path: root/terraform-ci-infra/1n_nmd/nginx/conf/nomad/nginx.hcl

job "${job_name}" {
  # The "region" parameter specifies the region in which to execute the job.
  # If omitted, this inherits the default region name of "global".
  # region = "global"
  #
  # The "datacenters" parameter specifies the list of datacenters which should
  # be considered when placing this task. This must be provided.
  datacenters = "${datacenters}"

  # The "type" parameter controls the type of job, which impacts the scheduler's
  # decision on placement. This configuration is optional and defaults to
  # "service". For a full list of job types and their differences, please see
  # the online documentation.
  #
  # For more information, please see the online documentation at:
  #
  #     https://www.nomadproject.io/docs/jobspec/schedulers.html
  #
  type = "service"

  update {
    # The "max_parallel" parameter specifies the maximum number of updates to
    # perform in parallel. In this case, this specifies to update a single task
    # at a time.
    max_parallel      = 0

    # The "min_healthy_time" parameter specifies the minimum time the allocation
    # must be in the healthy state before it is marked as healthy and unblocks
    # further allocations from being updated.
    min_healthy_time  = "10s"

    # The "healthy_deadline" parameter specifies the deadline in which the
    # allocation must be marked as healthy after which the allocation is
    # automatically transitioned to unhealthy. Transitioning to unhealthy will
    # fail the deployment and potentially roll back the job if "auto_revert" is
    # set to true.
    healthy_deadline  = "3m"

    # The "progress_deadline" parameter specifies the deadline in which an
    # allocation must be marked as healthy. The deadline begins when the first
    # allocation for the deployment is created and is reset whenever an allocation
    # as part of the deployment transitions to a healthy state. If no allocation
    # transitions to the healthy state before the progress deadline, the
    # deployment is marked as failed.
    progress_deadline = "10m"

    # The "auto_revert" parameter specifies if the job should auto-revert to the
    # last stable job on deployment failure. A job is marked as stable if all the
    # allocations as part of its deployment were marked healthy.
    auto_revert       = false

    # The "canary" parameter specifies that changes to the job that would result
    # in destructive updates should create the specified number of canaries
    # without stopping any previous allocations. Once the operator determines the
    # canaries are healthy, they can be promoted which unblocks a rolling update
    # of the remaining allocations at a rate of "max_parallel".
    #
    # Further, setting "canary" equal to the count of the task group allows
    # blue/green deployments. When the job is updated, a full set of the new
    # version is deployed and upon promotion the old version is stopped.
    canary            = 0
  }

  # The reschedule stanza specifies the group's rescheduling strategy. If
  # specified at the job level, the configuration will apply to all groups
  # within the job. If the reschedule stanza is present on both the job and the
  # group, they are merged with the group stanza taking the highest precedence
  # and then the job.
  reschedule {
    delay             = "30s"
    delay_function    = "constant"
    unlimited         = true
  }

  # The "group" stanza defines a series of tasks that should be co-located on
  # the same Nomad client. Any task within a group will be placed on the same
  # client.
  #
  # For more information and examples on the "group" stanza, please see
  # the online documentation at:
  #
  #     https://www.nomadproject.io/docs/job-specification/group.html
  #
  group "prod-group1-nginx" {
    # The "count" parameter specifies the number of the task groups that should
    # be running under this group. This value must be non-negative and defaults
    # to 1.
    count = 1

    # https://www.nomadproject.io/docs/job-specification/volume
    %{ if use_host_volume }
    volume "prod-volume1-nginx" {
      type      = "host"
      read_only = false
      source    = "${host_volume}"
    }
    %{ endif }

    # The restart stanza configures a tasks's behavior on task failure. Restarts
    # happen on the client that is running the task.
    restart {
      interval  = "10m"
      attempts  = 2
      delay     = "15s"
      mode      = "fail"
    }

    # The "task" stanza creates an individual unit of work, such as a Docker
    # container, web application, or batch processing.
    #
    # For more information and examples on the "task" stanza, please see
    # the online documentation at:
    #
    #     https://www.nomadproject.io/docs/job-specification/task.html
    #
    task "prod-task1-nginx" {
      # The "driver" parameter specifies the task driver that should be used to
      # run the task.
      driver = "docker"

      # The "config" stanza specifies the driver configuration, which is passed
      # directly to the driver to start the task. The details of configurations
      # are specific to each driver, so please see specific driver
      # documentation for more information.
      config {
        image        = "nginx:stable"
        dns_servers  = [ "$${attr.unique.network.ip-address}" ]
        port_map {
          https      = 443
        }
        privileged   = false
        volumes      = [
          "/etc/consul.d/ssl/consul.pem:/etc/ssl/certs/nginx-cert.pem",
          "/etc/consul.d/ssl/consul-key.pem:/etc/ssl/private/nginx-key.pem",
          "custom/upstream.conf:/etc/nginx/conf.d/upstream.conf",
          "custom/logs.conf:/etc/nginx/conf.d/logs.conf",
          "custom/docs.conf:/etc/nginx/conf.d/docs.conf"
        ]
      }

