homelab-nomad/backups/backup.nomad

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job "backup%{ if batch_node != null }-oneoff-${batch_node}%{ endif }" {
datacenters = ["dc1"]
%{ if batch_node == null ~}
type = "system"
%{ else ~}
type = "batch"
parameterized {
meta_required = ["job_name"]
meta_optional = ["task", "snapshot"]
}
meta {
task = "backup"
snapshot = "latest"
}
%{ endif ~}
%{ if batch_node == null ~}
constraint {
attribute = "$${node.unique.name}"
operator = "set_contains_any"
# Only deploy to nodes running tasks to backup
value = "n1,n2"
}
%{ else ~}
constraint {
attribute = "$${node.unique.name}"
value = "${batch_node}"
}
%{ endif ~}
group "backup" {
network {
mode = "bridge"
port "metrics" {
to = 8080
}
}
volume "all-volumes" {
type = "host"
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read_only = false
source = "all-volumes"
}
service {
port = "metrics"
# Add connect to mysql
connect {
sidecar_service {
proxy {
local_service_port = 8080
upstreams {
destination_name = "mysql-server"
local_bind_port = 6060
}
config {
protocol = "tcp"
}
}
}
sidecar_task {
resources {
cpu = 50
memory = 50
}
}
}
meta {
metrics_addr = "$${NOMAD_ADDR_metrics}"
}
}
task "backup" {
driver = "docker"
volume_mount {
volume = "all-volumes"
destination = "/data"
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read_only = false
}
config {
image = "iamthefij/resticscheduler"
ports = ["metrics"]
args = [
%{ if batch_node != null ~}
"-once",
"-$${NOMAD_META_task}",
"$${NOMAD_META_job_name}",
%{ endif ~}
"/jobs/node-jobs.hcl",
]
mount {
type = "bind"
target = "/jobs"
source = "jobs"
}
}
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vault {
policies = [
"access-tables",
"nomad-task",
]
}
env = {
"MYSQL_HOST" = "$${NOMAD_UPSTREAM_IP_mysql_server}"
"MYSQL_PORT" = "$${NOMAD_UPSTREAM_PORT_mysql_server}"
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}
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template {
# Probably want to use database credentials that have access to dump all tables
data = <<EOF
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{{ with secret "kv/data/nextcloud" -}}
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MYSQL_DATABASE={{ .Data.data.db_name }}
MYSQL_USER={{ .Data.data.db_user }}
MYSQL_PASSWORD={{ .Data.data.db_pass }}
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{{ end -}}
{{ with secret "kv/data/backups" -}}
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BACKUP_PASSPHRASE={{ .Data.data.backup_passphrase }}
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RCLONE_FTP_HOST={{ .Data.data.nas_ftp_host }}
RCLONE_FTP_USER={{ .Data.data.nas_ftp_user }}
RCLONE_FTP_PASS={{ .Data.data.nas_ftp_pass | toJSON }}
RCLONE_FTP_EXPLICIT_TLS=true
RCLONE_FTP_NO_CHECK_CERTIFICATE=true
{{ end -}}
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EOF
destination = "secrets/db.env"
env = true
}
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template {
data = <<EOH
CONSUL_HTTP_ADDR={{ env "attr.unique.network.ip-address" }}:8500
EOH
destination = "local/consul.env"
env = true
}
template {
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# Build jobs based on node
data = <<EOF
# Current node is {{ env "node.unique.name" }}
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{{ if eq (env "node.unique.name") "n2" -}}
# Consul backup
${file("${module_path}/jobs/consul.hcl")}
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{{ end -}}
{{ range service "nextcloud" -}}
# Nextcloud .Node {{ .Node }}
{{ if eq .Node (env "node.unique.name") -}}
${file("${module_path}/jobs/nextcloud.hcl")}
{{ end -}}
{{ end -}}
{{ range service "lldap" -}}
# Lldap .Node {{ .Node }}
{{ if eq .Node (env "node.unique.name") -}}
${file("${module_path}/jobs/lldap.hcl")}
{{ end -}}
{{ end -}}
EOF
destination = "jobs/node-jobs.hcl"
}
resources {
cpu = 50
memory = 256
}
}
}
}