homelab-nomad/databases/redis.nomad

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job "redis-${name}" {
datacenters = ["dc1"]
type = "service"
priority = 80
group "cache" {
count = 1
ephemeral_disk {
migrate = true
sticky = true
size = 300
}
network {
mode = "bridge"
port "tls" {}
}
service {
name = "redis-${name}"
provider = "nomad"
port = "tls"
}
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task "redis" {
driver = "docker"
config {
image = "redis:6"
args = ["redis-server", "--save", "60", "1", "--loglevel", "warning", "--dir", "$${NOMAD_ALLOC_DIR}/data"]
ports = ["main"]
}
resources {
cpu = 100
memory = 128
memory_max = 512
}
}
task "stunnel" {
driver = "docker"
config {
image = "alpine:3.17"
ports = ["tls"]
args = ["/bin/sh", "$${NOMAD_TASK_DIR}/start.sh"]
}
resources {
cpu = 100
memory = 100
}
template {
data = <<EOF
set -e
apk add stunnel
exec stunnel $${NOMAD_TASK_DIR}/stunnel.conf
EOF
destination = "$${NOMAD_TASK_DIR}/start.sh"
}
template {
data = <<EOF
syslog = no
foreground = yes
delay = yes
[redis_server]
accept = {{ env "NOMAD_PORT_tls" }}
connect = 127.0.0.1:6379
ciphers = PSK
PSKsecrets = {{ env "NOMAD_SECRETS_DIR" }}/stunnel_psk.txt
EOF
destination = "$${NOMAD_TASK_DIR}/stunnel.conf"
}
template {
data = <<EOF
{{ with nomadVar "nomad/jobs/redis-${name}" -}}
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{{ .allowed_psks }}
{{- end }}
EOF
destination = "$${NOMAD_SECRETS_DIR}/stunnel_psk.txt"
}
}
}
}