Nginx conf json errors

nginx suggestions.md

Some nginx example confs

https://mattbrictson.com/nginx-reverse-proxy-cache

https://www.nginx.com/resources/wiki/start/topics/examples/full/

https://gist.github.com/weapp/9a3fd2c068cb206e9d40

https://gist.github.com/weapp/c1a88f6fe16dc2c14061

errors.min.nginxconf

    map $status $error_msg {
      default "";
      500 "Internal Server Error";
      502 "Bad Gateway";
      503 "Service Temporarily Unavailable";
      504 "Gateway Timeout";
      400 "Bad Request";
      401 "Unauthorized";
      403 "Forbidden";
      404 "Not Found";
      408 "Request Timeout";
      418 "I\'m a teapot";
    }

    server {
        listen      80;
        server_name example.com;
        root /home/manu/project/example;
        index       index.html;

        error_page 400 401 403 404 408 418 500 502 503 504 /$status.htm;

        location /500 { return 500 '{"error": {"status_code": $status, "status": "$error_msg"}}'; }
        location /502 { return 502 '{"error": {"status_code": $status, "status": "$error_msg"}}'; }
        location /503 { return 503 '{"error": {"status_code": $status, "status": "$error_msg"}}'; }
        location /504 { return 504 '{"error": {"status_code": $status, "status": "$error_msg"}}'; }
        location /400 { return 400 '{"error": {"status_code": $status, "status": "$error_msg"}}'; }
        location /401 { return 401 '{"error": {"status_code": $status, "status": "$error_msg"}}'; }
        location /403 { return 403 '{"error": {"status_code": $status, "status": "$error_msg"}}'; }
        location /404 { return 404 '{"error": {"status_code": $status, "status": "$error_msg"}}'; }
        location /408 { return 408 '{"error": {"status_code": $status, "status": "$error_msg"}}'; }
        location /418 { return 418 '{"error": {"status_code": $status, "status": "$error_msg"}}'; }

        location / {
            proxy_pass  http://rails;
            proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
            proxy_redirect off;
            proxy_buffering off;
            proxy_set_header        Host            $http_host;
            #proxy_set_header        Host            static.example.com;
            proxy_set_header        X-Real-IP       $remote_addr;
            proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        }
    }

errors.nginxconf

    server {
        listen      80;
        server_name example.com;
        root /home/manu/project/example;
        index       index.html;

        error_page 500 /500.html;
        location /500.html{
            return 500 '{"error": {"status_code": 500,"status": " Internal Server Error"}}';
        }

        error_page 502 /502.html;
        location /502.html{
            return 502 '{"error": {"status_code": 502,"status": "Bad Gateway"}}';
        }

        error_page 503 /503.html;
        location /503.html{
            return 503 '{"error": {"status_code": 503,"status": "Service Temporarily Unavailable"}}';
        }

        error_page 504 /504.html;
        location /504.html{
            return 504 '{"error": {"status_code": 504,"status": "Gateway Timeout"}}';
        }

        error_page 400 /400.html;
        location /400.html{
            return 400 '{"error": {"status_code": 400,"status": "Bad Request"}}';
        }

        error_page 401 /401.html;
        location /401.html{
            return 401 '{"error": {"status_code": 401,"status": "Unauthorized"}}';
        }

        error_page 403 /403.html;
        location /403.html{
            return 403 '{"error": {"status_code": 403,"status": "Forbidden"}}';
        }

        error_page 404 /404.html;
        location /404.html{
            return 404 '{"error": {"status_code": 404,"status": "Not Found"}}';
        }

        error_page 408 /408.html;
        location /408.html{
            return 408 '{"error": {"status_code": 408,"status": "Request Timeout}}';
        }

        error_page 418 /418.html;
        location /418.html{
            return 418 '{"error": {"status_code": 418,"status": "I\'m a teapot"}}';
        }


        # location @four_o_four {
        #     internal;
        #     #more_set_headers "X-Host: web4.ourdomain.com";
        #     #more_set_headers "Content-Type: application/json";
        #     return 502 '{"status":"Bad Gateway"}';
        # }



       location / {
            proxy_pass  http://rails;
            proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
            proxy_redirect off;
            proxy_buffering off;
            proxy_set_header        Host            $http_host;
            #proxy_set_header        Host            static.example.com;
            proxy_set_header        X-Real-IP       $remote_addr;
            proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        }
    }

unicorn.nginxconf

# This is example contains the bare mininum to get nginx going with
# Unicorn or Rainbows! servers.  Generally these configuration settings
# are applicable to other HTTP application servers (and not just Ruby
# ones), so if you have one working well for proxying another app
# server, feel free to continue using it.
#
# The only setting we feel strongly about is the fail_timeout=0
# directive in the "upstream" block.  max_fails=0 also has the same
# effect as fail_timeout=0 for current versions of nginx and may be
# used in its place.
#
# Users are strongly encouraged to refer to nginx documentation for more
# details and search for other example configs.

