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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.
#
# https://www.nomadproject.io/docs/job-specification/restart
#
restart {
interval = "30m"
attempts = 40
delay = "15s"
mode = "delay"
}
# 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"
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 {
{{ range service "storage" }}
server {{ .Address }}:{{ .Port }};
{{ end }}
}
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 = 2000
memory = 4096
network {
mode = "bridge"
port "https" {
static = 443
}
}
}
}
}
}
|
