Apache Reverse Proxy Docker Graylog

Graylog Central (peer support)
1

Hi ,

I am following instruction http://docs.graylog.org/en/2.4/pages/configuration/web_interface.html#making-the-web-interface-work-with-load-balancers-proxies, to setup Dockerized Graylog with Apache Reverse Proxy. However I am unable to make it work:

OHS Config:

<VirtualHost *:7777>
ServerName example.com
RewriteEngine On
RewriteOptions inherit
UseCanonicalName On
RewriteRule ^/$ /(different prefex) [R]

<Location /graylog>
    RequestHeader set X-Graylog-Server-URL "http://example.com/api/"
    ProxyPass http://SERVER_HOSTNAME:9000/
    ProxyPassReverse http://SERVER_HOSTNAME:9000/
</Location>

Docker Compose config:

graylog:
    image: graylog:latest
    container_name: graylog
    environment:
        - GRAYLOG_PASSWORD_SECRET= <SECRET>
        -GRAYLOG_ROOT_PASSWORD_SHA2= <KEY>
        - GRAYLOG_WEB_ENDPOINT_URI=http://example.com:9000/api
        - GRAYLOG_ELASTICSEARCH_HOSTS=http://elasticsearch:9200
        - GRAYLOG_ROOT_TIMEZONE=US/Eastern
        - "DISABLE_TELEMETRY: '1'"
        - GRAYLOG_ROTATION_STRATEGY=time
        - GRAYLOG_ELASTICSEARCH_MAX_TIME_PER_INDEX=1d
        - GRAYLOG_MAX_NUMBER_OF_INDICES=20
    links:
        - mongodb:mongo
        - elasticsearch
    depends_on:
        - mongodb
        - elasticsearch
    expose:
        - 9000
    ports:
        - 9000:9000
        - 514:514
        - 514:514/udp
        - 1513:1513
        - 1513:1513/udp
        - 12900:12900
        - 12900:12900/udp

I still can’t reach http://example.com/graylog. Any help would be appreciated

2

Update:

I updated OHS config:

<Location />
    RequestHeader set X-Graylog-Server-URL "http://example.com/api/"
    ProxyPass http://SERVER_HOSTNAME:9000/
    ProxyPassReverse http:///SERVER_HOSTNAME:9000/
</Location>

Docker Config:

graylog:
    image: graylog:latest
    container_name: graylog
    environment:
        - GRAYLOG_WEB_ENDPOINT_URI=http://example.com:9000/api/
        - GRAYLOG_ELASTICSEARCH_HOSTS=http://elasticsearch:9200
        - GRAYLOG_ROOT_TIMEZONE=US/Eastern
        - "DISABLE_TELEMETRY: '1'"
        - GRAYLOG_ROTATION_STRATEGY=time
        - GRAYLOG_ELASTICSEARCH_MAX_TIME_PER_INDEX=1d
        - GRAYLOG_MAX_NUMBER_OF_INDICES=20

Now this gives me an error below when I hit example.com/graylog

Error message
cannot GET http://example.com/api/ (502)

3

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