homelab-nomad/core/traefik/traefik.nomad

269 lines
5.8 KiB
HCL

variable "base_hostname" {
type = string
description = "Base hostname to serve content from"
default = "dev.homelab"
}
job "traefik" {
datacenters = ["dc1"]
type = "service"
priority = 100
constraint {
attribute = "${node.class}"
value = "ingress"
}
constraint {
distinct_hosts = true
}
update {
max_parallel = 1
# canary = 1
# auto_promote = true
auto_revert = true
}
group "traefik" {
count = 1
network {
port "web" {
static = 80
}
port "websecure" {
static = 443
}
port "syslog" {
static = 514
}
}
ephemeral_disk {
migrate = true
sticky = true
}
service {
name = "traefik"
provider = "nomad"
port = "web"
check {
type = "http"
path = "/ping"
port = "web"
interval = "10s"
timeout = "2s"
}
tags = [
"traefik.enable=true",
"traefik.http.routers.traefik.entryPoints=websecure",
"traefik.http.routers.traefik.service=api@internal",
]
}
task "traefik" {
driver = "docker"
meta = {
"diun.sort_tags" = "semver"
"diun.watch_repo" = true
"diun.include_tags" = "^[0-9]+\\.[0-9]+$"
}
config {
image = "traefik:2.9"
ports = ["web", "websecure"]
network_mode = "host"
mount {
type = "bind"
target = "/etc/traefik"
source = "local/config"
}
mount {
type = "bind"
target = "/etc/traefik/usersfile"
source = "secrets/usersfile"
}
}
template {
# Avoid conflict with TOML lists [[ ]] and Go templates {{ }}
left_delimiter = "<<"
right_delimiter = ">>"
data = <<EOH
[log]
level = "DEBUG"
[entryPoints]
[entryPoints.web]
address = ":80"
[entryPoints.web.http]
[entryPoints.web.http.redirections]
[entryPoints.web.http.redirections.entrypoint]
to = "websecure"
scheme = "https"
[entryPoints.websecure]
address = ":443"
[entryPoints.websecure.http.tls]
certResolver = "letsEncrypt"
[[entryPoints.websecure.http.tls.domains]]
main = "*.<< with nomadVar "nomad/jobs" >><< .base_hostname >><< end >>"
[entryPoints.metrics]
address = ":8989"
[entryPoints.syslogtcp]
address = ":514"
[entryPoints.syslogudp]
address = ":514/udp"
[api]
dashboard = true
[ping]
entrypoint = "web"
[metrics]
[metrics.prometheus]
entrypoint = "metrics"
# manualRouting = true
[providers.file]
directory = "/etc/traefik/conf"
watch = true
[providers.nomad]
exposedByDefault = false
defaultRule = "Host(`{{normalize .Name}}.<< with nomadVar "nomad/jobs" >><< .base_hostname >><< end >>`)"
[providers.nomad.endpoint]
address = "http://<< env "attr.unique.network.ip-address" >>:4646"
<< if nomadVarExists "nomad/jobs/traefik" ->>
[certificatesResolvers.letsEncrypt.acme]
email = "<< with nomadVar "nomad/jobs/traefik" >><< .acme_email >><< end >>"
# Store in /local because /secrets doesn't persist with ephemeral disk
storage = "/local/acme.json"
[certificatesResolvers.letsEncrypt.acme.dnsChallenge]
provider = "cloudflare"
resolvers = ["1.1.1.1:53", "8.8.8.8:53"]
delayBeforeCheck = 0
EOH
destination = "local/config/traefik.toml"
}
template {
data = <<EOH
{{ with nomadVar "nomad/jobs/traefik" -}}
CF_DNS_API_TOKEN={{ .domain_lego_dns }}
CF_ZONE_API_TOKEN={{ .domain_lego_dns }}
{{- end }}
EOH
destination = "secrets/cloudflare.env"
env = true
}
template {
data = <<EOH
[http]
[http.routers]
[http.routers.nomad]
entryPoints = ["websecure"]
service = "nomad"
rule = "Host(`nomad.{{ with nomadVar "nomad/jobs" }}{{ .base_hostname }}{{ end }}`)"
[http.services]
{{ with nomadService "nomad-client" -}}
[http.services.nomad]
[http.services.nomad.loadBalancer]
{{ range . -}}
[[http.services.nomad.loadBalancer.servers]]
url = "http://{{ .Address }}:{{ .Port }}"
{{ end }}
{{- end }}
EOH
destination = "local/config/conf/route-hashi.toml"
change_mode = "noop"
}
template {
data = <<EOH
{{ with nomadService "syslogng" -}}
[tcp.routers]
[tcp.routers.syslogtcp]
entryPoints = ["syslogtcp"]
service = "syslogngtcp"
rule = "HostSNI(`*`)"
[tcp.services]
[tcp.services.syslogngtcp]
[tcp.services.syslogngtcp.loadBalancer]
{{ range . -}}
[[tcp.services.syslogngtcp.loadBalancer.servers]]
address = "{{ .Address }}:{{ .Port }}"
{{ end -}}
{{ end }}
{{ with nomadService "syslogng" -}}
[udp.routers]
[udp.routers.syslogudp]
entryPoints = ["syslogudp"]
service = "syslogngudp"
[udp.services]
[udp.services.syslogngudp]
[udp.services.syslogngudp.loadBalancer]
{{ range . -}}
[[udp.services.syslogngudp.loadBalancer.servers]]
address = "{{ .Address }}:{{ .Port }}"
{{ end -}}
{{ end }}
EOH
destination = "local/config/conf/route-syslog-ng.toml"
change_mode = "noop"
}
template {
data = <<EOH
[http.middlewares]
{{ with nomadVar "nomad/jobs/traefik" }}
{{ if .usersfile }}
[http.middlewares.basic-auth.basicAuth]
# TODO: Reference secrets mount
usersFile = "/etc/traefik/usersfile"
{{ end }}
{{ end }}
EOH
destination = "local/config/conf/middlewares.toml"
change_mode = "noop"
}
template {
data = <<EOH
{{ with nomadVar "nomad/jobs/traefik" }}
{{ .usersfile }}
{{ end }}
EOH
destination = "secrets/usersfile"
change_mode = "noop"
}
resources {
cpu = 100
memory = 100
memory_max = 500
}
}
}
}