infrastructure/app/postgres/deploy/postgres.hcl

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job "postgres13.3" {
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datacenters = ["dc1"]
type = "system"
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priority = 90
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update {
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max_parallel = 1
min_healthy_time = "2m"
healthy_deadline = "5m"
auto_revert = true
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}
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group "postgres" {
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network {
port "psql_proxy_port" { static = 5432 }
port "psql_port" { static = 5433 }
}
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task "sentinel" {
driver = "docker"
config {
image = "superboum/amd64_postgres:v10"
network_mode = "host"
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readonly_rootfs = false
command = "/usr/local/bin/stolon-sentinel"
args = [
"--cluster-name", "chelidoine",
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"--store-backend", "consul",
"--store-endpoints", "http://consul.service.2.cluster.deuxfleurs.fr:8500",
]
}
resources {
memory = 100
}
}
task "proxy" {
driver = "docker"
config {
image = "superboum/amd64_postgres:v10"
network_mode = "host"
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readonly_rootfs = false
command = "/usr/local/bin/stolon-proxy"
args = [
"--cluster-name", "chelidoine",
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"--store-backend", "consul",
"--store-endpoints", "http://consul.service.2.cluster.deuxfleurs.fr:8500",
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"--port", "${NOMAD_PORT_psql_proxy_port}",
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"--listen-address", "0.0.0.0",
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"--log-level", "info"
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]
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ports = [ "psql_proxy_port" ]
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}
resources {
memory = 100
}
service {
tags = ["sql"]
port = "psql_proxy_port"
address_mode = "host"
name = "psql-proxy"
check {
type = "tcp"
port = "psql_proxy_port"
interval = "60s"
timeout = "5s"
check_restart {
limit = 3
grace = "10m"
ignore_warnings = false
}
}
}
}
task "keeper" {
driver = "docker"
config {
image = "superboum/amd64_postgres:v10"
network_mode = "host"
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readonly_rootfs = false
command = "/usr/local/bin/stolon-keeper"
args = [
"--cluster-name", "chelidoine",
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"--store-backend", "consul",
"--store-endpoints", "http://consul.service.2.cluster.deuxfleurs.fr:8500",
"--data-dir", "/mnt/persist",
"--pg-su-password", "${PG_SU_PWD}",
"--pg-repl-username", "${PG_REPL_USER}",
"--pg-repl-password", "${PG_REPL_PWD}",
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/*
The postgres daemon accepts 0.0.0.0, ::, and * here but not Stolon.
Otherwise you will have the following error and your cluster will be broken (no replication)
WARN cmd/keeper.go:1979 provided --pg-listen-address "*": is not an ip address but a hostname. This will be advertized to the other components and may have undefined behaviors if resolved differently by other hosts
WARN cmd/keeper.go:1984 cannot resolve provided --pg-listen-address "*": lookup *: no such host
*/
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"--pg-listen-address", "${attr.unique.network.ip-address}",
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"--pg-port", "${NOMAD_PORT_psql_port}",
"--pg-bin-path", "/usr/lib/postgresql/13/bin/"
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]
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ports = [ "psql_port" ]
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volumes = [
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"/mnt/ssd/postgres:/mnt/persist",
"/mnt/storage/postgres_extended:/mnt/slow"
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]
}
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template {
data = file("../config/keeper/env.tpl")
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destination = "secrets/env"
env = true
}
resources {
memory = 1000
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}
service {
tags = ["sql"]
port = "psql_port"
address_mode = "host"
name = "psql-keeper"
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check {
type = "tcp"
port = "psql_port"
interval = "60s"
timeout = "5s"
}
}
}
}
}