233 lines
8.9 KiB
Nginx Configuration File
233 lines
8.9 KiB
Nginx Configuration File
user nginx;
|
|
worker_processes auto;
|
|
|
|
error_log /var/log/nginx/error.log warn;
|
|
pid /var/run/nginx.pid;
|
|
|
|
events {
|
|
worker_connections 1024;
|
|
}
|
|
|
|
http {
|
|
map_hash_bucket_size 128;
|
|
include /etc/nginx/mime.types;
|
|
default_type application/octet-stream;
|
|
|
|
# Use a debug-oriented logging format.
|
|
log_format debugging '$remote_addr - $remote_user [$time_local] "$request" '
|
|
'$status $body_bytes_sent '
|
|
'"HOST: $host" "UPSTREAM: $upstream_addr" '
|
|
'"UPSTREAM-STATUS: $upstream_status" '
|
|
'"SSL-PROTO: $ssl_protocol" '
|
|
'"CONNECT-HOST: $connect_host" "CONNECT-PORT: $connect_port" "CONNECT-ADDR: $connect_addr" '
|
|
'"PROXY-HOST: $proxy_host" "UPSTREAM-REDIRECT: $upstream_http_location" "CACHE-STATUS: $upstream_cache_status" '
|
|
'"AUTH: $http_authorization" ' ;
|
|
|
|
log_format tweaked '$upstream_cache_status [$time_local] "$uri" '
|
|
'$status $body_bytes_sent '
|
|
'"HOST:$host" '
|
|
'"PROXY-HOST:$proxy_host" "UPSTREAM:$upstream_addr" ';
|
|
|
|
keepalive_timeout 300;
|
|
gzip off;
|
|
|
|
# The cache directory. This can get huge. Better to use a Docker volume pointing here!
|
|
# Set to 32gb which should be enough
|
|
proxy_cache_path /docker_mirror_cache levels=1:2 max_size=32g inactive=60d keys_zone=cache:10m use_temp_path=off;
|
|
|
|
# Just in case you want to rewrite some hosts. Default maps directly.
|
|
map $host $targetHost {
|
|
hostnames;
|
|
default $host;
|
|
}
|
|
|
|
# A map to enable authentication to some specific docker registries.
|
|
# This is auto-generated by the entrypoint.sh based on environment variables
|
|
map $host $dockerAuth {
|
|
hostnames;
|
|
include /etc/nginx/docker.auth.map;
|
|
default "";
|
|
}
|
|
|
|
# Map to decide which hosts get directed to the caching portion.
|
|
# This is automatically generated from the list of cached registries, plus a few fixed hosts
|
|
# By default, we don't intercept, allowing free flow of non-registry traffic
|
|
map $connect_host $interceptedHost {
|
|
hostnames;
|
|
include /etc/nginx/docker.intercept.map;
|
|
default "$connect_host:443";
|
|
}
|
|
|
|
map $dockerAuth $finalAuth {
|
|
"" "$http_authorization"; # if empty, keep the original passed-in from the client
|
|
default "Basic $dockerAuth"; # if not empty, add the Basic preamble to the auth
|
|
}
|
|
|
|
|
|
# These maps parse the original Host and URI from a /forcecache redirect.
|
|
map $request_uri $realHost {
|
|
~/forcecacheinsecure/([^:/]+)/originalwas(/.+) $1;
|
|
~/forcecachesecure/([^:/]+)/originalwas(/.+) $1;
|
|
default "DID_NOT_MATCH_HOST";
|
|
}
|
|
|
|
map $request_uri $realPath {
|
|
~/forcecacheinsecure/([^:/]+)/originalwas(/.+) $2;
|
|
~/forcecachesecure/([^:/]+)/originalwas(/.+) $2;
|
|
default "DID_NOT_MATCH_PATH";
|
|
}
|
|
|
|
|
|
# The proxy director layer, listens on 3128
|
|
server {
|
|
listen 3128;
|
|
server_name _;
|
|
|
|
# dont log the CONNECT proxy.
|
|
access_log off;
|
|
|
|
proxy_connect;
|
|
proxy_connect_address $interceptedHost;
|
|
proxy_max_temp_file_size 0;
|
|
|
|
# We need to resolve the real names of our proxied servers.
|
|
resolver 8.8.8.8 4.2.2.2 ipv6=off; # Avoid ipv6 addresses for now
|
|
|
|
# forward proxy for non-CONNECT request
|
|
location / {
|
|
return 403 "The docker caching proxy is working!";
|
|
}
|
|
|
|
location /ca.crt {
|
|
alias /ca/ca.crt;
|
|
}
|
|
|
|
# @TODO: add a dynamic root path that generates instructions for usage on docker clients
|
|
}
|
|
|
|
|
|
# The caching layer
|
|
server {
|
|
# Listen on both 80 and 443, for all hostnames.
|
|
listen 80 default_server;
|
|
listen 443 ssl default_server;
|
|
server_name _;
|
|
|
|
# Do some tweaked logging.
|
|
access_log /var/log/nginx/access.log tweaked;
|
|
|
|
# Use the generated certificates, they contain names for all the proxied registries.
|
|
ssl_certificate /certs/fullchain.pem;
|
|
ssl_certificate_key /certs/web.key;
