
v2.6.4 h1:2hwYqiRwk1tf3VruhMpLcYTg+11fCdr8S3jhNAdnPy8=
2. How I installed, and run Caddy:
Via docker-compose, with caddy:2.6.4-alpine image
a. System environment:
Docker Desktop v 4.8.1
MacOS v 13.2.1
b. Command:
docker compose --file docker-compose.dev.yml up caddy -d
c. Service/unit/compose file:
version: "3"
name: "tweb800"
services:
postgres:
image: postgres:alpine3.17
environment:
- POSTGRES_USER=postgres
- POSTGRES_DB=symfonyweb800
- POSTGRES_PASSWORD=postgresql__password
ports:
- "5432:5432"
volumes:
- postgres:/var/lib/postgresql/data
- ./db:/data
networks:
- default
# main symfony app
main_app:
build:
context: ./backend
target: development
args:
- APP_NAME=main_app
tty: true
ports:
- "${MAIN_BACKEND_PORT}:${MAIN_BACKEND_PORT}" #activities
links :
- postgres
volumes:
- ./backend:/code
working_dir: /code/main_app
networks:
- main_app
# server
caddy:
image: caddy:2.6.4-alpine
volumes:
- ./backend/misc/caddy/Caddyfile:/etc/caddy/Caddyfile:ro
- caddy_data:/data
- caddy_config:/config
ports:
# HTTP
- target: 80
published: 80
protocol: tcp
# HTTPS
- target: 443
published: 443
protocol: tcp
# HTTP/3
- target: 443
published: 443
protocol: udp
depends_on:
- main_app
- activities
- hotels
- maps
- restaurants
environment:
MAIN_BACKEND_PORT: ${MAIN_BACKEND_PORT}
ACTIVITIES_BACKEND_PORT: ${ACTIVITIES_BACKEND_PORT}
HOTELS_BACKEND_PORT: ${HOTELS_BACKEND_PORT}
MAPS_BACKEND_PORT: ${MAPS_BACKEND_PORT}
RESTAURANTS_BACKEND_PORT: ${RESTAURANTS_BACKEND_PORT}
restart: unless-stopped
# MICROSERVICES
activities:
build:
context: ./backend
target: development
args:
- APP_NAME=activities
tty: true
ports:
- "${ACTIVITIES_BACKEND_PORT}:${ACTIVITIES_BACKEND_PORT}" #activities
links :
- postgres
volumes:
- ./backend:/code
working_dir: /code/activities
networks:
- activities
hotels:
build:
context: ./backend
target: development
args:
- APP_NAME=hotels
tty: true
ports:
- "${HOTELS_BACKEND_PORT}:${HOTELS_BACKEND_PORT}" #hotels
links :
- postgres
volumes:
- ./backend:/code
working_dir: /code/hotels
networks:
- hotels
maps:
build:
context: ./backend
target: development
args:
- APP_NAME=maps
tty: true
ports:
- "${MAPS_BACKEND_PORT}:${MAPS_BACKEND_PORT}" #maps
links :
- postgres
volumes:
- ./backend:/code
working_dir: /code/maps
networks:
- maps
restaurants:
build:
context: ./backend
target: development
args:
- APP_NAME=restaurants
tty: true
ports:
- "${RESTAURANTS_BACKEND_PORT}:${RESTAURANTS_BACKEND_PORT}" #restaurants
links :
- postgres
volumes:
- ./backend:/code
working_dir: /code/restaurants
networks:
- restaurants
networks:
activities: {}
hotels: {}
maps: {}
restaurants: {}
main_app: {}
volumes:
postgres:
driver: local
storage:
driver: local
caddy_data:
caddy_config:
d. My complete Caddy config:
{
debug
}
epicroadtrip.local {
encode zstd gzip
file_server browse
}
api.epicroadtrip.local {
encode zstd gzip
file_server browse
reverse_proxy main_app:8000
}
3. The problem I’m having:
Can I access localhost:8000 on my machine ?
→ YES
Can I access epicroadtrip.local on my machine?
→ YES
I am trying to map api.epicroadtrip.local to main_app container on port 8000.
4. Error messages and/or full log output:
Result of
curl -vL --insecure https://api.epicroadtrip.local
* Trying 127.0.0.1:443...
* Connected to api.epicroadtrip.local (127.0.0.1) port 443 (#0)
* ALPN: offers h2
* ALPN: offers http/1.1
* (304) (OUT), TLS handshake, Client hello (1):
* (304) (IN), TLS handshake, Server hello (2):
* (304) (IN), TLS handshake, Unknown (8):
* (304) (IN), TLS handshake, Certificate (11):
* (304) (IN), TLS handshake, CERT verify (15):
* (304) (IN), TLS handshake, Finished (20):
* (304) (OUT), TLS handshake, Finished (20):
* SSL connection using TLSv1.3 / AEAD-CHACHA20-POLY1305-SHA256
* ALPN: server accepted h2
* Server certificate:
* subject: [NONE]
* start date: Feb 21 22:00:50 2023 GMT
* expire date: Feb 22 10:00:50 2023 GMT
* issuer: CN=Caddy Local Authority - ECC Intermediate
* SSL certificate verify result: unable to get local issuer certificate (20), continuing anyway.
* Using HTTP2, server supports multiplexing
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* h2h3 [:method: GET]
* h2h3 [:path: /]
* h2h3 [:scheme: https]
* h2h3 [:authority: api.epicroadtrip.local]
* h2h3 [user-agent: curl/7.86.0]
* h2h3 [accept: */*]
* Using Stream ID: 1 (easy handle 0x15680bc00)
> GET / HTTP/2
> Host: api.epicroadtrip.local
> user-agent: curl/7.86.0
> accept: */*
>
* Connection state changed (MAX_CONCURRENT_STREAMS == 250)!
< HTTP/2 502
< alt-svc: h3=":443"; ma=2592000
< server: Caddy
< content-length: 0
< date: Tue, 21 Feb 2023 23:06:59 GMT
<
* Connection #0 to host api.epicroadtrip.local left intact
Error message from caddy dockerized intance
{
"level":"error",
"ts":1677020819.036436,
"logger":"http.log.error",
"msg":"dial tcp: lookup main_app on 127.0.0.11:53: no such host",
"request":{
"remote_ip":"192.168.80.1",
"remote_port":"55472",
"proto":"HTTP/2.0",
"method":"GET",
"host":"api.epicroadtrip.local",
"uri":"/",
"headers":{
"User-Agent":[
"curl/7.86.0"
],
"Accept":[
"*/*"
]
},
"tls":{
"resumed":false,
"version":772,
"cipher_suite":4867,
"proto":"h2",
"server_name":"api.epicroadtrip.local"
}
},
"duration":0.02381975,
"status":502,
"err_id":"xgsndehs4",
"err_trace":"reverseproxy.statusError (reverseproxy.go:1299)"
}
5. What I already tried:
- In the Caddyfile, changing the
api.epicroadtrip.localtohttp://api.epicroadtrip.local
It seems the caddy instance is looking to map on its own “local” url and therefore can’t find the main_app one.