Handles HTTPS proxying with automatic self-signed serts for SSL termination.
This HTTPS proxy container is intended primarily for use with APIs (headless web services).
While many languages in which you write such services have a strong HTTP library, they are not full-featured, production-grade HTTP servers covering all the standard needs out-of-box, and it is easier to configure nginx and rely on it's maturity than build many of these features in custom code.
docker run --rm -it \
-e "UPSTREAM_DOMAIN=api.projectname.vm" \
-e "UPSTREAM_PORT=3773" \
-e "PROXY_DOMAIN=proxy.projectname.vm" \
-l "com.dnsdock.name=proxy" \
-l "com.dnsdock.image=projectname" \
outrigger/https-proxy:1.0 # docker-compose run --rm proxy
# The UPSTREAM service must be running.
# https://proxy.projectname.vm
proxy:
build: outrigger/https-proxy:1.0
container_name: projectname_http_proxy
depends_on:
- api
labels:
com.dnsdock.name: proxy
com.dnsdock.image: projectname
environment:
UPSTREAM_DOMAIN: api.projectname.vm
UPSTREAM_PORT: 3773
PROXY_DOMAIN: proxy.projectname.vm
network_mode: bridgeThis image was created after finding https://github.com/fsouza/docker-ssl-proxy was very difficult to customize, but the simple untrusted SSL for local development was still valuable.
In the future steps might be taken to facilitate more of a trust mechanism.
The SSL certificate is generated using a own-ROOT-ca that is available in the directory /etc/nginx/ca. If made available to other containers or the local system this will serve as the basis to trust the application certificate.
You can use existing SSL certificates for your proxy domain by mounting a volume to /etc/nginx/certs with following files inside:
- key.pem: Private key file
- cert.pem: Certificate file
The certificate generator will abort if it finds an existing key.pem file.
Responses of at least 1000 bytes will be subject to gzip compression at level 6.
Rate Limits are more common with API-based services than other webapps. It is a request throttle to ensure no one system monopolizes the available server resources.
This is defaulted to enabled (at 20 requests per second) but can be disabled by setting the RATE_LIMIT environment variable to "0".
In the event the limit is reached, nginx will respond with a 429 Too Many Requests response.
- https://www.nginx.com/blog/rate-limiting-nginx/
- http://nginx.org/en/docs/http/ngx_http_limit_req_module.html
- https://tools.ietf.org/html/rfc6585#section-4
There is a configuration file to impose IP-based Whitelisting and Blacklisting rules. These are best handled in the nginx layer rather than in your application, as your application is unlikely to handle it as efficiently as nginx can.
Follow the instructions in ./root/etc/nginx/conf.d/10-ip-access.conf to use it in your project.
Outrigger images use Environment Variables and confd
to templatize a number of Docker environment configurations. These templates are
processed on startup with environment variables passed in via the docker run
command-line or via your docker-compose.yml manifest file.
CLIENT_MAX_BODY_SIZE: [20M] Maximium size of client uploads.GZIP_APPROVED_MIME_TYPES: [``] Additional MIME types to include in gzip compression.PROXY_DOMAIN: [www.example.com] The domain in the SSL certificate. Relayed via X-Forwarded-Host HTTP header.RATE_LIMIT: [20] Throttled requests per second per client IP address.RATE_LIMIT_BURST_QUEUE: [10] Number of requests to delay before enforcing the limit.UPSTREAM_DOMAIN: [proxied.example.com] The target host for the reverse proxy. Relayed via Host HTTP header.UPSTREAM_PORT: [80] The target port for the proxied service.
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