      # The "template" stanza instructs Nomad to manage a template, such as
      # a configuration file or script. This template can optionally pull data
      # from Consul or Vault to populate runtime configuration data.
      #
      # For more information and examples on the "template" stanza, please see
      # the online documentation at:
      #
      #     https://www.nomadproject.io/docs/job-specification/template.html
      #
      template {
        data = <<EOH
          upstream storage {
            server storage0.storage.service.consul:9000;
            server storage1.storage.service.consul:9000;
            server storage2.storage.service.consul:9000;
            server storage3.storage.service.consul:9000;
          }
        EOH
        destination = "custom/upstream.conf"
      }
      template {
        data = <<EOH
          server {
            listen 443 ssl default_server;
            server_name logs.nginx.service.consul;
            keepalive_timeout 70;
            ssl_session_cache shared:SSL:10m;
            ssl_session_timeout 10m;
            ssl_protocols TLSv1.2;
            ssl_prefer_server_ciphers on;
            ssl_ciphers "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384";
            ssl_certificate /etc/ssl/certs/nginx-cert.pem;
            ssl_certificate_key /etc/ssl/private/nginx-key.pem;
            location / {
              chunked_transfer_encoding off;
              proxy_connect_timeout 300;
              proxy_http_version 1.1;
              proxy_set_header Host $host:$server_port;
              proxy_set_header Connection "";
              proxy_pass http://storage/logs.fd.io/;
              server_name_in_redirect off;
            }
            location ~ (.*html.gz)$ {
              add_header Content-Encoding gzip;
              add_header Content-Type text/html;
              chunked_transfer_encoding off;
              proxy_connect_timeout 300;
              proxy_http_version 1.1;
              proxy_set_header Host $host:$server_port;
              proxy_set_header Connection "";
              proxy_pass http://storage/logs.fd.io/$1;
              server_name_in_redirect off;
            }
            location ~ (.*txt.gz|.*log.gz)$ {
              add_header Content-Encoding gzip;
              add_header Content-Type text/plain;
              chunked_transfer_encoding off;
              proxy_connect_timeout 300;
              proxy_http_version 1.1;
              proxy_set_header Host $host:$server_port;
              proxy_set_header Connection "";
              proxy_pass http://storage/logs.fd.io/$1;
              server_name_in_redirect off;
            }
            location ~ (.*xml.gz)$ {
              add_header Content-Encoding gzip;
              add_header Content-Type application/xml;
              chunked_transfer_encoding off;
              proxy_connect_timeout 300;
              proxy_http_version 1.1;
              proxy_set_header Host $host:$server_port;
              proxy_set_header Connection "";
              proxy_pass http://storage/logs.fd.io/$1;
              server_name_in_redirect off;
            }
        }
        EOH
        destination = "custom/logs.conf"
      }
      template {
        data = <<EOH
          server {
            listen 443 ssl;
            server_name docs.nginx.service.consul;
            keepalive_timeout 70;
            ssl_session_cache shared:SSL:10m;
            ssl_session_timeout 10m;
            ssl_protocols TLSv1.2;
            ssl_prefer_server_ciphers on;
            ssl_ciphers "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384";
            ssl_certificate /etc/ssl/certs/nginx-cert.pem;
            ssl_certificate_key /etc/ssl/private/nginx-key.pem;
            location / {
              chunked_transfer_encoding off;
              proxy_connect_timeout 300;
              proxy_http_version 1.1;
              proxy_set_header Host $host:$server_port;
              proxy_set_header Connection "";
              proxy_pass http://storage/docs.fd.io/;
              server_name_in_redirect off;
            }
          }
        EOH
        destination = "custom/docs.conf"
      }

      # The service stanza instructs Nomad to register a service with Consul.
      #
      # For more information and examples on the "task" stanza, please see
      # the online documentation at:
      #
      #     https://www.nomadproject.io/docs/job-specification/service.html
      #
      service {
        name       = "nginx"
        port       = "https"
        tags       = [ "docs", "logs" ]
      }

      # The "resources" stanza describes the requirements a task needs to
      # execute. Resource requirements include memory, network, cpu, and more.
      # This ensures the task will execute on a machine that contains enough
      # resource capacity.
      #
      # For more information and examples on the "resources" stanza, please see
      # the online documentation at:
      #
      #     https://www.nomadproject.io/docs/job-specification/resources.html
      #
      resources {
        cpu        = 1000
        memory     = 1024
        network {
          mode     = "bridge"
          port "https" {
            static = 443
          }
        }
      }
    }
  }
}