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TG-598 Add route metrics and healthz paths (#197)
* TG-598 Add route metrics and healthz paths * TG-598 Refactor routing metrics paths Co-authored-by: Filippo Morelli <[email protected]>
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102 changes: 102 additions & 0 deletions
102
{{cookiecutter.project_dirname}}/terraform/environment/modules/kubernetes/metrics/main.tf
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locals { | ||
basic_auth_ready = alltrue( | ||
[ | ||
var.basic_auth_enabled, | ||
var.basic_auth_username != "", | ||
var.basic_auth_password != "" | ||
] | ||
) | ||
} | ||
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terraform { | ||
required_providers { | ||
kubernetes = { | ||
source = "hashicorp/kubernetes" | ||
version = "2.9.0" | ||
} | ||
} | ||
} | ||
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/* Metrics Ingress Route */ | ||
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resource "kubernetes_secret_v1" "metrics_basic_auth" { | ||
count = local.basic_auth_ready ? 1 : 0 | ||
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metadata { | ||
name = "metrics-basic-auth" | ||
namespace = "kube-system" | ||
} | ||
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data = { | ||
username = var.basic_auth_username | ||
password = var.basic_auth_password | ||
} | ||
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type = "kubernetes.io/basic-auth" | ||
} | ||
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resource "kubernetes_manifest" "metrics_basic_auth_middleware" { | ||
count = local.basic_auth_ready ? 1 : 0 | ||
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manifest = { | ||
apiVersion = "traefik.containo.us/v1alpha1" | ||
kind = "Middleware" | ||
metadata = { | ||
name = "metrics-basic-auth-middleware" | ||
namespace = "kube-system" | ||
} | ||
spec = { | ||
basicAuth = { | ||
removeHeader = true | ||
secret = kubernetes_secret_v1.metrics_basic_auth[0].metadata[0].name | ||
} | ||
} | ||
} | ||
} | ||
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resource "kubernetes_manifest" "metrics_ingress_route" { | ||
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manifest = { | ||
apiVersion = "traefik.containo.us/v1alpha1" | ||
kind = "IngressRoute" | ||
metadata = { | ||
name = "metrics-ingress-route" | ||
namespace = "kube-system" | ||
} | ||
spec = merge( | ||
{ | ||
entryPoints = var.tls_secret_name != "" ? ["websecure"] : ["web"] | ||
routes = concat( | ||
local.basic_auth_ready ? [ | ||
{ | ||
kind = "Rule" | ||
match = "Host(`${var.project_domain}`) && PathPrefix(`/metrics`)" | ||
middlewares = [{ "name" : "metrics-basic-auth-middleware" }] | ||
services = [ | ||
{ | ||
name = "kube-state-metrics" | ||
port = 8080 | ||
} | ||
] | ||
}] : [], | ||
[{ | ||
kind = "Rule" | ||
match = "Host(`${var.project_domain}`) && PathPrefix(`/healthz`)" | ||
middlewares = [] | ||
services = [ | ||
{ | ||
name = "kube-state-metrics" | ||
port = 8080 | ||
} | ||
] | ||
} | ||
]) | ||
}, | ||
var.tls_secret_name != "" ? { | ||
tls = { | ||
secretName = var.tls_secret_name | ||
} | ||
} : {} | ||
) | ||
} | ||
} |
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...kiecutter.project_dirname}}/terraform/environment/modules/kubernetes/metrics/variables.tf
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variable "basic_auth_password" { | ||
description = "The basic_auth password." | ||
type = string | ||
sensitive = true | ||
default = "" | ||
} | ||
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variable "basic_auth_username" { | ||
description = "The basic_auth username." | ||
type = string | ||
default = "" | ||
} | ||
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variable "project_domain" { | ||
description = "The project domain." | ||
type = string | ||
} | ||
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variable "tls_secret_name" { | ||
description = "The tls secret name" | ||
type = string | ||
default = "" | ||
} |
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4 changes: 4 additions & 0 deletions
4
{{cookiecutter.project_dirname}}/terraform/environment/modules/kubernetes/routing/outputs.tf
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output "tls_secret_name" { | ||
description = "The name of the TLS certificate Kubernetes secret." | ||
value = local.tls_secret_name | ||
} |
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1
{{cookiecutter.project_dirname}}/terraform/environment/vars/.tfvars
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@@ -1,5 +1,6 @@ | ||
{% if "environment" in cookiecutter.tfvars %}{% for item in cookiecutter.tfvars.environment|sort %}{{ item }} | ||
{% endfor %}{% endif %}# database_connection_pool_size=1 | ||
# database_dumps_enabled=true | ||
# basic_auth_enabled=false | ||
# backend_service_extra_traefik_middlewares=[] | ||
# frontend_service_extra_traefik_middlewares=[] |