# Webserver Configuration

# Helper 
_nginx_www_dir:   "{{ applications | get_app_conf('svc-prx-openresty','docker.volumes.www') }}"
_nginx_dir:       "{{ applications | get_app_conf('svc-prx-openresty','docker.volumes.nginx') }}"
_nginx_conf_dir:  "{{ _nginx_dir }}conf.d/"
_nginx_http_dir:  "{{ _nginx_conf_dir }}http/"

## Nginx-Specific Path Configurations
NGINX:
  FILES:
    CONFIGURATION:   "{{ _nginx_dir }}nginx.conf"
  DIRECTORIES:
    CONFIGURATION:    "{{ _nginx_conf_dir }}"               # Configuration directory
    HTTP:
      GLOBAL:         "{{ _nginx_http_dir }}global/"        # Contains global configurations which will be loaded into the http block
      SERVERS:        "{{ _nginx_http_dir }}servers/"       # Contains one configuration per domain
      MAPS:           "{{ _nginx_http_dir }}maps/"          # Contains mappings
    STREAMS:          "{{ _nginx_conf_dir }}streams/"       # Contains streams configuration e.g. for ldaps
    DATA:
      WWW:            "{{ _nginx_www_dir }}"
      WELL_KNOWN:     "/usr/share/nginx/well-known/"        # Path where well-known files are stored
      HTML:           "{{ _nginx_www_dir }}public_html/"    # Path where the static homepage files are stored
      FILES:          "{{ _nginx_www_dir }}public_files/"   # Path where the web accessable files are stored
      CDN:            "{{ _nginx_www_dir }}public_cdn/"     # Contains files which will be accessable via the content delivery network
      GLOBAL:         "{{ _nginx_www_dir }}global/"         # Directory containing files which will be globaly accessable, @Todo remove this when css migrated to CDN
    CACHE:
      GENERAL:        "/tmp/cache_nginx_general/"           # Directory which nginx uses to cache general data
      IMAGE:          "/tmp/cache_nginx_image/"             # Directory which nginx uses to cache images
  USER:               "http"                                # Default nginx user in ArchLinux

# Effective CPUs (float) across proxy and the current app
WEBSERVER_CPUS_EFFECTIVE: >-
  {{
    [
      (applications | resource_filter('svc-prx-openresty', 'cpus', service_name | default(''), RESOURCE_CPUS)) | float,
      (applications | resource_filter(application_id,           'cpus', service_name | default(''), RESOURCE_CPUS)) | float
    ] | min
  }}

# Nginx requires an integer for worker_processes:
# - if cpus < 1 → 1
# - else → floor to int
WEBSERVER_WORKER_PROCESSES: >-
  {{
    1 if WEBSERVER_CPUS_EFFECTIVE < 1
    else (WEBSERVER_CPUS_EFFECTIVE | int)
  }}

# worker_connections from pids_limit (use the smaller one), with correct key/defaults
WEBSERVER_WORKER_CONNECTIONS: >-
  {{
    [
      (applications | resource_filter('svc-prx-openresty', 'pids_limit', service_name | default(''), RESOURCE_PIDS_LIMIT)) | int,
      (applications | resource_filter(application_id,           'pids_limit', service_name | default(''), RESOURCE_PIDS_LIMIT)) | int
    ] | min
  }}

# @todo It propably makes sense to distinguish between target and source mount path, so that the config files can be stored in the openresty volumes folder