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egress-gateway
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This commit is contained in:
Daniel Berteaud 2023-08-22 15:24:35 +02:00
commit fa8240e808
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76
egress-gateway.hcl Normal file
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job "egress-gateway" {
datacenters = [[ .nomad.datacenters | toJSON ]]
# Egress GW runs on ddedicated, unrestricted nodes
[[- if has .egress_gw "node_pool" ]]
node_pool = [[ .egress_gw.node_pool ]]
[[- end ]]
group "egress-gateway" {
network {
mode = "bridge"
}
# Terminating gateway definition
service {
name = "egress-gateway[[ .env_suffix ]]"
connect {
gateway {
proxy {}
terminating {
[[- range $service, $def := .egress_gw.services ]]
service {
name = [[ $service | toJSON ]]
[[- range $kv, $v := $def ]]
[[ $k ]] = [[ $v | toJSON ]]
[[- end ]]
}
[[- end ]]
}
sidecar_task {
config {
# Access the CA certificate
volumes = ["../alloc/data:/data"]
}
resources {
cpu = [[ .sidecar_cpu ]]
memory = [[ .sidecar_memory ]]
}
}
}
}
# Dummy task to configure custom CA certificates
# Needed because template is not supported in sidecar_task
task "downloader" {
driver = "exec"
config {
command = "/bin/true"
}
# The task will just quit immediatly, mark it as a prestart hook
lifecycle {
hook = "prestart"
}
[[- range $k, $v := .egress_gw.ca_certs ]]
template {
data =<<_EOF
[[ $v ]]
_EOF
destination = "${NOMAD_ALLOC_DIR}/data/[[ $k ]].crt"
}
# Give just enough resources
resources {
cpu = 10
memory = 10
memory_max = 20
}
}
}
}
# vim: syntax=hcl

31
templates/isrgrootx1.pem.tpl Normal file
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-----BEGIN CERTIFICATE-----
MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw
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-----END CERTIFICATE-----

58
variables.yml Normal file
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---
root_ca_url: https://letsencrypt.org/certs/isrgrootx1.pem
egress_gw:
# Nomad node pool to run the gateway on
# node_pool: output
# Number of instances
count: 1
# Exposed services
# services:
# ldap: {}
# mysql:
# ca_file: /data/my_ca.crt
services: []
# Custom CA
# ca_certs:
# my_ca: |
# -----BEGIN CERTIFICATE-----
# XXXXX
# -----END CERTIFICATE-----
ca_certs:
isrgrootx1: |
-----BEGIN CERTIFICATE-----
MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw
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-----END CERTIFICATE-----