# you generally only need one nginx worker unless you're serving
# large amounts of static files which require blocking disk reads
worker_processes 1;

# # drop privileges, root is needed on most systems for binding to port 80
# # (or anything < 1024).  Capability-based security may be available for
# # your system and worth checking out so you won't need to be root to
# # start nginx to bind on 80
user nobody nogroup; # for systems with a "nogroup"
# user nobody nobody; # for systems with "nobody" as a group instead

# Feel free to change all paths to suite your needs here, of course
pid /path/to/nginx.pid;
error_log /path/to/nginx.error.log;

events {
  worker_connections 1024; # increase if you have lots of clients
  accept_mutex off; # "on" if nginx worker_processes > 1
  # use epoll; # enable for Linux 2.6+
  # use kqueue; # enable for FreeBSD, OSX
}

http {
  # nginx will find this file in the config directory set at nginx build time
  include mime.types;

  # fallback in case we can't determine a type
  default_type application/octet-stream;

  # click tracking!
  access_log /path/to/nginx.access.log combined;

  # you generally want to serve static files with nginx since neither
  # Unicorn nor Rainbows! is optimized for it at the moment
  sendfile on;

  tcp_nopush on; # off may be better for *some* Comet/long-poll stuff
  tcp_nodelay off; # on may be better for some Comet/long-poll stuff

  # we haven't checked to see if Rack::Deflate on the app server is
  # faster or not than doing compression via nginx.  It's easier
  # to configure it all in one place here for static files and also
  # to disable gzip for clients who don't get gzip/deflate right.
  # There are other gzip settings that may be needed used to deal with
  # bad clients out there, see http://wiki.nginx.org/NginxHttpGzipModule
  gzip on;
  gzip_http_version 1.0;
  gzip_proxied any;
  gzip_min_length 500;
  gzip_disable "MSIE [1-6]\.";
  gzip_types text/plain text/html text/xml text/css
             text/comma-separated-values
             text/javascript application/x-javascript
             application/atom+xml;

  # this can be any application server, not just Unicorn/Rainbows!
  upstream app_server {
    # fail_timeout=0 means we always retry an upstream even if it failed
    # to return a good HTTP response (in case the Unicorn master nukes a
    # single worker for timing out).

    # for UNIX domain socket setups:
    server unix:/path/to/.unicorn.sock fail_timeout=0;

    # for TCP setups, point these to your backend servers
    # server 192.168.0.7:8080 fail_timeout=0;
    # server 192.168.0.8:8080 fail_timeout=0;
    # server 192.168.0.9:8080 fail_timeout=0;
  }

  server {
    # enable one of the following if you're on Linux or FreeBSD
    # listen 80 default deferred; # for Linux
    # listen 80 default accept_filter=httpready; # for FreeBSD

    # If you have IPv6, you'll likely want to have two separate listeners.
    # One on IPv4 only (the default), and another on IPv6 only instead
    # of a single dual-stack listener.  A dual-stack listener will make
    # for ugly IPv4 addresses in $remote_addr (e.g ":ffff:10.0.0.1"
    # instead of just "10.0.0.1") and potentially trigger bugs in
    # some software.
    # listen [::]:80 ipv6only=on; # deferred or accept_filter recommended

    client_max_body_size 4G;
    server_name _;

    # ~2 seconds is often enough for most folks to parse HTML/CSS and
    # retrieve needed images/icons/frames, connections are cheap in
    # nginx so increasing this is generally safe...
    keepalive_timeout 5;

    # path for static files
    root /path/to/app/current/public;

    # Prefer to serve static files directly from nginx to avoid unnecessary
    # data copies from the application server.
    #
    # try_files directive appeared in in nginx 0.7.27 and has stabilized
    # over time.  Older versions of nginx (e.g. 0.6.x) requires
    # "if (!-f $request_filename)" which was less efficient:
    # http://bogomips.org/unicorn.git/tree/examples/nginx.conf?id=v3.3.1#n127
    try_files $uri/index.html $uri.html $uri @app;

    location @app {
      # an HTTP header important enough to have its own Wikipedia entry:
      #   http://en.wikipedia.org/wiki/X-Forwarded-For
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

      # enable this if you forward HTTPS traffic to unicorn,
      # this helps Rack set the proper URL scheme for doing redirects:
      # proxy_set_header X-Forwarded-Proto $scheme;

      # pass the Host: header from the client right along so redirects
      # can be set properly within the Rack application
      proxy_set_header Host $http_host;

      # we don't want nginx trying to do something clever with
      # redirects, we set the Host: header above already.
      proxy_redirect off;

      # set "proxy_buffering off" *only* for Rainbows! when doing
      # Comet/long-poll/streaming.  It's also safe to set if you're using
      # only serving fast clients with Unicorn + nginx, but not slow
      # clients.  You normally want nginx to buffer responses to slow
      # clients, even with Rails 3.1 streaming because otherwise a slow
      # client can become a bottleneck of Unicorn.
      #
      # The Rack application may also set "X-Accel-Buffering (yes|no)"
      # in the response headers do disable/enable buffering on a
      # per-response basis.
      # proxy_buffering off;

      proxy_pass http://app_server;
    }

    # Rails error pages
    error_page 500 502 503 504 /500.html;
    location = /500.html {
      root /path/to/app/current/public;
    }
  }
}