|
|
|
|
# We need to resolve the real names of our proxied servers.
|
|
resolver 8.8.8.8 4.2.2.2 ipv6=off; # Avoid ipv6 addresses for now
|
|
|
|
# Docker needs this. Don't ask.
|
|
chunked_transfer_encoding on;
|
|
|
|
# Block POST/PUT/DELETE. Don't use this proxy for pushing.
|
|
if ($request_method = POST) {
|
|
return 405 "POST method is not allowed";
|
|
}
|
|
if ($request_method = PUT) {
|
|
return 405 "PUT method is not allowed";
|
|
}
|
|
if ($request_method = DELETE) {
|
|
return 405 "DELETE method is not allowed";
|
|
}
|
|
|
|
proxy_read_timeout 900;
|
|
|
|
# Use cache locking, with a huge timeout, so that multiple Docker clients asking for the same blob at the same time
|
|
# will wait for the first to finish instead of doing multiple upstream requests.
|
|
proxy_cache_lock on;
|
|
proxy_cache_lock_timeout 120s;
|
|
|
|
# Cache all 200, 301, 302, and 307 (emitted by private registries) for 60 days.
|
|
proxy_cache_valid 200 301 302 307 60d;
|
|
|
|
# Some extra settings to maximize cache hits and efficiency
|
|
proxy_force_ranges on;
|
|
proxy_ignore_client_abort on;
|
|
proxy_cache_revalidate on;
|
|
|
|
# Hide/ignore headers from caching. S3 especially likes to send Expires headers in the past in some situations.
|
|
proxy_hide_header Set-Cookie;
|
|
proxy_ignore_headers X-Accel-Expires Expires Cache-Control Set-Cookie;
|
|
|
|
# Add the authentication info, if the map matched the target domain.
|
|
proxy_set_header Authorization $finalAuth;
|
|
|
|
# This comes from a include file generated by the entrypoint.
|
|
include /etc/nginx/docker.verify.ssl.conf;
|
|
|
|
# Some debugging info
|
|
# add_header X-Docker-Caching-Proxy-Real-Host $realHost;
|
|
# add_header X-Docker-Caching-Proxy-Real-Path $realPath;
|
|
# add_header X-Docker-Caching-Proxy-Auth $finalAuth;
|
|
|
|
# Block API v1. We dont know how to handle these.
|
|
# Docker-client should start with v2 and fallback to v1 if something fails, for example, if authentication failed to a protected v2 resource.
|
|
location /v1 {
|
|
return 405 "API v1 is invalid -- you probably need auth to get a v2 endpoint working against $host -- Check the docs";
|
|
}
|
|
|
|
# don't cache mutable entity /v2/<name>/manifests/<reference> (unless the reference is a digest)
|
|
location ~ ^/v2/[^\/]+/manifests/(?![A-Fa-f0-9_+.-]+:) {
|
|
proxy_pass https://$targetHost;
|
|
}
|
|
|
|
# don't cache mutable entity /v2/<name>/tags/list
|
|
location ~ ^/v2/[^\/]+/tags/list {
|
|
proxy_pass https://$targetHost;
|
|
}
|
|
|
|
# don't cache mutable entity /v2/_catalog
|
|
location ~ ^/v2/_catalog$ {
|
|
proxy_pass https://$targetHost;
|
|
}
|
|
|
|
# force cache of the first hit which is always /v2/ - even for 401 unauthorized.
|
|
location = /v2/ {
|
|
proxy_pass https://$targetHost;
|
|
proxy_cache cache;
|
|
proxy_cache_valid 200 301 302 307 401 60d;
|
|
}
|
|
|
|
# cache everything else
|
|
location / {
|
|
proxy_pass https://$targetHost;
|
|
proxy_cache cache;
|
|
|
|
# Handling of redirects.
|
|
# Many registries (eg, quay.io, or k8s.gcr.io) emit a Location redirect
|
|
# pointing to something like cloudfront, or google storage.
|
|
# We hack into the response, extracting the host and URI parts, injecting them into a URL that points back to us
|
|
# That gives us a chance to intercept and cache those, which are the actual multi-megabyte blobs we originally wanted to cache.
|
|
# We to it twice, one for http and another for https.
|
|
proxy_redirect ~^https://([^:/]+)(/.+)$ https://docker.caching.proxy.internal/forcecachesecure/$1/originalwas$2;
|
|
proxy_redirect ~^http://([^:/]+)(/.+)$ http://docker.caching.proxy.internal/forcecacheinsecure/$1/originalwas$2;
|
|
}
|
|
|
|
# handling for the redirect case explained above, with https.
|
|
# The $realHost and $realPath variables come from a map defined at the top of this file.
|
|
location /forcecachesecure {
|
|
proxy_pass https://$realHost$realPath;
|
|
proxy_cache cache;
|
|
|
|
# Change the cache key, so that we can cache signed S3 requests and such. Only host and path are considered.
|
|
proxy_cache_key $proxy_host$uri;
|
|
}
|
|
|
|
# handling for the redirect case explained above, with http.
|
|
# The $realHost and $realPath variables come from a map defined at the top of this file.
|
|
location /forcecacheinsecure {
|
|
proxy_pass http://$realHost$realPath;
|
|
proxy_cache cache;
|
|
|
|
# Change the cache key, so that we can cache signed S3 requests and such. Only host and path are considered.
|
|
proxy_cache_key $proxy_host$uri;
|
|
}
|
|
}
|
|
} |