baileytownsend.dev
+57
-12
Caddyfile
+57
-12
Caddyfile
···
13
13
}
14
14
}
15
15
16
+
(lb_settings) {
17
+
lb_policy round_robin
18
+
lb_retries 100
19
+
lb_try_duration 10s
20
+
lb_try_interval 250ms
21
+
}
22
+
23
+
(passive_health_checks) {
24
+
fail_duration 60s
25
+
max_fails 300
26
+
unhealthy_latency 5s
27
+
unhealthy_request_count 200
28
+
}
29
+
16
30
# site block, listens on the $PORT environment variable, automatically assigned by railway
17
31
:{$PORT} {
18
32
# access logs
···
20
34
format json # set access log format to json mode
21
35
}
22
36
23
-
reverse_proxy {$FRONTEND_HOST} # proxy all requests for /* to the frontend, configure this variable in the service settings
37
+
# proxy all requests for /* to the frontend, configure these variables in the service settings
38
+
reverse_proxy {
39
+
# for private networking replicas are exposed as multiple dns results, use those dns results as the upstreams
40
+
dynamic a {
41
+
name {$FRONTEND_DOMAIN}
42
+
port {$FRONTEND_PORT}
43
+
refresh 1s
44
+
dial_timeout 30s
45
+
versions ipv4 ipv6
46
+
}
47
+
48
+
# configure load balancing settings
49
+
import lb_settings
50
+
51
+
# configure passive health checks
52
+
import passive_health_checks
53
+
54
+
# sets the Host header to the header to the dynamic name and port options
55
+
header_up Host {upstream_hostport}
56
+
}
24
57
25
58
# the handle_path directive WILL strip /api/ from the path before proxying
59
+
# use `handle` instead of `handle_path` if you dont want to strip the /api/ path
26
60
# this is needed if your backend's api routes don't start with /api/
27
61
# change paths as needed
28
-
handle_path /api/* {
62
+
handle_path {$BACKEND_PATH:/api}/* {
29
63
# the /api/ prefix WILL be stripped from the uri sent to the proxy host
30
-
reverse_proxy {$BACKEND_HOST} # proxy all requests for /api/* to the backend, configure this variable in the service settings
31
-
}
64
+
#
65
+
# proxy all requests for /api/* to the backend, configure this variable in the service settings
66
+
reverse_proxy {
67
+
# for private networking replicas are exposed as multiple dns results, use those dns results as the upstreams
68
+
dynamic a {
69
+
name {$BACKEND_DOMAIN}
70
+
port {$BACKEND_PORT}
71
+
refresh 1s
72
+
dial_timeout 30s
73
+
versions ipv4 ipv6
74
+
}
32
75
33
-
# this handle directive will NOT strip /api/ from the path before proxying
34
-
# if your backend's api routes do start with /api/ then you wouldn't want to strip the path prefix
35
-
# if so, comment out the above handle_path and reverse_proxy directives, and uncomment these handle and reverse_proxy directives
36
-
# change paths as needed
37
-
# handle /api/* {
38
-
# the /api/ prefix will NOT be stripped from the uri sent to the proxy host
39
-
# reverse_proxy {$BACKEND_HOST} # proxy all requests for /api/* to the backend, configure this variable in the service settings
40
-
# }
76
+
# configure load balancing settings
77
+
import lb_settings
78
+
79
+
# configure passive health checks
80
+
import passive_health_checks
81
+
82
+
# sets the Host header to the header to the dynamic name and port options
83
+
header_up Host {upstream_hostport}
84
+
}
85
+
}
41
86
}
+9
-3
Dockerfile
+9
-3
Dockerfile
···
1
1
FROM caddy:latest
2
2
3
-
COPY Caddyfile /etc/caddy/Caddyfile
3
+
WORKDIR /app
4
4
5
-
RUN caddy fmt --overwrite /etc/caddy/Caddyfile
5
+
COPY Caddyfile ./
6
6
7
-
CMD exec caddy run --config /etc/caddy/Caddyfile --adapter caddyfile 2>&1
7
+
COPY --chmod=755 entrypoint.sh ./
8
+
9
+
RUN caddy fmt --overwrite Caddyfile
10
+
11
+
ENTRYPOINT ["/bin/sh"]
12
+
13
+
CMD ["entrypoint.sh"]
+19
entrypoint.sh
+19
entrypoint.sh
···
1
+
#!/bin/sh
2
+
3
+
set -euo pipefail
4
+
5
+
# for backwards compatibility, seperates host and port from url
6
+
export FRONTEND_DOMAIN=${FRONTEND_DOMAIN:-${FRONTEND_HOST%:*}}
7
+
export FRONTEND_PORT=${FRONTEND_PORT:-${FRONTEND_HOST##*:}}
8
+
9
+
export BACKEND_DOMAIN=${BACKEND_DOMAIN:-${BACKEND_HOST%:*}}
10
+
export BACKEND_PORT=${BACKEND_PORT:-${BACKEND_HOST##*:}}
11
+
12
+
# strip https:// or https:// from domain if necessary
13
+
FRONTEND_DOMAIN=${FRONTEND_DOMAIN##*://}
14
+
BACKEND_DOMAIN=${BACKEND_DOMAIN##*://}
15
+
16
+
echo using frontend: ${FRONTEND_DOMAIN} with port: ${FRONTEND_PORT}
17
+
echo using backend: ${BACKEND_DOMAIN} with port: ${BACKEND_PORT}
18
+
19
+
exec caddy run --config Caddyfile --adapter caddyfile 2>&1