envoy_front_proxy_v2.template.yaml

{% import 'routing_helper_v2.template.yaml' as helper -%}
{% macro router_file_content() -%}{% include kwargs['router_file'] -%}{% endmacro -%}
{% macro listener(protocol, address, port_value, proxy_proto, tls) -%}
  name: not_required_for_static_listeners
  address:
    socket_address:
      protocol: {{protocol}}
      address: {{address}}
      port_value: {{port_value}}
  filter_chains:
  {% if tls %}
  - tls_context:
      common_tls_context:
        alpn_protocols: h2,http/1.1
        tls_certificates:
        - certificate_chain:
            filename: certs/servercert.pem
          private_key:
            filename: certs/serverkey.pem
        {% if kwargs.get('pin_double_proxy_client', False) %}
        validation_context:
          trusted_ca:
            filename: certs/cacert.pm
          #This should be the hash of the /etc/envoy/envoy-double-proxy.pem cert used in the
          #double proxy configuration.
          verify_certificate_hash: "0000000000000000000000000000000000000000000000000000000000000000"
        {% endif %}
    {%if proxy_proto%}
    use_proxy_proto: true
    {%endif%}
  {%endif %}
    filters:
    - name: envoy.http_connection_manager
      config:
        codec_type: AUTO
        stat_prefix: router
        {% if proxy_proto -%}
        use_remote_address: true
        {%endif-%}
        stat_prefix: ingress_http
        route_config:
          {{ router_file_content(router_file='envoy_router_v2.template.yaml')|indent(10) }}
        http_filters:
        - name: envoy.health_check
          config:
            pass_through_mode: false
            headers:
              - name: ":path"
                exact_match: "/healthcheck"
        - name: envoy.buffer
          config:
            max_request_bytes: 5242880
            max_request_time: 120s
        - name: envoy.rate_limit
          config:
            domain: envoy_front
            request_type: external
        - name: envoy.router
          config: {}
        add_user_agent: true
        tracing:
          operation_name: INGRESS
        idle_timeout: 840s
        access_log:
        - name: envoy.file_access_log
          filter:
            or_filter:
              filters:
                - status_code_filter:
                    comparison:
                      op: GE
                      value:
                        default_value: 500
                        runtime_key: access_log.access_error.status
                - duration_filter:
                    comparison:
                      op: GE
                      value:
                        default_value: 1000
                        runtime_key: access_log.access_error.duration
                - traceable_filter: {}
          config:
            path: "/var/log/envoy/access_error.log"
            format: "[%START_TIME%] \"%REQ(:METHOD)% %REQ(X-ENVOY-ORIGINAL-PATH?:PATH)% %PROTOCOL%\" %RESPONSE_CODE% %RESPONSE_FLAGS% %BYTES_RECEIVED% %BYTES_SENT% %DURATION% %RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)% \"%REQ(X-FORWARDED-FOR)%\" \"%REQ(USER-AGENT)%\" \"%REQ(X-REQUEST-ID)%\" \"%REQ(:AUTHORITY)%\" \"%REQ(X-LYFT-USER-ID)%\" \"%RESP(GRPC-STATUS)%\"\n"
{% endmacro -%}
static_resources:
  listeners:
    # TCP listeners for public HTTP/HTTPS endpoints. Assumes a TCP LB in front such as ELB which
    # supports proxy proto.
  - {{ listener("TCP", "0.0.0.0", "9300", True, True)|indent(2) }}
  - {{ listener("TCP", "0.0.0.0", "9301", True, True)|indent(2) }}
    # TCP listener for backhaul traffic from the double proxy.
    # See envoy_double_proxy.template.json
  - {{ listener("TCP", "0.0.0.0", "9400", True, True, pin_double_proxy_client=True)|indent(2) }}
  clusters:
  - name: sds
    type: STRICT_DNS
    connect_timeout: 0.25s
    lb_policy: ROUND_ROBIN
    hosts:
    - socket_address:
       protocol: TCP
       address: disccovery.yourcompany.net
       port_value: 80
  - name: statsd
    type: STATIC
    connect_timeout: 0.25s
    lb_policy: ROUND_ROBIN
    hosts:
    - socket_address:
        protocol: TCP
        address: 127.0.0.1
        port_value: 8125
  - name: lightstep_saas
    type: LOGICAL_DNS
    connect_timeout: 1s
    lb_policy: ROUND_ROBIN
    hosts:
    - socket_address:
        protocol: TCP
        address: collector-grpc.lightstep.com
        port_value: 443
    http2_protocol_options: {}
  {% for service, options in clusters.iteritems() -%}
  - {{ helper.internal_cluster_definition(service, options)|indent(2) }}
  {% endfor %}
dynamic_resources:
  deprecated_v1:
    sds_config:
      api_config_source:
        cluster_names:
        - sds
        refresh_delay: 30s
cluster_manager:
  outlier_detection:
    event_log_path: /var/log/envoy/outlier_events.log
flags_path: /etc/envoy/flags
rate_limit_service:
 grpc_service:
   envoy_grpc:
     cluster_name: ratelimit
tracing:
  http:
    name: envoy.lightstep
    config:
      collector_cluster: lightstep_saas
      access_token_file: "/etc/envoy/lightstep_access_token"
runtime:
  symlink_root: /srv/runtime_data/current
  subdirectory: envoy
  override_subdirectory: envoy_override
admin:
  access_log_path: /var/log/envoy/admin_access.log
  address:
    socket_address:
      protocol: TCP
      address: 0.0.0.0
      port_value: 9901